ios: jak uzyskać indeks aktualnej strony? UIscrollView

//Horizontal

 NSInteger pagenumber = scrollView.contentOffset.x/scrollView.bounds.size.width;

//Vertical

 NSInteger pagenumber = scrollView.contentOffset.y/scrollView.bounds.size.height;

func scrollViewDidEndDecelerating(scrollView: UIScrollView) {

 print("END Scrolling \(scrollView.contentOffset.x/scrollView.bounds.size.width)")

 index = Int(scrollView.contentOffset.x/scrollView.bounds.size.width)

}

contentOffset

CGSize

UIScrollView

-(void)KinarafindingSelectedCategory:(UIScrollView*)scrollView{

 for (UIView *v in scrollView.subviews)

 {

 if ([v isKindOfClass:[UIButton class]])

 {

 UIButton *btn=(UIButton*)v; float x1=scrollView.contentOffset.x+(([UIScreen mainScreen].bounds.size.width/2)-(btn.frame.size.width/2));

 float x2=scrollView.contentOffset.x+(([UIScreen mainScreen].bounds.size.width/2)+(btn.frame.size.width/2));

 float BtnMidPoint=btn.frame.origin.x+(btn.frame.size.width/2);

 if(BtnMidPoint >= x1 && BtnMidPoint <= x2)

 {

 if(scrollView==KinaraCategory)

 {

 KinaraSelectedCategoryName=btn.titleLabel.text;

 KinaraSelectedCategoryID=btn.tag;

 NSLog(@"Selected Category Tag : %d",KinaraSelectedCategoryID);

 NSLog(@"Selected Category Name : %@",KinaraSelectedCategoryName);

 }

 else if(scrollView==KinaraSubCategory)

 {

 KinaraSelectedSubCategoryID=btn.tag;

 KinaraSelectedSubCategoryName=btn.titleLabel.text; NSLog(@"Selected SubCategory Tag : %d",KinaraSelectedSubCategoryID);

 NSLog(@"Selected SubCategory Name : %@",KinaraSelectedSubCategoryName);

 }

 break;

 }

 }

 }}