背景：
我正在使用Xamarin.Forms创建一个内部移动应用程序，通过网络链接分发。我已经让Android和iOS启动并运行了几天，但是请求是针对推送通知的。我们决定与Pushwoosh一起提供这项服务。
我已经从pushwoosh复制了示例代码，并使用我们的软件包名称和密钥对其进行了修改，但由于某种原因，我收到错误：
The application could not be started. Ensure that the application has been installed to the target device and has a launchable activity (MainLauncher = true).
Additionally, check Build->Configuration Manager to ensure this project is set to Deploy for this configuration.
我还应该注意Pushwoosh使用GCM，所以它也可能与此有关。
我尝试过的事情：
1.我的第一步显然是检查配置管理器。它确实设置为Deploy，它被设置为编译x86（其他一些提到的其他问题的答案）
2.我确认我的MainActivity.cs文件中的活动是使用MainLauncher = true设置的indead
3.根据其他问题/答案的建议，我已从虚拟机器人中删除了该应用程序。 （实际上我完全重置了虚拟设备）。
4.如某些GCM特定QA中所述，我已将我的包名更改为全部小写。
我的相关代码：
[Activity(Label = "mobile", Icon = "@drawable/icon", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
[IntentFilter(new string[] { "company.MESSAGE" }, Categories = new string[] { "android.intent.category.DEFAULT" })]
public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsApplicationActivity
{
LocalMessageBroadcastReceiver mMessageReceiver;
LocalRegisterBroadcastReceiver mRegisterReceiver;
bool mBroadcastPush = true;
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
mMessageReceiver = new LocalMessageBroadcastReceiver();
mMessageReceiver.activity = this;
mRegisterReceiver = new LocalRegisterBroadcastReceiver();
mRegisterReceiver.activity = this;
registerReceivers();
PushManager manager = PushManager.GetInstance(this);
manager.OnStartup(this);
//Register for push!
manager.RegisterForPushNotifications();
checkMessage(Intent);
global::Xamarin.Forms.Forms.Init(this, bundle);
LoadApplication(new App());
}
protected override void OnNewIntent(Intent intent)
{
checkMessage(intent);
}
public void checkMessage(Intent intent)
{
if (null != intent)
{
if (intent.HasExtra(PushManager.PushReceiveEvent))
{
doOnMessageReceive(intent.Extras.GetString(PushManager.PushReceiveEvent));
}
else if (intent.HasExtra(PushManager.RegisterEvent))
{
doOnRegistered(intent.Extras.GetString(PushManager.RegisterEvent));
}
else if (intent.HasExtra(PushManager.UnregisterEvent))
{
doOnUnregisteredError(intent.Extras.GetString(PushManager.UnregisterEvent));
}
else if (intent.HasExtra(PushManager.RegisterErrorEvent))
{
doOnRegisteredError(intent.Extras.GetString(PushManager.RegisterErrorEvent));
}
else if (intent.HasExtra(PushManager.UnregisterErrorEvent))
{
doOnUnregistered(intent.Extras.GetString(PushManager.UnregisterErrorEvent));
}
resetIntentValues();
}
}
public void doOnRegistered(String registrationId)
{
// code to run if device has succesfully registered
}
public void doOnRegisteredError(String errorId)
{
// code to run if device failed to register
}
public void doOnUnregistered(String registrationId)
{
// code to run if device has succesfully unregistered
}
public void doOnUnregisteredError(String errorId)
{
// code to run if device failed to unregister properly
}
public void doOnMessageReceive(String message)
{
// code to run when device receives notification
}
private void resetIntentValues()
{
Intent mainAppIntent = Intent;
if (mainAppIntent.HasExtra(PushManager.PushReceiveEvent))
{
mainAppIntent.RemoveExtra(PushManager.PushReceiveEvent);
}
else if (mainAppIntent.HasExtra(PushManager.RegisterEvent))
{
mainAppIntent.RemoveExtra(PushManager.RegisterEvent);
}
else if (mainAppIntent.HasExtra(PushManager.UnregisterEvent))
{
mainAppIntent.RemoveExtra(PushManager.UnregisterEvent);
}
else if (mainAppIntent.HasExtra(PushManager.RegisterErrorEvent))
{
mainAppIntent.RemoveExtra(PushManager.RegisterErrorEvent);
}
else if (mainAppIntent.HasExtra(PushManager.UnregisterErrorEvent))
{
mainAppIntent.RemoveExtra(PushManager.UnregisterErrorEvent);
}
Intent = mainAppIntent;
}
protected override void OnResume()
{
base.OnResume();
registerReceivers();
}
protected override void OnPause()
{
base.OnPause();
unregisterReceivers();
}
public void registerReceivers()
{
IntentFilter intentFilter = new IntentFilter(PackageName + ".action.PUSH_MESSAGE_RECEIVE");
if (mBroadcastPush)
{
RegisterReceiver(mMessageReceiver, intentFilter);
}
RegisterReceiver(mRegisterReceiver, new IntentFilter(PackageName + "." + PushManager.RegisterBroadCastAction));
}
public void unregisterReceivers()
{
UnregisterReceiver(mMessageReceiver);
UnregisterReceiver(mRegisterReceiver);
}
}
1
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:installLocation="auto" package="com.company.mobile" android:versionCode="1" android:versionName="1.9.8">
<!--GCM for Pushwoosh-->
<permission android:name="PACKAGE_NAME.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="PACKAGE_NAME.permission.C2D_MESSAGE" />
<uses-sdk android:minSdkVersion="15" />
<application android:label="Company Mobile" android:icon="@drawable/icon">
<meta-data android:name="com.google.android.gms.version" android:value="XXXXXXXX" />
<meta-data android:name="PW_APPID" android:value="XXXXX-XXXXX" />
<meta-data android:name="PW_PROJECT_ID" android:value="XXXXXXX-XXXXXX-XXXXXXX" />
<!--GCM-->
<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" />
<category android:name="com.company.mobile" />
</intent-filter>
</receiver>
</application>
</manifest>
我会承认我是Android开发的新手（但不是.net或C＃），所以这可能是相对明显的，但我不知所措。我已经查看了我能找到的与此相关的每个问题，但没有一个解决方案有帮助。谁能看到我做错了什么？
答案 0 :(得分：2)
我相信这两行：
<permission android:name="PACKAGE_NAME.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="PACKAGE_NAME.permission.C2D_MESSAGE" />
PACKAGE_NAME应更改为您的实际包名称，在您的情况下为com.company.mobile（package元素中的<manifest>属性）。
所以试试：
<permission android:name="com.company.mobile.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="com.company.mobile.permission.C2D_MESSAGE" />