无法初始化类型为UIRemote NotificationType的参数，其类型为int

Question

当我使用[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];注册远程推送通知时，出现错误，说cannot initialize a parameter of type 'UIRemoteNotificationType' with an rvalue of type 'int'，有人知道为什么吗？谢谢。

我的项目的环境：Xcode的4.2 +的iOS 5

Answer 1

你应该明确地投它UIRemoteNotificationType

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