为什么我有这个showAlert错误？

Question

我需要屏蔽一个屏幕。即时通讯使用下一个功能：

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

但问题是我有一个节目提醒功能，

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
}

当我打电话给我时，我看到了错误：

由于未捕获的异常而终止应用

  

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

Answer 1

请参阅以下链接，根据此链接，您可以更改代码。请在提问之前进行搜索。

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方法实现看起来不对。尝试将其更改为以下内容：

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