Question

我已经以编程方式创建了一个UIActionsheet但是我无法弄清楚如何将它链接到现有的IBAction。

    -(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (buttonIndex == 0) {
    self.label.text = @"Destructive Button Clicked";
          }}

这是我的代码，我点击一个按钮，我希望它链接到我已经拥有的以下IBAction。

    - (IBAction)doButton;

那么，我该怎么做呢？任何帮助将不胜感激。感谢

Answer 1

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex: (NSInteger)buttonIndex {
if (buttonIndex == 0) {
self.label.text = @"Destructive Button Clicked";
[self doButton];
}

}

Answer 2

最好的方法是在你的班级中添加一个UIActionSheet委托，并在你的IBAction中调用行动表。

.h文件

@interface ViewController : UIViewController <UIActionSheetDelegate>

-(IBAction)doButton;

@end

.m文件

-(IBAction)doButton {

UIActionSheet *doSheet = [[UIActionSheet alloc] initWithTitle:@"Your title" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Button 0", @"Button 1", nil];

[doSheet showInView:self.view];
}

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex: (NSInteger)buttonIndex {
       if (buttonIndex == 0) {
             //Do Something
       }
       if(buttonIndex == 1) {
            //Do Something else
       }
}

将UIActionSheet按钮与当前IBAction链接

2 个答案: