Question

我的项目（在Xamarin.iOS中构建）使用UserNotifications。在iOS 8.0之后可以正常工作。但是，DidReceiveRemoteNotification方法未在收到通知时在同事的iPhone（iOS 8.4.1）上调用。我认为它与代码无关，也许我错过了一些操作，例如在iOS 9之前的Info.plist有什么建议吗？

UNUserNotificationCenter center = UNUserNotificationCenter.Current;
center.RequestAuthorization(UNAuthorizationOptions.Alert | UNAuthorizationOptions.Sound | UNAuthorizationOptions.Badge, (bool arg1, NSError arg2) =>
    {

    });

center.Delegate = new NotificationDelegate();

我在方法FinishedLaunching中注册了NotificationCenter。它在模拟器和某些iPhone（iOS10.3和iOS 12.0）中均可正常运行

Answer 1

尝试使用以下代码

if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
{
  UNUserNotificationCenter center = UNUserNotificationCenter.Current;
  center.RequestAuthorization(UNAuthorizationOptions.Alert | UNAuthorizationOptions.Sound | UNAuthorizationOptions.Badge, (bool arg1, NSError arg2) =>
  {

  });

  center.Delegate = new NotificationDelegate();
}

else if (UIDevice.CurrentDevice.CheckSystemVersion(8, 0))
{
  var settings = UIUserNotificationSettings.GetSettingsForTypes(UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound, new NSSet());
  UIApplication.SharedApplication.RegisterUserNotificationSettings(settings);
}

Xamarin.iOS：iOS 8中未调用didReceiveLocalNotification

1 个答案: