ios – All CollectionViewCell peak equal to largest cell label dynamic content material in swift

All CollectionViewCell peak equal to largest cell label dynamic content material full code in swif

import UIKit

class YourViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {

@IBOutlet weak var collectionView: UICollectionView!

var knowledge: [String] = ["Lorem Ipsum is simply dummy text of the printing and typesetting industry.", "Short text", "Another long text for testing purposes. This can be of variable length depending on the data."]

var cellHeights: [CGFloat] = []

override func viewDidLoad() {
    tremendous.viewDidLoad()

    // Register your customized cell
    collectionView.register(YourCustomCell.self, forCellWithReuseIdentifier: "cell")

    // Calculate cell heights
    for textual content in knowledge {
        let peak = heightForText(textual content, font: UIFont.systemFont(ofSize: 17), width: collectionView.body.width - 20)
        cellHeights.append(peak)
    }
}

// MARK: - UICollectionViewDataSource

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection part: Int) -> Int {
    return knowledge.depend
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! YourCustomCell
    cell.textLabel.textual content = knowledge[indexPath.item]
    return cell
}

// MARK: - UICollectionViewDelegateFlowLayout

func collectionView(_ collectionView: UICollectionView, structure collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    let peak = cellHeights[indexPath.item]
    return CGSize(width: collectionView.body.width, peak: peak)
}

// Perform to calculate the peak of the textual content
func heightForText(_ textual content: String, font: UIFont, width: CGFloat) -> CGFloat {
    let dimension = CGSize(width: width, peak: .greatestFiniteMagnitude)
    let choices = NSStringDrawingOptions.usesFontLeading.union(.usesLineFragmentOrigin)
    let attributes = [NSAttributedString.Key.font: font]
    let rectangleHeight = NSString(string: textual content).boundingRect(with: dimension, choices: choices, attributes: attributes, context: nil).peak
    return ceil(rectangleHeight)
}

}