UIAlertView和UIActionSheet在iOS 8中无法正常显示 [英] UIAlertView and UIActionSheet not displaying properly in iOS 8

问题描述

UIAlertView 和 UIActionSheet 在iOS 8中无法正常显示，它隐藏了视图控制器，也在警报视图标题中没有显示。我从Xcode 5.1.1运行应用程序。

UIAlertView and UIActionSheet not displaying properly in iOS 8, its hiding the view controller, also In alert view title is not displaying. I am running the app from Xcode 5.1.1.

推荐答案

您是否在应用程序中添加了ViewController的任何类别。如下所示

Did you added any category for ViewController in your application. like below shown

@implementation UIViewController (CustomeAction)
- (void)setTitle:(NSString *)title{
// YOU CODE///
}
@end

这可能是个问题。我通过删除此类别解决了 - （void）setTitle：（NSString *）title。

This may the issue. I have solved by removing this category - (void)setTitle:(NSString *)title.

注意：来自iOS 8，UIAlertViewController继承自UIViewController。如果你使用类别方法，它将对UIAlertView& UIActionSheet标题。

Note: From iOS 8, UIAlertViewController is inherited from UIViewController. If you use category method, it will be effect on UIAlertView & UIActionSheet titles.

您可以参考 UIAlertController类参考

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