添加一个简单的UIAlertView [英] Adding a simple UIAlertView

问题描述

我可以使用什么样的入门代码制作一个简单的UIAlertView，上面有一个OK按钮？

What is some starter code I could use to make a simple UIAlertView with one "OK" button on it?

推荐答案

当您想要显示警报时，请执行以下操作：

When you want the alert to show, do this:

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"ROFL" 
                                                    message:@"Dee dee doo doo." 
                                                    delegate:self 
                                                    cancelButtonTitle:@"OK" 
                                                    otherButtonTitles:nil];
[alert show];

    // If you're not using ARC, you will need to release the alert view.
    // [alert release];

如果您想在单击按钮时执行某些操作，请实现此委托方法：

If you want to do something when the button is clicked, implement this delegate method:

- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
    // the user clicked OK
    if (buttonIndex == 0) {
        // do something here...
    }
}

并确保您的代表符合 UIAlertViewDelegate 协议：

And make sure your delegate conforms to UIAlertViewDelegate protocol:

@interface YourViewController : UIViewController <UIAlertViewDelegate> 

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