为什么我有这个 showAlert 错误？

Question

我需要屏蔽屏幕。我正在使用下一个功能：

override func shouldAutorotate() -> Bool {
    return false
}
override func supportedInterfaceOrientations() -> Int {
    return UIInterfaceOrientation.Portrait.rawValue
}

但问题是我有一个显示警报功能，

func showAlert(message: String) {
    self.viewUtils.hideActivityIndicator(self.view)
    let alertView = UIAlertController(title: "Oops", message: message, preferredStyle: UIAlertControllerStyle.Alert)
    alertView.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: nil))


    self.presentViewController(alertView, animated: true, completion: nil)
    //activity.hidden = true
}

当我调用它时，我看到了错误：

由于未捕获的异常而终止应用程序

'UIApplicationInvalidInterfaceOrientation'，原因：'支持的方向与应用程序没有共同的方向，并且[UIAlertController shouldAutorotate]返回YES'

Answer 1

参考以下链接，您可以在此基础上更改您的代码。提问前请先搜索。

1. iOS 8.3 supported orientations crashs

2. 'Supported orientations has no common orientation with the application, and shouldAutorotate is returning YES'

3. Supported orientations has no common orientation with the application, and shouldAutorotate is returning YES'

Answer 2

您的supportedInterfaceOrientations 方法实现看起来有问题。尝试将其更改为以下内容：

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.Portrait
}