ios中的uiscrollview如何获取子试图？

Question

uiscrollview中有很多imageview，当点击其中的imageview时更改点击的imageview的图片如何操作？

Answer 1

//设置图片能交互
img.userInteractionEnabled=YES;
//给图片添加手势监听
[img addGestureRecognizer:[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(imgClick:)]];
//在这个方法中改变图片
-(void)imgClick:(UITapGestureRecognizer *)recognizer
{
//获得img
uiimageview *img = (uiimageView *)recognizer.view;
//改变图片
img.image=[uiimage imagenamed:@""];

}