根据各种屏幕尺寸自动布局集合视图 [英] Auto Layout Collection view according to various screen sizes

问题描述

我在普通视图控制器中使用集合视图，使用集合视图委托和数据源.我正在使用 sizeForItemAtIndexPath 但它不会调整单元格的大小.

I'm using a collection view inside a normal view controller using the collection view delegate and data source. I'm using the sizeForItemAtIndexPath but it doesn't resize the cell.

let screenSize: CGRect = UIScreen.main.bounds

func collectionView(_collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize
{
    return CGSize(width: screenSize.width / 3, height: screenSize.width / 3)
}

正确使用 autoLayout 为集合视图分配了约束.

The collection view is assigned the constraints using autoLayout properly.

它在 iPhone5 中的样子

它应该是什么样子

我知道使用了estimatedItemSize，但我无法使用它，因为这不是UICollectionViewController.感谢您的任何建议?

I know the estimatedItemSize is used but I'm unable to use it since this is not a UICollectionViewController. Thanks for any suggestion?

推荐答案

请确保:

• 确认UICollectionViewDelegateFlowLayout.
• collectionView 的宽度 = 屏幕的宽度.
• 单元格的最小间距为零.您可以从 Interface Builder(选择 collectionView -> 显示大小检查器 -> 将最小间距设置为 0)或通过实现 minimumInteritemSpacingForSectionAt 返回零来更改它.

• Confirming to UICollectionViewDelegateFlowLayout.
• collectionView's width = screen's width.
• Min Spacing for cells is zero. You can change it from the Interface Builder (Select the collectionView -> show size inspector -> set min spacing to 0), or by implementing minimumInteritemSpacingForSectionAt returning zero.

我希望回答了您的问题.

I hope that answered your question.

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