Start and Stop an external app from my own app in Android

Question

My app starts others apps (upon user request) using this simple code:

Intent LaunchApp = getPackageManager().getLaunchIntentForPackage("the.external.app.package");                 
startActivity( LaunchApp );

Is there a way to finish or close that app?

I have tried with ActivityManager.killBackgroundProcesses() and with android.os.Process.sendSignal(pid, android.os.Process.SIGNAL_KILL) but no success.

The idea is to do something like this: If the app connects to the car bluetooth then it starts the music player automatically. Once the bluetooth is disconnected it should close the music player.

Thanks

Answer 1

You can close activity without killing process.

1. Use startActivityForResult() instead startActivity()

    startActivityForResult( LaunchApp, 100 );// reques code = 100 

2. Close activity by request code when you need that

    finishActivity( 100 );