iOS 推送通知适用于 iOS 8 但不适用于 iOS SDK 8.1 中的 iOS 7

Question

if([application respondsToSelector:@selector(registerUserNotificationSettings:)]) { 

         [self registerForiOS8PushSettings]; //for iOS8  

    } else {
//iOS7 or earlier

     [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];

    }

无法获取到 iOS7 设备的推送通知。 didRegisterForRemoteNotificatiosnWithDeviceToken 被调用，实际上消息已成功传递。在 iOS8 中运行良好。

Answer 1

在 iOS8 中，流程发生了变化。要让您的应用注册 iOS8 和早期版本，请执行以下操作:

-(void)registerAppForNotifications{

    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
    {
        [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
        [[UIApplication sharedApplication] registerForRemoteNotifications];
    }
    else
    {
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeNewsstandContentAvailability| UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
    }

}