Android通知出现在一遍又一遍，而不是只出现一次

Question

我设计了一个应该只在一天中被调用一次的服务，我从我的DashboardActivity调用它。如果今天的日期与数据库中的任何日期相匹配，该服务会向我发送特定记录的通知，但问题是一旦我访问DashboardActivity，通知就会被解雇，我只希望我的通知只出现一次天。 这里是我的DashboardActivity：

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); 

} 

} MyReceiver

public class MyReceiver extends BroadcastReceiver { 
@Override 
public void onReceive(Context context, Intent intent) { 
    Log.v("TAG","Call To MyReceiver"); 
    Intent service1 = new Intent(context, MyAlarmService.class); 
    context.startService(service1); 
} 

} MyAlarmService

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

//上下文的背景下;

@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()); 
} 

} 

Answer 1

你

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

总是从runBackgroundServiceForDeliveryNotification()射击。