iOS开发-UIImageView响应点击事件

UIImageView是不能够响应点击事件的，在开发过程中我们需要经常对头像等添加点击事件，上网搜索一番后发现有如下两个方法：

1.找到点击图片Event，添加事件处理函数

UIImageView.userInteractionEnabled = YES;

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{

    UITouch *touch = [[event allTouches] anyObject];

    if ([touch view] != UIImageView)
    {
        //do some method.....

    }

}

2.为UIImageView添加Tap手势

UIImageView.userInteractionEnabled = YES;

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[UIImageView addGestureRecognizer:singleTap];

- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer {

    //do something....
}

3.在UIImageView外层套一个UIView，在外层UIView上添加点击事件处理函数

UIView*view = [[UIControl alloc] initWithFrame:CGRectMake(50,200,150,150)] ;
view.backgroundColor = [UIColor clearColor];
[(UIControl *)view addTarget:self action:@selector(xxx) forControlEvents:UIControlEventTouchUpInside];
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"a.gif"]];
imageView.frame = CGRectMake(0, 0, view.bounds.size.width, view.bounds.size.height);
[view addSubview:imageView];
[self.view addSubview:view];

　　

ref：http://blog.csdn.net/iorchid/article/details/6398102#

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