我正在使用GCM服务进行推送通知,当应用程序处于打开或后台状态时,它可以正常工作,但是当应用程序关闭时,它会崩溃:
异常信息:
FATAL EXCEPTION: main Process: br.com.siagri.SiagriAutorize, PID: 15786 android.runtime.JavaProxyThrowable: System.NotSupportedException: Could not activate JNI Handle 0xbeed8498 (key_handle 0xa7376b4) of Java type 'md5d8b390bb35897e87a51d1b4384dffa30/GcmService' as managed type 'SiagriAuth.Droid.Services.GcmService'. ---> System.InvalidOperationException: You MUST call Xamarin.Forms.Init(); prior to using it.
我按照这个 教程 进行操作,并查看了这个示例,但在应用程序关闭时没有发现任何关于/不同的通知工作方式。
这是我的接收和处理通知的方法:
private void CreateNotification(string title, string desc, string approvalCode)
{
try
{
//Create notification
var notificationManager = GetSystemService(NotificationService) as NotificationManager;
//Create an intent to show ui
var uiIntent = new Intent(this, typeof(MainActivity));
//Use Notification Builder
var builder = new NotificationCompat.Builder(this);
//Create the notification
//we use the pending intent, passing our ui intent over which will get called
//when the notification is tapped.
var notification = builder.SetContentIntent(PendingIntent.GetActivity(this, 0, uiIntent, 0))
.SetSmallIcon(Resource.Drawable.icon)
.SetTicker(title)
.SetContentTitle(title)
.SetContentText(desc)
.SetPriority((int)NotificationPriority.High)
.SetDefaults((int)NotificationDefaults.Sound | (int)NotificationDefaults.Vibrate)
//Set the notification sound
.SetSound(RingtoneManager.GetDefaultUri(RingtoneType.Notification))
//Auto cancel will remove the notification once the user touches it
.SetAutoCancel(true).Build();
//Show the notification
int uniqueIdentifier = 0;
for (int i = 0; i < approvalCode.Length; i++)
{
uniqueIdentifier += (int)approvalCode[i];
}
notificationManager?.Notify(uniqueIdentifier, notification);
}
catch (Exception e)
{
Debug.WriteLine(e);
App.LocalAlert("Erro", "Erro ao criar notificação.");
}
}
protected override void OnMessage(Context context, Intent intent)
{
try
{
if (intent != null && intent.Extras != null)
{
var messageText = intent.Extras.GetString("message");
var approvalCode = intent.Extras.GetString("ApprovalCode");
if (!string.IsNullOrEmpty(messageText) && !string.IsNullOrEmpty(approvalCode))
CreateNotification($"Solicitação - {approvalCode}", messageText, approvalCode);
}
}
catch (Exception e)
{
Debug.WriteLine(e);
App.LocalAlert("Erro", "Erro ao criar notificação.");
}
}
我正在使用以下汇编语言:
[assembly: Permission(Name = "myProject.permission.C2D_MESSAGE")]
[assembly: UsesPermission(Name = "myProject.permission.C2D_MESSAGE")]
[assembly: UsesPermission(Name = "com.google.android.c2dm.permission.RECEIVE")]
[assembly: UsesPermission(Name = "android.permission.INTERNET")]
[assembly: UsesPermission(Name = "android.permission.WAKE_LOCK")]
[assembly: UsesPermission(Name = "android.permission.GET_ACCOUNTS")]
这些是IntentFilter:
[BroadcastReceiver(Permission = Constants.PERMISSION_GCM_INTENTS)]
[IntentFilter(new[] { Constants.INTENT_FROM_GCM_MESSAGE }, Categories = new[] { "br.com.siagri.SiagriAutorize" })]
[IntentFilter(new[] { Constants.INTENT_FROM_GCM_REGISTRATION_CALLBACK }, Categories = new[] { "br.com.siagri.SiagriAutorize" })]
[IntentFilter(new[] { Constants.INTENT_FROM_GCM_LIBRARY_RETRY }, Categories = new[] { "br.com.siagri.SiagriAutorize" })]
有没有办法让这对于关闭的应用程序起作用?注意:我已经在发布模式下运行该应用程序。
logcat
以获取崩溃的详细信息,它是在本地通知创建期间还是用户点击通知时崩溃的? - SushiHangover