使用Xamarin和AWS SNS尝试使推送通知工作。它们在前几天一直很好用,但今天不行了。
我有一个Android设备和一个iOS设备。每当我更改应用程序中的任何内容时,另一个设备应该收到推送通知。iOS设备可以正常工作。
以下是Android订阅的C#代码:
在那里放置一些断点,我可以看到我的设备令牌确实与我正在尝试发送消息的AWS端点的令牌匹配。但是,由于某种原因,我不断收到来自AWS的错误消息。这是AWS发送给我的内容: {"DeliveryAttempts":1,"EndpointArn":"arn:aws:sns:...:endpoint/GCM/...","EventType":"DeliveryFailure","FailureMessage":"Platform token associated with the endpoint is not valid","FailureType":"InvalidPlatformToken","MessageId":"...","Resource":"arn:aws:sns:...:app/GCM/...","Service":"SNS","Time":"2016-03-28T18:22:59.360Z"} 如果我知道从应用程序返回的令牌与我的AWS端点的令牌匹配,那么可能是什么原因导致这种情况?
我有一个Android设备和一个iOS设备。每当我更改应用程序中的任何内容时,另一个设备应该收到推送通知。iOS设备可以正常工作。
以下是Android订阅的C#代码:
[Service(Exported = false)]
public class RegistrationIntentService : IntentService
{
static object locker = new object();
public RegistrationIntentService() : base("RegistrationIntentService") { }
protected override void OnHandleIntent(Intent intent)
{
try
{
Log.Info("RegistrationIntentService", "Calling InstanceID.GetToken");
lock (locker)
{
var instanceID = InstanceID.GetInstance(this);
var token = instanceID.GetToken(
"shhh it's a secret.", GoogleCloudMessaging.InstanceIdScope, null);
Log.Info("RegistrationIntentService", "GCM Registration Token: " + token);
SendRegistrationToAppServer(token);
Subscribe(token);
}
}
catch (Exception e)
{
Log.Debug("RegistrationIntentService", "Failed to get a registration token");
return;
}
}
void SendRegistrationToAppServer(string token)
{
// Add custom implementation here as needed.
//... handling my token on the back-end
}
void Subscribe(string token)
{
var pubSub = GcmPubSub.GetInstance(this);
pubSub.Subscribe(token, "/topics/global", null);
}
}
在那里放置一些断点,我可以看到我的设备令牌确实与我正在尝试发送消息的AWS端点的令牌匹配。但是,由于某种原因,我不断收到来自AWS的错误消息。这是AWS发送给我的内容: {"DeliveryAttempts":1,"EndpointArn":"arn:aws:sns:...:endpoint/GCM/...","EventType":"DeliveryFailure","FailureMessage":"Platform token associated with the endpoint is not valid","FailureType":"InvalidPlatformToken","MessageId":"...","Resource":"arn:aws:sns:...:app/GCM/...","Service":"SNS","Time":"2016-03-28T18:22:59.360Z"} 如果我知道从应用程序返回的令牌与我的AWS端点的令牌匹配,那么可能是什么原因导致这种情况?