AlarmService

public class AlarmService {
    private PendingIntent pendingIntent;
    private Context mContext;

    public AlarmService(Context context) {
        mContext = context;
        pendingIntent = PendingIntent.getBroadcast(context, 0, new Intent(context, AlarmReceiver.class), 0);
    }


    public void cancel() {
        if (mContext != null) {
            Object localObject = new Intent(mContext, AlarmReceiver.class);
            localObject = PendingIntent.getBroadcast(this.mContext, 0, (Intent)localObject, 0);
            ((AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE)).cancel((PendingIntent)localObject);
            Toast.makeText(mContext, "Đã tắt thông báo hàng ngày", Toast.LENGTH_SHORT).show();
        }else{
//            Toast.makeText(mContext, "Alarm can't cancel", Toast.LENGTH_SHORT).show();
        }
    }

    public void start() {
        AlarmManager manager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
        SharedPreferences shared = PreferenceManager.getDefaultSharedPreferences(mContext);
        shared.edit().putBoolean(SHARED_NOTI_DAILY, true).commit();
        Toast.makeText(mContext, "Đã bật thông báo hàng ngày", Toast.LENGTH_SHORT).show();
        int interval = 1000 * 60 * 1;

        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());

        int hous = shared.getInt(SHARED_NOTI_HOURSE, 7);
        int minute = shared.getInt(SHARED_NOTI_MINUTES, 0);
        calendar.set(Calendar.HOUR_OF_DAY, hous);
        calendar.set(Calendar.MINUTE, minute);
//        manager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
//                interval, pendingIntent);
        manager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), interval,pendingIntent);
    }
}