Stop everything in x seconds (running in background)

Hi,
I have an app playing sounds when app running in background (ios and android).

I'd like to force stop the sounds X minutes after the app enter background mode.

I have no control at all once the app enter the background mode. I'm not sure if this kind of action is doable...

Thanks!

 

You do have. There's checkbox for that called Run In Background in player settings: https://docs.unity3d.com/Manual/class-PlayerSettingsStandalone.html and a callback https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnApplicationPause.html
If the checkbox is checked, you may run coroutine from that callback in your MonoBehaviour or use Invoke with a delay.

 

Is this work for ios and android or only standalone platform?

I just tried :
void OnApplicationFocus(bool isFocus){
if(!isFocus) { //put app in background
StartCoroutine(ieStopSoundIn(10f));
}
}
IEnumerator ieStopSoundIn ( float f ) {
yield return new WaitForSeconds(f);
PauseSound();
}

But i don't think the coroutine work once the app is in background.

 

It should work similar for all platforms. Is the game object active?

 

Yes it is.
Does the code above should work?

 

https://docs.unity3d.com/ScriptReference/Application-runInBackground.html

Note that Android and iOS ignore run in background.

 

So, is there a way to force stop the sounds X minutes after the app enter background mode? For ios and Android.

 

There is but it is outside of Unity in the sense that it is either a native ObjectionableC plugin for iOS or a Java call for Android.

Both of those things are usable inside of Unity with standard C# interop, but are technically outside of Unity.

In addition to having the correct native code snippets above, each platform (iOS and/or Android) requires you to assert either entitlements or permissions to continue running in the background, and further will require an additional review from Apple or Google, including (possibly) an explanation of why your app needs this and why it can't be done another way.

Here's the iOS page: https://developer.apple.com/library.../BackgroundExecution/BackgroundExecution.html

Here's the Android page on it: https://developer.android.com/guide/background/

Good luck!