Way to get current running foreground app/process

Question

I am curious if there is any way available in Android OS to tell the app that an application is just launched. Basically, in my app I want to notify my app that an application is going to be launched or just launched. On that event, I want to perform some operations like block that application if user(using my application) has included that in block list.Any help or direction will be highly appreciated..

Answer 1

first Add

  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (!Settings.System.canWrite(context)) {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS,
                            Uri.parse("package:" + getPackageName()));
                    startActivityForResult(intent, 200);
                }
            } else {
                //Do work
            }