Gesture - Swipe滑动

1。

-(void)addGesture {

    UISwipeGestureRecognizer swipeGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self  action:@selector(handleSwipes:)];

    

    /* 可被侦测到的滑动方向 */

    swipeGesture.direction =  UISwipeGestureRecognizerDirectionLeft | UISwipeGestureRecognizerDirectionDown | .... ;

    

    /* 滑动时需要的手指个数*/

    swipeGesture.numberOfTouchesRequired = 1;

    

    /* Add it to the view */

    [self.view addGestureRecognizer:swipeGesture];  

}

- (void) handleSwipes:(UISwipeGestureRecognizer *)paramSender{

     //只会执行能被侦测到的方向

    if (paramSender.direction & UISwipeGestureRecognizerDirectionDown){

        NSLog(@"Swiped Down.");

    }

    if (paramSender.direction & UISwipeGestureRecognizerDirectionLeft){

        NSLog(@"Swiped Left.");

    }

    if (paramSender.direction & UISwipeGestureRecognizerDirectionRight){

        NSLog(@"Swiped Right.");

    }

    if (paramSender.direction & UISwipeGestureRecognizerDirectionUp){

        NSLog(@"Swiped Up.");

    }

    

}