如何使用从远程通知创建的本地通知激活活动

Question

我已经成功地创建了一个启动活动的本地通知，但是由于某种原因，当这个本地通知被创建时从远程通知的处理程序中当本地通知被启动时，活动没有启动被用户点击。似乎没有抛出任何错误或异常。

以下是创建本地通知的代码。注意我正在使用 Xamarin。 我想知道它是否可能与权限相关（远程通知处理程序可能无法创建启动活动的意图？）。

private void CreateNotification(string title, string desc) {
    var uiIntent = new Intent(this, typeof(ConversationActivity));

    var stackBuilder = TaskStackBuilder.Create(this);
    stackBuilder.AddParentStack(Java.Lang.Class.FromType(typeof(ConversationActivity)));
    stackBuilder.AddNextIntent(uiIntent);

    PendingIntent pendingIntent = stackBuilder.GetPendingIntent(0, (int)PendingIntentFlags.UpdateCurrent);

    var notification = new NotificationCompat.Builder(this)
        .SetAutoCancel(true) // Remove the notification once the user touches it
        .SetContentIntent(pendingIntent)
        .SetContentTitle(title)
        .SetSmallIcon(Resource.Drawable.AppIcon)
        .SetContentText(desc)
        .SetDefaults((int)(NotificationDefaults.Sound | NotificationDefaults.Vibrate))
        ;

    // Set the notification info
    // we use the pending intent, passing our ui intent over which will get called
    // when the notification is tapped.
    var notificationManager = GetSystemService(Context.NotificationService) as NotificationManager;
    notificationManager.Notify(1, notification.Build());
}

Answer 1

我仍然不确定我最初的尝试出了什么问题，但我确实发现我可以通过将 Intent 更改为使用组件名称而不是操作或活动类型来修复它：

    private void SendNotification() {
        var nMgr = (NotificationManager)this.GetSystemService(NotificationService);
        var notification = new Notification(Resource.Drawable.AppIcon, "Incoming Dart");
        var intent = new Intent();
        intent.SetComponent(new ComponentName(this, "dart.androidapp.ContactsActivity"));
        var pendingIntent = PendingIntent.GetActivity(this, 0, intent, 0);
        notification.SetLatestEventInfo(this, "You've got something to read", "You have received a message", pendingIntent);
        nMgr.Notify(0, notification);
    }

Answer 2

您也应该可以使用 typeof(...) 来调用它。您首先发布的代码与后者完全不同。试试这是否适合你：

private void SendNotification() 
{
    var nMgr = (NotificationManager)this.GetSystemService(NotificationService);
    var notification = new Notification(Resource.Drawable.AppIcon, "Incoming Dart");
    var intent = new Intent(this, typeof(ContactsActivity));
    //intent.SetComponent(new ComponentName(this, "dart.androidapp.ContactsActivity"));
    var pendingIntent = PendingIntent.GetActivity(this, 0, intent, 0);
    notification.SetLatestEventInfo(this, "You've got something to read", "You have received a message", pendingIntent);
    nMgr.Notify(0, notification);
}

Answer 3

你好 Andrew 对我来说工作正常

NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = new Notification(R.drawable.ic_launcher, "Hello Chitta!", System.currentTimeMillis());
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("message/rfc822");
        intent.putExtra(Intent.EXTRA_EMAIL  , new String[]{"jdsjdjbdf@gmail.com"});
        intent.putExtra(Intent.EXTRA_SUBJECT, "Hello CR!");
        intent.putExtra(Intent.EXTRA_TEXT   , "This is the body of email");

        PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, 0);
        notification.setLatestEventInfo(getApplicationContext(), "Send an e-mail", "Ha ha", pendingIntent);
        notificationManager.notify(742134, notification);

在谈论其他事情吗？