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UICollectionView 单元格中的两个视图。UIImageView 和 UIView 。像这样：布局

但是当我做约束时，我得到一个错误：

无法同时满足约束

    imgView.snp_makeConstraints { make in
        make.top.equalTo(contentView)//.inset(K.Space.Small)
        //make.bottom.equalTo(self.descView.snp_top)//.inset(K.Space.Small.negative())
        make.left.right.equalTo(contentView)
    }

    descView.snp_makeConstraints { make in
        make.bottom.equalTo(contentView)
        make.left.right.bottom.equalTo(contentView)
        make.height.equalTo(44)
        make.top.equalTo(imgView.snp_bottom)
    }

错误： 错误

为什么？

编辑：在 vc viewDidLoad 方法中初始化集合视图。【layout.itemSize】在ViewController中第一次出现错误。但向下滚动没有错误。

    let collectionContentInset = UIEdgeInsets(top: 0, left: 12, bottom: 0, right: 12)
    var collectionItemSize = DXLayoutSize(aspectRatio: 1.35)
    collectionItemSize.containerInset = collectionContentInset

    let layout = UICollectionViewFlowLayout()
    layout.itemSize = collectionItemSize.itemSize()
    layout.minimumInteritemSpacing = 6;
    layout.minimumLineSpacing = 0;

    collectionView = UICollectionView(frame: CGRectZero, collectionViewLayout: layout)
    collectionView!.backgroundColor = DXUIColor.Background.color()
    collectionView!.showsHorizontalScrollIndicator = false

    collectionView!.contentInset = collectionContentInset
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1 回答 1

1

查看错误消息。它说您有一个NSAutoResizingMaskLayoutConstraint将contentView' 的高度和宽度设置为 0。只需禁用从自动调整掩码创建约束：

contentView.translatesAutoresizingMaskIntoConstraints = false

于 2016-04-08T08:59:08.197 回答