// Clean fragments (only if the app is recreated (When user disable permission))
    FragmentManager fragmentManager = getSupportFragmentManager();
    if (fragmentManager.getBackStackEntryCount() > 0) {
        fragmentManager.popBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
    }

    // Remove previous fragments (case of the app was restarted after changed permission on android 6 and higher)
    List<Fragment> fragmentList = fragmentManager.getFragments();
    if (fragmentList != null) {
        for (Fragment fragment : fragmentList) {
            if (fragment != null) {
                fragmentManager.beginTransaction().remove(fragment).commit();
            }
        }
    }

if (!((MyApplication)ApplicationContext).IsInitialized)
{
    Intent intent = new Intent(Application.Context,typeof(StartupActivity));
    intent.SetFlags(ActivityFlags.NewTask);
    StartActivity(intent);
    Finish();
}

adb shell "ps | grep <com.yourpackage>" // get the app process id
adb shell run-as <com.yourpackage> kill <app-process-id>    // kill the app