ZLCollectionLeftAlignLayout 0.0.6

ZLCollectionLeftAlignLayout 0.0.6

×

由 TsinHzl 维护。

ZLCollectionLeftAlignLayout 0.0.6

  • 作者
  • TsinHzl

ZLCollectionLeftAlignLayout

左对齐的CollectionView布局

描述

  • 自动从左到右排列collection cell的layout
  • 当您将属性 scrollDirection 设置为 .vertical 时，它将自动换行
  • 当您将属性 scrollDirection 设置为 .horizontal 时，您可能需要设置collectionView的高度以只显示一行

用法

  • import ZLCollectionLeftAlignLayout

    • import ZLCollectionLeftAlignLayout

  • 将collection view的collectionViewLayout设置为ZLCollectionLeftAlignLayout的一个实例

    • private lazy var collectionView: UICollectionView = {
  // instance ZLCollectionLeftAlignLayout
  let defaultLayout = ZLCollectionLeftAlignLayout()
  defaultLayout.minimumLineSpacing = 10.0
  defaultLayout.minimumInteritemSpacing = 10.0
  defaultLayout.scrollDirection = .vertical
  defaultLayout.sectionInset = UIEdgeInsets(top: 10.0, left: 10.0, bottom: 20.0, right: 10.0)
  // set collectionViewLayout to a instance of ZLCollectionLeftAlignLayout
  let collectionView = UICollectionView(frame: .zero, collectionViewLayout: defaultLayout)
  collectionView.backgroundColor = .magenta
  collectionView.showsVerticalScrollIndicator = false
  return collectionView
}()

  • 实现方法

    • func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize { 
  let w = CGFloat.random(in: 20.0 ... 50.0)
  return CGSize(width: 30.0 + w, height: 25.0)
}

  • 屏幕截图 screenshot