Location of the object after scrolling in UIScrollView
- by ludo
Hi,
I have a scrollView (width:320px height:100px) on my UIView, inside it I add 10 images with width:106.5px each. After that I use this function to have 3 different parts inside my scrollView, so everytime I scroll, an image will automatically be center.
-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
[self returnToPosition:self.scrollView];
}
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
[self returnToPosition:self.scrollView];
}
-(void)returnToPosition:(UIScrollView *)scrollView {
CGFloat itemWidth = 106.5f;
CGFloat position = [self.scrollView contentOffset].x;
CGFloat newPosition = 0.0f;
CGFloat offSet = position / itemWidth;
NSUInteger target = (NSUInteger)(offSet + 0.5f);
newPosition = target * itemWidth;
[self.scrollView setContentOffset:CGPointMake(newPosition, 0.0f) animated:YES];
}
Here is my question, I want to be able to know which image will be in the middle position after the user scroll the View, because I want to display on my UIView a text, specific to that image. But I don't know how to do that.
Some Ideas?
