onBackPressed() not working inside ActivityGroup

问题

I have an ActivityGroup inside of which I have an Activity. I have overrided the onBackPressed() in this Activity. But unfortunately my onBackPressed() is not being called. So I tried with onKeyDown(). But no effect at all. My problem is, the onBackPressed() event which I have given in the ActivityGroup takes control. How to override the Back Press event inside my sub Activity?

Any help is appreciated.

回答1:

I just had this same problem and I solved it by calling the current activity's onBackPressed from the ActivityGroup:

@Override
public void onBackPressed()
{
    int length = idList.size();
    if (length > 1)
    {
        Activity current = getLocalActivityManager().getActivity(
            idList.get(length - 1));
        current.onBackPressed();
    }
}

idList is a list of activities in the activity group.

来源：https://stackoverflow.com/questions/6289906/onbackpressed-not-working-inside-activitygroup