如何在Swift中以编程方式更改UICollectionViewCell大小？ [英] How to change UICollectionViewCell size programmatically in Swift?

问题描述

我有一个 UICollectionView ，带有分段控件来切换数据。但是如何以编程方式更改 UICollectionViewCell 尺寸属性？然后我可以为每种数据类型适当地定制每种样式。

I have a UICollectionView with a segmented control to switch between data. But how do I change the UICollectionViewCell size properties programmatically ? then I can custom each style appropriately for each data type.

例如将宽度更改为520点，将高度更改为100.我是iOS开发新手，对CSS很有经验：/

For example change the width to 520 points and height to 100. I am new to iOS development and am experienced with CSS :/

我知道如何在Xcode中做（显然），但不知道在swift中更改它的正确方法。任何想法或反馈都非常感谢（Y）

I know how to do it in Xcode (obviously) but do not know the correct methods to change it in swift. Any ideas or feedback is much appreciated (Y)

推荐答案

//Use for size
func collectionView(collectionView: UICollectionView,
        layout collectionViewLayout: UICollectionViewLayout,
        sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {

    }
//Use for interspacing
    func collectionView(collectionView: UICollectionView,
        layout collectionViewLayout: UICollectionViewLayout,
        minimumInteritemSpacingForSectionAtIndex section: Int) -> CGFloat {
            return 1.0
    }

    func collectionView(collectionView: UICollectionView, layout
        collectionViewLayout: UICollectionViewLayout,
        minimumLineSpacingForSectionAtIndex section: Int) -> CGFloat {
            return 1.0
    }

//对于swift 3

// For swift 3

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

}

func collectionView(_ collectionView: UICollectionView,
                    layout collectionViewLayout: UICollectionViewLayout,
                    minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
    return 1.0
}

func collectionView(_ collectionView: UICollectionView, layout
    collectionViewLayout: UICollectionViewLayout,
                    minimumLineSpacingForSectionAt section: Int) -> CGFloat {
    return 1.0
}

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