iphone - UIScrollView 内的 UIButton 不会在点击时触发

Question

UIScrollView 内的 UIButton 不会在点击时触发。请帮忙解决。

// Add a button
UIButton *btn1 = [[UIButton buttonWithType:UIButtonTypeCustom] retain];
btn1.frame = CGRectMake(0, 0, 26, 18); 
btn1.bounds = CGRectMake(0, 0, 30.0, 30.0); 
[btn1 addTarget:self action:@selector(buttonClick1:) 
                     forControlEvents:UIControlEventTouchUpInside];
[scrollView addSubview:btn1];

- (void)buttonClick1:(id)sender {
    int dd = 4; 
}

Answer 1

我发现了这个东西:

But the scrollview will block the touches from the button unless you set userInteractionEnabled and exclusiveTouch properties to NO on the scrollview. But that would defeat the purpose of having a scrollview inside a button I think.

(参见Can we put a UIButton in a UIScrollView and vice versa in iPhone)

但是怎么做呢？

假设你有一个 UIScrollView *sv ...然后

sv.userInteractionEnabled = YES;
sv.exclusiveTouch = YES;

我还要补充

sv.canCancelContentTouches = YES;
sv.delaysContentTouches = YES;