OscarApeland

//
//  ContentView.swift
//  DynamicRepro
//
//  Created by Oscar Apeland on 13/06/2023.
//

import SwiftUI
import UIKit

OscarApeland

protocol CustomSubviewDelegate: class {
    func customSubview(_ customSubview: CustomSubview, didEnterText text: String)
}

class CustomSubview: UIView {
    weak var delegate: CustomSubviewDelegate?
    
    // init and setup and stuff 
    
    @objc func textFieldDidChange(_ textField: UITextField) {

OscarApeland

extension UIView {
    func edgeConstraints(to view: UIView, insets: UIEdgeInsets = .zero) -> [NSLayoutConstraint] {
        return [
            topAnchor.constraint(equalTo: view.topAnchor, constant: insets.top),
            leftAnchor.constraint(equalTo: view.leftAnchor, constant: insets.left),
            rightAnchor.constraint(equalTo: view.rightAnchor, constant: -insets.right),
            bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: -insets.bottom)
        ]
    }
    

OscarApeland

import UIKit

extension UICollectionView {
    func register<CellClass: UICollectionReusableView>(_ cellClass: CellClass.Type, ofKind kind: String? = nil) {
        let cellId = String(describing: type(of: cellClass.classForCoder()))
        
        if let kind = kind {
            register(cellClass, forSupplementaryViewOfKind: kind, withReuseIdentifier: cellId)
        } else if let collectionViewCellClass = cellClass as? UICollectionViewCell.Type {
            register(collectionViewCellClass, forCellWithReuseIdentifier: cellId)

OscarApeland

NotificationCenter.default.addObserver(forName: .UIKeyboardWillChangeFrame, object: nil, queue: .main) { [weak self] (notification) in
    guard let strongSelf = self,
        let targetFrame = notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? CGRect,
        let animationCurve = notification.userInfo?[UIKeyboardAnimationCurveUserInfoKey] as? NSNumber,
        let animationDuration = notification.userInfo?[UIKeyboardAnimationDurationUserInfoKey] as? NSNumber else {
            return
        }
    
    strongSelf.view.layoutIfNeeded()
    strongSelf.proceedButtonBottomConstraint.constant = -UIScreen.main.bounds.intersection(targetFrame).height

OscarApeland

Introduction

UIKits API for registering UINibs to UICollectionViews looks bad. Just look at this.

sizeCollectionView.register(UINib(nibName: "SearchFilterSizeCell", bundle: nil), forCellWithReuseIdentifier: "sizeCell")

Using them again is even worse;

let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "sizeCell", for: indexPath) as! SearchFilterSizeCell