Stop using dummy component to trigger JS execution + RootActivity clean up

android/app/src/main/AndroidManifest.xml

@@ -2,8 +2,8 @@
     package="com.reactnativenavigation">
 
     <application>
-      <activity android:name="com.reactnativenavigation.activities.TabActivity" />
-      <activity android:name="com.reactnativenavigation.activities.SingleScreenActivity" />
+        <activity android:name="com.reactnativenavigation.activities.TabActivity" />
+        <activity android:name="com.reactnativenavigation.activities.SingleScreenActivity" />
     </application>
 
 </manifest>

android/app/src/main/java/com/reactnativenavigation/activities/RootActivity.java

@@ -1,53 +1,22 @@
 package com.reactnativenavigation.activities;
 
-import com.facebook.react.BuildConfig;
-import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.ReactRootView;
-import com.reactnativenavigation.R;
-import com.reactnativenavigation.core.RctManager;
 import com.reactnativenavigation.core.objects.Screen;
 
 /**
+ * This activity is used to start the JS execution where we load our actual app/screens (index.android.js)
+ * Triggering react context initialization execute global code before any {@link ReactRootView}
+ * are displayed.
+ * <p>Only your MainActivity or activities with {@code action.MAIN} and {@code category.LAUNCHER}
+ * should extend this activity.
  * Created by guyc on 13/04/16.
  */
 public class RootActivity extends BaseReactActivity {
 
-    /**
-     * Returns the name of the main component registered from JavaScript.
-     * This is used to schedule rendering of the component.
-     */
     @Override
-    protected String getMainComponentName() {
-        return "RootComponent";
-    }
-
-    @Override
-    protected ReactRootView createRootView() {
-        ReactRootView rootView = super.createRootView();
-        rootView.setId(R.id.react_root_view);
-        return rootView;
-    }
-
-    /**
-     * Returns whether dev mode should be enabled.
-     * This enables e.g. the dev menu.
-     */
-    @Override
-    protected boolean getUseDeveloperSupport() {
-        return BuildConfig.DEBUG;
-    }
-
-    @Override
-    protected ReactInstanceManager createReactInstanceManager() {
-        return getReactInstanceManager();
-    }
-
-    protected ReactInstanceManager getReactInstanceManager() {
-        RctManager rctManager = RctManager.getInstance();
-        if (!rctManager.isInitialized()) {
-            rctManager.init(this, getMainComponentName(), getPackages());
-        }
-        return rctManager.getReactInstanceManager();
+    protected void handleOnCreate() {
+        // Trigger react context initialization, global javascript code will now execute
+        getReactInstanceManager().createReactContextInBackground();
     }
 
     @Override
@@ -56,25 +25,24 @@ public class RootActivity extends BaseReactActivity {
         finish();
     }
 
+     // No need to implement stack interface since this activity is only used to start other
+    // activities such as TabActivity or SingleScreenActivity.
+    @Override
     public void push(Screen screen) {
-        //TODO
     }
 
     @Override
     public Screen pop(String navID) {
         return null;
-        //TODO
     }
 
     @Override
     public String getActiveNavigatorID() {
         return null;
-        //TODO
     }
 
     @Override
     public int getScreenStackSize() {
         return 0;
-        //TODO
     }
 }

src/platformSpecific.android.js

@@ -12,18 +12,6 @@ import {
 
 var resolveAssetSource = require('resolveAssetSource');
 
-AppRegistry.registerComponent('RootComponent', () => RootComponent);
-
-export default class RootComponent extends React.Component {
-  constructor(props) {
-    super(props);
-  }
-
-  render() {
-    return null;
-  }
-}
-
 function startSingleScreenApp(params) {
   let screen = params.screen;
   if (!screen.screen) {