moveTaskToBack(true) returns false always

Question

I know this has been asked earlier here & here too.They are not answered properly (or not answered at all).But,i don\'t know why moveTaskToBack(true); alway

Answer 1

I came into the similar problem(a child Activity included in a tabActivity), when you call moveTaskToBack(true) in the child activity, it doesn't work, whereas it works in the parent activity. You can call moveTaskToBack(true) in child activity like this: ChildActivity.this.getParent().moveTaskToBack(true)

Answer 2

Just write:

@Override
public void onBackPressed() {
    moveTaskToBack(true);
    //  super.onBackPressed();
}

Answer 3

I don't know why moveTaskToBack(true) is returning false for you. Perhaps there's something weird in your manifest? At any rate, you can do this instead to bring up the home screen:

Intent i = new Intent();
i.setAction(Intent.ACTION_MAIN);
i.addCategory(Intent.CATEGORY_HOME);
this.startActivity(i);

However, be aware of this message:

"You cannot simulate a press on the Home key." — Roman Guy, Android framework engineer

I'm not sure how that squares with my suggested code (which I found on the same thread as Roman's statement and seems to work).