给UIImageView添加点击事件

给UIImageView添加点击事件

//单手单击
UIImageView *imageview1 = [[UIImageView alloc] initWithFrame:CGRectMake(125, 50, 229, 229)];
        [imageview1 setImage:[UIImage imageWithContentsOfFile:path]];
        imageview1.userInteractionEnabled = YES;
        UITapGestureRecognizer *singleTap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(buttonpress1:)];
        [imageview1 addGestureRecognizer:singleTap1];
        [singleTap1 release];
        [myScrollView addSubview:imageview1];
        [imageview1 release];

手势recognizer

 //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");
 }elseif(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");
 }elseif(sender.numberOfTapsRequired == 2){
 //双指双击
 NSLog(@"双指双击");
 }
 }