捏缩放uiscrollview仅在x轴上

Question

How can i restrict the pinching effect only on X-axis. ?

I've created a ScrollView and added an image into it . I've already done the pinch zoom effect for the UIImageView but i want to restrict the zoom only on X-axis.

Answer 1

Try this :

1. Use UIScrollViewDelegate
2. Implement this function

-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    if (scrollView.contentOffset.x > 0)
        scrollView.pinchGestureRecognizer.enabled = YES;
    else
        scrollView.pinchGestureRecognizer.enabled = NO; 
}