强制 collectionView 只有 2 行 [英] Enforce collectionView to have only 2 rows

问题描述

我必须创建一个集合视图，这样无论 iphone 大小如何，我们每行只有 2 个图像，而且我们需要每行和列之间的边框，如图所示.

I have to make one collection view so that irrespective of iphone size we have just 2 images in each row and also we need border between each row and column as shown in the image.

我想要这样:

推荐答案

试试这个代码.只是一种不同的方法.

Try this code. Just a different approach.

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

     let layout = collectionView.collectionViewLayout as! UICollectionViewFlowLayout
     layout.sectionInset = UIEdgeInsets(top: 6, left: 4, bottom: 6, right: 4)
     layout.minimumInteritemSpacing = 04
     layout.minimumLineSpacing = 04
     layout.invalidateLayout()
     return CGSize(width: ((self.view.frame.width/2) - 6), height: ((self.view.frame.width / 2) - 6))
     }

以上代码在不同设备上的输出.

Output from above code on different devices.

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