Question

I have 3 Activities – A, B, and C.

In a nutshell, Activity A starts Activity B, then A also starts Activity C and expects a result from C, but never gets it.

Here is the application workflow:

1. Activity A is launched on app startup and starts Activity B (not for result, just startActivity()) in onCreate.

   public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       startActivity(new Intent(getApplicationContext(), ActivityB.class));
   }
   

2. Activity A then also starts Activity C later in code, this time for result using startActivityForResult(), and Activity A also has onActivityResult.

   Intent intent = new Intent(getApplicationContext(), ActivityC.class);
   startActivityForResult(intent, 0);
   

   and

   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
      ...
   }
   

3. Activity C uses setResult() and finish() to return some data, which should go back to Activity A, because Activity A called startActivityForResult().

   Intent intent = new Intent();
   intent.putExtra("encryption", encryption);
   setResult(56, intent);
   finish();
   

BUT the workflow falls silent at step 3 – Activity A’s onActivityResult is never called (neither is B’s for that matter), even though Activity A is the one starting C for result. Not sure if Activity B is getting in the way of A and C’s communication or what the problem could be. Any help is much appreciated.

Answer 1

I was never able to get this to work, so I ended up using a Handler instead to return the data to the necessary Activity.

UPDATE: After running into this again, I found out that the real reason this wasn’t working is because I had android:noHistory="true" for the calling/receiving Activity A in the manifest. Removing android:noHistory="true" fixed it, but if you need it to be true, then Handlers are a good workaround.