| android Programming Glossary: startchildactivityUpdated - Android Facebook api 3.0 error: Cannot call LoginActivity with a null calling package http://stackoverflow.com/questions/14123580/updated-android-facebook-api-3-0-error-cannot-call-loginactivity-with-a-null  extends TabsGroupActivity @Override public void onCreate Bundle savedInstanceState super.onCreate savedInstanceState startChildActivity ShareActivity new Intent this ShareActivity.class  public class ShareActivity extends BaseActivity @Override public void.. ActivityThread.java 2796 ... 12 more Update 2 I looked through the code and found the implementation of startChildActivity public void startChildActivity String Id Intent intent Window window getLocalActivityManager .startActivity Id intent.addFlags.. 2796 ... 12 more Update 2 I looked through the code and found the implementation of startChildActivity public void startChildActivity String Id Intent intent Window window getLocalActivityManager .startActivity Id intent.addFlags Intent.FLAG_ACTIVITY_CLEAR_TOP.. 
 Accessing instance of the parent activity? http://stackoverflow.com/questions/4944651/accessing-instance-of-the-parent-activity  extends ActivityGroup @Override public void onCreate Bundle savedInstanceState super.onCreate savedInstanceState startChildActivity first new Intent this First.class public void startChildActivity Intent intent Window window getLocalActivityManager .startActivity.. savedInstanceState super.onCreate savedInstanceState startChildActivity first new Intent this First.class public void startChildActivity Intent intent Window window getLocalActivityManager .startActivity id intent if window null setContentView window.getDecorView.. 
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