savedInstanceState is always null

Question

This is my savedInstaceState code:

@Override
public void onSaveInstanceState(Bundle savedInstanceState) 
{
    savedInstanceState.putStringArrayList(\"todo_a         


        

Answer 1

How do you test it?

Imo the best way to test it is using the "Don't keep activities"-flag in Settings > Developer Options. If you don't have Developer Options in Settings, see Enabling On-device Developer Options.

1. Open your activity
2. Long-press home
3. Go to another application
4. Long-press home
5. Go back to your application