A question, maybe a little naive...
If I start a 2 minute CountDownTimer in Activity onCreate() and close it with finish() when user clicks a button, does Android cancel it automatically?
Or do I need to explicitly call cancel() in onDestroy()?
You will have to explicitly call
Ondestroy. But better practice is to call
Since if you have paused your activity and you update any Ui elements inside
OnFinish of the countdown timer it may throw errors.