Question

我遵循AWS Mobile Hub推送集成指南，并在我的应用中集成了AWS SNS推送服务。当我打开应用程序时，我收到此错误日志：

if name == None:
    result = Product.objects.all()
else:
    result = Product.objects.filter(name = name)

应用程序中提到的代码行是那些行：
PushManager.java:264（整个方法）

android:layout_columnWeight="1"
android:layout_rowWeight="1"

MainActivity.java:50

E/AndroidRuntime: FATAL EXCEPTION: main
                                                             Process: com.intap.appme, PID: 23576
                                                             java.lang.RuntimeException: Unable to start activity ComponentInfo{com.intap.name/com.intap.name.MainActivity}: com.amazonaws.AmazonServiceException: 1 validation error detected: Value null at 'token' failed to satisfy constraint: Member must not be null (Service: AmazonSNS; Status Code: 400; Error Code: ValidationError; Request ID: 21d6a3b2-0459-513a-bf7a-f3c1d99d41ac)
                                                                 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3253)
                                                                 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
                                                                 at android.app.ActivityThread.access$1100(ActivityThread.java:221)
                                                                 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
                                                                 at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                 at android.os.Looper.loop(Looper.java:158)
                                                                 at android.app.ActivityThread.main(ActivityThread.java:7224)
                                                                 at java.lang.reflect.Method.invoke(Native Method)
                                                                 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
                                                                 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
                                                              Caused by: com.amazonaws.AmazonServiceException: 1 validation error detected: Value null at 'token' failed to satisfy constraint: Member must not be null (Service: AmazonSNS; Status Code: 400; Error Code: ValidationError; Request ID: 21d6a3b2-0459-513a-bf7a-f3c1d99d41ac)
                                                                 at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:712)
                                                                 at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:388)
                                                                 at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:199)
                                                                 at com.amazonaws.services.sns.AmazonSNSClient.invoke(AmazonSNSClient.java:2262)
                                                                 at com.amazonaws.services.sns.AmazonSNSClient.createPlatformEndpoint(AmazonSNSClient.java:447)
                                                                 at com.amazonaws.mobile.push.PushManager.subscribeToTopic(PushManager.java:264)
                                                                 at com.intap.name.MainActivity.onCreate(MainActivity.java:50)
                                                                 at android.app.Activity.performCreate(Activity.java:6876)
                                                                 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
                                                                 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3206)
                                                                 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349) 
                                                                 at android.app.ActivityThread.access$1100(ActivityThread.java:221) 
                                                                 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 
                                                                 at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                 at android.os.Looper.loop(Looper.java:158) 
                                                                 at android.app.ActivityThread.main(ActivityThread.java:7224) 
                                                                 at java.lang.reflect.Method.invoke(Native Method) 
                                                                 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) 
                                                                 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

当我尝试通过在线Firebase控制台发送推送消息时，设备会收到推送消息，当我点击消息打开应用时，它会一直崩溃。

当我尝试通过在线SNS控制台发送推送消息时，我没有得到任何推送通知，这意味着错误是在向SNS注册时。

我该如何解决？我根本不知道......

Answer 1

该令牌将从Google的SDK中返回null。原因在于这一行：

endpointRequest.setToken(InstanceID.getInstance(context)
    .getToken(sharedPreferences.getString("deviceToken", ""),
       GoogleCloudMessaging.INSTANCE_ID_SCOPE));

getToken（）的第一个参数应该是GCM发件人ID，而不是从sharedPreferences中提取的设备令牌。更改代码以传递发件人ID，如下所示，应解决问题：

endpointRequest.setToken(InstanceID.getInstance(context)
    .getToken(gcmSenderID, GoogleCloudMessaging.INSTANCE_ID_SCOPE));

此外，您粘贴的代码似乎是在相当遥远的过去生成的Mobile Hub项目中修改的。从那时起，PushManager就有了改进。 Mobile Hub生成的最新版本将使用GCMTokenHelper类，该类在您粘贴的代码中不存在。请尝试再次使用移动中心生成示例应用或SDK，并更新您的应用以使用最近生成的代码，如果您仍遇到问题则报告回来。

Android应用上的FCM + SNS令牌出错

1 个答案: