title: How to animate Activities of ActivityGroup
body: <p>I am using an ActivityGroup and want a slide_in_up transition while new activity is started.
  I am currently using <code>overridePendingTransition(...)</code> method but it has no effect on animation.</p>
  
  <p>Here is the snippet which I am using to launch the new Activity.</p>
  
  <pre><code>View view = MainGroup.group.getLocalActivityManager().startActivity(NewsFeedScreen.TAG, intent  
      .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
      .getDecorView();  
  
      MainGroup.group.replaceView(view, NewsFeedScreen.TAG);
      overridePendingTransition(R.anim.slide_in_up, 0);
  </code></pre>
  
  <p>here MainGroup is the ActivityGroup and NewsFeedScreen is the Activity I want to start with slide_in_up transition.</p>
  
  <p>I have searched a lot but didn't find any solution. If anyone has a solution of similar sort of problem guys please help.
  thanks</p>