- (void)viewDidLoad { //建立滑动手势 UISwipeGestureRecognizer *recognizer; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; //设置滑动方向,下面以此类推 [recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)]; [[self view] addGestureRecognizer:recognizer]; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)]; [[self view] addGestureRecognizer:recognizer]; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)]; [[self view] addGestureRecognizer:recognizer]; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)]; [[self view] addGestureRecognizer:recognizer]; [super viewDidLoad]; } //这个是协议回调,所以需要遵循 UIGestureRecognizerDelegate协议 -(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer { NSLog(@"Swipe received."); if (recognizer.direction==UISwipeGestureRecognizerDirectionDown) { NSLog(@"向下滑动"); //执行程序 } if (recognizer.direction==UISwipeGestureRecognizerDirectionUp) { NSLog(@"向上滑动"); //执行程序 } if (recognizer.direction==UISwipeGestureRecognizerDirectionLeft) { NSLog(@"向左滑动"); //执行程序 } if (recognizer.direction==UISwipeGestureRecognizerDirectionRight) { NSLog(@"向右滑动"); //执行程序 } }
iOS 上下左右手势识别
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转载自duchengjiu.iteye.com/blog/1915917
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