带有swift的MFMessageComposeViewController中MessageComposeResult的条件 [英] Conditional for MessageComposeResult in MFMessageComposeViewController with swift

问题描述

我正在尝试实现MFMessageComposeViewControllerDelegate所需的方法

I am attempting to implement the MFMessageComposeViewControllerDelegate's required method

 func messageComposeViewController(controller: MFMessageComposeViewController, didFinishWithResult result: MessageComposeResult) {
    }

问题是我无法弄清楚如何将MessageComposeResult与其比较swift中的关联常量（MessageComposeResultCancelled，MessageComposeResultSent，MessageComposeResultFailed）。到目前为止，我已经尝试过：

The issue is that I can't figure out how to compare the MessageComposeResult with its associated constants in swift(MessageComposeResultCancelled, MessageComposeResultSent, MessageComposeResultFailed). So far I have tried:

result == MessageComposeResultCancelled

和

result == MessageComposeResult(0)

这两个都返回错误'MessageComposeResult'不能转换为MirrorDisposition。任何有关如何解决此错误的见解将不胜感激。

both of which return the error "'MessageComposeResult' is not convertible to MirrorDisposition". Any insight on how I can resolve this error would be greatly appreciated.

推荐答案

使用 .MessageComposeResultCancelled 或等价物，或许， result.value == MessageComposeResultCancelled

Use .MessageComposeResultCancelled or the equivalents or, perhaps, result.value == MessageComposeResultCancelled

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