如何处理推送通知动作点击？

Question

我有一个包含 2 个操作（接受、拒绝）的推送通知。如何确定实际点击了哪个操作，然后让通知消失（就像用户点击了实际通知而不是操作按钮一样）？看起来两个动作点击都进入了我的 OnNewIntent 方法，我想根据哪个被点击来执行不同的操作。除了不再显示操作（按钮）之外，我的通知也仍然显示在通知栏中。当我点击它时，通知会完全消失。

这是我在 FirebaseService 中的 SendLocalNotification 方法（忽略 cmets。它们是给我的）：

void SendLocalNotification(string body)
    {
        var intent = new Intent(this, typeof(MainActivity));
        intent.AddFlags(ActivityFlags.SingleTop);
        intent.PutExtra("OpenPage", "SomePage");
        //intent.PutExtra("message", body);

        //Unique request code to avoid PendingIntent collision.
        var requestCode = new Random().Next();
        var pendingIntent = PendingIntent.GetActivity(this, requestCode, intent, PendingIntentFlags.OneShot);

        var notificationBuilder = new NotificationCompat.Builder(this)
            .AddAction(0, "Accept", pendingIntent) // THIS ADDS A BUTTON TO THE NOTIFICATION
            .AddAction(0, "Decline", pendingIntent) // THIS ADDS A BUTTON TO THE NOTIFICATION
            .SetContentTitle("Load Match")
            .SetSmallIcon(Resource.Drawable.laundry_basket_icon_15875)
            .SetContentText(body)
            .SetAutoCancel(true)
            .SetShowWhen(false)
            .SetContentIntent(pendingIntent);

        if (Build.VERSION.SdkInt >= BuildVersionCodes.O)
        {
            notificationBuilder.SetChannelId(AppConstants.NotificationChannelName);
        }

        var notificationManager = NotificationManager.FromContext(this);
        notificationManager.Notify(0, notificationBuilder.Build());
    }

然后我在 MainActivity 中的 OnNewIntent：

protected override void OnNewIntent(Intent intent)
    {
        if (intent.HasExtra("OpenPage"))
        {
            MessagingCenter.Send(Xamarin.Forms.Application.Current, "Notification");
        }

        base.OnNewIntent(intent);
    }

编辑：我的 OnNewIntent 目前具有该逻辑，因为我正在使用 MessagingCenter 向视图模型上的订阅者发送消息并进行视图导航。然后我发现了 Actions，这就是我最终在这里尝试使用通知按钮执行该逻辑的方式。

Answer 1

使用“是”、“否”和“可能”操作创建通知：

//Yes intent
Intent yesReceive = new Intent();  
yesReceive.setAction(YES_ACTION);
PendingIntent pendingIntentYes = PendingIntent.getBroadcast(this, 12345, yesReceive, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.addAction(R.drawable.calendar_v, "Yes", pendingIntentYes);

//Maybe intent
Intent maybeReceive = new Intent();  
maybeReceive.setAction(MAYBE_ACTION);
PendingIntent pendingIntentMaybe = PendingIntent.getBroadcast(this, 12345, maybeReceive, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.addAction(R.drawable.calendar_question, "Partly", pendingIntentMaybe);

//No intent
Intent noReceive = new Intent();  
noReceive.setAction(NO_ACTION);
PendingIntent pendingIntentNo = PendingIntent.getBroadcast(this, 12345, noReceive, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.addAction(R.drawable.calendar_x, "No", pendingIntentNo);

然后创建广播接收器以在点击操作时调用：

@Override
public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();

    if(YES_ACTION.equals(action)) {
        Log.v("shuffTest","Pressed YES");
    } else if(MAYBE_ACTION.equals(action)) {
        Log.v("shuffTest","Pressed NO");
    } else if(NO_ACTION.equals(action)) {
        Log.v("shuffTest","Pressed MAYBE");
    }
}

在发送操作时注意适当。

Answer 2

因此，通过遵循 Barel 回答的一些内容以及其他一些 SO 页面并将其拼凑起来，我能够弄清楚（我认为）我需要什么。

我确定我稍后会遇到一些需要进行的更改，但就目前而言，这让我可以进行 2 个操作（接受、拒绝），选择任一操作按钮，然后点击一些逻辑，我将在其中实现我想要对这两个操作执行的操作。

---

FirebaseService 类中的

SendLocalNotification 方法：

void SendLocalNotification(string body)
    {
        //Unique request code to avoid PendingIntent collision.
        var requestCode = new Random().Next();

        // accept
        var acceptIntent = new Intent(this, typeof(MainActivity));
        acceptIntent.SetAction("ACCEPT_ACTION");
        var pendingIntentAccept = PendingIntent.GetActivity(this, requestCode, acceptIntent, PendingIntentFlags.OneShot);

        // decline
        var declineIntent = new Intent(this, typeof(MainActivity));
        declineIntent.SetAction("DECLINE_ACTION");
        var pendingIntentDecline = PendingIntent.GetActivity(this, requestCode, declineIntent, PendingIntentFlags.OneShot);

        var notificationBuilder = new NotificationCompat.Builder(this)
            .AddAction(0, "Accept", pendingIntentAccept)
            .AddAction(0, "Decline", pendingIntentDecline)
            .SetContentTitle("Load Match")
            .SetSmallIcon(Resource.Drawable.laundry_basket_icon_15875)
            .SetContentText(body)
            .SetAutoCancel(true)
            .SetShowWhen(false)
            .SetContentIntent(pendingIntentAccept)
            .SetContentIntent(pendingIntentDecline);

        if (Build.VERSION.SdkInt >= BuildVersionCodes.O)
        {
            notificationBuilder.SetChannelId(AppConstants.NotificationChannelName);
        }

        var notificationManager = NotificationManager.FromContext(this);
        notificationManager.Notify(0, notificationBuilder.Build());
    }

然后我必须在 MainActivity 中更新我的 OnNewIntent 覆盖。注意manager.CancelAll()。单击操作后，我必须这样做才能真正从我的栏中删除通知：

protected override void OnNewIntent(Intent intent)
    {
        switch (intent.Action)
        {
            case "ACCEPT_ACTION":
                Console.WriteLine("hit accept action case.");
                break;
            case "DECLINE_ACTION":
                Console.WriteLine("hit decline action case.");
                break;
            default:
                Console.WriteLine("didn't hit either action.");
                break;
        }

        var manager = (NotificationManager)this.GetSystemService(Context.NotificationService);
        manager.CancelAll();
        base.OnNewIntent(intent);
    }