如何根据设备屏幕大小调整集合视图中单元格的大小？

Question

我在 Swift 工作，我希望我的细胞在 iPhone 8 plus 上看起来类似于这张图片

但是当我在 iPad 上加载它时，单元格的大小不适应屏幕大小。它看起来像这样：

有谁知道如何在我的 CollectionViewController 中执行此操作？

Answer 1

UICollectionViewDelegateFlowLayout 中有一个委托方法

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {


    let collectionViewCellSize = collectionView.frame.size.width / 10 // to show 10 cells in a row

    return CGSize(width: collectionViewCellSize, height: collectionViewCellSize)
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
    return UIEdgeInsetsMake(0, 0, 0, 0)
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
    return 0
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
    return 0
}

Answer 2

试试这个。

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    let yourWidth = (collectionView.bounds.width) / 10.0
    let yourHeight = yourWidth

    return CGSize(width: yourWidth, height: yourHeight)
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
    return UIEdgeInsetsMake(0, 0, 0, 0)
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
    return 0
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
    return 0
}

如何根据设备屏幕大小调整集合视图中单元格的大小？

How can I resize the cells in a collection view dependent on the device screen size?

ios

swift

xcode

size

collectionview