来自非活动类的Android通知

Question

public class MyAlarmService extends Service{
    @Override
    public IBinder onBind(Intent arg0)
    {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void onCreate()
    {
        // TODO Auto-generated method stub
        super.onCreate();
    }

    @SuppressWarnings("static-access")
    @Override
    public void onStart(Intent intent, int startId)
    {
        super.onStart(intent, startId);

        String title = "title";
        String message = "message";

      new  MainActivity().Notify(title, message);
...

public class MainActivity extends Activity {
  NotificationManager manager;
    Notification myNotication;

  @Override

    protected void onCreate(Bundle savedInstanceState) {
        manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

...
 public void Notify(String notificationTitle, String notificationMessage){
        Intent intent = new Intent("com.xxxx.app.MainActivity");

        PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 1, intent, 0);

        Notification.Builder builder = new Notification.Builder(MainActivity.this);

        builder.setAutoCancel(false);
        builder.setTicker("this is ticker text");
        builder.setContentTitle("Notification");
        builder.setContentText("Text");
        builder.setSmallIcon(R.drawable.infoicon);
        builder.setContentIntent(pendingIntent);
        builder.setOngoing(true);
        builder.setSubText("This is subtext...");
        builder.setNumber(100);
        builder.build();
        myNotication = builder.getNotification();
        manager.notify(11, myNotication);
    }

...

但我收到一条错误消息：

Answer 1

您可以通过以下方式进行同样的操作：

1）将Notify方法复制到服务中，并在需要命令以触发通知任何地方调用它，notification service需要上下文活动或服务）

2）您可以通过广播接收器从服务与活动进行通信