begin render

Android/app/src/main/java/com/github/penfeizhou/doricdemo/MainActivity.java

@@ -2,6 +2,7 @@ package com.github.penfeizhou.doricdemo;
 
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.widget.FrameLayout;
 
 import com.github.penfeizhou.doric.DoricContext;
 import com.github.penfeizhou.doric.utils.DoricUtils;
@@ -16,5 +17,6 @@ public class MainActivity extends AppCompatActivity {
         DoricContext doricContext = DoricContext.create(this, DoricUtils.readAssetFile("demo.js"), "demo");
         doricContext.callEntity("__init__", new JSONBuilder().put("width", 100).put("height", 100));
         doricContext.callEntity("log");
+        doricContext.getRootNode().setRootView((FrameLayout) findViewById(R.id.root));
     }
 }

Android/app/src/main/res/layout/activity_main.xml

@@ -15,4 +15,8 @@
         app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <FrameLayout
+        android:id="@+id/root"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"></FrameLayout>
 </android.support.constraint.ConstraintLayout>