UIImageView响应点击事件

UIImageView *imageView = [self getYourImageView];
imageView.image = [self getYourImage];
imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(yourHandlingCode:)];
[imageView addGestureRecognizer:singleTap];
[singleTap release];

//单指单击

UITapGestureRecognizer *singleFingerOne = [[UITapGestureRecognizer alloc] initWithTarget:self
 action:@selector(handleSingleFingerEvent:)];
 singleFingerOne.numberOfTouchesRequired = 1; //手指数
 singleFingerOne.numberOfTapsRequired = 1; //tap次数
 singleFingerOne.delegate = self;


 //单指双击
 UITapGestureRecognizer *singleFingerTwo = [[UITapGestureRecognizer alloc] initWithTarget:self
 action:@selector(handleSingleFingerEvent:)];
 singleFingerTwo.numberOfTouchesRequired = 1;
 singleFingerTwo.numberOfTapsRequired = 2;
 singleFingerTwo.delegate = self;
 //双指单击
UITapGestureRecognizer *doubleFingerOne = [[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(handleDoubleFingerEvent:)];
 doubleFingerOne.numberOfTouchesRequired = 2;
 doubleFingerOne.numberOfTapsRequired = 1;
doubleFingerOne.delegate = self;
UITapGestureRecognizer *doubleFingerTwo = [[UITapGestureRecognizer alloc] initWithTarget:self
                     action:@selector(handleDoubleFingerEvent:)];
 doubleFingerTwo.numberOfTouchesRequired = 2;
 doubleFingerTwo.numberOfTapsRequired = 2;
 doubleFingerTwo.delegate = self;
//如果不加下面的话，当单指双击时，会先调用单指单击中的处理，再调用单指双击中的处理
[singleFingerOne requireGestureRecognizerToFail:singleFingerTwo];
 //同理双指亦是如此
 [doubleFingerOne requireGestureRecognizerToFail:doubleFingerTwo];
 [self.view addGestureRecognizer:singleFingerOne];
[self.view addGestureRecognizer:singleFingerTwo];
[self.view addGestureRecognizer:doubleFingerOne];
 [self.view addGestureRecognizer:doubleFingerTwo];
 [singleFingerOne release];
 [singleFingerTwo release];
[doubleFingerOne release];
 [doubleFingerTwo release];
处理事件的方法，代码：
//处理单指事件
 - (void)handleSingleFingerEvent:(UITapGestureRecognizer *)sender
{
if (sender.numberOfTapsRequired == 1) {
 //单指单击
 NSLog(@"单指单击");
}else if(sender.numberOfTapsRequired == 2){
 //单指双击
NSLog(@"单指双击");
}
 }
 //处理双指事件
 - (void)handleDoubleFingerEvent:(UITapGestureRecognizer *)sender
{
 if (sender.numberOfTapsRequired == 1) {
 //双指单击
NSLog(@"双指单击");
}else if(sender.numberOfTapsRequired == 2){
//双指双击
 NSLog(@"双指双击");
}
}