UIRemoteNotificationType无效转换 [英] UIRemoteNotificationType invalid conversion

问题描述

我想在我的应用程序中使用这个标准的代码行：

I'm trying to use this fairly standard line of code in my app:

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

但我收到以下错误：

error: invalid conversion from 'int' to 'UIRemoteNotificationType'

它的工作原理，如果我只使用一种通知类型，但每次失败，如果我尝试和使用多个。任何想法我做错了什么？

It works if I only use one of the notification types but fails every time if I try and use more than one. Any ideas what I'm doing wrong?

推荐答案

你可能使用Objective-C ++，

You're probably using Objective-C++, which implicit conversion from int to an enum is disallowed.

尝试添加一个显式的投射：

Try to add an explicit cast:

[… registerForRemoteNotificationTypes:
     (UIRemoteNotificationType)(UIRemoteNotificationTypeAlert | …)];

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