khurram18

import UIKit

struct Person: ExpressibleByStringLiteral {
    typealias StringLiteralType = String
    init(stringLiteral value: StringLiteralType) {
        let components = value.components(separatedBy: .whitespaces)
        firstName = components[0]
        lastName = components[1]
    }
    let firstName: String

khurram18

// A protocol to be used in our atomic type
protocol Operatable {
    func add(other: Self) -> Self
}

// We will only limit our atomic type to Int, but it can be extended to use any other type
extension Int: Operatable {
    func add(other: Int) -> Int {
        return self + other
    }

khurram18

private func updateLabelPosition(_ cell: TableViewCell) {
  let point = view.convert(cell.contributerNameLabel.frame.origin, from: cell.contentView) // 1
  let ratio = point.y / viewHeight // 2
  let updatedConstraint = (ratio * constraintRange) + minimumConstraint // 3
  cell.nameLabelTopConstraint.constant = updatedConstraint // 4
}

khurram18

extension ViewController: UITableViewDelegate {
// other implementaion 
func scrollViewDidScroll(_ scrollView: UIScrollView) {
  updateVisibleLabelPositions()
}
private func updateVisibleLabelPositions() {
  guard let cells = tableView.visibleCells as? [TableViewCell] else { return }
  for cell in cells {
    updateLabelPosition(cell)
  }

khurram18

class GridView: UIView {
    
// Only override draw() if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func draw(_ rect: CGRect) {
    
    // Drawing code
    
    let borderLayer = gridLayer()
    borderLayer.path = UIBezierPath(rect: bounds).cgPath

khurram18

extension UIImageView {
    static var dataTask: URLSessionDataTask?
    func download(urlString: String) {
        guard let url = URL(string: urlString) else {
            print("\(urlString) is not a valid url")
            return
        }
        if let existingTask = UIImageView.dataTask {
            if existingTask.state == .running {
                existingTask.cancel()

khurram18

import android.view.animation.AccelerateInterpolator;
import android.view.animation.Interpolator;
import android.widget.TextView;

public class CountingHelper implements Runnable {

    private final long mDuration;
    private final int mStartingValue;
    private final int mFinalValue;