title: how to return back to parent activity while pressing back button on chlild activity in TAB Application
body: <p>i have 4 tab with activity group..all tab contain list of item and on press of any item its discriptioo will be displayed in new activity..
  i m using activitygroup to embedded child activity in tab.and i m using replace contentview to change the activitygroup view.</p>
  
  <p>when i press back button i call finish() from child and i immediately get out of application..is there any way to return back to parent activity using activity group...??? </p>
  
  <p>i m using following code to chang activitygroup view..bt dont know how to come back to this activity..</p>
  
  <pre><code>public void replaceContentView(String id, Intent newIntent) 
  {
      View mview = getLocalActivityManager().startActivity(id,newIntent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT)).getDecorView(); 
      this.setContentView(mview);
  
  }  
  </code></pre>