c# - 如何刷新一段时间后过期的 GCM 中的注册 token ？

Question

这是我在这里的第一个问题，如果我的问题中有什么不对，请提前道歉!

我目前在 MacBook 上的 Visual Studio 2013 中使用 Xamarin，我创建了一个 PCL 项目，并创建了使推送通知工作所需的所有内容iOS 和 Android。使用模拟器和真实设备，我可以通过服务器端程序实现这两者，我使用从客户端创建的设备 token 。几个小时内一切正常，但过了一会儿，两个 token 都过期了。我知道，因为这是我从服务器端给出的响应。

设备注册 ID 已过期:{e_bSR1SFBzg:APA91bHEQUEFvjn_mblu26MeKhAkcKRtXRLtaHOKYIsDTMDvJT3jmBDb4O6-hhu00ZhEcuAkpfaK-GKicbH1o5gtr3J9Sj9jyf-DVuikTd6DOBM0Tw70KFNVcLcL}

如果我从那个链接尝试 http://1-dot-sigma-freedom-752.appspot.com/gcmpusher.jsp

为了让它再次运行，我从设备和模拟器中删除了该应用程序，并在重新启动后创建了一个新的设备 token ，它运行了一段时间，但在几个小时后出现了同样的问题。我的疑问是关于

InstanceIDListenerService

可能没有正确配置的文件。下面是我的部分代码，所以如果有人可以给我任何建议，因为最近两天我一直面临这个问题，我不知道该怎么做。

我的 AndroidManifest.xml 文件:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="MY.PACKAGE.NAME" android:installLocation="auto" android:versionCode="1" android:versionName="1.0.0">
      <uses-sdk android:minSdkVersion="14" />
      <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
      <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
      <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
      <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
      <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
      <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
      <uses-permission android:name="android.permission.INTERNET" />
      <uses-permission android:name="android.permission.WAKE_LOCK" />
      <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
      <uses-permission android:name="MY.PACKAGE.NAME.permission.C2D_MESSAGE" />
      <permission android:name="MY.PACKAGE.NAME.permission.C2D_MESSAGE" android:protectionLevel="signature" />
      <!--<application android:label="TruckMe" android:icon="@drawable/ic_launcher">-->
      <application android:label="TruckMe" android:icon="@drawable/ic_launcher">
            <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="KEY_FOR-MAPS" />
            <receiver android:name="com.google.android.gms.gcm.GcmReceiver" android:exported="true" android:permission="com.google.android.c2dm.permission.SEND">
                  <intent-filter>
                        <action android:name="com.google.android.c2dm.intent.RECEIVE" />
                        <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
                        <category android:name="MY.PACKAGE.NAME" />
                  </intent-filter>
            </receiver>
      </application>
</manifest>

当然，我用那个词替换了我的真实包名称，Api_KEY 也用同样的东西替换。RegistrationIntentService.cs 文件:

using System;
using Android.App;
using Android.Content;
using Android.Util;
using Android.Gms.Gcm;
using Android.Gms.Gcm.Iid;


namespace TruckMe.Droid.Infrastructure.Notifications
{
    [Service(Exported = false)]
    public class RegistrationIntentService : IntentService
    {
        private const string SENDER_ID = "my_sender_num";
        static object locker = new object();

        public RegistrationIntentService() : base("RegistrationIntentService") { }

        protected override void OnHandleIntent(Intent intent)
        {
            try
            {
                Log.Info("RegistrationIntentService", "Calling InstanceID.GetToken");
                lock (locker)
                {
                    // Initially this call goes out to the network to retrieve the token, subsequent calls are local.
                    var instanceID = InstanceID.GetInstance(this);

                    // See https://developers.google.com/cloud-messaging/android/start for details on this file.
                    var token = instanceID.GetToken(SENDER_ID, GoogleCloudMessaging.InstanceIdScope, null);

                    //Log.Info("RegistrationIntentService", "GCM Registration Token: " + token);
                    Console.WriteLine("RegistrationIntentService - GCM Token: " + token);
                    SendRegistrationToAppServer(token);
                    Subscribe(token);
                    //unSubscribe(token);
                }
            }
            catch (Exception ex)
            {
                Log.Debug("RegistrationIntentService", "Failed to get a registration token. Ex: " + ex.Message);
                return;
            }
        }

        void SendRegistrationToAppServer(string token)
        {
            // Add custom implementation here as needed.
            //Console.WriteLine("RegistrationIntentService - GCM Token: " + token);

            // save the value to send it to our server to manage the notifications
            App.UserPreferences.SetString("DeviceToken", token);
        }

        void Subscribe(string token)
        {
            var pubSub = GcmPubSub.GetInstance(this);
            // subscribe to a topic group
            pubSub.Subscribe(token, "/topics/global", null); // working

        }

    }
}

然后是 InstanceIDListenerService 文件:

using Android.App;
using Android.Content;
using Android.Gms.Gcm.Iid;


namespace TruckMe.Droid.Infrastructure.Notifications
{
    [Service(Exported = false), IntentFilter(new[] { "com.google.android.gms.iid.InstanceID" })]
    public class MyInstanceIdListenerService : InstanceIDListenerService
    {
        /**
         * Called if InstanceID token is updated. This may occur if the security of the previous token had been compromised. 
         * This call is initiated by the InstanceID provider.
        */
        public override void OnTokenRefresh()
        {
            // Fetch updated Instance ID token and notify our app's server of any changes (if applicable).
            var intent = new Intent(this, typeof(RegistrationIntentService));
            StartService(intent);
        }
    }
}

让我知道理解和分析问题的代码是否足够，提前致谢

[编辑]我也忘了添加调用注册服务的“MainActivity”文件:

using System;
using Android.App;
using Android.Content;
using Android.Content.PM;
using Android.Gms.Common;
using Android.Graphics.Drawables;
using Android.Views;
using Android.OS;
using Xamarin;
using TruckMe.Droid.Infrastructure;
using TruckMe.Droid.Infrastructure.Notifications;


namespace TruckMe.Droid
{
    [Activity(Label = "TruckMe",
          MainLauncher = false,
          ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation,
          WindowSoftInputMode = SoftInput.AdjustPan)]
    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsApplicationActivity
    {

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            if (IsPlayServicesAvailable())
            {
                var intent = new Intent(this, typeof(RegistrationIntentService));
                StartService(intent);
            }

            global::Xamarin.Forms.Forms.Init(this, bundle);

            FormsMaps.Init(this, bundle);

            //Forms.SetTitleBarVisibility(AndroidTitleBarVisibility.Never);
            LoadApplication(new App());

            // below the code to remove the icon from android navigation bar
            ActionBar.SetIcon(new ColorDrawable(Android.Graphics.Color.Transparent)); 

            App.Init(new AndroidUserPreferences());
        }


        public bool IsPlayServicesAvailable()
        {
            int resultCode = GoogleApiAvailability.Instance.IsGooglePlayServicesAvailable(this);
            if (resultCode != ConnectionResult.Success)
            {
                if (GoogleApiAvailability.Instance.IsUserResolvableError(resultCode))
                    Console.WriteLine(GoogleApiAvailability.Instance.GetErrorString(resultCode));
                else
                {
                    Console.WriteLine("Sorry, this device is not supported");
                    Finish();
                }
                return false;
            }
            else
            {
                Console.WriteLine("Google Play Services is available.");
                return true;
            }
        }

    }
}

Answer 1

我意识到让 token 过期不是时间问题，而是当您构建解决方案并传输应用程序时，它会进行某种卸载(保留旧数据)，但如果应用程序已安装 GCM 不适用于“旧” token 。我清理了设备上的数据并在真实设备上下载了应用程序，在模拟器上做了同样的事情并发送了通知，两者都在工作。然后只需重新构建解决方案并仅在模拟器中下载；再次发送通知，但只有真实设备收到。

如果您正在调试并且不想每次都删除应用或数据，只需在下面调用注册服务的地方添加代码即可。

    var instanceID = InstanceID.GetInstance(this);

        // See https://developers.google.com/cloud-messaging/android/start for details on this file.
        var token = instanceID.GetToken(SENDER_ID, GoogleCloudMessaging.InstanceIdScope, null);

#if DEBUG
        instanceID.DeleteToken(token, GoogleCloudMessaging.InstanceIdScope);
        instanceID.DeleteInstanceID();
#endif

        token = instanceID.GetToken(SENDER_ID, GoogleCloudMessaging.InstanceIdScope, null);

这部分代码是从以下链接向我推荐的: fromXamarinForum