無法初始化類型爲UIRemote NotificationType的參數，其類型爲int

Question

當我使用[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];註冊遠程推送通知時，出現錯誤，說cannot initialize a parameter of type 'UIRemoteNotificationType' with an rvalue of type 'int'，有人知道爲什麼嗎？謝謝。

我的項目的環境：Xcode的4.2 +的iOS 5

Answer 1

你應該明確地投它UIRemoteNotificationType

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