未调用appdelegate中的clickedButtonAtIndex [英] clickedButtonAtIndex in appdelegate is not called

问题描述

我在MyapplicationAppDelegate.m文件中用2个按钮取消和确定调用UIAlert，调用警报，但点击取消或确定按钮

I am calling UIAlert with 2 buttons "Cancel" and "OK" in MyapplicationAppDelegate.m file , the alert is called but on tap of "Cancel" or "OK" button

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

$ b不调用
$ b

方法。

method is not called.

我在MyapplicationAppDelegate.h文件中添加了UIAlertViewDelegate，如下所示

I have added UIAlertViewDelegate in the MyapplicationAppDelegate.h file as below

#import UIKit/UIKit.h
@interface MyapplicationAppDelegate: NSObject UIApplicationDelegate,UIAlertViewDelegate
{
..
}

我想知道还需要什么。

推荐答案

我我不确定在发布问题时你的拼写错误，但你应该在< ..，..>

I am not sure whether its your typo while posting the question but you should call the delegate within <.. , .. >

@interface MyapplicationAppDelegate: NSObject <UIApplicationDelegate,UIAlertViewDelegate> { .. }

以下是UIAlertView的示例代码

Here is sample code for UIAlertView

UIAlertView *myAlertView = [[UIAlertView alloc]initWithTitle:@""message:@"Your message goes here" delegate:self cancelButtonTitle:@"OK"otherButtonTitles:nil];
    [myAlertView show];
    [myAlertView release];

我不确定myAlertView.delgate = self是正确的方法，但我确实设置了委托使用initWithTitle

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