Iphone 如何定位单击的以编程方式创建的按钮？

我正在做一个关于多项选择题（MCQ）的应用程序，在这里我必须从一个Web服务获取问题和答案。我有一个问题和4个选项，在4个选项中，我有1个正确答案。在每个选项中，我都以编程方式创建了一个按钮。我就是这样做的：

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    button.frame = CGRectMake(40, yButton, 30, 30);
    [button setTitle:@" " forState:UIControlStateNormal];

[button addTarget:self action:@selector(correctPressed)
 forControlEvents:UIControlEventTouchDown];
   [buttonArray addObject:button];

一个问题中有多少选项将决定将创建多少按钮。现在，当我想显示一个指示，当某个按钮被点击时，该按钮需要保持高亮显示，直到我决定更改我的答案。我已经做了一些方法

我使用了

indepath

，希望能像

TableView

一样使用

indepath.row

。这根本不起作用。有人能帮忙吗

谢谢

将此更改为

[button addTarget:self action:@selector(correctPressed)
 forControlEvents:UIControlEventTouchDown];
   [buttonArray addObject:button];

[button addTarget:self action:@selector(correctPressed:)
 forControlEvents:UIControlEventTouchDown];
   [buttonArray addObject:button];

现在，在选择器中，您将获得对按钮的引用

例如

**您可能希望对按钮使用选定的方法。因此，您可以设置一个选中的按钮

我刚刚输入了这段代码，检查我的@selector更改，setHighlighted实际上是正确的，但你应该明白这一点

现在，您的代码将调用选择器，它应该有一个对调用按钮的引用

---

约翰。

没关系，我解决了这个问题

我做的是做了一个

button.tag=number；数字+++

代码中的某个地方。通过使用标记方法，我可以在

数组中跟踪单击的按钮

-(void)correctAnswer
{
   yButton += 50;
   yLabel += 50;

   label = [[UILabel alloc] initWithFrame:CGRectMake(75, yLabel, 150, 30)];
   label.backgroundColor = [UIColor clearColor];
   [label setText:Option];
   [labelArray addObject:label];
   [self addSubview:label];

   button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
   button.frame = CGRectMake(40, yButton, 30, 30);
   button.tag = idx;
   NSLog(@"-------====== Tag Index is: %i", idx);
   UIImage * btnImage1 = [UIImage imageNamed:@"uncheckedCheckbox.png"];
   [button setImage:btnImage1 forState:UIControlStateNormal];
   [button addTarget:self action:@selector(correctPressed:)
    forControlEvents:UIControlEventTouchUpInside];

   [buttonArray addObject:button];
idx++;
[self addSubview:button];

}


-(void)correctPressed:(id)sender {

int but =  (int)[(UIButton*)sender tag];

if(correctValue) {
    UIImage * btnImage1 = [UIImage imageNamed:@"uncheckedCheckbox.png"];
    UIButton *btn1 = [buttonArray objectAtIndex:but];
    [btn1 setImage:btnImage1 forState:UIControlStateNormal];
    [btn1 setImage:btnImage1 forState:UIControlStateNormal];
    [btn1 setTitle:@"" forState:UIControlStateNormal];
    correctValue = NO;

} else {
    UIImage * btnImage2 = [UIImage imageNamed:@"checkedCheckbox.png"];
    UIButton *btn2 = [buttonArray objectAtIndex:but];
    [btn2 setImage:btnImage2 forState:UIControlStateNormal];
    [btn2 setImage:btnImage2 forState:UIControlStateNormal];
    [btn2 setTitle:@"" forState:UIControlStateNormal];
    correctValue = YES;
} 

NSLog(@"Correct answer!!");    
}

for（int i=0；iThanks John，将试用该代码。您能解释一下为什么要使用按钮
（ui button*）吗？编辑：我已经试用了该代码，但效果不是我想要的。我希望它高亮显示，直到我再次点击其他按钮或它本身。
[按钮设置高亮显示：是]当我松开手指时，
将变为
否
。对不起，约翰，我觉得我在打扰你。但它仍然不起作用。它对你有用吗？当你点击按钮时，当你松开手指时，它仍然高亮显示？
-(void)correctAnswer
{
   yButton += 50;
   yLabel += 50;

   label = [[UILabel alloc] initWithFrame:CGRectMake(75, yLabel, 150, 30)];
   label.backgroundColor = [UIColor clearColor];
   [label setText:Option];
   [labelArray addObject:label];
   [self addSubview:label];

   button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
   button.frame = CGRectMake(40, yButton, 30, 30);
   button.tag = idx;
   NSLog(@"-------====== Tag Index is: %i", idx);
   UIImage * btnImage1 = [UIImage imageNamed:@"uncheckedCheckbox.png"];
   [button setImage:btnImage1 forState:UIControlStateNormal];
   [button addTarget:self action:@selector(correctPressed:)
    forControlEvents:UIControlEventTouchUpInside];

   [buttonArray addObject:button];
idx++;
[self addSubview:button];

}


-(void)correctPressed:(id)sender {

int but =  (int)[(UIButton*)sender tag];

if(correctValue) {
    UIImage * btnImage1 = [UIImage imageNamed:@"uncheckedCheckbox.png"];
    UIButton *btn1 = [buttonArray objectAtIndex:but];
    [btn1 setImage:btnImage1 forState:UIControlStateNormal];
    [btn1 setImage:btnImage1 forState:UIControlStateNormal];
    [btn1 setTitle:@"" forState:UIControlStateNormal];
    correctValue = NO;

} else {
    UIImage * btnImage2 = [UIImage imageNamed:@"checkedCheckbox.png"];
    UIButton *btn2 = [buttonArray objectAtIndex:but];
    [btn2 setImage:btnImage2 forState:UIControlStateNormal];
    [btn2 setImage:btnImage2 forState:UIControlStateNormal];
    [btn2 setTitle:@"" forState:UIControlStateNormal];
    correctValue = YES;
} 

NSLog(@"Correct answer!!");    
}

for(int i=0; i<[videolistArray count];i++){


    NSArray *myWords = [[[videolistArray objectAtIndex:i] valueForKey:@"video"] componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"/"]];
    //NSLog(@"%@",[myWords lastObject]);

    UIButton *guitaristButton = [[UIButton alloc]init];
    guitaristButton.frame = CGRectMake(0, ycomp, 300, 35);
    guitaristButton.tag = i;
    [guitaristButton setBackgroundImage:[UIImage imageNamed:@"green-buttons.png"] forState:UIControlStateNormal];
    [guitaristButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [guitaristButton setTitle:[myWords lastObject] forState:UIControlStateNormal];
    [guitaristButton addTarget:self action:@selector(VideoButtonSelected:) forControlEvents:UIControlEventTouchUpInside];
    //[guitaristButton performSelector:<#(SEL)aSelector#> withObject:<#(id)object1#> withObject:<#(id)object2#>
    [videoScrollView addSubview:guitaristButton];
    [guitaristButton release];

    ycomp = ycomp+35;   
}
videoScrollView.contentSize=CGSizeMake(300, ycomp);