我在Android应用程序中工作，我在使用带有MvvmCross的BroadcastReceiver时遇到了一些麻烦。我有广播来接收来自GCM（推送通知）的消息，然后创建一个IntentService，它会在收到消息时执行某些操作。
在我的IntentService中，我使用Mvx.Resolve来调用Core项目。由于应用程序未运行，因此会抛出一个未找到的异常（尝试使用Mvx.Resolve时）。
我尝试在网络上找到解决方案，我得到的最接近的是：How do I initialize the MvvmCross framework without a splash Activity?。
所以我尝试使用它，但我收到了另一个例外。
Android.Content.ReceiverCallNotAllowedException: Exception of type 'Android.Content.ReceiverCallNotAllowedException' was thrown
我在尝试在另一个接收器内创建接收器时发现这种情况。
我的广播如下（使用上面堆栈中的代码）：
[BroadcastReceiver(Permission= "com.google.android.c2dm.permission.SEND")]
[IntentFilter(new string[] { "com.google.android.c2dm.intent.RECEIVE" }, Categories = new string[] { "MyPackage" }, Priority = (int)IntentFilterPriority.HighPriority)]
[IntentFilter(new string[] { "com.google.android.c2dm.intent.REGISTRATION" }, Categories = new string[] { "MyPackage" }, Priority = (int)IntentFilterPriority.HighPriority)]
[IntentFilter(new string[] { "com.google.android.gcm.intent.RETRY" }, Categories = new string[] { "MyPackage" }, Priority = (int)IntentFilterPriority.HighPriority)]
public class GCMBroadcastReceiver : BroadcastReceiver
{
public override void OnReceive(Context context, Intent intent)
{
var setup = MvxAndroidSetupSingleton.EnsureSingletonAvailable(context);
setup.EnsureInitialized();
GCMIntentService.RunIntentInService(context, intent);
SetResult(Result.Ok, null, null);
}
}
我的IntentService：
[Service]
public class GCMIntentService : IntentService
{
static PowerManager.WakeLock sWakeLock;
static object LOCK = new object();
public static void RunIntentInService(Context context, Intent intent)
{
lock (LOCK)
{
if (sWakeLock == null)
{
// This is called from BroadcastReceiver, there is no init.
var pm = PowerManager.FromContext(context);
sWakeLock = pm.NewWakeLock(WakeLockFlags.Partial, "GCM Broadcast Receiver");
}
}
sWakeLock.Acquire();
intent.SetClass(context, typeof(GCMIntentService));
context.StartService(intent);
}
protected override void OnHandleIntent(Intent intent)
{
try
{
var context = this.ApplicationContext;
var action = intent.Action;
if (action.Equals("com.google.android.c2dm.intent.REGISTRATION"))
{
HandleRegistration(context, intent);
}
else if (action.Equals("com.google.android.c2dm.intent.RECEIVE"))
{
HandleMessage(context, intent);
}
}
finally
{
lock (LOCK)
{
//Sanity check for null as this is a public method
if(sWakeLock != null)
{
sWakeLock.Release();
}
}
}
}
private void HandleRegistration(Context context, Intent intent)
{
var registration = intent.GetStringExtra("registration_id");
if(intent.GetStringExtra("error") != null)
{
// Registration failed, should try again later.
}
else if(intent.GetStringExtra("unregistered") != null)
{
// Unregistered
}
else if(registration != null)
{
//Do registration
}
}
private void HandleMessage(Context context, Intent intent)
{
Task.Factory.StartNew(() =>
{
Mvx.Resolve<MyInterface>().DoSomething();
});
}
}
我读了相同的堆栈溢出，如果我只使用一个简单的Mvx.Resolve，那么我自己实例化它会更容易。问题是在我的方法“DoSomething”中它使用了更多的Mvx.Resolves而我不想因为Android而改变核心应用程序。
所以我想知道是否有任何方法可以启动框架，这样我就不必更改Core，或者处理这个问题的最佳方法是改变核心。
修改
异常跟踪是（我从logcat得到了这个，因为我无法调试未运行的应用程序）：
Android.Content.ReceiverCallNotAllowedException: Exception of type 'Android.Content.ReceiverCallNotAllowedException' was thrown.
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x00028>
at Android.Runtime.JNIEnv.CallObjectMethod (intptr,intptr,Android.Runtime.JValue[]) <0x000c3>
at Android.Content.ContextWrapper.RegisterReceiver (Android.Content.BroadcastReceiver,Android.Content.IntentFilter) <0x0018f>
at Thrust.Plugins.Network.Droid.NetworkService.OnNetworkChanged (System.Action`1<Thrust.Plugins.Network.NetworkStatus>) <0x00093>
at Chat.Core.App.Initialize () <0x00533>
at Cirrious.MvvmCross.Platform.MvxSetup.CreateAndInitializeApp (Cirrious.CrossCore.Plugins.IMvxPluginManager) <0x0005b>
at Cirrious.MvvmCross.Platform.MvxSetup.InitializeApp (Cirrious.CrossCore.Plugins.IMvxPluginManager) <0x00027>
at Cirrious.MvvmCross.Platform.MvxSetup.InitializeSecondary () <0x00133>
at Cirrious.MvvmCross.Platform.MvxSetup.Initialize () <0x0002b>
at Cirrious.MvvmCross.Droid.Platform.MvxAndroidSetupSingleton.EnsureInitialized () <0x0011b>
at Chat.Droid.GCM.GCMBroadcastReceiver.OnReceive (Android.Content.Context,Android.Content.Intent) <0x0002b>
at Android.Content.BroadcastReceiver.n_OnReceive_Landroid_content_Context_Landroid_content_Intent_ (intptr,intptr,intptr,intptr) <0x0007b>
at (wrapper dynamic-method) object.0daa077c-c2f5-4cd5-bcbc-bc391ce0b2c3 (intptr,intptr,intptr,intptr) <0x0004b>
--- End of managed exception stack trace ---
android.content.ReceiverCallNotAllowedException: BroadcastReceiver components are not allowed to register to receive intents
at android.app.ReceiverRestrictedContext.registerReceiver(ContextImpl.java:246)
at android.app.ReceiverRestrictedContext.registerReceiver(ContextImpl.java:235)
at chat.droid.gcm.GCMBroadcastReceiver.n_onReceive(Native Method)
at chat.droid.gcm.GCMBroadcastReceiver.onReceive(GCMBroadcastReceiver.java:28)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:2659)
at android.app.ActivityThread.access$1800(ActivityThread.java:174)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1383)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5593)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
[ERROR] FATAL UNHANDLED EXCEPTION: Android.Content.ReceiverCallNotAllowedException: Exception of type 'Android.Content.ReceiverCallNotAllowedException' was thrown.