Question

I am overwriting this function:

    @Override
    public boolean onKeyUp(int keyCode, KeyEvent event)

But is there a way to tell which Intent or screen the back button is about to take the user to?

Answer 1

You’d probably better off adding information into the intent that launched your current activity.

Activity A

    Intent lIntent = new Intent();
    lIntent.putExtra( EXTRAS_ACTIVITY_KEY, ACTIVITY_IDENTIFIER );
    startActivitiy...

Activity B

    public boolean onKeyUp(int keyCode, KeyEvent event){
           Intent lIntent = getIntent();
           if(lIntent.hasExtra(EXTRAS_ACTIVITY_KEY) &&
                   ACTIVITY_IDENTIFIER.equals(lIntent.getStringExtra(EXTRAS_ACTIVITY_KEY)){
                   // Great we know that it was a Activity A...
                   ... your code here....
           }