How to close Android application?

Question

I want to close my application, so that it no longer runs in the background.

How to do that? Is this good practice on Android platform?

If I rely on the \"ba

Answer 1

none of all above answers working good on my app

here is my working code

on your exit button:

Intent intent = new Intent(getApplicationContext(), MainActivity.class);
ComponentName cn = intent.getComponent();
Intent mainIntent = IntentCompat.makeRestartActivityTask(cn);
mainIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
mainIntent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
mainIntent.putExtra("close", true);
startActivity(mainIntent);
finish();

that code is to close any other activity and bring MainActivity on top now on your MainActivity:

if( getIntent().getBooleanExtra("close", false)){
    finish();
}