swift storyboard九宫格

您可以通过使用UICollectionView来实现swift storyboard中的九宫格布局。首先，您需要在storyboard中创建一个UICollectionView，并将其与view controller关联。然后，您需要设置集合视图的数据源和委托以填充单元格，并设置单元格的大小和间距以创建九宫格布局。您还可以在单元格中添加图像、文本或其他控件以显示内容。

以下是一个简单的示例代码，展示如何在swift storyboard中实现九宫格布局：

import UIKit

class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {

    @IBOutlet weak var collectionView: UICollectionView!

    let itemsPerRow: CGFloat = 3
    let sectionInsets = UIEdgeInsets(top: 20.0, left: 10.0, bottom: 20.0, right: 10.0)

    let images = [UIImage(named: "image1"), UIImage(named: "image2"), UIImage(named: "image3"), UIImage(named: "image4"), UIImage(named: "image5"), UIImage(named: "image6"), UIImage(named: "image7"), UIImage(named: "image8"), UIImage(named: "image9")]

    override func viewDidLoad() {
        super.viewDidLoad()

        collectionView.dataSource = self
        collectionView.delegate = self
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return images.count
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! ImageCollectionViewCell
        cell.imageView.image = images[indexPath.row]
        return cell
    }

    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        let paddingSpace = sectionInsets.left * (itemsPerRow + 1)
        let availableWidth = view.frame.width - paddingSpace
        let widthPerItem = availableWidth / itemsPerRow
        return CGSize(width: widthPerItem, height: widthPerItem)
    }

    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
        return sectionInsets
    }

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

}

class ImageCollectionViewCell: UICollectionViewCell {

    @IBOutlet weak var imageView: UIImageView!

}

在这个例子中，我们使用UICollectionView来展示一个九宫格图像布局。我们设置了`itemsPerRow`为3，这意味着每行有3个图像。我们还使用`sectionInsets`来设置单元格之间的间距。最后，我们将`UICollectionViewDataSource`和`UICollectionViewDelegateFlowLayout`协议添加到我们的视图控制器中，并实现了必要的方法来填充单元格并设置布局。