Resume Activity

Question

I have 3 activities let's say MainActivity, Activity 2, and Activity 3.

In the MainActivity I have a button (start/stop) when I click on this button an animation start but when I go to activity 2 or activity 3 and I comeback to MainActivity the animation stopped by itself.

But me I want that the animation of the MainActivity never stop until I click the button stop.

I tried this code in AndroidManifest.xml but it doesn't work.

android:launchMode="singleInstance"

Answer 1

If you go back from MainActivity then your Activity will be Destroyed if you do not fire an Intent in onbackPressed() regardless of launchMode . launchMode are instruction for how the activity should be launched. On stack pop it will destroy anyway. Read launchModes .

Solution:- Solution to your problem SharedPreference . Save the current state of animation and restart it with previous state when Activity relaunched.