54 Add additional and delete functions in UITableView

Swift3.0 // // ViewController.swift // UIKit054_3.0 // // Created by KimikoWatanabe on 2016/08/21. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource { var myCollectionView : UICollectionView! override func viewDidLoad() { super.viewDidLoad() // CollectionViewのレイアウトを生成. let layout = UICollectionViewFlowLayout() // Cell一つ一つの大きさ. layout.itemSize = CGSize(width:50, height:50) // Cellのマージン. layout.sectionInset = UIEdgeInsetsMake(16, 16, 32, 16) // セクション毎のヘッダーサイズ. layout.headerReferenceSize = CGSize(width:100,height:30) // CollectionViewを生成. myCollectionView = UICollectionView(frame: self.view.frame, collectionViewLayout: layout) // Cellに使われるクラスを登録. myCollectionView.register(CustomUICollectionViewCell.self, forCellWithReuseIdentifier: "MyCell") myCollectionView.delegate = self myCollectionView.dataSource = self self.view.addSubview(myCollectionView) } /* Cellが選択された際に呼び出される */ func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { print("Num: \(indexPath.row)") } /* Cellの総数を返す */ func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { return 100 } /* Cellに値を設定する */ func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { let cell : CustomUICollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "MyCell", for: indexPath) as! CustomUICollectionViewCell cell.textLabel?.text = indexPath.row.description return cell } } CustomUICollectionViewCell.swift // // CustomUICollectionViewCell.swift // UIKit054_3.0 // // Created by KimikoWatanabe on 2016/08/21. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class CustomUICollectionViewCell : UICollectionViewCell{ var textLabel : UILabel? required init(coder aDecoder: NSCoder) { super.init(coder: aDecoder)! } override init(frame: CGRect) { super.init(frame: frame) // UILabelを生成. textLabel = UILabel(frame: CGRect(x:0, y:0, width:frame.width, height:frame.height)) textLabel?.text = "nil" textLabel?.backgroundColor = UIColor.white textLabel?.textAlignment = NSTextAlignment.center // Cellに追加. self.contentView.addSubview(textLabel!) } } Swift 2.3 UIViewController.swift // // ViewController.swift // UIKit054_2.3 // // Created by KimikoWatanabe on 2016/08/21. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource { var myCollectionView : UICollectionView! override func viewDidLoad() { super.viewDidLoad() // CollectionViewのレイアウトを生成. let layout = UICollectionViewFlowLayout() // Cell一つ一つの大きさ. layout.itemSize = CGSizeMake(50, 50) // Cellのマージン. layout.sectionInset = UIEdgeInsetsMake(16, 16, 32, 16) // セクション毎のヘッダーサイズ. layout.headerReferenceSize = CGSizeMake(100,30) // CollectionViewを生成. myCollectionView = UICollectionView(frame: self.view.frame, collectionViewLayout: layout) // Cellに使われるクラスを登録. myCollectionView.registerClass(CustomUICollectionViewCell.self, forCellWithReuseIdentifier: "MyCell") myCollectionView.delegate = self myCollectionView.dataSource = self self.view.addSubview(myCollectionView) } /* Cellが選択された際に呼び出される */ func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) { print("Num: \(indexPath.row)") } /* Cellの総数を返す */ func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { return 100 } /* Cellに値を設定する */ func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { let cell : CustomUICollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("MyCell", forIndexPath: indexPath) as! CustomUICollectionViewCell cell.textLabel?.text = indexPath.row.description return cell } } CustomUICollectionViewCell.swift // // CustomUICollectionViewCell.swift // UIKit054_2.3 // // Created by KimikoWatanabe on 2016/08/21. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class CustomUICollectionViewCell : UICollectionViewCell{ var textLabel : UILabel? required init(coder aDecoder: NSCoder) { super.init(coder: aDecoder)! } override init(frame: CGRect) { super.init(frame: frame) // UILabelを生成. textLabel = UILabel(frame: CGRectMake(0, 0, frame.width, frame.height)) textLabel?.text = "nil" textLabel?.backgroundColor = UIColor.whiteColor() textLabel?.textAlignment = NSTextAlignment.Center // Cellに追加. self.contentView.addSubview(textLabel!) } } 2.3と3.0の差分 UIColorの参照方法が変更(UIColor.grayColor()->UIColor.gray) CGRect,CGPointの初期化方法の変更(CGRectMake,CGPointMakeの廃止) NSIndexPathの廃止、IndexPathに変更 UICollectionViewDelegateのメソッドの引数が変更

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