iOS－响应上下左右滑动手势

分类： iPhone开发2012-03-17 14:42 25489人阅读 评论(8) 收藏 举报

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-(void)viewDidLoad{

UISwipeGestureRecognizer *recognizer;

recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];

[[self view] addGestureRecognizer:recognizer];

[recognizer release];

recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];

[[self view] addGestureRecognizer:recognizer];

[recognizer release];

recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)];

[[self view] addGestureRecognizer:recognizer];

[recognizer release];

UISwipeGestureRecognizer *recognizer;

recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)];

[[self view] addGestureRecognizer:recognizer];

[recognizer release];

}

-(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer{

if(recognizer.direction==UISwipeGestureRecognizerDirectionDown) {

NSLog(@"swipe down");

//执行程序

}

if(recognizer.direction==UISwipeGestureRecognizerDirectionUp) {

NSLog(@"swipe up");

//执行程序

}

if(recognizer.direction==UISwipeGestureRecognizerDirectionLeft) {

NSLog(@"swipe left");

//执行程序

}

if(recognizer.direction==UISwipeGestureRecognizerDirectionRight) {

NSLog(@"swipe right");

//执行程序

}

}

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