android: use webview as js executor

doric-android/app/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion '30.0.1'
     defaultConfig {
         applicationId "pub.doric.demo"
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"

doric-android/devkit/build.gradle

@@ -6,7 +6,7 @@ android {
 
 
     defaultConfig {
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"

doric-android/doric/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion '30.0.1'
 
     defaultConfig {
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"

doric-android/doric/src/main/java/pub/doric/engine/DoricWebViewJSExecutor.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright [2021] [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.engine;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.webkit.JavascriptInterface;
+import android.webkit.WebView;
+
+import com.github.pengfeizhou.jscore.JSDecoder;
+import com.github.pengfeizhou.jscore.JSRuntimeException;
+import com.github.pengfeizhou.jscore.JavaFunction;
+import com.github.pengfeizhou.jscore.JavaValue;
+
+
+/**
+ * @Description: This contains a webView which is used for executing JavaScript
+ * @Author: pengfei.zhou
+ * @CreateDate: 2021/11/3
+ */
+public class DoricWebViewJSExecutor implements IDoricJSE {
+    private final WebView webView;
+
+    public class WebViewCallback {
+        @JavascriptInterface
+        public void callNative(int command, String arguments) {
+
+        }
+    }
+
+    @SuppressLint("JavascriptInterface")
+    public DoricWebViewJSExecutor(Context context) {
+        this.webView = new WebView(context.getApplicationContext());
+        this.webView.loadUrl("about:blank");
+        WebViewCallback webViewCallback = new WebViewCallback();
+        this.webView.addJavascriptInterface(webViewCallback, "callNative");
+    }
+
+    @Override
+    public String loadJS(String script, String source) {
+        this.webView.evaluateJavascript(script, null);
+        return script;
+    }
+
+    @Override
+    public JSDecoder evaluateJS(String script, String source, boolean hashKey) throws JSRuntimeException {
+        this.webView.evaluateJavascript(script, null);
+        return null;
+    }
+
+    @Override
+    public void injectGlobalJSFunction(String name, JavaFunction javaFunction) {
+
+    }
+
+    @Override
+    public void injectGlobalJSObject(String name, JavaValue javaValue) {
+
+    }
+
+    @Override
+    public JSDecoder invokeMethod(String objectName, String functionName, JavaValue[] javaValues, boolean hashKey) throws JSRuntimeException {
+        return null;
+    }
+
+    @Override
+    public void teardown() {
+    }
+}