Merge branch 'feature/listview' into 'master'

Feature/listview



See merge request !10

Android/app/src/main/java/pub/doric/demo/MainActivity.java

@@ -22,15 +22,16 @@ import android.widget.FrameLayout;
 
 import androidx.appcompat.app.AppCompatActivity;
 
+
 import org.greenrobot.eventbus.EventBus;
 import org.greenrobot.eventbus.Subscribe;
 import org.greenrobot.eventbus.ThreadMode;
 
 import java.io.IOException;
 
+import pub.doric.dev.DevPanel;
 import pub.doric.DoricContext;
 import pub.doric.DoricDriver;
-import pub.doric.dev.DevPanel;
 import pub.doric.dev.LocalServer;
 import pub.doric.dev.event.EnterDebugEvent;
 import pub.doric.dev.event.QuitDebugEvent;
@@ -49,9 +50,8 @@ public class MainActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
 
         setContentView(R.layout.activity_main);
-        doricContext = DoricContext.create(this, DoricUtils.readAssetFile("demo/Snake.js"), "test");
+        doricContext = DoricContext.create(this, DoricUtils.readAssetFile("demo/ListDemo.js"), "test");
         doricContext.init(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
-//        doricContext.callEntity("log");
         doricContext.getRootNode().setRootView((FrameLayout) findViewById(R.id.root));
 
         LocalServer localServer = new LocalServer(getApplicationContext(), 8910);

Android/doric/src/main/java/pub/doric/DoricRegistry.java

@@ -20,6 +20,8 @@ import android.text.TextUtils;
 import pub.doric.plugin.ShaderPlugin;
 import pub.doric.shader.HLayoutNode;
 import pub.doric.shader.ImageNode;
+import pub.doric.shader.list.ListItemNode;
+import pub.doric.shader.list.ListNode;
 import pub.doric.shader.RootNode;
 import pub.doric.shader.StackNode;
 import pub.doric.shader.TextNode;
@@ -66,6 +68,8 @@ public class DoricRegistry {
         this.registerViewNode(StackNode.class);
         this.registerViewNode(VLayoutNode.class);
         this.registerViewNode(HLayoutNode.class);
+        this.registerViewNode(ListNode.class);
+        this.registerViewNode(ListItemNode.class);
         initRegistry(this);
     }
 

Android/doric/src/main/java/pub/doric/async/SettableFuture.java

@@ -64,6 +64,15 @@ public class SettableFuture<T> {
         return mResult;
     }
 
+    public T get() {
+        try {
+            mReadyLatch.await();
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+        return mResult;
+    }
+
     public static class TimeoutException extends RuntimeException {
 
         public TimeoutException() {

Android/doric/src/main/java/pub/doric/engine/DoricJSEngine.java

@@ -197,7 +197,7 @@ public class DoricJSEngine implements Handler.Callback, DoricTimerExtension.Time
             values.add(DoricUtils.toJavaValue(arg));
         }
         return mDoricJSE.invokeMethod(DoricConstant.GLOBAL_DORIC, method,
-                values.toArray(new JavaValue[values.size()]), true);
+                values.toArray(new JavaValue[values.size()]), false);
     }
 
     @Override

Android/doric/src/main/java/pub/doric/engine/remote/RemoteJSExecutor.java

@@ -1,15 +1,14 @@
 package pub.doric.engine.remote;
 
 import com.github.pengfeizhou.jscore.JSDecoder;
+import com.github.pengfeizhou.jscore.JSONBuilder;
 import com.github.pengfeizhou.jscore.JavaFunction;
 import com.github.pengfeizhou.jscore.JavaValue;
-import com.google.gson.JsonArray;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonPrimitive;
 
 import org.greenrobot.eventbus.EventBus;
 import org.jetbrains.annotations.NotNull;
+import org.json.JSONArray;
+import org.json.JSONException;
 import org.json.JSONObject;
 
 import java.io.EOFException;
@@ -25,14 +24,10 @@ import okhttp3.Response;
 import okhttp3.WebSocket;
 import okhttp3.WebSocketListener;
 import pub.doric.dev.event.QuitDebugEvent;
-import pub.doric.utils.DoricUtils;
 
 public class RemoteJSExecutor {
-
     private final WebSocket webSocket;
-
     private final Map<String, JavaFunction> globalFunctions = new HashMap<>();
-
     private JSDecoder temp;
 
     public RemoteJSExecutor() {
@@ -41,7 +36,7 @@ public class RemoteJSExecutor {
                 .readTimeout(10, TimeUnit.SECONDS)
                 .writeTimeout(10, TimeUnit.SECONDS)
                 .build();
-        final Request request = new Request.Builder().url("ws://192.168.25.175:2080").build();
+        final Request request = new Request.Builder().url("ws://192.168.24.79:2080").build();
 
         final Thread current = Thread.currentThread();
         webSocket = okHttpClient.newWebSocket(request, new WebSocketListener() {
@@ -67,55 +62,28 @@ public class RemoteJSExecutor {
 
             @Override
             public void onMessage(@NotNull WebSocket webSocket, @NotNull String text) {
-                JsonElement je = DoricUtils.gson.fromJson(text, JsonElement.class);
+                try {
-
+                    JSONObject jsonObject = new JSONObject(text);
-                if (je instanceof JsonObject) {
+                    String cmd = jsonObject.optString("cmd");
-                    JsonObject jo = ((JsonObject) je);
-                    String cmd = jo.get("cmd").getAsString();
                     switch (cmd) {
                         case "injectGlobalJSFunction": {
-                            String name = jo.get("name").getAsString();
+                            String name = jsonObject.optString("name");
-                            JsonArray arguments = jo.getAsJsonArray("arguments");
+                            JSONArray arguments = jsonObject.optJSONArray("arguments");
-                            JSDecoder[] decoders = new JSDecoder[arguments.size()];
+                            assert arguments != null;
-                            for (int i = 0; i < arguments.size(); i++) {
+                            JSDecoder[] decoders = new JSDecoder[arguments.length()];
-                                if (arguments.get(i).isJsonPrimitive()) {
+                            for (int i = 0; i < arguments.length(); i++) {
-                                    JsonPrimitive jp = ((JsonPrimitive) arguments.get(i));
+                                Object o = arguments.get(i);
-                                    if (jp.isNumber()) {
+                                decoders[i] = new JSDecoder(new ValueBuilder(o).build());
-                                        ValueBuilder vb = new ValueBuilder(jp.getAsNumber());
-                                        JSDecoder decoder = new JSDecoder(vb.build());
-                                        decoders[i] = decoder;
-                                    } else if (jp.isBoolean()) {
-                                        ValueBuilder vb = new ValueBuilder(jp.getAsBoolean());
-                                        JSDecoder decoder = new JSDecoder(vb.build());
-                                        decoders[i] = decoder;
-                                    } else if (jp.isString()) {
-                                        ValueBuilder vb = new ValueBuilder(jp.getAsString());
-                                        JSDecoder decoder = new JSDecoder(vb.build());
-                                        decoders[i] = decoder;
                             }
-                                } else {
-                                    try {
-                                        ValueBuilder vb = new ValueBuilder(new JSONObject(DoricUtils.gson.toJson(arguments.get(i))));
-                                        JSDecoder decoder = new JSDecoder(vb.build());
-                                        decoders[i] = decoder;
-                                    } catch (Exception ex) {
-                                        ex.printStackTrace();
-                                    }
-
-                                }
-                            }
-
-
                             globalFunctions.get(name).exec(decoders);
                         }
 
                         break;
                         case "invokeMethod": {
                             try {
-                                Object result = jo.get("result");
+                                Object result = jsonObject.opt("result");
                                 ValueBuilder vb = new ValueBuilder(result);
-                                JSDecoder decoder = new JSDecoder(vb.build());
+                                temp = new JSDecoder(vb.build());
-                                temp = decoder;
                                 System.out.println(result);
                             } catch (Exception ex) {
                                 ex.printStackTrace();
@@ -125,6 +93,8 @@ public class RemoteJSExecutor {
                         }
                         break;
                     }
+                } catch (JSONException e) {
+                    e.printStackTrace();
                 }
             }
         });
@@ -141,33 +111,29 @@ public class RemoteJSExecutor {
 
     public void injectGlobalJSFunction(String name, JavaFunction javaFunction) {
         globalFunctions.put(name, javaFunction);
-
+        webSocket.send(new JSONBuilder().put("cmd", "injectGlobalJSFunction")
-        JsonObject jo = new JsonObject();
+                .put("name", name).toString()
-        jo.addProperty("cmd", "injectGlobalJSFunction");
+        );
-        jo.addProperty("name", name);
-        webSocket.send(DoricUtils.gson.toJson(jo));
     }
 
     public void injectGlobalJSObject(String name, JavaValue javaValue) {
     }
 
     public JSDecoder invokeMethod(String objectName, String functionName, JavaValue[] javaValues, boolean hashKey) {
-        JsonObject jo = new JsonObject();
+        JSONArray jsonArray = new JSONArray();
-        jo.addProperty("cmd", "invokeMethod");
-        jo.addProperty("objectName", objectName);
-        jo.addProperty("functionName", functionName);
-
-        JsonArray ja = new JsonArray();
         for (JavaValue javaValue : javaValues) {
-            JsonObject argument = new JsonObject();
+            jsonArray.put(new JSONBuilder()
-            argument.addProperty("type", javaValue.getType());
+                    .put("type", javaValue.getType())
-            argument.addProperty("value", javaValue.getValue());
+                    .put("value", javaValue.getValue())
-            ja.add(argument);
+                    .toJSONObject());
         }
-        jo.add("javaValues", ja);
+        webSocket.send(new JSONBuilder()
-
+                .put("cmd", "invokeMethod")
-        jo.addProperty("hashKey", hashKey);
+                .put("objectName", objectName)
-        webSocket.send(DoricUtils.gson.toJson(jo));
+                .put("functionName", functionName)
+                .put("javaValues", jsonArray)
+                .put("hashKey", hashKey)
+                .toString());
 
         LockSupport.park(Thread.currentThread());
         return temp;

Android/doric/src/main/java/pub/doric/plugin/ShaderPlugin.java

@@ -16,6 +16,7 @@
 package pub.doric.plugin;
 
 import pub.doric.DoricContext;
+import pub.doric.async.AsyncResult;
 import pub.doric.extension.bridge.DoricMethod;
 import pub.doric.extension.bridge.DoricPlugin;
 import pub.doric.utils.DoricLog;
@@ -49,7 +50,23 @@ public class ShaderPlugin extends DoricJavaPlugin {
                     rootNode.render(jsObject.getProperty("props").asObject());
                     return null;
                 }
-            }, ThreadMode.UI);
+            }, ThreadMode.UI).setCallback(new AsyncResult.Callback<Object>() {
+                @Override
+                public void onResult(Object result) {
+
+                }
+
+                @Override
+                public void onError(Throwable t) {
+                    t.printStackTrace();
+                    DoricLog.e("Shader.render:error%s", t.getLocalizedMessage());
+                }
+
+                @Override
+                public void onFinish() {
+
+                }
+            });
         } catch (Exception e) {
             e.printStackTrace();
             DoricLog.e("Shader.render:error%s", e.getLocalizedMessage());

Android/doric/src/main/java/pub/doric/shader/GroupNode.java

@@ -15,160 +15,141 @@
  */
 package pub.doric.shader;
 
-import android.util.SparseArray;
 import android.view.ViewGroup;
 
 import pub.doric.DoricContext;
-import pub.doric.utils.DoricUtils;
 
 import com.github.pengfeizhou.jscore.JSArray;
 import com.github.pengfeizhou.jscore.JSObject;
 import com.github.pengfeizhou.jscore.JSValue;
 
 import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
 
 /**
  * @Description: com.github.penfeizhou.doric.widget
  * @Author: pengfei.zhou
  * @CreateDate: 2019-07-20
  */
-public abstract class GroupNode<F extends ViewGroup> extends ViewNode<F> {
+public abstract class GroupNode<F extends ViewGroup> extends SuperNode<F> {
-    private Map<String, ViewNode> mChildrenNode = new HashMap<>();
+    private ArrayList<ViewNode> mChildNodes = new ArrayList<>();
-    private SparseArray<ViewNode> mIndexInfo = new SparseArray<>();
+    private ArrayList<String> mChildViewIds = new ArrayList<>();
+
+    protected boolean mReusable = false;
 
     public GroupNode(DoricContext doricContext) {
         super(doricContext);
     }
 
     @Override
-    protected void blend(F view, ViewGroup.LayoutParams layoutParams, String name, JSValue prop) {
+    protected void blend(F view, String name, JSValue prop) {
-        super.blend(view, layoutParams, name, prop);
+        if ("children".equals(name)) {
-        switch (name) {
+            JSArray ids = prop.asArray();
-            case "children":
+            mChildViewIds.clear();
-                JSArray jsArray = prop.asArray();
+            for (int i = 0; i < ids.size(); i++) {
-                int i;
+                mChildViewIds.add(ids.get(i).asString().value());
-                List<ViewNode> tobeRemoved = new ArrayList<>();
-                for (i = 0; i < jsArray.size(); i++) {
-                    JSValue jsValue = jsArray.get(i);
-                    if (!jsValue.isObject()) {
-                        continue;
             }
-                    JSObject childObj = jsValue.asObject();
-                    String type = childObj.getProperty("type").asString().value();
-                    String id = childObj.getProperty("id").asString().value();
-                    ViewNode child = mChildrenNode.get(id);
-                    if (child == null) {
-                        child = ViewNode.create(getDoricContext(), type);
-                        child.index = i;
-                        child.mParent = this;
-                        child.mId = id;
-                        mChildrenNode.put(id, child);
         } else {
-                        if (i != child.index) {
+            super.blend(view, name, prop);
-                            mIndexInfo.remove(i);
-                            child.index = i;
-                            mView.removeView(child.getView());
         }
-                        tobeRemoved.remove(child);
     }
 
-                    ViewNode node = mIndexInfo.get(i);
+    @Override
-
+    public void blend(JSObject jsObject) {
-                    if (node != null && node != child) {
+        super.blend(jsObject);
-                        mView.removeViewAt(i);
+        configChildNode();
-                        mIndexInfo.remove(i);
-                        tobeRemoved.add(node);
     }
 
-                    ViewGroup.LayoutParams params = child.getLayoutParams();
+    private void configChildNode() {
-                    if (params == null) {
+        for (int idx = 0; idx < mChildViewIds.size(); idx++) {
-                        params = generateDefaultLayoutParams();
+            String id = mChildViewIds.get(idx);
+            JSObject model = getSubModel(id);
+            String type = model.getProperty("type").asString().value();
+            if (idx < mChildNodes.size()) {
+                ViewNode oldNode = mChildNodes.get(idx);
+                if (id.equals(oldNode.getId())) {
+                    //The same,skip
+                } else {
+                    if (mReusable) {
+                        if (oldNode.getType().equals(type)) {
+                            //Same type,can be reused
+                            oldNode.setId(id);
+                            oldNode.blend(model.getProperty("props").asObject());
+                        } else {
+                            //Replace this view
+                            mChildNodes.remove(idx);
+                            mView.removeView(oldNode.getDoricLayer());
+                            ViewNode newNode = ViewNode.create(getDoricContext(), type);
+                            newNode.setId(id);
+                            if (newNode instanceof GroupNode) {
+                                ((GroupNode) newNode).mReusable = this.mReusable;
                             }
-                    child.blend(childObj.getProperty("props").asObject(), params);
+                            newNode.init(this);
-                    if (mIndexInfo.get(i) == null) {
+                            newNode.blend(model.getProperty("props").asObject());
-                        mView.addView(child.getView(), i, child.getLayoutParams());
+                            mChildNodes.add(idx, newNode);
-                        mIndexInfo.put(i, child);
+                            mView.addView(newNode.getDoricLayer(), idx, newNode.getLayoutParams());
                         }
-                }
+                    } else {
-                int count = mView.getChildCount();
+                        //Find in remain nodes
-                while (i < count) {
+                        int position = -1;
-                    ViewNode node = mIndexInfo.get(i);
+                        for (int start = idx + 1; start < mChildNodes.size(); start++) {
-                    if (node != null) {
+                            ViewNode node = mChildNodes.get(start);
-                        mChildrenNode.remove(node.getId());
+                            if (id.equals(node.getId())) {
-                        mIndexInfo.remove(i);
+                                //Found
-                        tobeRemoved.remove(node);
+                                position = start;
-                        mView.removeView(node.getView());
-                    }
-                    i++;
-                }
-
-                for (ViewNode node : tobeRemoved) {
-                    mChildrenNode.remove(node.getId());
-                }
-                break;
-            default:
-                super.blend(view, layoutParams, name, prop);
                                 break;
                             }
                         }
+                        if (position >= 0) {
+                            //Found swap idx,position
+                            ViewNode reused = mChildNodes.remove(position);
+                            ViewNode abandoned = mChildNodes.remove(idx);
+                            mChildNodes.set(idx, reused);
+                            mChildNodes.set(position, abandoned);
+                            //View swap index
+                            mView.removeView(reused.getDoricLayer());
+                            mView.addView(reused.getDoricLayer(), idx);
+                            mView.removeView(abandoned.getDoricLayer());
+                            mView.addView(abandoned.getDoricLayer(), position);
+                        } else {
+                            //Not found,insert
+                            ViewNode newNode = ViewNode.create(getDoricContext(), type);
+                            newNode.setId(id);
+                            newNode.init(this);
+                            newNode.blend(model.getProperty("props").asObject());
 
-    protected ViewGroup.LayoutParams generateDefaultLayoutParams() {
+                            mChildNodes.add(idx, newNode);
-        return new ViewGroup.LayoutParams(0, 0);
+                            mView.addView(newNode.getDoricLayer(), idx, newNode.getLayoutParams());
-    }
-
-    protected void blendChild(ViewNode viewNode, JSObject jsObject) {
-
-
-        JSValue jsValue = jsObject.getProperty("margin");
-        JSValue widthSpec = jsObject.getProperty("widthSpec");
-        JSValue heightSpec = jsObject.getProperty("widthSpec");
-
-        ViewGroup.LayoutParams layoutParams = viewNode.getLayoutParams();
-        if (widthSpec.isNumber()) {
-            switch (widthSpec.asNumber().toInt()) {
-                case 1:
-                    layoutParams.width = ViewGroup.LayoutParams.WRAP_CONTENT;
-                    break;
-                case 2:
-                    layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
-                    break;
-                default:
-                    break;
-
                         }
                     }
-        if (heightSpec.isNumber()) {
+                }
-            switch (heightSpec.asNumber().toInt()) {
+            } else {
-                case 1:
+                //Insert
-                    layoutParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
+                ViewNode newNode = ViewNode.create(getDoricContext(), type);
-                    break;
+                newNode.setId(id);
-                case 2:
+                if (newNode instanceof GroupNode) {
-                    layoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT;
+                    ((GroupNode) newNode).mReusable = this.mReusable;
-                    break;
+                }
-                default:
+                newNode.init(this);
+                newNode.blend(model.getProperty("props").asObject());
+                mChildNodes.add(newNode);
+                mView.addView(newNode.getDoricLayer(), idx, newNode.getLayoutParams());
+            }
+        }
+        int size = mChildNodes.size();
+        for (int idx = mChildViewIds.size(); idx < size; idx++) {
+            ViewNode viewNode = mChildNodes.remove(mChildViewIds.size());
+            mView.removeView(viewNode.getDoricLayer());
+        }
+    }
+
+    @Override
+    protected void blendSubNode(JSObject subProp) {
+        String subNodeId = subProp.getProperty("id").asString().value();
+        for (ViewNode node : mChildNodes) {
+            if (subNodeId.equals(node.getId())) {
+                node.blend(subProp.getProperty("props").asObject());
                 break;
             }
         }
-        if (jsValue.isObject() && layoutParams instanceof ViewGroup.MarginLayoutParams) {
-            JSValue topVal = jsValue.asObject().getProperty("top");
-            if (topVal.isNumber()) {
-                ((ViewGroup.MarginLayoutParams) layoutParams).topMargin = DoricUtils.dp2px(topVal.asNumber().toFloat());
-            }
-            JSValue leftVal = jsValue.asObject().getProperty("left");
-            if (leftVal.isNumber()) {
-                ((ViewGroup.MarginLayoutParams) layoutParams).leftMargin = DoricUtils.dp2px(leftVal.asNumber().toFloat());
-            }
-            JSValue rightVal = jsValue.asObject().getProperty("right");
-            if (rightVal.isNumber()) {
-                ((ViewGroup.MarginLayoutParams) layoutParams).rightMargin = DoricUtils.dp2px(rightVal.asNumber().toFloat());
-            }
-            JSValue bottomVal = jsValue.asObject().getProperty("bottom");
-            if (bottomVal.isNumber()) {
-                ((ViewGroup.MarginLayoutParams) layoutParams).bottomMargin = DoricUtils.dp2px(bottomVal.asNumber().toFloat());
-            }
-        }
     }
 }

Android/doric/src/main/java/pub/doric/shader/HLayoutNode.java

@@ -34,8 +34,8 @@ public class HLayoutNode extends LinearNode {
     }
 
     @Override
-    protected LinearLayout build(JSObject jsObject) {
+    protected LinearLayout build() {
-        LinearLayout linearLayout = super.build(jsObject);
+        LinearLayout linearLayout = super.build();
         linearLayout.setOrientation(LinearLayout.HORIZONTAL);
         return linearLayout;
     }

Android/doric/src/main/java/pub/doric/shader/ImageNode.java

@@ -46,12 +46,12 @@ public class ImageNode extends ViewNode<ImageView> {
     }
 
     @Override
-    protected ImageView build(JSObject jsObject) {
+    protected ImageView build() {
         return new ImageView(getContext());
     }
 
     @Override
-    protected void blend(ImageView view, ViewGroup.LayoutParams layoutParams, String name, JSValue prop) {
+    protected void blend(ImageView view, String name, JSValue prop) {
         if ("imageUrl".equals(name)) {
             Glide.with(getContext()).load(prop.asString().value())
                     .listener(new RequestListener<Drawable>() {
@@ -67,7 +67,7 @@ public class ImageNode extends ViewNode<ImageView> {
                     })
                     .into(view);
         } else {
-            super.blend(view, layoutParams, name, prop);
+            super.blend(view, name, prop);
         }
     }
 }

Android/doric/src/main/java/pub/doric/shader/LinearNode.java

@@ -36,8 +36,8 @@ public class LinearNode extends GroupNode<LinearLayout> {
     }
 
     @Override
-    protected void blendChild(ViewNode viewNode, JSObject layoutConfig) {
+    protected void blendSubLayoutConfig(ViewNode viewNode, JSObject layoutConfig) {
-        super.blendChild(viewNode, layoutConfig);
+        super.blendSubLayoutConfig(viewNode, layoutConfig);
         JSValue jsValue = layoutConfig.getProperty("alignment");
         if (jsValue.isNumber()) {
             ((LinearLayout.LayoutParams) viewNode.getLayoutParams()).gravity = jsValue.asNumber().toInt();
@@ -54,12 +54,12 @@ public class LinearNode extends GroupNode<LinearLayout> {
     }
 
     @Override
-    protected LinearLayout build(JSObject jsObject) {
+    protected LinearLayout build() {
         return new LinearLayout(getContext());
     }
 
     @Override
-    protected void blend(LinearLayout view, ViewGroup.LayoutParams params, String name, JSValue prop) {
+    protected void blend(LinearLayout view, String name, JSValue prop) {
         switch (name) {
             case "space":
                 ShapeDrawable shapeDrawable;
@@ -82,7 +82,7 @@ public class LinearNode extends GroupNode<LinearLayout> {
                 view.setGravity(prop.asNumber().toInt());
                 break;
             default:
-                super.blend(view, params, name, prop);
+                super.blend(view, name, prop);
                 break;
         }
     }

Android/doric/src/main/java/pub/doric/shader/RootNode.java

@@ -36,12 +36,17 @@ public class RootNode extends StackNode {
     }
 
     @Override
-    public View getView() {
+    public View getDoricLayer() {
         return mView;
     }
 
     public void setRootView(FrameLayout rootView) {
         this.mView = rootView;
+        mLayoutParams = rootView.getLayoutParams();
+        if (mLayoutParams == null) {
+            mLayoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+            rootView.setLayoutParams(mLayoutParams);
+        }
     }
 
     @Override
@@ -50,6 +55,6 @@ public class RootNode extends StackNode {
     }
 
     public void render(JSObject props) {
-        blend(props, getLayoutParams());
+        blend(props);
     }
 }

Android/doric/src/main/java/pub/doric/shader/StackNode.java

@@ -36,8 +36,8 @@ public class StackNode extends GroupNode<FrameLayout> {
     }
 
     @Override
-    protected void blendChild(ViewNode viewNode, JSObject jsObject) {
+    protected void blendSubLayoutConfig(ViewNode viewNode, JSObject jsObject) {
-        super.blendChild(viewNode, jsObject);
+        super.blendSubLayoutConfig(viewNode, jsObject);
         JSValue jsValue = jsObject.getProperty("alignment");
         if (jsValue.isNumber()) {
             ((FrameLayout.LayoutParams) viewNode.getLayoutParams()).gravity = jsValue.asNumber().toInt();
@@ -45,18 +45,18 @@ public class StackNode extends GroupNode<FrameLayout> {
     }
 
     @Override
-    protected FrameLayout build(JSObject jsObject) {
+    protected FrameLayout build() {
         return new FrameLayout(getContext());
     }
 
     @Override
-    protected void blend(FrameLayout view, ViewGroup.LayoutParams layoutParams, String name, JSValue prop) {
+    protected void blend(FrameLayout view, String name, JSValue prop) {
         switch (name) {
             case "gravity":
                 view.setForegroundGravity(prop.asNumber().toInt());
                 break;
             default:
-                super.blend(view, layoutParams, name, prop);
+                super.blend(view, name, prop);
         }
     }
 

Android/doric/src/main/java/pub/doric/shader/SuperNode.java

@@ -0,0 +1,148 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package pub.doric.shader;
+
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.github.pengfeizhou.jscore.JSArray;
+import com.github.pengfeizhou.jscore.JSObject;
+import com.github.pengfeizhou.jscore.JSValue;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import pub.doric.DoricContext;
+import pub.doric.utils.DoricUtils;
+
+/**
+ * @Description: pub.doric.shader
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-11-13
+ */
+public abstract class SuperNode<V extends View> extends ViewNode<V> {
+    private Map<String, JSObject> subNodes = new HashMap<>();
+
+    public SuperNode(DoricContext doricContext) {
+        super(doricContext);
+    }
+
+    protected ViewGroup.LayoutParams generateDefaultLayoutParams() {
+        return new ViewGroup.LayoutParams(0, 0);
+    }
+
+    @Override
+    protected void blend(V view, String name, JSValue prop) {
+        if (name.equals("subviews")) {
+            if (prop.isArray()) {
+                JSArray subviews = prop.asArray();
+                for (int i = 0; i < subviews.size(); i++) {
+                    JSObject subNode = subviews.get(i).asObject();
+                    mixinSubNode(subNode);
+                    blendSubNode(subNode);
+                }
+            }
+        } else {
+            super.blend(view, name, prop);
+        }
+    }
+
+    private void mixinSubNode(JSObject subNode) {
+        String id = subNode.getProperty("id").asString().value();
+        JSObject targetNode = subNodes.get(id);
+        if (targetNode == null) {
+            subNodes.put(id, subNode);
+        } else {
+            mixin(subNode, targetNode);
+        }
+    }
+
+    public JSObject getSubModel(String id) {
+        return subNodes.get(id);
+    }
+
+    public void setSubModel(String id, JSObject model) {
+        subNodes.put(id, model);
+    }
+
+    public void clearSubModel() {
+        subNodes.clear();
+    }
+
+    protected abstract void blendSubNode(JSObject subProperties);
+
+    protected void blendSubLayoutConfig(ViewNode viewNode, JSObject jsObject) {
+        JSValue margin = jsObject.getProperty("margin");
+        JSValue widthSpec = jsObject.getProperty("widthSpec");
+        JSValue heightSpec = jsObject.getProperty("heightSpec");
+        ViewGroup.LayoutParams layoutParams = viewNode.getLayoutParams();
+        if (widthSpec.isNumber()) {
+            switch (widthSpec.asNumber().toInt()) {
+                case 1:
+                    layoutParams.width = ViewGroup.LayoutParams.WRAP_CONTENT;
+                    break;
+                case 2:
+                    layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
+                    break;
+                default:
+                    break;
+            }
+        }
+        if (heightSpec.isNumber()) {
+            switch (heightSpec.asNumber().toInt()) {
+                case 1:
+                    layoutParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
+                    break;
+                case 2:
+                    layoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT;
+                    break;
+                default:
+                    break;
+            }
+        }
+        if (margin.isObject() && layoutParams instanceof ViewGroup.MarginLayoutParams) {
+            JSValue topVal = margin.asObject().getProperty("top");
+            if (topVal.isNumber()) {
+                ((ViewGroup.MarginLayoutParams) layoutParams).topMargin = DoricUtils.dp2px(topVal.asNumber().toFloat());
+            }
+            JSValue leftVal = margin.asObject().getProperty("left");
+            if (leftVal.isNumber()) {
+                ((ViewGroup.MarginLayoutParams) layoutParams).leftMargin = DoricUtils.dp2px(leftVal.asNumber().toFloat());
+            }
+            JSValue rightVal = margin.asObject().getProperty("right");
+            if (rightVal.isNumber()) {
+                ((ViewGroup.MarginLayoutParams) layoutParams).rightMargin = DoricUtils.dp2px(rightVal.asNumber().toFloat());
+            }
+            JSValue bottomVal = margin.asObject().getProperty("bottom");
+            if (bottomVal.isNumber()) {
+                ((ViewGroup.MarginLayoutParams) layoutParams).bottomMargin = DoricUtils.dp2px(bottomVal.asNumber().toFloat());
+            }
+        }
+    }
+
+    private void mixin(JSObject src, JSObject target) {
+        JSObject srcProps = src.getProperty("props").asObject();
+        JSObject targetProps = target.getProperty("props").asObject();
+        for (String key : srcProps.propertySet()) {
+            JSValue jsValue = srcProps.getProperty(key);
+            if ("subviews".equals(key) && jsValue.isArray()) {
+                continue;
+            }
+            targetProps.asObject().setProperty(key, jsValue);
+        }
+    }
+
+}

Android/doric/src/main/java/pub/doric/shader/TextNode.java

@@ -16,13 +16,11 @@
 package pub.doric.shader;
 
 import android.util.TypedValue;
-import android.view.ViewGroup;
 import android.widget.TextView;
 
 import pub.doric.DoricContext;
 import pub.doric.extension.bridge.DoricPlugin;
 
-import com.github.pengfeizhou.jscore.JSObject;
 import com.github.pengfeizhou.jscore.JSValue;
 
 /**
@@ -37,12 +35,12 @@ public class TextNode extends ViewNode<TextView> {
     }
 
     @Override
-    protected TextView build(JSObject jsObject) {
+    protected TextView build() {
         return new TextView(getContext());
     }
 
     @Override
-    protected void blend(TextView view, ViewGroup.LayoutParams params, String name, JSValue prop) {
+    protected void blend(TextView view, String name, JSValue prop) {
         switch (name) {
             case "text":
                 view.setText(prop.asString().toString());
@@ -57,7 +55,7 @@ public class TextNode extends ViewNode<TextView> {
                 view.setGravity(prop.asNumber().toInt());
                 break;
             default:
-                super.blend(view, params, name, prop);
+                super.blend(view, name, prop);
                 break;
         }
     }

Android/doric/src/main/java/pub/doric/shader/VLayoutNode.java

@@ -20,8 +20,6 @@ import android.widget.LinearLayout;
 import pub.doric.DoricContext;
 import pub.doric.extension.bridge.DoricPlugin;
 
-import com.github.pengfeizhou.jscore.JSObject;
-
 /**
  * @Description: com.github.penfeizhou.doric.shader
  * @Author: pengfei.zhou
@@ -34,8 +32,8 @@ public class VLayoutNode extends LinearNode {
     }
 
     @Override
-    protected LinearLayout build(JSObject jsObject) {
+    protected LinearLayout build() {
-        LinearLayout linearLayout = super.build(jsObject);
+        LinearLayout linearLayout = super.build();
         linearLayout.setOrientation(LinearLayout.VERTICAL);
         return linearLayout;
     }

Android/doric/src/main/java/pub/doric/shader/ViewNode.java

@@ -22,11 +22,13 @@ import android.widget.FrameLayout;
 
 import pub.doric.DoricContext;
 import pub.doric.DoricRegistry;
+import pub.doric.async.AsyncResult;
 import pub.doric.utils.DoricContextHolder;
 import pub.doric.utils.DoricConstant;
 import pub.doric.utils.DoricMetaInfo;
 import pub.doric.utils.DoricUtils;
 
+import com.github.pengfeizhou.jscore.JSDecoder;
 import com.github.pengfeizhou.jscore.JSObject;
 import com.github.pengfeizhou.jscore.JSValue;
 
@@ -39,10 +41,10 @@ import java.util.LinkedList;
  */
 public abstract class ViewNode<T extends View> extends DoricContextHolder {
     protected T mView;
-    int index;
+    SuperNode mSuperNode;
-    GroupNode mParent;
     String mId;
-    private ViewGroup.LayoutParams mLayoutParams;
+    protected ViewGroup.LayoutParams mLayoutParams;
+    private String mType;
 
     public ViewNode(DoricContext doricContext) {
         super(doricContext);
@@ -50,7 +52,25 @@ public abstract class ViewNode<T extends View> extends DoricContextHolder {
 
     private DoricLayer doricLayer;
 
-    public View getView() {
+    public void init(SuperNode superNode) {
+        this.mSuperNode = superNode;
+        this.mLayoutParams = superNode.generateDefaultLayoutParams();
+        this.doricLayer = new DoricLayer(getContext());
+        this.doricLayer.setLayoutParams(mLayoutParams);
+        this.mView = build();
+        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(mLayoutParams.width, mLayoutParams.height);
+        doricLayer.addView(mView, params);
+    }
+
+    public void setId(String id) {
+        this.mId = id;
+    }
+
+    public String getType(){
+        return mType;
+    }
+
+    public View getDoricLayer() {
         return doricLayer;
     }
 
@@ -58,53 +78,46 @@ public abstract class ViewNode<T extends View> extends DoricContextHolder {
         return getDoricContext().getContext();
     }
 
-    protected abstract T build(JSObject jsObject);
+    protected abstract T build();
 
-    void blend(JSObject jsObject, ViewGroup.LayoutParams layoutParams) {
+    public void blend(JSObject jsObject) {
-        mLayoutParams = layoutParams;
+        if (jsObject != null) {
-        if (mView == null) {
-            mView = build(jsObject);
-        }
-        if (getView() == null) {
-            doricLayer = new DoricLayer(getContext());
-            FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(layoutParams.width, layoutParams.height);
-            doricLayer.addView(mView, params);
-        }
             for (String prop : jsObject.propertySet()) {
-            blend(mView, layoutParams, prop, jsObject.getProperty(prop));
+                blend(mView, prop, jsObject.getProperty(prop));
+            }
         }
         ViewGroup.LayoutParams params = mView.getLayoutParams();
         if (params != null) {
-            params.width = layoutParams.width;
+            params.width = mLayoutParams.width;
-            params.height = layoutParams.height;
+            params.height = mLayoutParams.height;
         } else {
-            params = layoutParams;
+            params = mLayoutParams;
         }
         mView.setLayoutParams(params);
     }
 
-    protected void blend(T view, ViewGroup.LayoutParams layoutParams, String name, JSValue prop) {
+    protected void blend(T view, String name, JSValue prop) {
         switch (name) {
             case "width":
-                if (layoutParams.width >= 0) {
+                if (mLayoutParams.width >= 0) {
-                    layoutParams.width = DoricUtils.dp2px(prop.asNumber().toFloat());
+                    mLayoutParams.width = DoricUtils.dp2px(prop.asNumber().toFloat());
                 }
                 break;
             case "height":
-                if (layoutParams.height >= 0) {
+                if (mLayoutParams.height >= 0) {
-                    layoutParams.height = DoricUtils.dp2px(prop.asNumber().toFloat());
+                    mLayoutParams.height = DoricUtils.dp2px(prop.asNumber().toFloat());
                 }
                 break;
             case "x":
-                if (layoutParams instanceof ViewGroup.MarginLayoutParams) {
+                if (mLayoutParams instanceof ViewGroup.MarginLayoutParams) {
                     float x = prop.asNumber().toFloat();
-                    ((ViewGroup.MarginLayoutParams) layoutParams).leftMargin = DoricUtils.dp2px(x);
+                    ((ViewGroup.MarginLayoutParams) mLayoutParams).leftMargin = DoricUtils.dp2px(x);
                 }
                 break;
             case "y":
-                if (layoutParams instanceof ViewGroup.MarginLayoutParams) {
+                if (mLayoutParams instanceof ViewGroup.MarginLayoutParams) {
                     float y = prop.asNumber().toFloat();
-                    ((ViewGroup.MarginLayoutParams) layoutParams).topMargin = DoricUtils.dp2px(y);
+                    ((ViewGroup.MarginLayoutParams) mLayoutParams).topMargin = DoricUtils.dp2px(y);
                 }
                 break;
             case "bgColor":
@@ -120,8 +133,8 @@ public abstract class ViewNode<T extends View> extends DoricContextHolder {
                 });
                 break;
             case "layoutConfig":
-                if (prop.isObject() && mParent != null) {
+                if (prop.isObject() && mSuperNode != null) {
-                    mParent.blendChild(this, prop.asObject());
+                    mSuperNode.blendSubLayoutConfig(this, prop.asObject());
                 }
                 break;
             case "border":
@@ -172,26 +185,28 @@ public abstract class ViewNode<T extends View> extends DoricContextHolder {
         ViewNode viewNode = this;
         do {
             ids.push(viewNode.mId);
-            viewNode = viewNode.mParent;
+            viewNode = viewNode.mSuperNode;
         } while (viewNode != null && !(viewNode instanceof RootNode));
 
         return ids.toArray(new String[0]);
     }
 
-    public void callJSResponse(String funcId, Object... args) {
+    public AsyncResult<JSDecoder> callJSResponse(String funcId, Object... args) {
         final Object[] nArgs = new Object[args.length + 2];
         nArgs[0] = getIdList();
         nArgs[1] = funcId;
         if (args.length > 0) {
             System.arraycopy(args, 0, nArgs, 2, args.length);
         }
-        getDoricContext().callEntity(DoricConstant.DORIC_ENTITY_RESPONSE, nArgs);
+        return getDoricContext().callEntity(DoricConstant.DORIC_ENTITY_RESPONSE, nArgs);
     }
 
     public static ViewNode create(DoricContext doricContext, String type) {
         DoricRegistry registry = doricContext.getDriver().getRegistry();
         DoricMetaInfo<ViewNode> clz = registry.acquireViewNodeInfo(type);
-        return clz.createInstance(doricContext);
+        ViewNode ret = clz.createInstance(doricContext);
+        ret.mType = type;
+        return ret;
     }
 
     public ViewGroup.LayoutParams getLayoutParams() {

Android/doric/src/main/java/pub/doric/shader/list/ListAdapter.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package pub.doric.shader.list;
+
+import android.text.TextUtils;
+import android.util.SparseArray;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.github.pengfeizhou.jscore.JSArray;
+import com.github.pengfeizhou.jscore.JSDecoder;
+import com.github.pengfeizhou.jscore.JSNull;
+import com.github.pengfeizhou.jscore.JSObject;
+import com.github.pengfeizhou.jscore.JSValue;
+
+import pub.doric.async.AsyncResult;
+import pub.doric.shader.ViewNode;
+
+/**
+ * @Description: com.github.penfeizhou.doric.widget
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-11-12
+ */
+public class ListAdapter extends RecyclerView.Adapter<ListAdapter.DoricViewHolder> {
+
+    private final ListNode listNode;
+    String renderItemFuncId;
+    int itemCount = 0;
+    int batchCount = 15;
+    SparseArray<String> itemValues = new SparseArray<>();
+
+    ListAdapter(ListNode listNode) {
+        this.listNode = listNode;
+    }
+
+    @NonNull
+    @Override
+    public DoricViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        ListItemNode node = (ListItemNode) ViewNode.create(listNode.getDoricContext(), "ListItem");
+        node.init(listNode);
+        return new DoricViewHolder(node, node.getDoricLayer());
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull DoricViewHolder holder, int position) {
+        JSValue jsValue = getItemModel(position);
+        if (jsValue.isObject()) {
+            JSObject jsObject = jsValue.asObject();
+            holder.listItemNode.setId(jsObject.getProperty("id").asString().value());
+            holder.listItemNode.blend(jsObject.getProperty("props").asObject());
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return itemCount;
+    }
+
+    @Override
+    public int getItemViewType(int position) {
+        JSValue value = getItemModel(position);
+        if (value.isObject()) {
+            if (value.asObject().getProperty("identifier").isString()) {
+                return value.asObject().getProperty("identifier").asString().value().hashCode();
+            }
+        }
+        return super.getItemViewType(position);
+    }
+
+    private JSValue getItemModel(final int position) {
+        String id = itemValues.get(position);
+        if (TextUtils.isEmpty(id)) {
+            AsyncResult<JSDecoder> asyncResult = listNode.callJSResponse(
+                    "renderBunchedItems",
+                    position,
+                    batchCount);
+            try {
+                JSDecoder jsDecoder = asyncResult.synchronous().get();
+                JSValue result = jsDecoder.decode();
+                if (result.isArray()) {
+                    JSArray jsArray = result.asArray();
+                    for (int i = 0; i < jsArray.size(); i++) {
+                        JSObject itemModel = jsArray.get(i).asObject();
+                        String itemId = itemModel.getProperty("id").asString().value();
+                        itemValues.put(i + position, itemId);
+                        listNode.setSubModel(itemId, itemModel);
+                    }
+                    return listNode.getSubModel(itemValues.get(position));
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+            return new JSNull();
+        } else {
+            JSObject childModel = listNode.getSubModel(id);
+            if (childModel == null) {
+                return new JSNull();
+            } else {
+                return childModel;
+            }
+        }
+    }
+
+
+    void blendSubNode(JSObject subProperties) {
+        for (int i = 0; i < itemValues.size(); i++) {
+            if (subProperties.getProperty("id").asString().value().equals(itemValues.valueAt(i))) {
+                notifyItemChanged(i);
+            }
+        }
+    }
+
+    static class DoricViewHolder extends RecyclerView.ViewHolder {
+        ListItemNode listItemNode;
+
+        DoricViewHolder(ListItemNode node, @NonNull View itemView) {
+            super(itemView);
+            listItemNode = node;
+        }
+    }
+}

Android/doric/src/main/java/pub/doric/shader/list/ListItemNode.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package pub.doric.shader.list;
+
+import android.widget.FrameLayout;
+
+import com.github.pengfeizhou.jscore.JSValue;
+
+import pub.doric.DoricContext;
+import pub.doric.extension.bridge.DoricPlugin;
+import pub.doric.shader.StackNode;
+
+/**
+ * @Description: com.github.penfeizhou.doric.widget
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-11-12
+ */
+@DoricPlugin(name = "ListItem")
+public class ListItemNode extends StackNode {
+    public String identifier = "";
+
+    public ListItemNode(DoricContext doricContext) {
+        super(doricContext);
+        this.mReusable = true;
+    }
+
+    @Override
+    protected void blend(FrameLayout view, String name, JSValue prop) {
+        if ("identifier".equals(name)) {
+            this.identifier = prop.asString().value();
+        } else {
+            super.blend(view, name, prop);
+        }
+    }
+}

Android/doric/src/main/java/pub/doric/shader/list/ListNode.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package pub.doric.shader.list;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.github.pengfeizhou.jscore.JSObject;
+import com.github.pengfeizhou.jscore.JSValue;
+
+import pub.doric.DoricContext;
+import pub.doric.extension.bridge.DoricPlugin;
+import pub.doric.shader.SuperNode;
+import pub.doric.shader.ViewNode;
+
+/**
+ * @Description: com.github.penfeizhou.doric.widget
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-11-12
+ */
+@DoricPlugin(name = "List")
+public class ListNode extends SuperNode<RecyclerView> {
+    private final ListAdapter listAdapter;
+
+    public ListNode(DoricContext doricContext) {
+        super(doricContext);
+        this.listAdapter = new ListAdapter(this);
+    }
+
+    @Override
+    protected void blendSubNode(JSObject subProperties) {
+        listAdapter.blendSubNode(subProperties);
+    }
+
+    @Override
+    protected RecyclerView build() {
+        RecyclerView recyclerView = new RecyclerView(getContext());
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+        recyclerView.setAdapter(this.listAdapter);
+        return recyclerView;
+    }
+
+    @Override
+    public void blend(JSObject jsObject) {
+        super.blend(jsObject);
+        if (mView != null) {
+            mView.post(new Runnable() {
+                @Override
+                public void run() {
+                    listAdapter.notifyDataSetChanged();
+                }
+            });
+        }
+    }
+
+    @Override
+    protected void blend(RecyclerView view, String name, JSValue prop) {
+        switch (name) {
+            case "itemCount":
+                this.listAdapter.itemCount = prop.asNumber().toInt();
+                break;
+            case "renderItem":
+                this.listAdapter.renderItemFuncId = prop.asString().value();
+                // If reset renderItem,should reset native cache.
+                this.listAdapter.itemValues.clear();
+                clearSubModel();
+                break;
+            case "batchCount":
+                this.listAdapter.batchCount = 15;
+                break;
+            default:
+                super.blend(view, name, prop);
+                break;
+        }
+    }
+
+    @Override
+    protected void blendSubLayoutConfig(ViewNode viewNode, JSObject jsObject) {
+        super.blendSubLayoutConfig(viewNode, jsObject);
+    }
+}

Android/gradle.properties

@@ -14,4 +14,9 @@ org.gradle.jvmargs=-Xmx1536m
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 
+# To re-enable the build cache, either delete the following
+# line or set the property to 'true'.
+android.enableBuildCache=false
+
+
 

demo/index.ts

@@ -1,4 +1,5 @@
 export default [
     'src/Counter',
     'src/Snake',
+    'src/ListDemo',
 ]

demo/src/Counter.ts

@@ -13,7 +13,9 @@ class CounterView extends ViewHolder<CountModel> {
             text({
                 textSize: 40,
                 layoutConfig: {
-                    alignment: new Gravity().center()
+                    alignment: new Gravity().center(),
+                    widthSpec: LayoutSpec.WRAP_CONTENT,
+                    heightSpec: LayoutSpec.WRAP_CONTENT,
                 },
             }).also(it => { this.number = it }),
             text({
@@ -25,7 +27,9 @@ class CounterView extends ViewHolder<CountModel> {
                 },
                 corners: 5,
                 layoutConfig: {
-                    alignment: new Gravity().center()
+                    alignment: new Gravity().center(),
+                    widthSpec: LayoutSpec.WRAP_CONTENT,
+                    heightSpec: LayoutSpec.WRAP_CONTENT,
                 },
                 shadow: {
                     color: Color.parse("#00ff00"),

demo/src/ListDemo.ts

@@ -0,0 +1,71 @@
+import { Group, Panel, List, text, gravity, Color, Stack, LayoutSpec, list, NativeCall, listItem, log, vlayout } from "doric";
+const colors = [
+    "#f0932b",
+    "#eb4d4b",
+    "#6ab04c",
+    "#e056fd",
+    "#686de0",
+    "#30336b",
+]
+@Entry
+class ListPanel extends Panel {
+    build(rootView: Group): void {
+        rootView.addChild(vlayout([
+            text({
+                text: "ListDemo",
+                layoutConfig: {
+                    widthSpec: LayoutSpec.AT_MOST,
+                    heightSpec: LayoutSpec.EXACTLY,
+                },
+                textSize: 30,
+                textColor: Color.parse("#535c68"),
+                bgColor: Color.parse("#dff9fb"),
+                textAlignment: gravity().center(),
+                height: 50,
+            }),
+            list({
+                itemCount: 1000,
+                renderItem: (idx: number) => {
+                    return listItem(text({
+                        layoutConfig: {
+                            widthSpec: LayoutSpec.AT_MOST,
+                            heightSpec: LayoutSpec.WRAP_CONTENT,
+                            margin: {
+                                left: 10,
+                                right: 50,
+                                top: 50,
+                                bottom: 10,
+                            },
+                        },
+                        text: `Cell At Line ${idx}`,
+                        textAlignment: gravity().center(),
+                        textColor: Color.parse("#ffffff"),
+                        textSize: 20,
+                    })).also(it => {
+                        it.gravity = gravity().center()
+                        it.bgColor = Color.parse(colors[idx % colors.length])
+                        it.layoutConfig = {
+                            widthSpec: LayoutSpec.AT_MOST,
+                            heightSpec: LayoutSpec.EXACTLY,
+                        }
+                        it.height = 100
+                        it.onClick = () => {
+                            log(`Click item at ${idx}`)
+                            it.bgColor = Color.parse('#000000')
+                            log(`bgcolor is ${Color.parse('#000000').toModel()}`)
+                        }
+                    })
+                },
+                layoutConfig: {
+                    widthSpec: LayoutSpec.AT_MOST,
+                    heightSpec: LayoutSpec.AT_MOST,
+                },
+            }),
+        ]).also(it => {
+            it.layoutConfig = {
+                widthSpec: LayoutSpec.AT_MOST,
+                heightSpec: LayoutSpec.AT_MOST,
+            }
+        }))
+    }
+}

iOS/Example/Example.xcodeproj/project.pbxproj

@@ -20,6 +20,7 @@
 		E2334AFE22E9D2070098A085 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = E2334AFD22E9D2070098A085 /* main.m */; };
 		E2334B0822E9D2070098A085 /* ExampleTests.m in Sources */ = {isa = PBXBuildFile; fileRef = E2334B0722E9D2070098A085 /* ExampleTests.m */; };
 		E2334B1322E9D2070098A085 /* ExampleUITests.m in Sources */ = {isa = PBXBuildFile; fileRef = E2334B1222E9D2070098A085 /* ExampleUITests.m */; };
+		E2BF7BF7237E8E9F001B0EDC /* ListDemo.js in Resources */ = {isa = PBXBuildFile; fileRef = E2BF7BF6237E8E9F001B0EDC /* ListDemo.js */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -67,6 +68,7 @@
 		E2334B0E22E9D2070098A085 /* ExampleUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = ExampleUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		E2334B1222E9D2070098A085 /* ExampleUITests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ExampleUITests.m; sourceTree = "<group>"; };
 		E2334B1422E9D2070098A085 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		E2BF7BF6237E8E9F001B0EDC /* ListDemo.js */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.javascript; path = ListDemo.js; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -123,6 +125,7 @@
 		E21DC9D12302865E00660C5C /* src */ = {
 			isa = PBXGroup;
 			children = (
+				E2BF7BF6237E8E9F001B0EDC /* ListDemo.js */,
 				E21DC9D22302865E00660C5C /* Snake.js */,
 				E21DC9D32302865E00660C5C /* Counter.js */,
 			);
@@ -295,6 +298,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				E2BF7BF7237E8E9F001B0EDC /* ListDemo.js in Resources */,
 				E21DC9D42302870000660C5C /* Snake.js in Resources */,
 				E21DC9D52302870000660C5C /* Counter.js in Resources */,
 				E2334AFB22E9D2070098A085 /* LaunchScreen.storyboard in Resources */,

iOS/Example/Example/ViewController.m

@@ -26,11 +26,11 @@ @implementation ViewController
 - (void)viewDidLoad {
     [super viewDidLoad];
 
-    NSString *path = [[NSBundle bundleForClass:[self class]] pathForResource:@"Snake" ofType:@"js"];
+    NSString *path = [[NSBundle bundleForClass:[self class]] pathForResource:@"ListDemo" ofType:@"js"];
     NSString *jsContent = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
     self.doricContext = [[DoricContext alloc] initWithScript:jsContent source:@"test.js"];
     [self.doricContext.rootNode setupRootView:[[DoricStackView new] also:^(DoricStackView *it) {
-        it.layoutConfig = [[DoricStackConfig alloc] initWithWidth:DoricLayoutAtMost height:DoricLayoutAtMost];
+        it.layoutConfig = [[DoricLayoutConfig alloc] initWithWidth:DoricLayoutAtMost height:DoricLayoutAtMost];
         [self.view addSubview:it];
     }]];
     [self.doricContext initContextWithWidth:self.view.width height:self.view.height];

iOS/Pod/Classes/DoricContextHolder.m

@@ -25,7 +25,7 @@
 @implementation DoricContextHolder
 
 - (instancetype)initWithContext:(DoricContext *)doricContext {
-    if (self = [super init]) {
+    if (self = [self init]) {
         _doricContext = doricContext;
     }
     return self;

iOS/Pod/Classes/DoricRegistry.m

@@ -28,6 +28,8 @@
 #import "DoricHLayoutNode.h"
 #import "DoricTextNode.h"
 #import "DoricImageNode.h"
+#import "DoricListNode.h"
+#import "DoricListItemNode.h"
 
 @interface DoricRegistry ()
 
@@ -58,6 +60,8 @@ - (void)innerRegister {
     [self registerViewNode:DoricHLayoutNode.class withName:@"HLayout"];
     [self registerViewNode:DoricTextNode.class withName:@"Text"];
     [self registerViewNode:DoricImageNode.class withName:@"Image"];
+    [self registerViewNode:DoricListNode.class withName:@"List"];
+    [self registerViewNode:DoricListItemNode.class withName:@"ListItem"];
 }
 
 - (void)registerJSBundle:(NSString *)bundle withName:(NSString *)name {

iOS/Pod/Classes/Shader/DoricGroupNode.h

@@ -20,19 +20,12 @@
 //  Created by pengfei.zhou on 2019/7/30.
 //
 
-#import "DoricViewNode.h"
+#import "DoricSuperNode.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface DoricGroupNode <V:UIView *, P:DoricLayoutConfig *> : DoricViewNode<V>
+@interface DoricGroupNode <V:UIView *> : DoricSuperNode<V>
-
+@property(nonatomic, assign) BOOL reusable;
-@property(nonatomic, strong) NSMutableDictionary *children;
-@property(nonatomic, strong) NSMutableArray *indexedChildren;
-
-
-- (void)blendChild:(DoricViewNode *)child layoutConfig:(NSDictionary *)layoutConfig;
-
-- (P)generateDefaultLayoutParams;
 @end
 
 NS_ASSUME_NONNULL_END

iOS/Pod/Classes/Shader/DoricGroupNode.m

@@ -23,124 +23,140 @@
 #import <Doric/DoricExtensions.h>
 #import "DoricGroupNode.h"
 
+@interface DoricGroupNode ()
+@property(nonatomic, copy) NSArray<DoricViewNode *> *childNodes;
+@property(nonatomic, copy) NSArray <NSString *> *childViewIds;
+@end
+
 @implementation DoricGroupNode
 
 - (instancetype)initWithContext:(DoricContext *)doricContext {
     if (self = [super initWithContext:doricContext]) {
-        _children = [[NSMutableDictionary alloc] init];
+        _childNodes = @[];
-        _indexedChildren = [[NSMutableArray alloc] init];
+        _childViewIds = @[];
+        _reusable = NO;
     }
     return self;
 }
 
-- (UIView *)build:(NSDictionary *)props {
+- (UIView *)build {
     UIView *ret = [[UIView alloc] init];
     ret.clipsToBounds = YES;
     return ret;
 }
 
 - (void)blendView:(UIView *)view forPropName:(NSString *)name propValue:(id)prop {
-    if ([name isEqualToString:@"children"]) {
+    if ([@"children" isEqualToString:name]) {
-        NSArray *array = prop;
+        self.childViewIds = prop;
-        NSInteger i;
-        NSMutableArray *tobeRemoved = [[NSMutableArray alloc] init];
-        for (i = 0; i < array.count; i++) {
-            NSDictionary *val = array[i];
-            if (!val || (NSNull *) val == [NSNull null]) {
-                continue;
-            }
-            NSString *type = val[@"type"];
-            NSString *viewId = val[@"id"];
-            DoricViewNode *node = self.children[viewId];
-            if (node == nil) {
-                node = [DoricViewNode create:self.doricContext withType:type];
-                node.index = i;
-                node.parent = self;
-                node.viewId = viewId;
-                self.children[viewId] = node;
-            } else {
-                if (i != node.index) {
-                    [self.indexedChildren removeObjectAtIndex:i];
-                    node.index = i;
-                    [node.view removeFromSuperview];
-                }
-                [tobeRemoved removeObject:node];
-            }
-            DoricViewNode *old = i >= self.indexedChildren.count ? nil : self.indexedChildren[i];
-            if (old && old != node) {
-                [old.view removeFromSuperview];
-                self.indexedChildren[i] = [NSNull null];
-                [tobeRemoved addObject:old];
-            }
-
-            DoricLayoutConfig *params = node.layoutConfig;
-            if (params == nil) {
-                params = [self generateDefaultLayoutParams];
-                node.layoutConfig = params;
-            }
-            [node blend:val[@"props"]];
-            if (self.indexedChildren.count <= i) {
-                [self.view addSubview:node.view];
-                [self.indexedChildren addObject:node];
-            } else if (self.indexedChildren[i] == [NSNull null]) {
-                self.indexedChildren[i] = node;
-                [self.view insertSubview:node.view atIndex:i];
-            }
-        }
-        NSInteger start = i;
-        while (start < self.indexedChildren.count) {
-            DoricViewNode *node = self.indexedChildren[(NSUInteger) start];
-            if (node) {
-                [self.children removeObjectForKey:node.viewId];
-                [node.view removeFromSuperview];
-                [tobeRemoved removeObject:node];
-            }
-            start++;
-        }
-        if (i < self.indexedChildren.count) {
-            [self.indexedChildren removeObjectsInRange:NSMakeRange((NSUInteger) i, self.indexedChildren.count - i)];
-        }
-
-        for (DoricViewNode *node in tobeRemoved) {
-            [self.children removeObjectForKey:node.viewId];
-        }
     } else {
         [super blendView:view forPropName:name propValue:prop];
     }
 }
 
+- (void)blend:(NSDictionary *)props {
+    [super blend:props];
+    [self configChildNodes];
+}
+
 - (DoricLayoutConfig *)generateDefaultLayoutParams {
     DoricLayoutConfig *params = [[DoricLayoutConfig alloc] init];
     return params;
 }
 
-- (void)blendChild:(DoricViewNode *)child layoutConfig:(NSDictionary *)layoutConfig {
+- (void)configChildNodes {
-    DoricLayoutConfig *params = child.layoutConfig;
+    NSMutableArray *childNodes = [self.childNodes mutableCopy];
+    for (NSUInteger idx = 0; idx < self.childViewIds.count; idx++) {
+        NSString *viewId = self.childViewIds[idx];
+        NSDictionary *model = [self subModelOf:viewId];
+        NSString *type = model[@"type"];
+        if (idx < self.childNodes.count) {
+            DoricViewNode *oldNode = childNodes[idx];
+            if ([viewId isEqualToString:oldNode.viewId]) {
+                ///Same,skip
+            } else {
+                if (self.reusable) {
+                    if ([oldNode.type isEqualToString:type]) {
+                        ///Same type,can be reused
+                        oldNode.viewId = viewId;
+                        [oldNode blend:model[@"props"]];
+                    } else {
+                        ///Replace this view
+                        [childNodes removeObjectAtIndex:idx];
+                        [oldNode.view removeFromSuperview];
+                        DoricViewNode *viewNode = [DoricViewNode create:self.doricContext withType:type];
+                        if ([viewNode isKindOfClass:[DoricGroupNode class]]) {
+                            ((DoricGroupNode *) viewNode).reusable = self.reusable;
+                        }
+                        viewNode.viewId = viewId;
+                        [viewNode initWithSuperNode:self];
+                        [viewNode blend:model[@"props"]];
+                        [childNodes insertObject:viewNode atIndex:idx];
+                        [self.view insertSubview:viewNode.view atIndex:idx];
+                    }
+                } else {
+                    ///Find in remain nodes
+                    NSInteger position = -1;
+                    for (NSUInteger start = idx + 1; start < childNodes.count; start++) {
+                        DoricViewNode *node = childNodes[start];
+                        if ([viewId isEqualToString:node.viewId]) {
+                            position = start;
+                            break;
+                        }
+                    }
+                    if (position >= 0) {
+                        ///Found ,swap idx,position
+                        DoricViewNode *reused = childNodes[(NSUInteger) position];
+                        [childNodes removeObjectAtIndex:(NSUInteger) position];
+                        [childNodes removeObjectAtIndex:idx];
+                        [childNodes insertObject:reused atIndex:idx];
+                        [childNodes insertObject:oldNode atIndex:(NSUInteger) position];
 
-    [layoutConfig[@"widthSpec"] also:^(NSNumber *it) {
+                        ///View swap index
-        if (it) {
+                        [reused.view removeFromSuperview];
-            params.widthSpec = (DoricLayoutSpec) [it integerValue];
+                        [oldNode.view removeFromSuperview];
+                        [self.view insertSubview:reused.view atIndex:idx];
+                        [self.view insertSubview:oldNode.view atIndex:position];
+                    } else {
+                        ///Not found,insert
+                        DoricViewNode *viewNode = [DoricViewNode create:self.doricContext withType:type];
+                        viewNode.viewId = viewId;
+                        [viewNode initWithSuperNode:self];
+                        [viewNode blend:model[@"props"]];
+                        [childNodes insertObject:viewNode atIndex:idx];
+                        [self.view insertSubview:viewNode.view atIndex:idx];
+                    }
+                }
+            }
+        } else {
+            /// Insert
+            DoricViewNode *viewNode = [DoricViewNode create:self.doricContext withType:type];
+            if ([viewNode isKindOfClass:[DoricGroupNode class]]) {
+                ((DoricGroupNode *) viewNode).reusable = self.reusable;
+            }
+            viewNode.viewId = viewId;
+            [viewNode initWithSuperNode:self];
+            [viewNode blend:model[@"props"]];
+            [childNodes addObject:viewNode];
+            [self.view addSubview:viewNode.view];
+        }
+    }
+
+    NSUInteger count = childNodes.count;
+    for (NSUInteger idx = self.childViewIds.count; idx < count; idx++) {
+        DoricViewNode *viewNode = childNodes.lastObject;
+        [childNodes removeLastObject];
+        [viewNode.view removeFromSuperview];
+    }
+    self.childNodes = [childNodes copy];
+}
+
+- (void)blendSubNode:(NSDictionary *)subModel {
+    NSString *viewId = subModel[@"id"];
+    [self.childNodes enumerateObjectsUsingBlock:^(DoricViewNode *obj, NSUInteger idx, BOOL *stop) {
+        if ([viewId isEqualToString:obj.viewId]) {
+            [obj blend:subModel[@"props"]];
+            *stop = YES;
         }
     }];
-
-    [layoutConfig[@"heightSpec"] also:^(NSNumber *it) {
-        if (it) {
-            params.heightSpec = (DoricLayoutSpec) [it integerValue];
 }
-    }];
-
-    if ([params isKindOfClass:DoricMarginConfig.class]) {
-        DoricMarginConfig *marginParams = (DoricMarginConfig *) params;
-        NSDictionary *margin = layoutConfig[@"margin"];
-        if (margin) {
-            marginParams.margin = DoricMarginMake(
-                    [(NSNumber *) margin[@"left"] floatValue],
-                    [(NSNumber *) margin[@"top"] floatValue],
-                    [(NSNumber *) margin[@"right"] floatValue],
-                    [(NSNumber *) margin[@"bottom"] floatValue]);
-        }
-    }
-
-}
-
 @end

iOS/Pod/Classes/Shader/DoricHLayoutNode.h

@@ -22,5 +22,5 @@
 
 #import "DoricGroupNode.h"
 
-@interface DoricHLayoutNode : DoricGroupNode<DoricHLayoutView *, DoricLinearConfig *>
+@interface DoricHLayoutNode : DoricGroupNode<DoricHLayoutView *>
 @end

iOS/Pod/Classes/Shader/DoricHLayoutNode.m

@@ -24,7 +24,7 @@
 #import "DoricUtil.h"
 
 @implementation DoricHLayoutNode
-- (DoricHLayoutView *)build:(NSDictionary *)props {
+- (DoricHLayoutView *)build {
     return [DoricHLayoutView new];
 }
 
@@ -37,29 +37,4 @@ - (void)blendView:(DoricHLayoutView *)view forPropName:(NSString *)name propValu
         [super blendView:view forPropName:name propValue:prop];
     }
 }
-
-- (void)blendChild:(DoricViewNode *)child layoutConfig:(NSDictionary *)layoutConfig {
-    [super blendChild:child layoutConfig:layoutConfig];
-    if (![child.layoutConfig isKindOfClass:DoricLinearConfig.class]) {
-        DoricLog(@"blend DoricHLayoutView child error,layout params not match");
-        return;
-    }
-    DoricLinearConfig *params = (DoricLinearConfig *) child.layoutConfig;
-    NSDictionary *margin = layoutConfig[@"margin"];
-    if (margin) {
-        params.margin = DoricMarginMake(
-                [(NSNumber *) margin[@"left"] floatValue],
-                [(NSNumber *) margin[@"top"] floatValue],
-                [(NSNumber *) margin[@"right"] floatValue],
-                [(NSNumber *) margin[@"bottom"] floatValue]);
-    }
-    NSNumber *alignment = layoutConfig[@"alignment"];
-    if (alignment) {
-        params.alignment = (DoricGravity) [alignment integerValue];
-    }
-}
-
-- (DoricLinearConfig *)generateDefaultLayoutParams {
-    return [[DoricLinearConfig alloc] init];
-}
 @end

iOS/Pod/Classes/Shader/DoricImageNode.m

@@ -25,7 +25,7 @@
 
 @implementation DoricImageNode
 
-- (UIImageView *)build:(NSDictionary *)props {
+- (UIImageView *)build {
     return [[UIImageView alloc] init];
 }
 

iOS/Pod/Classes/Shader/DoricLayouts.h

@@ -31,9 +31,9 @@ typedef struct DoricMargin DoricMargin;
 DoricMargin DoricMarginMake(CGFloat left, CGFloat top, CGFloat right, CGFloat bottom);
 
 typedef NS_ENUM(NSInteger, DoricLayoutSpec) {
-    DoricLayoutExact,
+    DoricLayoutExact = 0,
-    DoricLayoutWrapContent,
+    DoricLayoutWrapContent = 1,
-    DoricLayoutAtMost,
+    DoricLayoutAtMost = 2,
 };
 
 typedef NS_ENUM(NSInteger, DoricGravity) {
@@ -54,43 +54,31 @@ typedef NS_ENUM(NSInteger, DoricGravity) {
 @interface DoricLayoutConfig : NSObject
 @property(nonatomic, assign) DoricLayoutSpec widthSpec;
 @property(nonatomic, assign) DoricLayoutSpec heightSpec;
+@property(nonatomic) DoricMargin margin;
 @property(nonatomic, assign) DoricGravity alignment;
+@property(nonatomic, assign) NSUInteger weight;
 
 - (instancetype)init;
 
 - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height;
 
-@end
-
-@interface DoricStackConfig : DoricLayoutConfig
-@end
-
-@interface DoricMarginConfig : DoricLayoutConfig
-@property(nonatomic) DoricMargin margin;
-
 - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height margin:(DoricMargin)margin;
-@end
 
-@interface DoricLinearConfig : DoricMarginConfig
-@property(nonatomic, assign) NSUInteger weight;
 @end
 
 
-@interface DoricLayoutContainer <T :DoricLayoutConfig *> : UIView
+@interface DoricLayoutContainer : UIView
-
-- (T)configForChild:(__kindof UIView *)child;
-
-- (void)layout;
-
-- (void)requestLayout;
-@end
-
-@interface DoricStackView : DoricLayoutContainer<DoricStackConfig *>
 @property(nonatomic, assign) DoricGravity gravity;
+
+- (void)layout:(CGSize)targetSize;
+
+- (CGSize)sizeContent:(CGSize)size;
 @end
 
-@interface DoricLinearView : DoricLayoutContainer<DoricLinearConfig *>
+@interface DoricStackView : DoricLayoutContainer
-@property(nonatomic, assign) DoricGravity gravity;
+@end
+
+@interface DoricLinearView : DoricLayoutContainer
 @property(nonatomic, assign) CGFloat space;
 @end
 

iOS/Pod/Classes/Shader/DoricLayouts.m

@@ -46,107 +46,70 @@ - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)hei
     }
     return self;
 }
-@end
-
-@implementation DoricMarginConfig
-- (instancetype)init {
-    if (self = [super init]) {
-        _margin = DoricMarginMake(0, 0, 0, 0);
-    }
-    return self;
-}
 
 - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height margin:(DoricMargin)margin {
-    if (self = [super initWithWidth:width height:height]) {
+    if (self = [super init]) {
+        _widthSpec = width;
+        _heightSpec = height;
         _margin = margin;
     }
     return self;
 }
 @end
 
-@implementation DoricStackConfig
-@end
-
-@implementation DoricLinearConfig
-@end
-
 
 @interface DoricLayoutContainer ()
-@property(nonatomic, assign) BOOL waitingLayout;
+@property(nonatomic, assign) CGFloat contentWidth;
+@property(nonatomic, assign) CGFloat contentHeight;
+@property(nonatomic, assign) NSUInteger contentWeight;
 @end
 
 @implementation DoricLayoutContainer
-- (instancetype)init {
-    if (self = [super init]) {
-        _waitingLayout = NO;
-    }
-    return self;
-}
 
-- (instancetype)initWithFrame:(CGRect)frame {
+- (void)layoutSubviews {
-    if (self = [super initWithFrame:frame]) {
-        _waitingLayout = NO;
-    }
-    return self;
-}
-
-- (instancetype)initWithCoder:(NSCoder *)coder {
-    if (self = [super initWithCoder:coder]) {
-        _waitingLayout = NO;
-    }
-    return self;
-}
-
-
-- (DoricLayoutConfig *)configForChild:(UIView *)child {
-    DoricLayoutConfig *config = child.layoutConfig;
-    if (!config) {
-        config = [[DoricLayoutConfig alloc] init];
-    }
-    return config;
-}
-
-- (void)requestLayout {
-    if ([self.superview isKindOfClass:[DoricLinearView class]]) {
-        [(DoricLinearView *) self.superview requestLayout];
-        return;
-    }
-    if (self.waitingLayout) {
-        return;
-    }
-    self.waitingLayout = YES;
-    __weak typeof(self) _self = self;
-    dispatch_async(dispatch_get_main_queue(), ^{
-        __strong typeof(_self) self = _self;
-        [self sizeToFit];
-        [self layout];
-        self.waitingLayout = NO;
-    });
-}
-
-- (void)setNeedsLayout {
-    [super setNeedsLayout];
-    if (self.waitingLayout) {
-        return;
-    }
-    [self requestLayout];
-}
-
-- (BOOL)waitingLayout {
     if ([self.superview isKindOfClass:[DoricLayoutContainer class]]) {
-        return [(DoricLayoutContainer *) self.superview waitingLayout];
+        [self.superview layoutSubviews];
+    } else {
+        CGSize size = [self sizeThatFits:CGSizeMake(self.superview.width, self.superview.height)];
+        [self layout:size];
     }
-    return _waitingLayout;
 }
 
-- (void)layout {
+- (CGSize)sizeThatFits:(CGSize)size {
-    [self.subviews enumerateObjectsUsingBlock:^(__kindof UIView *child, NSUInteger idx, BOOL *stop) {
+    CGFloat width = self.width;
-        if ([child isKindOfClass:[DoricLayoutContainer class]]) {
+    CGFloat height = self.height;
-            [(DoricLayoutContainer *) child layout];
+
+    DoricLayoutConfig *config = self.layoutConfig;
+    if (!config) {
+        config = [DoricLayoutConfig new];
     }
-    }];
+    if (config.widthSpec == DoricLayoutAtMost
+            || config.widthSpec == DoricLayoutWrapContent) {
+        width = size.width - config.margin.left - config.margin.right;
+    }
+    if (config.heightSpec == DoricLayoutAtMost
+            || config.heightSpec == DoricLayoutWrapContent) {
+        height = size.height - config.margin.top - config.margin.bottom;
     }
 
+    CGSize contentSize = [self sizeContent:CGSizeMake(width, height)];
+    if (config.widthSpec == DoricLayoutWrapContent) {
+        width = contentSize.width;
+    }
+    if (config.heightSpec == DoricLayoutWrapContent) {
+        height = contentSize.height;
+    }
+    return CGSizeMake(width, height);
+}
+
+- (CGSize)sizeContent:(CGSize)size {
+    return size;
+}
+
+- (void)layout:(CGSize)targetSize {
+    self.width = targetSize.width;
+    self.height = targetSize.height;
+}
 @end
 
 
@@ -157,175 +120,223 @@ @interface DoricStackView ()
 @end
 
 @implementation DoricStackView
-- (DoricStackConfig *)configForChild:(UIView *)child {
-    DoricStackConfig *config = (DoricStackConfig *) child.layoutConfig;
-    if (!config) {
-        config = [[DoricStackConfig alloc] init];
-    }
-    return config;
-}
 
-
+- (CGSize)sizeContent:(CGSize)size {
-- (void)sizeToFit {
+    CGFloat contentWidth = 0;
-    DoricLayoutConfig *config = self.layoutConfig;
+    CGFloat contentHeight = 0;
-    self.contentWidth = 0;
-    self.contentHeight = 0;
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricStackConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+        CGSize childSize = CGSizeMake(child.width, child.height);
         if ([child isKindOfClass:[DoricLayoutContainer class]]
                 || childConfig.widthSpec == DoricLayoutWrapContent
                 || childConfig.heightSpec == DoricLayoutWrapContent) {
-            [child sizeToFit];
+            childSize = [child sizeThatFits:CGSizeMake(size.width, size.height - contentHeight)];
         }
-        self.contentWidth = MAX(self.contentWidth, child.width);
+        if (childConfig.widthSpec == DoricLayoutExact) {
-        self.contentHeight = MAX(self.contentHeight, child.height);
+            childSize.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            childSize.width = size.width;
         }
-    if (config.widthSpec == DoricLayoutWrapContent) {
+        if (childConfig.heightSpec == DoricLayoutExact) {
-        self.width = self.contentWidth;
+            childSize.height = child.height;
-    } else if (config.widthSpec == DoricLayoutAtMost) {
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
-        self.width = self.superview.width;
+            childSize.height = size.height - contentHeight;
         }
-    if (config.heightSpec == DoricLayoutWrapContent) {
-        self.height = self.contentHeight;
-    } else if (config.heightSpec == DoricLayoutAtMost) {
-        self.height = self.superview.height;
-    }
-}
-
-- (void)layout {
-    for (UIView *child in self.subviews) {
-        if (child.isHidden) {
-            continue;
-        }
-        DoricStackConfig *childConfig = [self configForChild:child];
-        DoricGravity gravity = childConfig.alignment | self.gravity;
-        if ((gravity & LEFT) == LEFT) {
-            child.left = 0;
-        } else if ((gravity & RIGHT) == RIGHT) {
-            child.right = self.width;
-        } else if ((gravity & CENTER_X) == CENTER_X) {
-            child.centerX = self.width / 2;
-        }
-        if ((gravity & TOP) == TOP) {
-            child.top = 0;
-        } else if ((gravity & BOTTOM) == BOTTOM) {
-            child.bottom = self.height;
-        } else if ((gravity & CENTER_Y) == CENTER_Y) {
-            child.centerY = self.height / 2;
-        }
-        if (childConfig.widthSpec == DoricLayoutAtMost) {
-            child.width = self.width;
-        }
-        if (childConfig.heightSpec == DoricLayoutAtMost) {
-            child.height = self.height;
-        }
-
-        if ([child isKindOfClass:[DoricLayoutContainer class]]) {
-            [(DoricLayoutContainer *) child layout];
-        }
-    }
-}
-@end
-
-@interface DoricLinearView ()
-@property(nonatomic, assign) CGFloat contentWidth;
-@property(nonatomic, assign) CGFloat contentHeight;
-@property(nonatomic, assign) NSUInteger contentWeight;
-@end
-
-@implementation DoricLinearView
-- (DoricLinearConfig *)configForChild:(UIView *)child {
-    DoricLinearConfig *config = (DoricLinearConfig *) child.layoutConfig;
-    if (!config) {
-        config = [[DoricLinearConfig alloc] init];
-    }
-    return config;
-}
-@end
-
-@implementation DoricVLayoutView
-
-- (void)sizeToFit {
-    DoricLayoutConfig *config = self.layoutConfig;
-    self.contentWidth = 0;
-    self.contentHeight = 0;
-    self.contentWeight = 0;
-    for (UIView *child in self.subviews) {
-        if (child.isHidden) {
-            continue;
-        }
-        DoricLinearConfig *childConfig = [self configForChild:child];
-        if ([child isKindOfClass:[DoricLayoutContainer class]]
-                || childConfig.widthSpec == DoricLayoutWrapContent
-                || childConfig.heightSpec == DoricLayoutWrapContent) {
-            [child sizeToFit];
-        }
-        self.contentWidth = MAX(self.contentWidth, child.width + childConfig.margin.left + childConfig.margin.right);
-        self.contentHeight += child.height + self.space + childConfig.margin.top + childConfig.margin.bottom;
-        self.contentWeight += childConfig.weight;
-    }
-    self.contentHeight -= self.space;
-    if (config.widthSpec == DoricLayoutWrapContent) {
-        self.width = self.contentWidth;
-    } else if (config.widthSpec == DoricLayoutAtMost) {
-        self.width = self.superview.width;
-    }
-    if (config.heightSpec == DoricLayoutWrapContent) {
-        self.height = self.contentHeight;
-    } else if (config.heightSpec == DoricLayoutAtMost) {
-        self.height = self.superview.height;
-    }
-    if (self.contentWeight) {
-        CGFloat remain = self.height - self.contentHeight;
-        for (UIView *child in self.subviews) {
-            if (child.isHidden) {
-                continue;
-            }
-            DoricLinearConfig *childConfig = [self configForChild:child];
         if (childConfig.weight) {
-                child.height += remain / self.contentWeight * childConfig.weight;
+            childSize.height = child.height;
         }
+        contentWidth = MAX(contentWidth, childSize.width + childConfig.margin.left + childConfig.margin.right);
+        contentHeight = MAX(contentHeight, childSize.height + childConfig.margin.top + childConfig.margin.bottom);
     }
-        self.contentHeight = self.height;
+    self.contentWidth = contentWidth;
-    }
+    self.contentHeight = contentHeight;
+    return CGSizeMake(contentWidth, contentHeight);
 }
 
-- (void)layout {
+- (void)layout:(CGSize)targetSize {
-    CGFloat yStart = 0;
-    if ((self.gravity & TOP) == TOP) {
-        yStart = 0;
-    } else if ((self.gravity & BOTTOM) == BOTTOM) {
-        yStart = self.height - self.contentHeight;
-    } else if ((self.gravity & CENTER_Y) == CENTER_Y) {
-        yStart = (self.height - self.contentHeight) / 2;
-    }
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricLinearConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+
+        CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width, targetSize.height)];
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            size.width = targetSize.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            size.height = targetSize.height;
+        }
+        child.width = size.width;
+        child.height = size.height;
+
         DoricGravity gravity = childConfig.alignment | self.gravity;
+
         if ((gravity & LEFT) == LEFT) {
             child.left = 0;
         } else if ((gravity & RIGHT) == RIGHT) {
-            child.right = self.width;
+            child.right = targetSize.width;
         } else if ((gravity & CENTER_X) == CENTER_X) {
-            child.centerX = self.width / 2;
+            child.centerX = targetSize.width / 2;
         } else {
             if (childConfig.margin.left) {
                 child.left = childConfig.margin.left;
             } else if (childConfig.margin.right) {
-                child.right = self.width - childConfig.margin.right;
+                child.right = targetSize.width - childConfig.margin.right;
             }
         }
-        if (childConfig.widthSpec == DoricLayoutAtMost) {
+
-            child.width = self.width;
+        if ((gravity & TOP) == TOP) {
+            child.top = 0;
+        } else if ((gravity & BOTTOM) == BOTTOM) {
+            child.bottom = targetSize.height;
+        } else if ((gravity & CENTER_Y) == CENTER_Y) {
+            child.centerY = targetSize.height / 2;
+        } else {
+            if (childConfig.margin.top) {
+                child.top = childConfig.margin.top;
+            } else if (childConfig.margin.bottom) {
+                child.bottom = targetSize.height - childConfig.margin.bottom;
+            }
+        }
+
+        if ([child isKindOfClass:[DoricLayoutContainer class]]) {
+            [(DoricLayoutContainer *) child layout:size];
+        }
+    }
+    self.width = targetSize.width;
+    self.height = targetSize.height;
+}
+@end
+
+@implementation DoricLinearView
+@end
+
+@implementation DoricVLayoutView
+- (CGSize)sizeContent:(CGSize)size {
+    CGFloat contentWidth = 0;
+    CGFloat contentHeight = 0;
+    NSUInteger contentWeight = 0;
+    for (UIView *child in self.subviews) {
+        if (child.isHidden) {
+            continue;
+        }
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+        CGSize childSize = CGSizeMake(child.width, child.height);
+        if ([child isKindOfClass:[DoricLayoutContainer class]]
+                || childConfig.widthSpec == DoricLayoutWrapContent
+                || childConfig.heightSpec == DoricLayoutWrapContent) {
+            childSize = [child sizeThatFits:CGSizeMake(size.width, size.height - contentHeight)];
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            childSize.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            childSize.width = size.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            childSize.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            childSize.height = size.height - contentHeight;
+        }
+        if (childConfig.weight) {
+            childSize.height = child.height;
+        }
+        contentWidth = MAX(contentWidth, childSize.width + childConfig.margin.left + childConfig.margin.right);
+        contentHeight += childSize.height + self.space + childConfig.margin.top + childConfig.margin.bottom;
+        contentWeight += childConfig.weight;
+    }
+    contentHeight -= self.space;
+    self.contentWidth = contentWidth;
+    self.contentHeight = contentHeight;
+    self.contentWeight = contentWeight;
+    if (contentWeight) {
+        contentHeight = size.height;
+    }
+    return CGSizeMake(contentWidth, contentHeight);
+}
+
+- (void)layout:(CGSize)targetSize {
+    CGFloat yStart = 0;
+    if ((self.gravity & TOP) == TOP) {
+        yStart = 0;
+    } else if ((self.gravity & BOTTOM) == BOTTOM) {
+        yStart = targetSize.height - self.contentHeight;
+    } else if ((self.gravity & CENTER_Y) == CENTER_Y) {
+        yStart = (targetSize.height - self.contentHeight) / 2;
+    }
+    CGFloat remain = targetSize.height - self.contentHeight;
+    for (UIView *child in self.subviews) {
+        if (child.isHidden) {
+            continue;
+        }
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+
+        CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width, targetSize.height - yStart)];
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            size.width = targetSize.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            size.height = targetSize.height - yStart;
+        }
+        if (childConfig.weight) {
+            size.height = child.height;
+        }
+
+        if (childConfig.weight) {
+            size.height += remain / self.contentWeight * childConfig.weight;
+        }
+        child.width = size.width;
+        child.height = size.height;
+
+        DoricGravity gravity = childConfig.alignment | self.gravity;
+
+        if ((gravity & LEFT) == LEFT) {
+            child.left = 0;
+        } else if ((gravity & RIGHT) == RIGHT) {
+            child.right = self.width;
+        } else if ((gravity & CENTER_X) == CENTER_X) {
+            child.centerX = targetSize.width / 2;
+        } else {
+            if (childConfig.margin.left) {
+                child.left = childConfig.margin.left;
+            } else if (childConfig.margin.right) {
+                child.right = targetSize.width - childConfig.margin.right;
             }
-        if (childConfig.heightSpec == DoricLayoutAtMost) {
-            child.height = self.height - yStart - childConfig.margin.top - childConfig.margin.bottom - self.space;
         }
         if (childConfig.margin.top) {
             yStart += childConfig.margin.top;
@@ -336,102 +347,124 @@ - (void)layout {
             yStart += childConfig.margin.bottom;
         }
         if ([child isKindOfClass:[DoricLayoutContainer class]]) {
-            [(DoricLayoutContainer *) child layout];
+            [(DoricLayoutContainer *) child layout:size];
         }
     }
+    self.width = targetSize.width;
+    self.height = targetSize.height;
 }
 @end
 
 @implementation DoricHLayoutView
-- (void)sizeToFit {
+
-    DoricLinearConfig *config;
+- (CGSize)sizeContent:(CGSize)size {
-    if ([self.superview isKindOfClass:[DoricLinearView class]]) {
+    CGFloat contentWidth = 0;
-        config = [(DoricLinearView *) self.superview configForChild:self];
+    CGFloat contentHeight = 0;
-    } else {
+    NSUInteger contentWeight = 0;
-        config = (DoricLinearConfig *) self.layoutConfig;
-        if (!config) {
-            config = [[DoricLinearConfig alloc] init];
-        }
-    }
-    self.contentWidth = 0;
-    self.contentHeight = 0;
-    self.contentWeight = 0;
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricLinearConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+        CGSize childSize = CGSizeMake(child.width, child.height);
         if ([child isKindOfClass:[DoricLayoutContainer class]]
                 || childConfig.widthSpec == DoricLayoutWrapContent
                 || childConfig.heightSpec == DoricLayoutWrapContent) {
-            [child sizeToFit];
+            childSize = [child sizeThatFits:CGSizeMake(size.width - contentWidth, size.height)];
         }
-        self.contentHeight = MAX(self.contentHeight, child.height + childConfig.margin.top + childConfig.margin.bottom);
+        if (childConfig.widthSpec == DoricLayoutExact) {
-        self.contentWidth += child.width + self.space + childConfig.margin.left + childConfig.margin.right;
+            childSize.width = child.width;
-        self.contentWeight += childConfig.weight;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            childSize.width = size.width - contentWidth;
         }
-    self.contentWidth -= self.space;
+        if (childConfig.heightSpec == DoricLayoutExact) {
-    if (config.widthSpec == DoricLayoutWrapContent) {
+            childSize.height = child.height;
-        self.width = self.contentWidth;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
-    } else if (config.widthSpec == DoricLayoutAtMost) {
+            childSize.height = size.height;
-        self.width = self.superview.width;
         }
-    if (config.heightSpec == DoricLayoutWrapContent) {
-        self.height = self.contentHeight;
-    } else if (config.heightSpec == DoricLayoutAtMost) {
-        self.height = self.superview.height;
-    }
-    if (self.contentWeight) {
-        CGFloat remain = self.width - self.contentWidth;
-        for (UIView *child in self.subviews) {
-            if (child.isHidden) {
-                continue;
-            }
-            DoricLinearConfig *childConfig = [self configForChild:child];
         if (childConfig.weight) {
-                child.width += remain / self.contentWeight * childConfig.weight;
+            childSize.width = child.width;
         }
+        contentWidth += childSize.width + self.space + childConfig.margin.left + childConfig.margin.right;
+        contentHeight = MAX(contentHeight, childSize.height + childConfig.margin.top + childConfig.margin.bottom);
+        contentWeight += childConfig.weight;
     }
-        self.contentWidth = self.width;
+    contentWidth -= self.space;
+    self.contentWidth = contentWidth;
+    self.contentHeight = contentHeight;
+    self.contentWeight = contentWeight;
+    if (contentWeight) {
+        contentWidth = size.width;
     }
+    return CGSizeMake(contentWidth, contentHeight);
 }
 
-- (void)layout {
+- (void)layout:(CGSize)targetSize {
     CGFloat xStart = 0;
-    if ((self.gravity & LEFT) == LEFT) {
+    if (self.contentWeight) {
+        xStart = 0;
+    } else if ((self.gravity & LEFT) == LEFT) {
         xStart = 0;
     } else if ((self.gravity & RIGHT) == RIGHT) {
-        xStart = self.width - self.contentWidth;
+        xStart = targetSize.width - self.contentWidth;
     } else if ((self.gravity & CENTER_X) == CENTER_X) {
-        xStart = (self.width - self.contentWidth) / 2;
+        xStart = (targetSize.width - self.contentWidth) / 2;
     }
+    CGFloat remain = targetSize.width - self.contentWidth;
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricLinearConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+
+        CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width - xStart, targetSize.height)];
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            size.width = targetSize.width - xStart;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            size.height = targetSize.height;
+        }
+        if (childConfig.weight) {
+            size.width = child.width;
+        }
+
+        if (childConfig.weight) {
+            size.width += remain / self.contentWeight * childConfig.weight;
+        }
+        child.width = size.width;
+        child.height = size.height;
+
         DoricGravity gravity = childConfig.alignment | self.gravity;
         if ((gravity & TOP) == TOP) {
             child.top = 0;
         } else if ((gravity & BOTTOM) == BOTTOM) {
-            child.bottom = self.height;
+            child.bottom = targetSize.height;
         } else if ((gravity & CENTER_Y) == CENTER_Y) {
-            child.centerY = self.height / 2;
+            child.centerY = targetSize.height / 2;
         } else {
             if (childConfig.margin.top) {
                 child.top = childConfig.margin.top;
             } else if (childConfig.margin.bottom) {
-                child.bottom = self.height - childConfig.margin.bottom;
+                child.bottom = targetSize.height - childConfig.margin.bottom;
             }
         }
 
-        if (childConfig.heightSpec == DoricLayoutAtMost) {
-            child.height = self.height;
-        }
-        if (childConfig.widthSpec == DoricLayoutAtMost) {
-            child.width = self.width - xStart - childConfig.margin.right - childConfig.margin.left - self.space;
-        }
-
         if (childConfig.margin.left) {
             xStart += childConfig.margin.left;
         }
@@ -441,9 +474,11 @@ - (void)layout {
             xStart += childConfig.margin.right;
         }
         if ([child isKindOfClass:[DoricLayoutContainer class]]) {
-            [(DoricLayoutContainer *) child layout];
+            [(DoricLayoutContainer *) child layout:size];
         }
     }
+    self.width = targetSize.width;
+    self.height = targetSize.height;
 }
 @end
 

iOS/Pod/Classes/Shader/DoricListItemNode.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/15.
+//
+
+#import <Foundation/Foundation.h>
+
+#import "DoricStackNode.h"
+
+@interface DoricListItemNode : DoricStackNode
+@end

iOS/Pod/Classes/Shader/DoricListItemNode.m

@@ -0,0 +1,44 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/15.
+//
+
+#import "DoricListItemNode.h"
+#import "DoricExtensions.h"
+
+@interface DoricListItemNode ()
+@end
+
+@interface DoricListItemView : DoricStackView
+@end
+
+@implementation DoricListItemView
+@end
+
+
+@implementation DoricListItemNode
+- (instancetype)initWithContext:(DoricContext *)doricContext {
+    if (self = [super initWithContext:doricContext]) {
+        self.reusable = YES;
+    }
+    return self;
+}
+
+- (DoricStackView *)build {
+    return [DoricListItemView new];
+}
+@end

iOS/Pod/Classes/Shader/DoricListNode.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/15.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricSuperNode.h"
+
+@interface DoricListNode : DoricSuperNode<UITableView *>
+@end

iOS/Pod/Classes/Shader/DoricListNode.m

@@ -0,0 +1,153 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/15.
+//
+
+#import <JavaScriptCore/JavaScriptCore.h>
+#import "DoricListNode.h"
+#import "DoricExtensions.h"
+#import "DoricListItemNode.h"
+
+@interface DoricTableViewCell : UITableViewCell
+@property(nonatomic, strong) DoricListItemNode *doricListItemNode;
+@end
+
+@implementation DoricTableViewCell
+@end
+
+@interface DoricListNode () <UITableViewDataSource, UITableViewDelegate>
+@property(nonatomic, strong) NSMutableDictionary <NSNumber *, NSString *> *itemViewIds;
+@property(nonatomic, strong) NSMutableDictionary <NSNumber *, NSNumber *> *itemHeights;
+@property(nonatomic, assign) NSUInteger itemCount;
+@property(nonatomic, assign) NSUInteger batchCount;
+@end
+
+@implementation DoricListNode
+- (instancetype)initWithContext:(DoricContext *)doricContext {
+    if (self = [super initWithContext:doricContext]) {
+        _itemViewIds = [NSMutableDictionary new];
+        _itemHeights = [NSMutableDictionary new];
+        _batchCount = 15;
+    }
+    return self;
+}
+
+- (UITableView *)build {
+    return [[UITableView new] also:^(UITableView *it) {
+        it.dataSource = self;
+        it.delegate = self;
+        it.separatorStyle = UITableViewCellSeparatorStyleNone;
+    }];
+}
+
+- (void)blendView:(UITableView *)view forPropName:(NSString *)name propValue:(id)prop {
+    if ([@"itemCount" isEqualToString:name]) {
+        self.itemCount = [prop unsignedIntegerValue];
+    } else if ([@"renderItem" isEqualToString:name]) {
+        [self.itemViewIds removeAllObjects];
+        [self clearSubModel];
+    } else if ([@"batchCount" isEqualToString:name]) {
+        self.batchCount = [prop unsignedIntegerValue];
+    } else {
+        [super blendView:view forPropName:name propValue:prop];
+    }
+}
+
+- (void)blend:(NSDictionary *)props {
+    [super blend:props];
+}
+
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
+    return self.itemCount;
+}
+
+- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
+    NSUInteger position = (NSUInteger) indexPath.row;
+    NSDictionary *model = [self itemModelAt:position];
+    NSDictionary *props = model[@"props"];
+    NSString *reuseId = props[@"identifier"];
+
+    DoricTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseId ?: @"doriccell"];
+    if (!cell) {
+        cell = [[DoricTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseId ?: @"doriccell"];
+        DoricListItemNode *listItemNode = [[DoricListItemNode alloc] initWithContext:self.doricContext];
+        [listItemNode initWithSuperNode:self];
+        cell.doricListItemNode = listItemNode;
+        [cell.contentView addSubview:listItemNode.view];
+    }
+    DoricListItemNode *node = cell.doricListItemNode;
+    node.viewId = model[@"id"];
+    [node blend:props];
+    CGSize size = [node.view sizeThatFits:CGSizeMake(cell.width, cell.height)];
+    [self callItem:position height:size.height];
+    return cell;
+}
+
+- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
+    NSUInteger position = (NSUInteger) indexPath.row;
+    NSNumber *heightNumber = self.itemHeights[@(position)];
+    if (heightNumber) {
+        return [heightNumber floatValue];
+    } else {
+        return 44.f;
+    }
+
+}
+
+- (NSDictionary *)itemModelAt:(NSUInteger)position {
+    NSString *viewId = self.itemViewIds[@(position)];
+    if (viewId && viewId.length > 0) {
+        return [self subModelOf:viewId];
+    } else {
+        DoricAsyncResult *result = [self callJSResponse:@"renderBunchedItems", @(position), @(self.batchCount), nil];
+        JSValue *models = [result waitUntilResult];
+        NSArray *array = [models toArray];
+        [array enumerateObjectsUsingBlock:^(NSDictionary *obj, NSUInteger idx, BOOL *stop) {
+            NSString *thisViewId = obj[@"id"];
+            [self setSubModel:obj in:thisViewId];
+            NSUInteger pos = position + idx;
+            self.itemViewIds[@(pos)] = thisViewId;
+        }];
+        return array[0];
+    }
+}
+
+- (void)blendSubNode:(NSDictionary *)subModel {
+    NSString *viewId = subModel[@"id"];
+    [self.itemViewIds enumerateKeysAndObjectsUsingBlock:^(NSNumber *_Nonnull key, NSString *_Nonnull obj, BOOL *_Nonnull stop) {
+        if ([viewId isEqualToString:obj]) {
+            *stop = YES;
+            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:[key integerValue] inSection:0];
+            [UIView performWithoutAnimation:^{
+                [self.view reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
+            }];
+        }
+    }];
+}
+
+- (void)callItem:(NSUInteger)position height:(CGFloat)height {
+    NSNumber *old = self.itemHeights[@(position)];
+    if (old && old.floatValue == height) {
+        return;
+    }
+    self.itemHeights[@(position)] = @(height);
+    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:position inSection:0];
+    [UIView performWithoutAnimation:^{
+        [self.view reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
+    }];
+}
+@end

iOS/Pod/Classes/Shader/DoricRootNode.m

@@ -25,13 +25,12 @@
 @implementation DoricRootNode
 - (void)setupRootView:(DoricStackView *)view {
     self.view = view;
-    self.layoutConfig = view.layoutConfig;
 }
 
 - (void)render:(NSDictionary *)props {
     [self blend:props];
 }
 - (void)requestLayout {
-    [self.view requestLayout];
+    [self.view setNeedsLayout];
 }
 @end

iOS/Pod/Classes/Shader/DoricStackNode.h

@@ -22,5 +22,5 @@
 
 #import "DoricGroupNode.h"
 
-@interface DoricStackNode : DoricGroupNode<DoricStackView *, DoricStackConfig *>
+@interface DoricStackNode : DoricGroupNode<DoricStackView *>
 @end

iOS/Pod/Classes/Shader/DoricStackNode.m

@@ -21,11 +21,10 @@
 //
 
 #import "DoricStackNode.h"
-#import "DoricUtil.h"
 
 @implementation DoricStackNode
 
-- (DoricStackView *)build:(NSDictionary *)props {
+- (DoricStackView *)build {
     return [DoricStackView new];
 }
 
@@ -36,22 +35,4 @@ - (void)blendView:(DoricStackView *)view forPropName:(NSString *)name propValue:
         [super blendView:view forPropName:name propValue:prop];
     }
 }
-
-- (DoricStackConfig *)generateDefaultLayoutParams {
-    return [[DoricStackConfig alloc] init];
-}
-
-- (void)blendChild:(DoricViewNode *)child layoutConfig:(NSDictionary *)layoutConfig {
-    [super blendChild:child layoutConfig:layoutConfig];
-    if (![child.layoutConfig isKindOfClass:DoricStackConfig.class]) {
-        DoricLog(@"blend DoricHLayoutView child error,layout params not match");
-        return;
-    }
-    DoricStackConfig *params = (DoricStackConfig *) child.layoutConfig;
-    NSNumber *alignment = layoutConfig[@"alignment"];
-    if (alignment) {
-        params.alignment = (DoricGravity) [alignment integerValue];
-    }
-}
-
 @end

iOS/Pod/Classes/Shader/DoricSuperNode.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/15.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricViewNode.h"
+
+@interface DoricSuperNode<V:UIView *> : DoricViewNode<V>
+- (DoricLayoutConfig *)generateDefaultLayoutParams;
+
+- (void)blendSubNode:(DoricViewNode *)subNode layoutConfig:(NSDictionary *)layoutConfig;
+
+- (void)blendSubNode:(NSDictionary *)subModel;
+
+- (NSDictionary *)subModelOf:(NSString *)viewId;
+
+- (void)setSubModel:(NSDictionary *)model in:(NSString *)viewId;
+
+- (void)clearSubModel;
+@end

iOS/Pod/Classes/Shader/DoricSuperNode.m

@@ -0,0 +1,122 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/15.
+//
+
+#import "DoricSuperNode.h"
+#import "DoricExtensions.h"
+
+@interface DoricSuperNode ()
+@property(nonatomic, strong) NSMutableDictionary <NSString *, NSMutableDictionary *> *subNodes;
+@end
+
+@implementation DoricSuperNode
+- (instancetype)initWithContext:(DoricContext *)doricContext {
+    if (self = [super initWithContext:doricContext]) {
+        _subNodes = [NSMutableDictionary new];
+    }
+    return self;
+}
+
+- (void)blendView:(UIView *)view forPropName:(NSString *)name propValue:(id)prop {
+    if ([@"subviews" isEqualToString:name]) {
+        NSArray *subviews = prop;
+        for (NSDictionary *subModel in subviews) {
+            [self mixinSubNode:subModel];
+            [self blendSubNode:subModel];
+        }
+    } else {
+        [super blendView:view forPropName:name propValue:prop];
+    }
+}
+
+- (void)mixinSubNode:(NSDictionary *)dictionary {
+    NSString *viewId = dictionary[@"id"];
+    NSMutableDictionary *oldModel = self.subNodes[viewId];
+    if (oldModel) {
+        [self mixin:dictionary to:oldModel];
+    } else {
+        self.subNodes[viewId] = [dictionary mutableCopy];
+    }
+}
+
+- (void)mixin:(NSDictionary *)srcModel to:(NSMutableDictionary *)targetModel {
+    NSDictionary *srcProp = srcModel[@"props"];
+    NSMutableDictionary *targetProp = [targetModel[@"props"] mutableCopy];
+    [srcProp enumerateKeysAndObjectsUsingBlock:^(NSString *key, id obj, BOOL *stop) {
+        if (![@"subviews" isEqualToString:key]) {
+            targetProp[key] = obj;
+        }
+    }];
+    targetModel[@"props"] = [targetProp copy];
+}
+
+- (void)blendSubNode:(DoricViewNode *)subNode layoutConfig:(NSDictionary *)layoutConfig {
+    DoricLayoutConfig *params = subNode.layoutConfig;
+
+    [layoutConfig[@"widthSpec"] also:^(NSNumber *it) {
+        if (it) {
+            params.widthSpec = (DoricLayoutSpec) [it integerValue];
+        }
+    }];
+
+    [layoutConfig[@"heightSpec"] also:^(NSNumber *it) {
+        if (it) {
+            params.heightSpec = (DoricLayoutSpec) [it integerValue];
+        }
+    }];
+
+    NSDictionary *margin = layoutConfig[@"margin"];
+    if (margin) {
+        params.margin = DoricMarginMake(
+                [(NSNumber *) margin[@"left"] floatValue],
+                [(NSNumber *) margin[@"top"] floatValue],
+                [(NSNumber *) margin[@"right"] floatValue],
+                [(NSNumber *) margin[@"bottom"] floatValue]);
+    }
+
+    NSNumber *alignment = layoutConfig[@"alignment"];
+    if (alignment) {
+        params.alignment = (DoricGravity) [alignment integerValue];
+    }
+
+}
+
+- (void)blendSubNode:(NSDictionary *)subModel {
+    NSAssert(NO, @"Should override class:%@ ,method:%@.", NSStringFromClass([self class]),
+            NSStringFromSelector(_cmd));
+}
+
+- (DoricLayoutConfig *)generateDefaultLayoutParams {
+    DoricLayoutConfig *params = [[DoricLayoutConfig alloc] init];
+    return params;
+}
+
+
+- (NSDictionary *)subModelOf:(NSString *)viewId {
+    return self.subNodes[viewId];
+}
+
+- (void)setSubModel:(NSDictionary *)model in:(NSString *)viewId {
+    self.subNodes[viewId] = [model mutableCopy];
+}
+
+- (void)clearSubModel {
+    [self.subNodes removeAllObjects];
+}
+
+@end

iOS/Pod/Classes/Shader/DoricTextNode.m

@@ -25,7 +25,7 @@
 #import "DoricGroupNode.h"
 
 @implementation DoricTextNode
-- (id)build:(NSDictionary *)props {
+- (UILabel *)build {
     return [[UILabel alloc] init];
 }
 

iOS/Pod/Classes/Shader/DoricVLayoutNode.h

@@ -22,5 +22,5 @@
 
 #import "DoricGroupNode.h"
 
-@interface DoricVLayoutNode : DoricGroupNode<DoricVLayoutView *, DoricLinearConfig *>
+@interface DoricVLayoutNode : DoricGroupNode<DoricVLayoutView *>
 @end

iOS/Pod/Classes/Shader/DoricVLayoutNode.m

@@ -21,11 +21,10 @@
 //
 
 #import "DoricVLayoutNode.h"
-#import "DoricUtil.h"
 
 @implementation DoricVLayoutNode
 
-- (DoricVLayoutView *)build:(NSDictionary *)props {
+- (DoricVLayoutView *)build {
     return [DoricVLayoutView new];
 }
 
@@ -39,28 +38,4 @@ - (void)blendView:(DoricVLayoutView *)view forPropName:(NSString *)name propValu
     }
 }
 
-- (void)blendChild:(DoricViewNode *)child layoutConfig:(NSDictionary *)layoutconfig {
-    [super blendChild:child layoutConfig:layoutconfig];
-    if (![child.layoutConfig isKindOfClass:DoricLinearConfig.class]) {
-        DoricLog(@"blend DoricVLayoutView child error,layout params not match");
-        return;
-    }
-    DoricLinearConfig *params = (DoricLinearConfig *) child.layoutConfig;
-    NSDictionary *margin = layoutconfig[@"margin"];
-    if (margin) {
-        params.margin = DoricMarginMake(
-                [(NSNumber *) margin[@"left"] floatValue],
-                [(NSNumber *) margin[@"top"] floatValue],
-                [(NSNumber *) margin[@"right"] floatValue],
-                [(NSNumber *) margin[@"bottom"] floatValue]);
-    }
-    NSNumber *alignment = layoutconfig[@"alignment"];
-    if (alignment) {
-        params.alignment = (DoricGravity) [alignment integerValue];
-    }
-}
-
-- (DoricLinearConfig *)generateDefaultLayoutParams {
-    return [[DoricLinearConfig alloc] init];
-}
 @end

iOS/Pod/Classes/Shader/DoricViewNode.h

@@ -25,30 +25,33 @@
 #import "UIView+Doric.h"
 
 NS_ASSUME_NONNULL_BEGIN
-@class DoricGroupNode;
+@class DoricSuperNode;
 
 @interface DoricViewNode <V:UIView *> : DoricContextHolder
 
 @property(nonatomic, strong) V view;
-
+@property(nonatomic, weak) DoricSuperNode *superNode;
-@property(nonatomic, weak) DoricGroupNode *parent;
 @property(nonatomic) NSInteger index;
 
-@property(nonatomic, strong) NSString *viewId;
+@property(nonatomic, copy) NSString *viewId;
 
-@property(nonatomic, strong) DoricLayoutConfig *layoutConfig;
+@property(nonatomic, copy) NSString *type;
 
-@property(nonatomic, strong, readonly) NSArray<NSString *> *idList;
+@property(nonatomic, readonly) DoricLayoutConfig *layoutConfig;
 
-- (V)build:(NSDictionary *)props;
+@property(nonatomic, readonly) NSArray<NSString *> *idList;
+
+- (void)initWithSuperNode:(DoricSuperNode *)superNode;
+
+- (V)build;
 
 - (void)blend:(NSDictionary *)props;
 
 - (void)blendView:(V)view forPropName:(NSString *)name propValue:(id)prop;
 
-- (void)callJSResponse:(NSString *)funcId, ...;
+- (DoricAsyncResult *)callJSResponse:(NSString *)funcId, ...;
 
-+ (DoricViewNode *)create:(DoricContext *)context withType:(NSString *)type;
++ (__kindof DoricViewNode *)create:(DoricContext *)context withType:(NSString *)type;
 
 - (void)requestLayout;
 @end

iOS/Pod/Classes/Shader/DoricViewNode.m

@@ -25,6 +25,8 @@
 #import "DoricGroupNode.h"
 #import "DoricRootNode.h"
 #import "DoricConstant.h"
+#import "DoricSuperNode.h"
+#import "DoricExtensions.h"
 
 void DoricAddEllipticArcPath(CGMutablePathRef path,
         CGPoint origin,
@@ -77,14 +79,23 @@ - (instancetype)initWithContext:(DoricContext *)doricContext {
     return self;
 }
 
-- (UIView *)build:(NSDictionary *)props {
+
+- (void)initWithSuperNode:(DoricSuperNode *)superNode {
+    self.superNode = superNode;
+    self.view = [[self build] also:^(UIView *it) {
+        it.layoutConfig = [superNode generateDefaultLayoutParams];
+    }];
+}
+
+- (DoricLayoutConfig *)layoutConfig {
+    return self.view.layoutConfig;
+}
+
+- (UIView *)build {
     return [[UIView alloc] init];
 }
 
 - (void)blend:(NSDictionary *)props {
-    if (self.view == nil) {
-        self.view = [self build:props];
-    }
     self.view.layoutConfig = self.layoutConfig;
     for (NSString *key in props) {
         id value = props[key];
@@ -110,8 +121,8 @@ - (void)blendView:(UIView *)view forPropName:(NSString *)name propValue:(id)prop
     } else if ([name isEqualToString:@"bgColor"]) {
         view.backgroundColor = DoricColor(prop);
     } else if ([name isEqualToString:@"layoutConfig"]) {
-        if (self.parent && [prop isKindOfClass:[NSDictionary class]]) {
+        if (self.superNode && [prop isKindOfClass:[NSDictionary class]]) {
-            [self.parent blendChild:self layoutConfig:prop];
+            [self.superNode blendSubNode:self layoutConfig:prop];
         }
     } else if ([name isEqualToString:@"onClick"]) {
         self.callbackIds[@"onClick"] = prop;
@@ -176,13 +187,13 @@ - (void)onClick:(UIView *)view {
     DoricViewNode *node = self;
     do {
         [ret addObject:node.viewId];
-        node = node.parent;
+        node = node.superNode;
     } while (node && ![node isKindOfClass:[DoricRootNode class]]);
 
     return [[ret reverseObjectEnumerator] allObjects];
 }
 
-- (void)callJSResponse:(NSString *)funcId, ... {
+- (DoricAsyncResult *)callJSResponse:(NSString *)funcId, ... {
     NSMutableArray *array = [[NSMutableArray alloc] init];
     [array addObject:self.idList];
     [array addObject:funcId];
@@ -192,18 +203,21 @@ - (void)callJSResponse:(NSString *)funcId, ... {
     while ((arg = va_arg(args, id)) != nil) {
         [array addObject:arg];
     }
-    [self.doricContext callEntity:DORIC_ENTITY_RESPONSE withArgumentsArray:array];
+    DoricAsyncResult *ret = [self.doricContext callEntity:DORIC_ENTITY_RESPONSE withArgumentsArray:array];
     va_end(args);
+    return ret;
 }
 
-+ (DoricViewNode *)create:(DoricContext *)context withType:(NSString *)type {
++ (__kindof DoricViewNode *)create:(DoricContext *)context withType:(NSString *)type {
     DoricRegistry *registry = context.driver.registry;
     Class clz = [registry acquireViewNode:type];
-    return [(DoricViewNode *) [clz alloc] initWithContext:context];
+    DoricViewNode *viewNode = [(DoricViewNode *) [clz alloc] initWithContext:context];
+    viewNode.type = type;
+    return viewNode;
 }
 
 - (void)requestLayout {
-    [self.parent requestLayout];
+    [self.superNode requestLayout];
 }
 
 @end

iOS/Pod/Classes/Util/DoricAsyncResult.h

@@ -43,6 +43,8 @@ typedef void(^DoricFinishCallback)(void);
 - (BOOL)hasResult;
 
 - (R)getResult;
+
+- (R)waitUntilResult;
 @end
 
 NS_ASSUME_NONNULL_END

iOS/Pod/Classes/Util/DoricAsyncResult.m

@@ -47,6 +47,7 @@ - (void)setupError:(NSException *)exception {
         self.finishCallback();
     }
 }
+
 - (BOOL)hasResult {
     return self.result;
 }
@@ -75,4 +76,17 @@ - (void)setFinishCallback:(DoricFinishCallback)callback {
         callback();
     }
 }
+
+- (id)waitUntilResult {
+    if (self.result) {
+        return self.result;
+    }
+
+    dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
+    self.resultCallback = ^(id r) {
+        dispatch_semaphore_signal(semaphore);
+    };
+    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
+    return self.result;
+}
 @end

iOS/Pod/Classes/Util/DoricUtil.h

@@ -26,7 +26,7 @@ void DoricLog(NSString *_Nonnull format, ...);
 
 UIColor *_Nonnull DoricColor(NSNumber *_Nonnull number);
 
-NSBundle *DoricBundle();
+NSBundle *_Nonnull DoricBundle(void);
 
 #ifndef DC_LOCK
 #define DC_LOCK(lock) dispatch_semaphore_wait(lock, DISPATCH_TIME_FOREVER);

js-framework/index.ts

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 export * from "./src/ui/view"
+export * from "./src/ui/layout"
+export * from "./src/ui/listview"
+export * from "./src/ui/widgets"
 export * from "./src/ui/panel"
 export * from "./src/ui/declarative"
 export * from "./src/util/color"

js-framework/src/ui/declarative.ts

@@ -1,51 +1,23 @@
-import { Text, Image, HLayout, VLayout, Stack, LayoutConfig, View } from './view'
+/*
-import { Color, GradientColor } from '../util/color'
+ * Copyright [2019] [Doric.Pub]
-import { Gravity } from '../util/gravity'
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { View, LayoutSpec } from './view'
+import { Stack, HLayout, VLayout } from './layout'
+import { IText, IImage, Text, Image } from './widgets'
+import { IList, List } from './listview'
 
-export interface IView {
-    width?: number
-    height?: number
-    bgColor?: Color | GradientColor
-    corners?: number | { leftTop?: number; rightTop?: number; leftBottom?: number; rightBottom?: number }
-    border?: { width: number; color: Color; }
-    shadow?: { color: Color; opacity: number; radius: number; offsetX: number; offsetY: number }
-    alpha?: number
-    hidden?: boolean
-    padding?: {
-        left?: number,
-        right?: number,
-        top?: number,
-        bottom?: number,
-    }
-    layoutConfig?: LayoutConfig
-    onClick?: Function
-    identifier?: string
-}
-export interface IText extends IView {
-    text?: string
-    textColor?: Color
-    textSize?: number
-    maxLines?: number
-    textAlignment?: Gravity
-}
-
-export interface IImage extends IView {
-    imageUrl?: string
-}
-
-export interface IStack extends IView {
-    gravity?: Gravity
-}
-
-export interface IVLayout extends IView {
-    space?: number
-    gravity?: Gravity
-}
-
-export interface IHLayout extends IView {
-    space?: number
-    gravity?: Gravity
-}
 export function text(config: IText) {
     const ret = new Text
     for (let key in config) {
@@ -64,6 +36,10 @@ export function image(config: IImage) {
 
 export function stack(views: View[]) {
     const ret = new Stack
+    ret.layoutConfig = {
+        widthSpec: LayoutSpec.WRAP_CONTENT,
+        heightSpec: LayoutSpec.WRAP_CONTENT,
+    }
     for (let v of views) {
         ret.addChild(v)
     }
@@ -72,6 +48,10 @@ export function stack(views: View[]) {
 
 export function hlayout(views: View[]) {
     const ret = new HLayout
+    ret.layoutConfig = {
+        widthSpec: LayoutSpec.WRAP_CONTENT,
+        heightSpec: LayoutSpec.WRAP_CONTENT,
+    }
     for (let v of views) {
         ret.addChild(v)
     }
@@ -80,8 +60,20 @@ export function hlayout(views: View[]) {
 
 export function vlayout(views: View[]) {
     const ret = new VLayout
+    ret.layoutConfig = {
+        widthSpec: LayoutSpec.WRAP_CONTENT,
+        heightSpec: LayoutSpec.WRAP_CONTENT,
+    }
     for (let v of views) {
         ret.addChild(v)
     }
     return ret
 }
+
+export function list(config: IList) {
+    const ret = new List
+    for (let key in config) {
+        Reflect.set(ret, key, Reflect.get(config, key, config), ret)
+    }
+    return ret
+}

js-framework/src/ui/layout.ts

@@ -0,0 +1,56 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { LayoutConfig, Group, Property, IView } from "./view";
+import { Gravity } from "../util/gravity";
+
+export interface IStack extends IView {
+    gravity?: Gravity
+}
+
+export class Stack extends Group implements IStack {
+    @Property
+    gravity?: Gravity
+}
+
+
+
+export class Root extends Stack {
+
+}
+class LinearLayout extends Group {
+    @Property
+    space?: number
+
+    @Property
+    gravity?: Gravity
+}
+
+export interface IVLayout extends IView {
+    space?: number
+    gravity?: Gravity
+}
+
+export class VLayout extends LinearLayout implements VLayout {
+}
+
+
+export interface IHLayout extends IView {
+    space?: number
+    gravity?: Gravity
+}
+
+export class HLayout extends LinearLayout implements IHLayout {
+}

js-framework/src/ui/listview.ts

@@ -0,0 +1,86 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { View, Property, LayoutSpec, Superview, IView } from "./view";
+import { Stack } from "./layout";
+
+export function listItem(item: View) {
+    return (new ListItem).also((it) => {
+        it.layoutConfig = {
+            widthSpec: LayoutSpec.WRAP_CONTENT,
+            heightSpec: LayoutSpec.WRAP_CONTENT,
+        }
+        it.addChild(item)
+    })
+}
+
+export class ListItem extends Stack {
+    /**
+     * Set to reuse native view
+     */
+    @Property
+    identifier?: string
+}
+
+export interface IList extends IView {
+    renderItem: (index: number) => ListItem
+    itemCount: number
+    batchCount?: number
+}
+
+export class List extends Superview implements IList {
+    private cachedViews: Map<string, ListItem> = new Map
+    private ignoreDirtyCallOnce = false
+    allSubviews() {
+        return this.cachedViews.values()
+    }
+
+    @Property
+    itemCount = 0
+
+    @Property
+    renderItem!: (index: number) => ListItem
+
+    @Property
+    batchCount = 15
+
+    private getItem(itemIdx: number) {
+        let view = this.cachedViews.get(`${itemIdx}`)
+        if (view === undefined) {
+            view = this.renderItem(itemIdx)
+            view.superview = this
+            this.cachedViews.set(`${itemIdx}`, view)
+        }
+        return view
+    }
+
+    isDirty() {
+        if (this.ignoreDirtyCallOnce) {
+            this.ignoreDirtyCallOnce = false
+            //Ignore the dirty call once.
+            return false
+        }
+        return super.isDirty()
+    }
+
+    private renderBunchedItems(start: number, length: number) {
+        this.ignoreDirtyCallOnce = true;
+        return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
+            const listItem = this.getItem(start + idx)
+            return listItem.toModel()
+        })
+    }
+}

js-framework/src/ui/panel.ts

@@ -14,9 +14,10 @@
  * limitations under the License.
  */
 import './../runtime/global'
-import { View, Group, Root } from "./view";
+import { View, Group } from "./view";
-import { loge, log } from '../util/log';
+import { loge } from '../util/log';
 import { Model } from '../util/types';
+import { Root } from './layout';
 
 
 export function NativeCall(target: Panel, propertyKey: string, descriptor: PropertyDescriptor) {
@@ -93,13 +94,13 @@ export abstract class Panel {
         for (let i = 2; i < arguments.length; i++) {
             argumentsList.push(arguments[i])
         }
-        Reflect.apply(v.responseCallback, v, argumentsList)
+        return Reflect.apply(v.responseCallback, v, argumentsList)
     }
 
     private retrospectView(ids: string[]): View {
         return ids.reduce((acc: View, cur) => {
-            if (Reflect.has(acc, "subViewById")) {
+            if (Reflect.has(acc, "subviewById")) {
-                return Reflect.apply(Reflect.get(acc, "subViewById"), acc, [cur])
+                return Reflect.apply(Reflect.get(acc, "subviewById"), acc, [cur])
             }
             return acc
         }, this.__root__)
@@ -112,13 +113,13 @@ export abstract class Panel {
     }
 
     private hookBeforeNativeCall() {
+        this.__root__.clean()
     }
 
     private hookAfterNativeCall() {
         if (this.__root__.isDirty()) {
             const model = this.__root__.toModel()
             this.nativeRender(model)
-            this.__root__.clean()
         }
     }
 

js-framework/src/ui/view.ts

@@ -35,13 +35,36 @@ export interface LayoutConfig {
         bottom?: number,
     }
     alignment?: Gravity
+    //Only affective in VLayout or HLayout
+    weight?: number
 }
 
 export function Property(target: Object, propKey: string) {
     Reflect.defineMetadata(propKey, true, target)
 }
 
-export abstract class View implements Modeling {
+export interface IView {
+    width?: number
+    height?: number
+    bgColor?: Color | GradientColor
+    corners?: number | { leftTop?: number; rightTop?: number; leftBottom?: number; rightBottom?: number }
+    border?: { width: number; color: Color; }
+    shadow?: { color: Color; opacity: number; radius: number; offsetX: number; offsetY: number }
+    alpha?: number
+    hidden?: boolean
+    padding?: {
+        left?: number,
+        right?: number,
+        top?: number,
+        bottom?: number,
+    }
+    layoutConfig?: LayoutConfig
+    onClick?: Function
+    identifier?: string
+}
+
+
+export abstract class View implements Modeling, IView {
     @Property
     width: number = 0
 
@@ -89,13 +112,7 @@ export abstract class View implements Modeling {
     @Property
     onClick?: Function
 
-    /**
+    superview?: Superview
-     * Set to reuse native view
-     */
-    @Property
-    identifier?: string
-
-    parent?: Group
 
     callbacks: Map<String, Function> = new Map
 
@@ -106,7 +123,10 @@ export abstract class View implements Modeling {
     }
 
     private id2Callback(id: string) {
-        const f = this.callbacks.get(id)
+        let f = this.callbacks.get(id)
+        if (f === undefined) {
+            f = Reflect.get(this, id) as Function
+        }
         return f
     }
 
@@ -173,7 +193,11 @@ export abstract class View implements Modeling {
     }
     /** Anchor end*/
 
-    __dirty_props__: { [index: string]: Model | undefined } = {}
+    private __dirty_props__: { [index: string]: Model | undefined } = {}
+
+    get dirtyProps() {
+        return this.__dirty_props__
+    }
 
     nativeViewModel = {
         id: this.viewId,
@@ -188,9 +212,6 @@ export abstract class View implements Modeling {
             newV = obj2Model(newV)
         }
         this.__dirty_props__[propKey] = newV
-        if (this.parent instanceof Group) {
-            this.parent.onChildPropertyChanged(this)
-        }
     }
 
     clean() {
@@ -212,7 +233,7 @@ export abstract class View implements Modeling {
             for (let i = 1; i < arguments.length; i++) {
                 argumentsList.push(arguments[i])
             }
-            Reflect.apply(f, this, argumentsList)
+            return Reflect.apply(f, this, argumentsList)
         } else {
             loge(`Cannot find callback:${id} for ${JSON.stringify(this.toModel())}`)
         }
@@ -221,249 +242,80 @@ export abstract class View implements Modeling {
     toModel() {
         return this.nativeViewModel
     }
+
     let(block: (it: this) => void) {
         block(this)
     }
+
     also(block: (it: this) => void) {
         block(this)
         return this
     }
+
     in(group: Group) {
         group.addChild(this)
     }
 }
 
-export interface StackConfig extends LayoutConfig {
+export abstract class Superview extends View {
+    subviewById(id: string): View | undefined {
+        for (let v of this.allSubviews()) {
+            if (v.viewId === id) {
+                return v
+            }
+        }
+    }
+    abstract allSubviews(): Iterable<View>
 
-}
+    isDirty() {
-
+        if (super.isDirty()) {
-export interface LinearConfig extends LayoutConfig {
+            return true
-    weight?: number
+        } else {
-}
+            for (const v of this.allSubviews()) {
-
+                if (v.isDirty()) {
-export interface SuperView {
+                    return true
-    subViewById(id: string): View | undefined
-}
-
-export abstract class Group extends View implements SuperView {
-    @Property
-    readonly children: View[] = new Proxy([], {
-        set: (target, index, value) => {
-            if (index === 'length') {
-                this.getDirtyChildrenModel().length = value as number
-            } else if (typeof index === 'string'
-                && parseInt(index) >= 0
-                && value instanceof View) {
-                value.parent = this
-                const childrenModel = this.getDirtyChildrenModel()
-                childrenModel[parseInt(index)] = value.nativeViewModel
-            }
-            if (this.parent) {
-                this.parent.onChildPropertyChanged(this)
-            }
-
-            return Reflect.set(target, index, value)
-        }
-    })
-
-    subViewById(id: string): View | undefined {
-        for (let view of this.children) {
-            if (view.viewId === id) {
-                return view
                 }
             }
-        return undefined
         }
-    addChild(view: View) {
+        return false
-        this.children.push(view)
     }
 
     clean() {
-        this.children.forEach(e => { e.clean() })
+        for (let v of this.allSubviews()) {
+            v.clean()
+        }
         super.clean()
     }
 
-    getDirtyChildrenModel(): Model[] {
-        if (this.__dirty_props__.children === undefined) {
-            this.__dirty_props__.children = []
-        }
-        return this.__dirty_props__.children as Model[]
-    }
-
     toModel() {
-        if (this.__dirty_props__.children != undefined) {
+        const subviews = []
-            (this.__dirty_props__.children as Model[]).length = this.children.length
+        for (let v of this.allSubviews()) {
+            if (v.isDirty()) {
+                subviews.push(v.toModel())
             }
+        }
+        this.dirtyProps.subviews = subviews
         return super.toModel()
     }
+}
 
-    onChildPropertyChanged(child: View) {
+export abstract class Group extends Superview {
-        this.getDirtyChildrenModel()[this.children.indexOf(child)] = child.nativeViewModel
+
-        this.getDirtyChildrenModel().length = this.children.length
+    readonly children: View[] = new Proxy([], {
-        if (this.parent) {
+        set: (target, index, value) => {
-            this.parent.onChildPropertyChanged(this)
+            const ret = Reflect.set(target, index, value)
+            // Let getDirty return true
+            this.dirtyProps.children = this.children.map(e => e.viewId)
+            return ret
+        }
+    })
+
+    allSubviews() {
+        return this.children
+    }
+
+    addChild(view: View) {
+        this.children.push(view)
     }
 }
 
-    isDirty() {
-        return super.isDirty()
-    }
-}
-
-export class Stack extends Group {
-    @Property
-    gravity?: Gravity
-}
-
-export class Scroller extends View implements SuperView {
-    @Property
-    contentView?: View
-
-    subViewById(id: string): View | undefined {
-        return this.contentView
-    }
-}
-
-export class Root extends Stack {
-
-}
-class LinearLayout extends Group {
-    @Property
-    space?: number
-
-    @Property
-    gravity?: Gravity
-}
-
-export class VLayout extends LinearLayout {
-}
-
-export class HLayout extends LinearLayout {
-}
-
-export class Text extends View {
-    @Property
-    text?: string
-
-    @Property
-    textColor?: Color
-
-    @Property
-    textSize?: number
-
-    @Property
-    maxLines?: number
-
-    @Property
-    textAlignment?: Gravity
-}
-
-export class Image extends View {
-    @Property
-    imageUrl?: string
-}
-
-export class List extends View implements SuperView {
-    private cachedViews: Map<string, View> = new Map
-
-    subViewById(id: string): View | undefined {
-        return this.cachedViews.get(id)
-    }
-
-    @Property
-    itemCount = 0
-
-    @Property
-    renderItem!: (index: number) => View
-
-
-    private getItem(itemIdx: number) {
-        let view = this.cachedViews.get(`${itemIdx}`)
-        if (view === undefined) {
-            view = this.renderItem(itemIdx)
-            this.cachedViews.set(`${itemIdx}`, view)
-        }
-        return view
-    }
-
-    @Property
-    private renderBunchedItems(items: number[]): View[] {
-        return items.map(e => this.getItem(e))
-    }
-}
-
-export class SectionList extends View implements SuperView {
-    private cachedViews: Map<string, View> = new Map
-
-    subViewById(id: string): View | undefined {
-        return this.cachedViews.get(id)
-    }
-    @Property
-    sectionRowsCount: number[] = []
-
-    @Property
-    renderSectionHeader!: (sectionIdx: number) => View
-
-    @Property
-    renderItem!: (sectionIdx: number, itemIdx: number) => View
-
-    @Property
-    sectionHeaderSticky = true
-
-    setupSectionRows(sectionCount: number, numberOfSection: (section: number) => number) {
-        this.sectionRowsCount = [...Array(sectionCount).keys()].map(e => numberOfSection(e))
-    }
-
-    private getItem(sectionIdx: number, itemIdx: number) {
-        let view = this.cachedViews.get(`${sectionIdx}:${itemIdx}`)
-        if (view === undefined) {
-            view = this.renderItem(sectionIdx, itemIdx)
-            this.cachedViews.set(`${sectionIdx}:${itemIdx}`, view)
-        }
-        return view
-    }
-
-    private getSectionHeader(sectionIdx: number) {
-        let view = this.cachedViews.get(`${sectionIdx}:`)
-        if (view === undefined) {
-            view = this.renderSectionHeader(sectionIdx)
-            this.cachedViews.set(`${sectionIdx}:`, view)
-        }
-        return view
-    }
-
-    @Property
-    private renderBunchedItems(items: Array<{ itemIdx: number, sectionIdx: number }>,
-        headers: number[]): { items: View[], headers: View[] } {
-        return {
-            items: items.map(e => this.getItem(e.sectionIdx, e.itemIdx)),
-            headers: headers.map(e => this.getSectionHeader(e))
-        }
-    }
-}
-
-export class Slide extends View implements SuperView {
-    @Property
-    pageCount = 0
-
-    @Property
-    renderPage!: (pageIdx: number) => View
-
-    private cachedViews: Map<string, View> = new Map
-    subViewById(id: string): View | undefined {
-        return this.cachedViews.get(id)
-    }
-    private getPage(pageIdx: number) {
-        let view = this.cachedViews.get(`${pageIdx}`)
-        if (view === undefined) {
-            view = this.renderPage(pageIdx)
-            this.cachedViews.set(`${pageIdx}`, view)
-        }
-        return view
-    }
-
-    @Property
-    private renderBunchedPages(pages: number[]): View[] {
-        return pages.map(e => this.getPage(e))
-    }
-}

js-framework/src/ui/widgets.ts

@@ -0,0 +1,52 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { IView, View, Property } from "./view"
+import { Color } from "../util/color"
+import { Gravity } from "../util/gravity"
+
+export interface IText extends IView {
+    text?: string
+    textColor?: Color
+    textSize?: number
+    maxLines?: number
+    textAlignment?: Gravity
+}
+
+export class Text extends View implements IText {
+    @Property
+    text?: string
+
+    @Property
+    textColor?: Color
+
+    @Property
+    textSize?: number
+
+    @Property
+    maxLines?: number
+
+    @Property
+    textAlignment?: Gravity
+}
+
+export interface IImage extends IView {
+    imageUrl?: string
+}
+
+export class Image extends View implements IImage {
+    @Property
+    imageUrl?: string
+}

js-framework/src/util/gravity.ts

@@ -77,3 +77,6 @@ export class Gravity implements Modeling {
     }
 
 }
+export function gravity() {
+    return new Gravity
+}

js-framework/src/util/types.ts

@@ -35,7 +35,7 @@ export function obj2Model(obj: Model): Model {
     }
 }
 
-type _M = string | number | boolean | Modeling | { [index: string]: Model | undefined }
+type _M = string | number | boolean | Modeling | { [index: string]: Model } | undefined
 export type Model = _M | Array<_M>
 
 export type Binder<T> = (v: T) => void