ReactActivity extends FragmentActivity (#22662)

Summary:
In https://github.com/facebook/react-native/pull/20602, I tried to make ReactActivity to extend AppCompatActivity per Google recommendation. But import failed, now ReactActivity extends FragmentActivity which is a parent class of AppCompatActivity and step forward to extend AppCompatActivity.
Pull Request resolved: https://github.com/facebook/react-native/pull/22662

Reviewed By: mdvacca

Differential Revision: D13505140

Pulled By: hramos

fbshipit-source-id: d4edc8dc5c606c45811c1deddf5727a47ad484d8

ReactAndroid/src/main/java/com/facebook/react/ReactActivity.java

@@ -9,9 +9,9 @@ package com.facebook.react;
 
 import javax.annotation.Nullable;
 
-import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
 import android.view.KeyEvent;
 
 import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler;
@@ -21,7 +21,7 @@ import com.facebook.react.modules.core.PermissionListener;
 /**
  * Base Activity for React Native applications.
  */
-public abstract class ReactActivity extends Activity
+public abstract class ReactActivity extends FragmentActivity
     implements DefaultHardwareBackBtnHandler, PermissionAwareActivity {
 
   private final ReactActivityDelegate mDelegate;

ReactAndroid/src/main/java/com/facebook/react/ReactActivityDelegate.java

@@ -11,7 +11,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v4.app.FragmentActivity;
 import android.view.KeyEvent;
 
 import com.facebook.infer.annotation.Assertions;
@@ -30,7 +29,6 @@ import javax.annotation.Nullable;
 public class ReactActivityDelegate {
 
   private final @Nullable Activity mActivity;
-  private final @Nullable FragmentActivity mFragmentActivity;
   private final @Nullable String mMainComponentName;
 
   private @Nullable ReactRootView mReactRootView;
@@ -38,18 +36,15 @@ public class ReactActivityDelegate {
   private @Nullable PermissionListener mPermissionListener;
   private @Nullable Callback mPermissionsCallback;
 
+  @Deprecated
   public ReactActivityDelegate(Activity activity, @Nullable String mainComponentName) {
     mActivity = activity;
     mMainComponentName = mainComponentName;
-    mFragmentActivity = null;
   }
 
-  public ReactActivityDelegate(
-    FragmentActivity fragmentActivity,
-    @Nullable String mainComponentName) {
-    mFragmentActivity = fragmentActivity;
+  public ReactActivityDelegate(ReactActivity activity, @Nullable String mainComponentName) {
+    mActivity = activity;
     mMainComponentName = mainComponentName;
-    mActivity = null;
   }
 
   protected @Nullable Bundle getLaunchOptions() {
@@ -206,10 +201,7 @@ public class ReactActivityDelegate {
   }
 
   protected Context getContext() {
-    if (mActivity != null) {
-      return mActivity;
-    }
-    return Assertions.assertNotNull(mFragmentActivity);
+    return Assertions.assertNotNull(mActivity);
   }
 
   protected Activity getPlainActivity() {

ReactAndroid/src/main/java/com/facebook/react/ReactFragmentActivity.java

@@ -7,126 +7,11 @@
 
 package com.facebook.react;
 
-import javax.annotation.Nullable;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.v4.app.FragmentActivity;
-import android.view.KeyEvent;
-
-import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler;
-import com.facebook.react.modules.core.PermissionAwareActivity;
-import com.facebook.react.modules.core.PermissionListener;
-
 /**
  * @deprecated
- * ReactFragmentActivity will be removed in 0.57 release.
+ * ReactFragmentActivity will be removed in 0.59 release.
  * Use {@link ReactActivity} instead.
  */
 @Deprecated
-public abstract class ReactFragmentActivity extends FragmentActivity implements
-  DefaultHardwareBackBtnHandler, PermissionAwareActivity {
-
-  private final ReactActivityDelegate mDelegate;
-
-  protected ReactFragmentActivity() {
-    mDelegate = createReactActivityDelegate();
-  }
-
-  /**
-   * Returns the name of the main component registered from JavaScript.
-   * This is used to schedule rendering of the component.
-   * e.g. "MoviesApp"
-   */
-  protected @Nullable String getMainComponentName() {
-    return null;
-  }
-
-  /**
-   * Called at construction time, override if you have a custom delegate implementation.
-   */
-  protected ReactActivityDelegate createReactActivityDelegate() {
-    return new ReactActivityDelegate(this, getMainComponentName());
-  }
-
-  @Override
-  protected void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-    mDelegate.onCreate(savedInstanceState);
-  }
-
-  @Override
-  protected void onPause() {
-    super.onPause();
-    mDelegate.onPause();
-  }
-
-  @Override
-  protected void onResume() {
-    super.onResume();
-    mDelegate.onResume();
-  }
-
-  @Override
-  protected void onDestroy() {
-    super.onDestroy();
-    mDelegate.onDestroy();
-  }
-
-  @Override
-  public void onActivityResult(int requestCode, int resultCode, Intent data) {
-    mDelegate.onActivityResult(requestCode, resultCode, data);
-  }
-
-  @Override
-  public boolean onKeyUp(int keyCode, KeyEvent event) {
-    return mDelegate.onKeyUp(keyCode, event) || super.onKeyUp(keyCode, event);
-  }
-
-  @Override
-  public void onBackPressed() {
-    if (!mDelegate.onBackPressed()) {
-      super.onBackPressed();
-    }
-  }
-
-  @Override
-  public void invokeDefaultOnBackPressed() {
-    super.onBackPressed();
-  }
-
-  @Override
-  public void onNewIntent(Intent intent) {
-    if (!mDelegate.onNewIntent(intent)) {
-      super.onNewIntent(intent);
-    }
-  }
-
-  @Override
-  public void requestPermissions(
-    String[] permissions,
-    int requestCode,
-    PermissionListener listener) {
-    mDelegate.requestPermissions(permissions, requestCode, listener);
-  }
-
-  @Override
-  public void onRequestPermissionsResult(
-    int requestCode,
-    String[] permissions,
-    int[] grantResults) {
-    mDelegate.onRequestPermissionsResult(requestCode, permissions, grantResults);
-  }
-
-  protected final ReactNativeHost getReactNativeHost() {
-    return mDelegate.getReactNativeHost();
-  }
-
-  protected final ReactInstanceManager getReactInstanceManager() {
-    return mDelegate.getReactInstanceManager();
-  }
-
-  protected final void loadApp(String appKey) {
-    mDelegate.loadApp(appKey);
-  }
+public abstract class ReactFragmentActivity extends ReactActivity {
 }