回答編集履歴
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コメントへの回答
test
CHANGED
@@ -25,3 +25,279 @@
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ちなみにUIの変更はメインスレッドで行わなければならないので注意です。
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----------追記----------
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解答が長く、汚くなりそうなのでこちらでコメントします。
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こちらで再現しようとしてみました。
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![結果][WIDTH:600](298dc568af86d6374f2ad8a110839752.png)
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storyboardの部分は上のcollectionViewのtagが1、下のcollectionViewが2です。
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残りは察してください...
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```lang-swift
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import UIKit
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class viewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {
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@IBOutlet weak var myCollectionView: UICollectionView!
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@IBOutlet weak var secondCollection: UICollectionView!
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var object:Array<String> = []
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var object2:Array<String> = []
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override func viewDidLoad() {
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super.viewDidLoad()
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// Cellに使われるクラスを登録.
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myCollectionView.registerClass(CustomUICollectionViewCell.self, forCellWithReuseIdentifier: "MyCell")
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myCollectionView.delegate = self
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myCollectionView.dataSource = self
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secondCollection.registerClass(CustomUICollectionViewCell.self, forCellWithReuseIdentifier: "MyCell")
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secondCollection.delegate = self
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secondCollection.dataSource = self
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object = ["a","b","c"]
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object2 = ["1", "2", "3", "4"]
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}
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/*
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Cellが選択された際に呼び出される
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*/
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func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
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if collectionView.tag == 1 {
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println("\(indexPath.row):\(object[indexPath.row])")
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}
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else if collectionView.tag == 2 {
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println("\(indexPath.row):\(object2[indexPath.row])")
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}
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}
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/*
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Cellの総数を返す
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*/
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func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
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if collectionView.tag == 1 {
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return object.count
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}
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else if collectionView.tag == 2 {
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return object2.count
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}
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else {
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println("error")
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return 0
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}
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}
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/*
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Cellに値を設定する
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*/
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func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
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let cell : CustomUICollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("MyCell", forIndexPath: indexPath) as! CustomUICollectionViewCell
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if collectionView.tag == 1 {
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cell.textLabel?.text = object[indexPath.row]
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}
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else if collectionView.tag == 2 {
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cell.textLabel?.text = object2[indexPath.row]
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}
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return cell
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}
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@IBAction func changeData(sender: AnyObject) {
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println("call change")
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object[0] = "d"
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object[1] = "e"
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object[2] = "f"
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object.append("g")
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object2[0] = "10"
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object2[1] = "20"
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object2[2] = "30"
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object2[3] = "40"
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object2.append("50")
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println(object)
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println(object2)
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}
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@IBAction func reloadData(sender: AnyObject) {
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println("call refresh")
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self.myCollectionView.reloadData()
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self.secondCollection.reloadData()
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}
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}
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```
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```lang-swift
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import UIKit
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class CustomUICollectionViewCell : UICollectionViewCell{
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var textLabel : UILabel?
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required init(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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// UILabelを生成.
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textLabel = UILabel(frame: CGRectMake(0, 0, frame.width, frame.height))
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textLabel?.text = "nil"
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textLabel?.backgroundColor = UIColor.whiteColor()
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textLabel?.textAlignment = NSTextAlignment.Center
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// Cellに追加.
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self.contentView.addSubview(textLabel!)
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}
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}
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```
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299
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+
手抜き感満載ですが、こんなかんじで2つのcollectionViewを更新出来ました。
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300
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+
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301
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+
collectionViewのtagで動きを分けました。
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302
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303
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質問者様がどのように使っているのかわかりませんが、参考になれば。
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