Android : Pop to Root View

Many a times it is required that we jump back to the root activity. Something like popToRootViewController in IPhone world. For example I started activity A then B then C and from menu options I want to go to back to A. In this case instead of creating a new A activity, application design would need to pop out B and C and then refresh A with the new content.

To achieve this we can add a flag - FLAG_ACTIVITY_CLEAR_TOP  to the intent while trying to launch the activity.

Small code snippet to go to the home activity

 public static void goHome( Context ctx )  
 {  
   if ( ! ( ctx instanceof HomeActivity ) )  
   {  
     Intent intent = new Intent( ctx, HomeActivity.class );  
     intent.setFlags( Intent.FLAG_ACTIVITY_CLEAR_TOP );  
     ctx.startActivity( intent );  
   }  
 }