UICollectionViewFlowLayout minimumInteritemSpacing 不起作用 [英] UICollectionViewFlowLayout minimumInteritemSpacing doesn't work

问题描述

我的 UICollectionView 有两个问题:

I've got two problems with my UICollectionView:

• minimumInteritemSpacing 不起作用
• 它在 iOS 6 上水平溢出

我这样设置布局:

UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.itemSize = CGSizeMake(70.0f, 70.0f);
layout.scrollDirection = UICollectionViewScrollDirectionVertical;
layout.minimumLineSpacing = 0.0f;
layout.minimumInteritemSpacing = 0.0f;

_collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
// I set the size of _collectionView in layoutSubviews:
// _collectionView.frame = self.bounds;

_collectionView.contentInset = UIEdgeInsetsMake(8.0f, 8.0f, 8.0f, 8.0f);

图片显示在 iOS 6 上的结果(在 iOS 7 上没有溢出，但列间距仍然不为零)

The image shows the result on iOS 6 (on iOS 7 there is no overflow, but the spacing between columns is still not zero)

我试过这个解决方案https://gist.github.com/OliverLetterer/5583087，但在我的情况下它并不能解决任何问题.

I tried this solution https://gist.github.com/OliverLetterer/5583087, but it doesn't fix anything in my case.

推荐答案

来自 minimumInterItemSpacing 属性的文档:

对于水平滚动的网格，该值表示同一列中项目之间的最小间距.这个间距是用来计算一行可以放多少个item，但是在item个数确定之后，实际间距可能会向上调整.

For a horizontally scrolling grid, this value represents the minimum spacing between items in the same column. This spacing is used to compute how many items can fit in a single line, but after the number of items is determined, the actual spacing may possibly be adjusted upward.

流布局将在其宽度上均匀排列单元格，间距不小于您设置的最小值.如果您不想要间距，则需要实现自己的布局.

The flow layout will evenly space cells across its width, with a spacing of no smaller than the minimum you set. If you don't want the spacing, you'll need to implement your own layout.

我不确定的 iOS 6 溢出问题.尝试放弃对 iOS 6 的支持；)

The iOS 6 overflow issue I'm not sure about. Try dropping support for iOS 6 ;)

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