ios - 如何在 Swift 中显示动态高度的 3*3 CollectionView 单元格

Question

我想显示 3*3 Collection View 动态高度单元格任何人都知道如何显示此

提前致谢。!!!

Answer 1

下面是关于 iPhone 屏幕尺寸的 3 * 3 Collection View 可以使用的方法(假设您的 collectionView 框架是根据屏幕尺寸设置的):

Swift

optional func collectionView(collectionView: UICollectionView,
                               layout collectionViewLayout: UICollectionViewLayout,
                                      sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
    var spaceBetweenCells = 12
    var width = (self.collectionView.frame.size.width - spaceBetweenCells * 3) / 3
    var height = (self.collectionView.frame.size.height - spaceBetweenCells * 3) / 3
    return CGSizeMake(width, height)
}

Objective C

- (CGSize)collectionView:(UICollectionView *)collectionView
                  layout:(UICollectionViewLayout *)collectionViewLayout
  sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{    
    CGFloat spaceBetweenCells = 12;
    CGFloat width = (self.collectionView.frame.size.width - spaceBetweenCells*3) / 3;
    CGFloat height = (self.collectionView.frame.size.height - spaceBetweenCells*3) / 3; 
    return CGSizeMake(width, height);
}

希望这对您有所帮助。