Question

我正在使用for循环创建一大组按钮，并希望在单击按钮时从一组发送数据

我的按钮处于for循环中，如此

标题正在for循环中处理，而Url是标题键

的字典

-(void)addToScrollView {

     UIColor *ezBlue = [UIColor colorWithRed:(17.0 / 255.0) green:(95.0 / 255.0) blue:(207.0 / 255.0) alpha: 1];
    UIColor *ezGreen = [UIColor colorWithRed:(57.0 / 255.0) green:(145.0 / 255.0) blue:(2.0 / 255.0) alpha: 1];


    yLoc = 0;
    for(NSString *titleString in titlesArray) {

        int bufferInt = 2;
        buttonHeight = 0;
        buttonTop = yLoc;

        NSString *descString = [dFT objectForKey:titleString];
        NSString *dispUrlString = [duFT objectForKey:titleString];
        NSString *urlString = [uFT objectForKey:titleString];

        ...
        ...

        UIButton *buttonToPage = [[UIButton alloc] initWithFrame:CGRectMake(20, buttonTop, 280, buttonHeight)];
        [buttonToPage addTarget:self action:@selector(customBrowser:) forControlEvents:UIControlEventTouchUpInside];

        [mainScrollView addSubview:buttonToPage];

    }
    height = yLoc;
    [self scrollViewHeight];
}

和void方法将数据发送到

-(void)customBrowser:(NSString *)url {
//Do Stuff here
}

如何将诸如url之类的信息传递给void方法，以便对其进行处理。

Answer 1

可能你有一个带有URL的数组，或者类似的东西，对吗？

这不是最好的方法，但你可以使用＆＃34;标签＆＃34;按钮中的属性，用于指示URL的索引。

-(void)customBrowser:(UIButton *)sender
{
   NSString *stringURL = self.arrayURL[sender.tag];
   //do your stuff here
}

但是，我建议您尝试使用TableViews或CollectionViews来解决您的问题。

Answer 2

结束将按钮的标题设置为url并在方法中读取它。

设置......

UIButton *buttonToPage = [[UIButton alloc] initWithFrame:CGRectMake(20, buttonTop, 280, buttonHeight)];
        [buttonToPage setTitle:urlString forState:UIControlStateNormal];
        [buttonToPage addTarget:self action:@selector(customBrowser:) forControlEvents:UIControlEventTouchUpInside];

        [mainScrollView addSubview:buttonToPage];

读它......

-(void)customBrowser:(UIButton *)sender {
//Do Stuff here
NSLog(@"The button title is %@",sender.titleLabel.text);

}

使用UIButton将信息发送到void方法

2 个答案: