触摸UIImageView时显示UIAlert

Question

我有一个ImageView,当用户按下图像视图将消息显示为警报时,我想要它.我应该使用什么方法？你能举个例子吗？

提前致谢..

Answer 1

添加UITapGestureRecognizer:

imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] 
    initWithTarget:self action:@selector(handleTap:)];
[imageView addGestureRecognizer:tapRecognizer];
[tapRecognizer release];

然后你的回调......

- (void)handleTap:(UITapGestureRecognizer *)tapGestureRecognizer
{
  //show your alert...
}