ios - UIDocumentInteractionController presentOpenInMenuFromRect

我有从UIAlertController内部调用的这段代码：

func createSomeFile() {

    var output = (some NSData to output to file)


    let fileName = NSTemporaryDirectory().stringByAppendingPathComponent("filename.ext")
    let url: NSURL! = NSURL(fileURLWithPath: fileName)

    var dataToWrite = output.dataUsingEncoding(NSUTF8StringEncoding)
    dataToWrite?.writeToFile(url.absoluteString!, atomically: true)

    documentController = UIDocumentInteractionController(URL: url)
    documentController.UTI = "com.someUTI"
    documentController.delegate = self

    documentController.presentOpenInMenuFromRect(CGRectZero, inView: self, animated: true)
}

最后一行在Xcode中引发错误：“无法使用类型为...的参数列表调用'presentOpenInMenuFromRect'”

documentController声明为类变量
var documentController = UIDocumentInteractionController()

请帮我解决这个问题。

最佳答案

您不能将self分配给应为UIView的参数（除非self是UIView的子类，但显然不是）

因此，请尝试以下操作：

documentController.presentOpenInMenuFromRect(CGRectZero, inView: self.view, animated: true)

关于ios - UIDocumentInteractionController presentOpenInMenuFromRect，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/31201355/