Back button on Android Phones

Question

A couple questions about the back button (as seen on the emulator)...

Do all Android phones have the back button as a hard, tactile button?
If so, is it still recommended to put a back button in your software?
Is it possible to change the animation between activities when this back button is pressed? I would like it to be consistent with the animations in my app.

for #3 see http://stackoverflow.com/questions/12047770/android-how-to-animate-an-activity-transition-when-the-default-back-button-is — tir38, Jul 13 '16 at 21:31

score 21 · Accepted Answer · edited Jul 01 '13 at 05:14

21

All Android phones have a dedicated BACK button. It is not always a "hard, tactile" button.
It is never recommended to put a BACK button in your software.
Reportedly, yes, but I do not have the answer handy, sorry.

edited Jul 01 '13 at 05:14

Evan Carroll

answered Jul 06 '10 at 23:42

CommonsWare

Thanks. That answers the first two. I've still not been able to figure out the last one. If anyone has some help there, it'd be great. – dfetter88 Jul 07 '10 at 00:55
Try http://developer.android.com/reference/android/app/Activity.html#overridePendingTransition(int, int) – stealthcopter Oct 10 '12 at 12:30
yes you change the animation of activity when you pressed back button in android – Ketan Mehta Jul 01 '13 at 05:37

score 1 · Answer 2 · answered Apr 08 '14 at 08:34

1

For 3: Yes.

@Override 
public void onBackPressed() {
    super.onBackPressed();
    overridePendingTransition(R.anim.zoom_enter, R.anim.zoom_exit);
}

answered Apr 08 '14 at 08:34

IliaEremin

2 Answers2