Question

我在一个应用程序中使用UILocalNotification，在iOS 7或更早版本中工作正常，但在iOS 8中，根本没有调用didReceiveLocalNotification。经过一些研究后我发现在iOS 8中我们必须使用handleActionWithIdentifier，所以我尝试了它，但是当LocalNotification运行时也没有调用这个void。这是我的代码：

我在didFinishLaunchingWithOptions中有这个代码，它运行正常，我第一次启动应用程序时，我被要求允许发送通知等。

if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)]){
    [application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}

然后我得到了：

    - (void)application:(UIApplication *)application  didRegisterUserNotificationSettings:(UIUserNotificationSettings  *)notificationSettings
  {
   //register to receive notifications
    [application registerForRemoteNotifications];
   }

  - (void)application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier forLocalNotification:(UILocalNotification *)notification
completionHandler:(void(^)())completionHandler
{
     NSLog(@"handleAction");
}


 -(void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken

{

 }

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification 
 {
      NSLog(@"didReceive");
 }

当localNotification运行时，我在屏幕上显示的消息上滑动手指没有任何反应...根本没有调用日志... 我还注意到，如果应用程序处于活动状态且正在运行，则当localNotification运行时，会调用方法didReceiveLocalNotification 谁知道我做错了什么？谢谢你的帮助

Answer 1

将此添加到您的didFinishLaunchingWithOptions:

if ([[UIApplication sharedApplication]respondsToSelector:@selector(isRegisteredForRemoteNotifications)])
{
    // iOS 8 Notifications
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];

    [[UIApplication sharedApplication] registerForRemoteNotifications];
}
else
{
    // iOS < 8 Notifications
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
}

您忘记添加此行： [[UIApplication sharedApplication] registerForRemoteNotifications];

Answer 2

根据window的Apple文档：

此方法的实现应执行与指定标识符关联的操作，并在完成后立即在completionHandler参数中执行该块。在实施结束时未能执行完成处理程序块将导致您的应用程序被终止。

上面的实现缺少完成处理程序块。

要使其有效，请将application:handleActionWithIdentifier:forLocalNotification:completionHandler:修改为如下：

application:handleActionWithIdentifier:forLocalNotification:completionHandler:

Answer 3

当用户在警报中点击远程或本地通知的自定义操作时，此方法会调用。

 - (void)application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier forLocalNotification:(UILocalNotification *)notification completionHandler:(void (^)())completionHandle 
{
//some action
}

当您在屏幕上滑动手指时称为此方法

-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
{

}

Answer 4

虽然我看到你正在处理“forRemoteNotification:”案件，我不认为这是在原始代码块中定义的：

application:handleActionWithIdentifier:forLocalNotification:completionHandler:

handleActionWithIdentifier不起作用

4 个答案: