如何居中对齐 UICollectionView 的单元格? [英] How to center align the cells of a UICollectionView?

问题描述

我目前正在将 UICollectionView 用于用户界面网格，它工作正常.但是，我想启用水平滚动.网格支持每页 8 个项目，当项目总数为 4 时，这就是启用水平滚动方向的项目应如何排列:

I am currently using UICollectionView for the user interface grid, and it works fine. However, I'd like to be enable horizontal scrolling. The grid supports 8 items per page and when the total number of items are, say 4, this is how the items should be arranged with horizontal scroll direction enabled:

0 0 x x
0 0 x x

这里 0 -> 收藏品和 x -> 空单元格

Here 0 -> Collection Item and x -> Empty Cells

有没有办法让它们居中对齐:

Is there a way to make them center aligned like:

x 0 0 x
x 0 0 x

让内容看起来更干净?

下面的安排也可能是我期待的解决方案.

Also the below arrangement might also be a solution I am expecting.

0 0 0 0
x x x x

推荐答案

我认为你可以通过实现这样的东西来实现单行外观:

I think you can achieve the single line look by implementing something like this:

- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
    return UIEdgeInsetsMake(0, 100, 0, 0);
}

您将不得不使用该数字来弄清楚如何将内容强制为一行.第一个 0 是 top edge 参数，如果你想在屏幕上垂直居中，你也可以调整那个.

You will have to play around with that number to figure out how to force the content into a single line. The first 0, is the top edge argument, you could adjust that one too, if you want to center the content vertically in the screen.

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