Draw over other app - SYSTEM_ALERT_WINDOW

SYSTEM_ALERT_WINDOW

Every app that requests the SYSTEM_ALERT_WINDOW permission and that is installed through the Play Store
(version 6.0.5 or higher is required), will have granted the permission automatically.

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
        // Show alert dialog to the user saying a separate permission is needed
        // Launch the settings activity if the user prefers
        Intent myIntent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
        startActivity(myIntent);
}