Layout restarts after device's rotation [duplicate]

Question

I did a simple application with 2 buttons (start and exit) and an empty TextView. If i push the start button, a TextView will be update. My problem is that if i rotate the device, my layout will restart (if start was pushed, the TextView will become empty again. Why?

Answer 1

It because activity recreate after screen rotate. Simple fix is adding android:id to your TextView at xml.

Answer 2

Android automatically destroys the activity and recreates it adapting it to the new orientation of the screen when the device is rotated.