为什么我不能注册我的Android设备？ xam.pushnotification

Question

我在我的xamarin.forms项目中使用xam.plugin.pushnotification

我的主要活动

protected override void OnCreate(Bundle bundle)
    {
        TabLayoutResource = Resource.Layout.Tabbar;
        ToolbarResource = Resource.Layout.Toolbar;

        base.OnCreate(bundle);

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

        //inicializa imageCircle
        ImageCircleRenderer.Init();

        //inicializa o mapa
        global::Xamarin.FormsMaps.Init(this, bundle);

        //shared Preferences
        App.Init(new AndroidUserPreferences());

        //Gerenciador de memória
        CachedImageRenderer.Init();

        try
        {
            AppContext = this.ApplicationContext;
            CrossPushNotification.Initialize<CrossPushNotificationListener>("my sender");
            StartPushService();
        }
        catch (Exception e)
        {
            var s = e.Message;
        }

        AndroidUserPreferences sharedPref = new AndroidUserPreferences();
        if ( sharedPref.GetString("token") == " ")
        {
            GetTokenTask myTask = new GetTokenTask();
            myTask.Execute(this);
        }

        LoadApplication(new App());
    }

    public static void StartPushService()
    {
        AppContext.StartService(new Intent(AppContext, typeof(PushNotificationService)));

        if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Kitkat)
        {

            PendingIntent pintent = PendingIntent.GetService(AppContext, 0, new Intent(AppContext, typeof(PushNotificationService)), 0);
            AlarmManager alarm = (AlarmManager)AppContext.GetSystemService(Context.AlarmService);
            alarm.Cancel(pintent);
        }
    }

    public static void StopPushService()
    {
        AppContext.StopService(new Intent(AppContext, typeof(PushNotificationService)));
        if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Kitkat)
        {
            PendingIntent pintent = PendingIntent.GetService(AppContext, 0, new Intent(AppContext, typeof(PushNotificationService)), 0);
            AlarmManager alarm = (AlarmManager)AppContext.GetSystemService(Context.AlarmService);
            alarm.Cancel(pintent);
        }
    }

我的听众在我的pcl中

public class  CrossPushNotificationListener : IPushNotificationListener
{

    public void OnMessage(JObject values, DeviceType deviceType)
    {
        Debug.WriteLine("Message Arrived");
    }

    public void OnRegistered(string token, DeviceType deviceType)
    {
        Debug.WriteLine(string.Format("Push Notification - Device Registered - Token : {0}", token));
    }

    public void OnUnregistered(DeviceType deviceType)
    {
        Debug.WriteLine("Push Notification - Device Unnregistered");

    }

    public void OnError(string message, DeviceType deviceType)
    {
        Debug.WriteLine(string.Format("Push notification error - {0}",message));
    }

    public bool ShouldShowNotification()
    {
        return true;
    }
}

}

在app.cs（PCL）中注册（尝试LOL）

 public App()
    {
        InitializeComponent();

        CrossPushNotification.Current.Register();
        MainPage = new NavigationPage(new Views.Splash2());
    }

我使用包名在firebase中注册了我的项目，然后我在那里创建了一个项目，并获得了发件人ID ...但是......在调用“cross ... current.register（）”之后的某个地方（它没有显示）我在哪里），我有一个例外

FATAL UNHANDLED EXCEPTION：System.TypeLoadException：无法使用标记0100005a解析类型（来自typeref，类/程序集Android.Gms.Gcm.Iid.InstanceID，Xamarin.GooglePlayServices.Gcm，Version = 1.0.0.0，Culture = neutral，PublicKeyToken =空值）

我需要在我的pcl项目中安装xamarin.gcm吗？现在它只在我的android项目中

Answer 1

尝试将CrossPushNotification.Current.Register ();调用为OnCreate方法。像这样：

protected override void OnCreate(Bundle bundle)
{
    TabLayoutResource = Resource.Layout.Tabbar;
    ToolbarResource = Resource.Layout.Toolbar;

    base.OnCreate(bundle);

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

    //inicializa imageCircle
    ImageCircleRenderer.Init();

    //inicializa o mapa
    global::Xamarin.FormsMaps.Init(this, bundle);

    //shared Preferences
    App.Init(new AndroidUserPreferences());

    //Gerenciador de memória
    CachedImageRenderer.Init();

    try
    {
        AppContext = this.ApplicationContext;
        CrossPushNotification.Initialize<CrossPushNotificationListener>("my sender");
        //call register method here
        CrossPushNotification.Current.Register();
        StartPushService();
    }
    catch (Exception e)
    {
        var s = e.Message;
    }

    AndroidUserPreferences sharedPref = new AndroidUserPreferences();
    if ( sharedPref.GetString("token") == " ")
    {
        GetTokenTask myTask = new GetTokenTask();
        myTask.Execute(this);
    }

    LoadApplication(new App());
}

Answer 2

我不得不迁移到1.2.5-beta，它确实有效，但插件最近宣布为DEPRECATED。 这是个坏消息。

为了支持monoandroid80，我不得不分叉xam.plugin.pushnotification并手动更新其packages.config。

很快就会有其他选择，只能迁移。