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....
}