如何在 iOS 的表格视图中的单元格和单元格索引路径中的滚动视图中获取以编程方式创建的视图的位置

Question

这是我的代码：

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

 CGFloat pageWidth = scrollView.frame.size.width;

 int page = floor((scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1;

 NSLog(@"Page No Scroll %i",page);

}

Answer 1

您可以通过在 UIScrollView 上执行此操作来获得任何 subview。

for(UIView * subView in scrollView.subviews ) 
{ 
     // Here You can Get all subViews of your myScrollView.
}

Answer 2

-(void)scrollViewDidScroll:(UIScrollView *)ScrollView
{
int scrollPositionX = callerScrollView.contentOffset.x;
if (callerScrollView == tbl_ProductView) return;
 for (UITableViewCell *cell in tbl_ProductView.visibleCells) {
UIScrollView cellScrollView = (UIScrollView )[cell viewWithTag:100];
if (callerScrollView == cellScrollView) continue;
NSInteger indexPath = callerScrollView.tag;
//NSLog(@"IndexPath Of Cell: %ld",(long)indexPath);
cellScrollView.contentOffset = CGPointMake(scrollPositionX, 0);
}
//ScollPage Position
static NSInteger previousPage = 0;
CGFloat pageWidth = callerScrollView.frame.size.width;
float fractionalPage = callerScrollView.contentOffset.x / pageWidth;
 NSInteger page = lround(fractionalPage);
  if (previousPage != page)
 {
   previousPage = page;
    NSLog(@"Scrolling Page: %li",(long)page);
 }
}