如何在目标c中上下移动单元格

Question

我是ios编程的新手。在这里，我只是想将单元格向右移一点...而且我的顶视图也覆盖了屏幕，我想减小其尺寸以使其与视图正确匹配。如何实现此目的

Answer 1

使用此行代码。当您寻找它时，它将适合您的单元格。

 - (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
            CGFloat spaceBetweenCells = 5;
            CGFloat width = (yourMainView.frame.size.width - spaceBetweenCells) / 2;
            CGFloat height = (yourMainView.frame.size.height - spaceBetweenCells) / 2.5;
            return CGSizeMake(width, width*changeHeight+38 );
        }

Answer 2

尝试

 - (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
          return UIEdgeInsetsMake(8, 8, 0, 0);
    }