vinczebalazs

extension UIViewController {
    func embed(_ vc: UIViewController, in _containerView: UIView? = nil) {
        let containerView: UIView = _containerView ?? view // Use the whole view if no container view is provided.
        containerView.addSubview(vc.view)
        NSLayoutConstraint.activate([
            vc.view.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 0),
            vc.view.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: 0),
            vc.view.topAnchor.constraint(equalTo: containerView.topAnchor, constant: 0),
            vc.view.bottomAnchor.constraint(equalTo: containerView.bottomAnchor, constant: 0)
        ])

vinczebalazs

extension UIView {
    func superview<T>(of type: T.Type) -> T? {
        return superview as? T ?? superview.flatMap { $0.superview(of: type) }
    }
}

// Example usage:

func textFieldDidBeginEditing(_ textField: UITextField) {
    // Get the cell containing the textfield.

vinczebalazs

extension NSAttributedString {
    func highlighting(_ substring: String, using color: UIColor) -> NSAttributedString {
        let attributedString = NSMutableAttributedString(attributedString: self)
        attributedString.addAttribute(.foregroundColor, value: color, range: (self.string as NSString).range(of: substring))
        return attributedString
    }
}

// Usage:

vinczebalazs

extension CGSize {
    func addingPadding(width: CGFloat, height: CGFloat) -> CGSize {
        CGSize(width: self.width + width, height: self.height + height)
    }
}

// Usage:

class PaddedButton: UIButton {
    override var intrinsicContentSize: CGSize {

vinczebalazs

extension Array {
    subscript(indexPath: IndexPath) -> Element {
        self[indexPath.row]
    }
}

vinczebalazs

import Foundation

extension Array {
    
    subscript(indexPath: IndexPath) -> Element {
        self[indexPath.row]
    }
    
}

vinczebalazs

extension UIViewController {
    
    func presentAsSheet(_ vc: UIViewController, height: CGFloat) {
        let presentationController = SheetModalPresentationController(presentedViewController: vc,
                                                                      presenting: self,
                                                                      height: height)
        vc.transitioningDelegate = presentationController
        vc.modalPresentationStyle = .custom
        present(vc, animated: true)
    }

vinczebalazs

let presentationController = SheetModalPresentationController(presentedViewController: vc,
                                                                      presenting: self,
                                                                      height: height)
vc.transitioningDelegate = presentationController
vc.modalPresentationStyle = .custom
present(vc, animated: true)

vinczebalazs

interactor.completionSpeed = max(1, velocity / (gestureView.frame.height * (1 / interactor.duration)))

vinczebalazs

import UIKit

extension UIView {
    
    var allSubviews: [UIView] {
        subviews + subviews.flatMap { $0.allSubviews }
    }
    
    func firstSubview<T: UIView>(of type: T.Type) -> T? {
        allSubviews.first { $0 is T } as? T