instanceID.GetToken（）给出异常

以下代码为GCM获取令牌...给出例外。instanceID.GetToken（）给出异常

protected override void OnHandleIntent(Intent intent) 
{ 
    try 
    { 
     Log.Info("RegistrationIntentService", "Calling InstanceID.GetToken"); 
     lock (locker) 
     { 
      var instanceID = InstanceID.GetInstance(Application.Context); 


      var token = instanceID.GetToken(
       "<Project number>", GoogleCloudMessaging.InstanceIdScope, null);// exception occurred at this line 

      Log.Info("RegistrationIntentService", "GCM Registration Token: " + token); 
      SendRegistrationToAppServer(token); 
      Subscribe(token); 
     } 
    } 
    catch (Exception e) 
    { 
     Log.Debug("RegistrationIntentService", "Failed to get a registration token"); 
     return; 
    } 
}

异常

java.io.IOException的：在SERVICE_NOT_AVAILABLE System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（） [0x0000c]

全部异常

{Java.IO.IOException：SERVICE_NO T_AVAILABLE at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（） [0x0000c] /Users/builder/data/lanes/3053/a94a03b5/source/mono/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon .cs：143 at Android.Runtime.JNIEnv.CallObjectMethod（IntPtr jobject，IntPtr jmethod，Android.Runtime.JValue * parms）[0x00064] in /Users/builder/data/lanes/3053/a94a03b5/source/monodroid /src/Mono.Android/src/Runtime/JNIEnv.g.cs:195 at Android.Gms.Gcm.Iid.InstanceID.GetToken（System.String authorizedEntity，System.String scope，Android.OS.Bundle extras） [0x00096]：0在 LeaveApplication.Droid.RegistrationIntentService.OnHandleIntent （Android.Content.Intent intent）[0x0003a] D：\ Workspaces \ temp \ LeaveApplication \ LeaveApplication \ LeaveApplication \ LeaveApplication.Droid \ RegistrationIntentService.cs：36 ---管理的异常堆栈跟踪结束--- java .io.IOException：SERVICE_NOT_AVAILABLE at com.google.android.gms.iid.zzc.zzb（Unknown Source）at com.google.android.gms.iid.zzc.zza（Unknown Source）at com.google.android .gms.iid.InstanceID.zzc（来源不明）处 md54d5d90974a2844b8ac95dbb0c513d773.RegistrationIntentService.n_onHandleIntent（本地法） com.google.android.gms.iid.InstanceID.getToken（来源不明）在 md54d5d90974a2844b8ac95dbb0c513d773.RegistrationIntentService.onHandleIntent （RegistrationIntentService.java:36） at android.app.IntentService $ ServiceHandler.handleMessage（IntentService.java:65） at android.os.Handler.dispatchMessage（Handler.java:102）at android.os.Looper.loop（Looper.java:135 ）在 android.os.HandlerThread.run（HandlerThread.java:61）}

我的Android的manifest.xml

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.yourcompany.LeaveApplication" android:installLocation="auto" 
      android:versionCode="1" 
    android:versionName="1.0"> 
    <uses-sdk android:minSdkVersion="15" /> 
    <application android:label="XamarinLeaveApp"></application> 
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
    <uses-permission android:name="android.permission.WAKE_LOCK" /> 
    <uses-permission android:name="android.permission.INTERNET" /> 
    <uses-permission android:name="com.yourcompany.LeaveApplication.permission.C2D_MESSAGE" /> 
    <permission android:name="com.yourcompany.LeaveApplication.permission.C2D_MESSAGE" 
       android:protectionLevel="signature" /> 
    <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="com.yourcompany.LeaveApplication" /> 
    </intent-filter> 
    </receiver> 
</manifest>

来源

2016-05-30 sangram parmar