<uses-permission android:name="android.permission.REORDER_TASKS"/>
@Override
protected void onPause() {
super.onPause();
ActivityManager activityManager = (ActivityManager) getApplicationContext()
.getSystemService(Context.ACTIVITY_SERVICE);
activityManager.moveTaskToFront(getTaskId(), 0);
Toast.makeText(this, "메뉴키 사용불가.", Toast.LENGTH_SHORT).show();
}