Stop MediaPlayer service when app goes in Background

Question

I have a media player service that plays music in the background of my app throughout activities like :

public class Music extends Service {
MediaPlayer play         


        

Answer 1

Can be less boilerplate with LifecycleObserver:

class App : Application(), LifecycleObserver {

    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
    fun onAppInBackground() {
        sendStatus(0)
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_START)
    fun onAppInForeground() {
        sendStatus(1)
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    fun onAppDestroyed() {
        sendStatus(2)
    }

    private fun sendStatus(statusCounter: Int) {
        val intent = Intent("status")
        intent.putExtra("status", statusCounter)
        LocalBroadcastManager.getInstance(this).sendBroadcast(intent)
    }

    override fun onCreate() {
        super.onCreate()
        ProcessLifecycleOwner.get().lifecycle.addObserver(this)
    }
}

Add to build.gradle (app)

implementation "androidx.lifecycle:lifecycle-runtime:2.1.0"
implementation "androidx.lifecycle:lifecycle-extensions:2.1.0"
annotationProcessor "androidx.lifecycle:lifecycle-compiler:2.1.0"