add scrollview for android

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

@@ -20,6 +20,7 @@ import android.text.TextUtils;
 import pub.doric.plugin.ShaderPlugin;
 import pub.doric.shader.HLayoutNode;
 import pub.doric.shader.ImageNode;
+import pub.doric.shader.ScrollerNode;
 import pub.doric.shader.list.ListItemNode;
 import pub.doric.shader.list.ListNode;
 import pub.doric.shader.RootNode;
@@ -70,6 +71,7 @@ public class DoricRegistry {
         this.registerViewNode(HLayoutNode.class);
         this.registerViewNode(ListNode.class);
         this.registerViewNode(ListItemNode.class);
+        this.registerViewNode(ScrollerNode.class);
         initRegistry(this);
     }
 

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

@@ -34,8 +34,6 @@ public abstract class GroupNode<F extends ViewGroup> extends SuperNode<F> {
     private ArrayList<ViewNode> mChildNodes = new ArrayList<>();
     private ArrayList<String> mChildViewIds = new ArrayList<>();
 
-    protected boolean mReusable = false;
-
     public GroupNode(DoricContext doricContext) {
         super(doricContext);
     }
@@ -80,8 +78,8 @@ public abstract class GroupNode<F extends ViewGroup> extends SuperNode<F> {
                             mView.removeView(oldNode.getDoricLayer());
                             ViewNode newNode = ViewNode.create(getDoricContext(), type);
                             newNode.setId(id);
-                            if (newNode instanceof GroupNode) {
-                                ((GroupNode) newNode).mReusable = this.mReusable;
+                            if (newNode instanceof SuperNode) {
+                                ((SuperNode) newNode).mReusable = this.mReusable;
                             }
                             newNode.init(this);
                             newNode.blend(model.getProperty("props").asObject());
@@ -126,8 +124,8 @@ public abstract class GroupNode<F extends ViewGroup> extends SuperNode<F> {
                 //Insert
                 ViewNode newNode = ViewNode.create(getDoricContext(), type);
                 newNode.setId(id);
-                if (newNode instanceof GroupNode) {
-                    ((GroupNode) newNode).mReusable = this.mReusable;
+                if (newNode instanceof SuperNode) {
+                    ((SuperNode) newNode).mReusable = this.mReusable;
                 }
                 newNode.init(this);
                 newNode.blend(model.getProperty("props").asObject());

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

@@ -0,0 +1,101 @@
+/*
+ * 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 com.github.pengfeizhou.jscore.JSObject;
+import com.github.pengfeizhou.jscore.JSValue;
+
+import pub.doric.DoricContext;
+import pub.doric.extension.bridge.DoricPlugin;
+import pub.doric.widget.HVScrollView;
+
+/**
+ * @Description: pub.doric.shader
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-11-18
+ */
+@DoricPlugin(name = "Scroller")
+public class ScrollerNode extends SuperNode<HVScrollView> {
+    private String mChildViewId;
+    private ViewNode mChildNode;
+
+    public ScrollerNode(DoricContext doricContext) {
+        super(doricContext);
+    }
+
+    @Override
+    public ViewNode getSubNodeById(String id) {
+        return id.equals(mChildNode.getId()) ? mChildNode : null;
+    }
+
+    @Override
+    protected void blendSubNode(JSObject subProperties) {
+        if (mChildNode != null) {
+            mChildNode.blend(subProperties);
+        }
+    }
+
+    @Override
+    protected HVScrollView build() {
+        return new HVScrollView(getContext());
+    }
+
+    @Override
+    protected void blend(HVScrollView view, String name, JSValue prop) {
+        if ("content".equals(name)) {
+            mChildViewId = prop.asString().value();
+        } else {
+            super.blend(view, name, prop);
+        }
+    }
+
+    @Override
+    public void blend(JSObject jsObject) {
+        super.blend(jsObject);
+        JSObject contentModel = getSubModel(mChildViewId);
+        if (contentModel == null) {
+            return;
+        }
+        String viewId = contentModel.getProperty("id").asString().value();
+        String type = contentModel.getProperty("type").asString().value();
+        JSObject props = contentModel.getProperty("props").asObject();
+        if (mChildNode != null) {
+            if (mChildNode.getId().equals(viewId)) {
+                //skip
+            } else {
+                if (mReusable && type.equals(mChildNode.getType())) {
+                    mChildNode.setId(viewId);
+                    mChildNode.blend(props);
+                } else {
+                    mView.removeAllViews();
+                    mChildNode = ViewNode.create(getDoricContext(), type);
+                    mChildNode.setId(viewId);
+                    mChildNode.init(this);
+                    mChildNode.blend(props);
+                    mView.addView(mChildNode.getDoricLayer());
+                }
+            }
+        } else {
+            mChildNode = ViewNode.create(getDoricContext(), type);
+            mChildNode.setId(viewId);
+            mChildNode.init(this);
+            mChildNode.blend(props);
+            mView.addView(mChildNode.getDoricLayer());
+        }
+    }
+
+}

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

@@ -35,6 +35,7 @@ import pub.doric.utils.DoricUtils;
  */
 public abstract class SuperNode<V extends View> extends ViewNode<V> {
     private Map<String, JSObject> subNodes = new HashMap<>();
+    protected boolean mReusable = false;
 
     public SuperNode(DoricContext doricContext) {
         super(doricContext);

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

@@ -37,7 +37,9 @@ public class TextNode extends ViewNode<TextView> {
 
     @Override
     protected TextView build() {
-        return new TextView(getContext());
+        TextView tv = new TextView(getContext());
+        tv.setGravity(Gravity.CENTER);
+        return tv;
     }
 
     @Override