Android通知会反复出现，而不是只出现一次

我设计了一个一天只能调用一次的服务，我在仪表板活动中调用它。若今天的日期和数据库中的任何日期匹配，服务会向我发送特定记录的通知，但问题是，只要我访问DashboardActivity，通知就会被触发，我只希望我的通知一天只出现一次。 以下是我的仪表板活动：

public class DashboardActivity extends AppCompatActivity {
Intent intent;
private Toolbar toolbar;
RecyclerView recyclerView;
RecyclerView.LayoutManager layoutManager;
RecyclerView.Adapter adapter;
private PendingIntent pendingIntent;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.dashboard_layout);
    initializeDashboardActivityViews();
    runBackgroundServiceForDeliveryNotification();
    if (isMyServiceRunning(MyAlarmService.class)) {
        Log.e("NotificationService", "Already Running");
    } else {
        Log.e("NotificationService", "started Again...");
        runBackgroundServiceForDeliveryNotification();
    }

}

@Override
protected void onRestart() {
    super.onRestart();
    initializeDashboardActivityViews();
}

private boolean isMyServiceRunning(Class<?> serviceClass) {
    ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
    for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
        if (serviceClass.getName().equals(service.service.getClassName())) {
            return true;
        }
    }
    return false;
}

private void initializeDashboardActivityViews() {
    toolbar = (Toolbar) findViewById(R.id.dashboard_layout_toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    recyclerView = (RecyclerView) findViewById(R.id.recycler_view_dashboard);
    layoutManager = new LinearLayoutManager(this);
    recyclerView.setLayoutManager(layoutManager);
    adapter = new DashboardAdapter(DashboardActivity.this, "fertigo_pro_regular.ttf");
    recyclerView.setAdapter(adapter);
}

private void runBackgroundServiceForDeliveryNotification() {
    Log.v("TAG", "Call To RunbackgroundService");
    Calendar calendar = Calendar.getInstance();

    calendar.set(Calendar.MONTH, 6);
    calendar.set(Calendar.YEAR, 2013);
    calendar.set(Calendar.DAY_OF_MONTH, 13);

    calendar.set(Calendar.HOUR_OF_DAY, 06);
    calendar.set(Calendar.MINUTE, 00);
    calendar.set(Calendar.SECOND, 00);
    calendar.set(Calendar.AM_PM, Calendar.PM);
    Intent myIntent = new Intent(DashboardActivity.this, MyReceiver.class);
    pendingIntent = PendingIntent.getBroadcast(DashboardActivity.this, 0, myIntent, 0);
    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    //alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,  AlarmManager.INTERVAL_DAY , pendingIntent);
    alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);

}

} MyAlarmService

public class MyAlarmService extends Service {
DbOperation dbOperation;
SQLiteDatabase sqLiteDatabase;
Cursor cursor;

//语境

@Nullable
@Override
public IBinder onBind(Intent intent) {
    Log.v("TAG","Call To OnBind service");
    return null;
}

@Override
public void onCreate() {
    // TODO Auto-generated method stub
    Log.v("TAG","Call To OnCreate service");
    super.onCreate();
}

@Override
public int onStartCommand(Intent intent,int flags, int startId) {

    Calendar calendar = Calendar.getInstance();
    Log.v("BackGround Service", "Start myalaramSevice");
    int day = calendar.get(java.util.Calendar.DAY_OF_MONTH);
    int month = calendar.get(java.util.Calendar.MONTH)+1;
    int year = calendar.get(java.util.Calendar.YEAR);
    dbOperation = new DbOperation(this);
    sqLiteDatabase = dbOperation.getReadableDatabase();
    cursor = dbOperation.getAdvanceBookingDeliveryDates(sqLiteDatabase);
    if (cursor.moveToFirst())
    {
        do{
            String getDate;
            getDate = cursor.getString(0);
            String[] parts = getDate.split("-");
            String part1 = parts[0];
            String part2 = parts[1];
            String part3 = parts[2];
            if (day == Integer.parseInt(part1) && month == Integer.parseInt(part2) && year == Integer.parseInt(part3))
            {
                Log.e("DATE MATCH","DTAE is match");
                displayDeliveryNotification();
            }
            else{
                Log.e("DATE MATCH","DTAE is not match");

            }

        }while (cursor.moveToNext());
    }
    else
    {
        Log.e("MyAlarmService","No notification");
    }

    Log.v("BackGround Service", "Start myalaramSevice");
    return super.onStartCommand(intent, flags, startId);
}

@Override
@Deprecated
public void onStart(Intent intent, int startId) {
    // TODO Auto-generated method stub
    super.onStart(intent, startId);


}

private void displayDeliveryNotification() {

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
            //.setSmallIcon(android.R.drawable.stat_notify_chat)
            .setSmallIcon(R.drawable.bricks)
            .setContentTitle("Delivery Notification!")
            .setContentText("We have some pending Delivery(s) today.")
            .setAutoCancel(true);
    Intent notificationIntent = new Intent(this, DeliveryNotificationActivity.class);
    TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
    stackBuilder.addParentStack(DeliveryNotificationActivity.class);
    stackBuilder.addNextIntent(notificationIntent);
    PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
    mBuilder.setContentIntent(pendingIntent);
    //AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
    //am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
    NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(0, mBuilder.build());
}

}

你的

---

始终从RunBackgroundServiceForDeliverNotification（）启动

我应该在哪里写下这样的意图？？你每次都需要它吗？我希望我的通知一天只显示一次。然后在数据库中添加一个标志，检查通知是否已显示一天，并在每次调用**displayDeliveryNotification（）时进行检查***谢谢你……你救了我

@Nullable
@Override
public IBinder onBind(Intent intent) {
    Log.v("TAG","Call To OnBind service");
    return null;
}

@Override
public void onCreate() {
    // TODO Auto-generated method stub
    Log.v("TAG","Call To OnCreate service");
    super.onCreate();
}

@Override
public int onStartCommand(Intent intent,int flags, int startId) {

    Calendar calendar = Calendar.getInstance();
    Log.v("BackGround Service", "Start myalaramSevice");
    int day = calendar.get(java.util.Calendar.DAY_OF_MONTH);
    int month = calendar.get(java.util.Calendar.MONTH)+1;
    int year = calendar.get(java.util.Calendar.YEAR);
    dbOperation = new DbOperation(this);
    sqLiteDatabase = dbOperation.getReadableDatabase();
    cursor = dbOperation.getAdvanceBookingDeliveryDates(sqLiteDatabase);
    if (cursor.moveToFirst())
    {
        do{
            String getDate;
            getDate = cursor.getString(0);
            String[] parts = getDate.split("-");
            String part1 = parts[0];
            String part2 = parts[1];
            String part3 = parts[2];
            if (day == Integer.parseInt(part1) && month == Integer.parseInt(part2) && year == Integer.parseInt(part3))
            {
                Log.e("DATE MATCH","DTAE is match");
                displayDeliveryNotification();
            }
            else{
                Log.e("DATE MATCH","DTAE is not match");

            }

        }while (cursor.moveToNext());
    }
    else
    {
        Log.e("MyAlarmService","No notification");
    }

    Log.v("BackGround Service", "Start myalaramSevice");
    return super.onStartCommand(intent, flags, startId);
}

@Override
@Deprecated
public void onStart(Intent intent, int startId) {
    // TODO Auto-generated method stub
    super.onStart(intent, startId);


}

private void displayDeliveryNotification() {

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
            //.setSmallIcon(android.R.drawable.stat_notify_chat)
            .setSmallIcon(R.drawable.bricks)
            .setContentTitle("Delivery Notification!")
            .setContentText("We have some pending Delivery(s) today.")
            .setAutoCancel(true);
    Intent notificationIntent = new Intent(this, DeliveryNotificationActivity.class);
    TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
    stackBuilder.addParentStack(DeliveryNotificationActivity.class);
    stackBuilder.addNextIntent(notificationIntent);
    PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
    mBuilder.setContentIntent(pendingIntent);
    //AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
    //am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
    NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(0, mBuilder.build());
}

}

Intent myIntent = new Intent(DashboardActivity.this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(DashboardActivity.this, 0, myIntent, 0);