If you want to perform any step before Activity
is going to become invisible.
Their are several choices here.
onDestroy() - for final cleanup.
isFinishing() - right after act.finish()
is called it will return true.
onStop() - when the Activity
is killed by framework process. (not destroyed)
onPause() - when the Activity
is covered by any other Activity
onBackPressed() - capturing the event of hardware Back key triggered by user.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…