質問編集履歴
2
コードの追加
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@@ -2,4 +2,140 @@
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並べ替えられる機能は実装できたのですが、並べ替えが保存されずビルドし直すと、並べ替え前の順番に戻ってしまっています。
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4
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並び順を保持する方法は何かありませんか？
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-
ご教示よろしくお願いします。
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ご教示よろしくお願いします。
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```swift
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import UIKit
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class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
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var collectionView: UICollectionView?
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var longPressGesture: UILongPressGestureRecognizer?
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var selectedIndexPath: NSIndexPath?
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override func viewDidLoad() {
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super.viewDidLoad()
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self.setupSubviews()
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self.autolayoutSubviews()
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self.navigationItem.rightBarButtonItem = self.editButtonItem()
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}
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func setupSubviews() {
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let flowLayout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
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flowLayout.minimumInteritemSpacing = 10.0
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flowLayout.minimumLineSpacing = 10.0
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flowLayout.sectionInset = UIEdgeInsets(top: 10.0, left: 10.0, bottom: 10.0, right: 10.0)
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flowLayout.itemSize = CGSizeMake(300.0, 100.0)
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self.collectionView = UICollectionView(frame: CGRectZero, collectionViewLayout: flowLayout)
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self.collectionView!.translatesAutoresizingMaskIntoConstraints = false
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self.collectionView!.dataSource = self
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self.collectionView!.delegate = self
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self.collectionView!.registerClass(FirstCell.self, forCellWithReuseIdentifier: "FirstCell")
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self.collectionView!.registerClass(SecondCell.self, forCellWithReuseIdentifier: "SecondCell")
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self.collectionView!.registerClass(ThirdCell.self, forCellWithReuseIdentifier: "ThirdCell")
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self.collectionView!.backgroundColor = UIColor.whiteColor()
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self.view.addSubview(self.collectionView!)
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longPressGesture = UILongPressGestureRecognizer(target: self, action:
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#selector(ViewController.handleLongGesture(_:)))
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longPressGesture?.minimumPressDuration = 0.5
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self.longPressGesture!.enabled = false
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self.collectionView?.addGestureRecognizer(self.longPressGesture!)
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}
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func autolayoutSubviews() {
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self.collectionView!.topAnchor.constraintEqualToAnchor(self.view.topAnchor).active = true
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self.collectionView!.leadingAnchor.constraintEqualToAnchor(self.view.leadingAnchor).active = true
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self.collectionView!.trailingAnchor.constraintEqualToAnchor(self.view.trailingAnchor).active = true
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self.collectionView!.bottomAnchor.constraintEqualToAnchor(self.view.bottomAnchor).active = true
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}
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override func setEditing(editing: Bool, animated: Bool) {
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super.setEditing(editing, animated: animated)
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self.collectionView!.allowsMultipleSelection = editing
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let indexPaths: [NSIndexPath] = self.collectionView!.indexPathsForVisibleItems()
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for indexPath in indexPaths {
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self.collectionView!.deselectItemAtIndexPath(indexPath, animated: false)
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let cell: UICollectionViewCell = self.collectionView!.cellForItemAtIndexPath(indexPath)!
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}
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if editing {
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self.longPressGesture!.enabled = true
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}
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else {
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self.longPressGesture!.enabled = false
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}
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}
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func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
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return 3
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}
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func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
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let cellTypeNumber = indexPath.item % 3
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switch cellTypeNumber {
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case 0:
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let cell1 = collectionView.dequeueReusableCellWithReuseIdentifier("FirstCell", forIndexPath: indexPath) as! FirstCell
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cell1.backgroundColor = UIColor.redColor()
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return cell1
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case 1:
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let cell2 = collectionView.dequeueReusableCellWithReuseIdentifier("SecondCell", forIndexPath: indexPath) as! SecondCell
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cell2.backgroundColor = UIColor.yellowColor()
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return cell2
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default:
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let cell3 = collectionView.dequeueReusableCellWithReuseIdentifier("ThirdCell", forIndexPath: indexPath) as! ThirdCell
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cell3.backgroundColor = UIColor.greenColor()
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return cell3
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}
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}
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func collectionView(collectionView: UICollectionView, moveItemAtIndexPath sourceIndexPath: NSIndexPath, toIndexPath destinationIndexPath: NSIndexPath) {
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}
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func handleLongGesture(gesture: UILongPressGestureRecognizer) {
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switch(gesture.state) {
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case UIGestureRecognizerState.Began:
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guard let selectedIndexPath = collectionView?.indexPathForItemAtPoint(gesture.locationInView(collectionView!)) else {
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break
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}
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collectionView?.beginInteractiveMovementForItemAtIndexPath(selectedIndexPath)
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case UIGestureRecognizerState.Changed:
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collectionView?.updateInteractiveMovementTargetPosition(gesture.locationInView(gesture.view!))
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case UIGestureRecognizerState.Ended:
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collectionView?.endInteractiveMovement()
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default:
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collectionView?.cancelInteractiveMovement()
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}
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}
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}
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```
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1
質問の修正
title
CHANGED
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File without changes
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body
CHANGED
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@@ -1,6 +1,5 @@
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|
|
1
1
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CollectionViewのcellの並べ替えを保存したいです。
|
|
2
2
|
|
|
3
3
|
並べ替えられる機能は実装できたのですが、並べ替えが保存されずビルドし直すと、並べ替え前の順番に戻ってしまっています。
|
|
4
|
-
|
|
4
|
+
並び順を保持する方法は何かありませんか？
|
|
5
|
-
|
|
6
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-
|
|
5
|
+
ご教示よろしくお願いします。
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