Question

我使用pyplot类发布通知，并为其添加一个名为取消的操作按钮。我希望通过单击此操作按钮来解除通知。为此，我通过致电NotificationCompat.Builder上的Intent发送广播并将通知ID附加到putExtra(String, int)对象 Intent通过致电BroadcastReceiver收到通知ID，并通过致电getIntExtra(String, int)取消通知。

但是，每次尝试时，NotificationManagerCompat.cancel(id)收到的id的值为8.因此，我无法取消通知。

这是我的代码，它将动作按钮添加到通知中，

BroadcastReceiver

BroadcastReceiver类

 Intent cancelIntent = new Intent(this, NotificationActionReceiver.class);
 cancelIntent.putExtra(EXTRA_NOTIFICATION_ID, id);
 cancelIntent.setAction(ACTION_DISMISS);
 if (BuildConfig.DEBUG)
 Log.d(TAG, "Sent id: "+id);
 PendingIntent pendingCancelIntent = PendingIntent.getBroadcast(this, 0, cancelIntent, 0);
 builder.addAction(R.drawable.ic_dismiss, "Cancel", pendingCancelIntent);

log cat始终报告public class NotificationActionReceiver extends BroadcastReceiver { private final static String TAG = NotificationActionReceiver.class.getSimpleName(); @Override public void onReceive(Context context, Intent intent) { Log.d(TAG, "onReceive(), getAction == "+intent.getAction()); switch (intent.getAction()){ case MyActivity.ACTION_DISMISS: int id = intent.getIntExtra(MyActivity.EXTRA_NOTIFICATION_ID, -1); if (BuildConfig.DEBUG) Log.d(TAG, "Notification id received: "+id); NotificationManagerCompat managerCompat = NotificationManagerCompat.from(context); managerCompat.cancel(id); break; case ....: .... } } }获取通知ID的值为8

Answer 1

我正在做同样的事情，我得到了正确的输出：

ComponentName receiver = new ComponentName(context, AlarmReceiver.class);
        PackageManager pm = context.getPackageManager();

        pm.setComponentEnabledSetting(receiver,
                PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
                PackageManager.DONT_KILL_APP);

        Log.v(TAG," Notification id:" + model.getNotificationIdForLocalDB());

        Intent intent1 = new Intent(context, AlarmReceiver.class);
        intent1.putExtra("notification_id", model.getNotificationIdForLocalDB());
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, model.getNotificationIdForLocalDB(), intent1, PendingIntent.FLAG_UPDATE_CURRENT);

在BroadcastReceiver结束时：

if(intent != null){
            if(intent.getExtras() != null){
                notificationId = intent.getExtras().getInt("notification_id",0);
            }
        }

尝试将待定意图标记0更改为PendingIntent.FLAG_UPDATE_CURRENT

Intent.getIntExtra（）给出了意想不到的结果

1 个答案: