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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