iOS手势操作

//向左向右轻划

UISwipeGestureRecognizer *swipeLeft=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeLeft)];

swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;

[self.view addGestureRecognizer:swipeLeft];

//    [swipeLeft release];

UISwipeGestureRecognizer *swipeRight=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeRight)];

swipeRight.direction = UISwipeGestureRecognizerDirectionRight;

[self.view addGestureRecognizer:swipeRight];

//    [swipeRight 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;

[self.view addGestureRecognizer:singleFingerOne];

//单指双击

UITapGestureRecognizer *singleFingerTwo = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleFingerEvent:)];

singleFingerTwo.numberOfTouchesRequired = 1;

singleFingerTwo.numberOfTapsRequired = 2;

//    singleFingerTwo.delegate = self;

[self.view addGestureRecognizer:singleFingerTwo];

//双指单击和双击

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;

[self.view addGestureRecognizer:doubleFingerOne];

[self.view addGestureRecognizer:doubleFingerTwo];

//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];

}

//事件处理方法：

- (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");

}

}