使集合视图向左和向右滚动

Question

我按照本link中的教程进行操作。目前，集合视图向上和向下滚动。有什么办法可以让集合视图左右滚动吗？我想在左边显示第一个单元格，在右边显示最后一个单元格。

import Foundation
import UIKit

class ChatViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {

let reuseIdentifier = "cell" // also enter this string as the cell identifier in the storyboard
var items = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48"]


// MARK: - UICollectionViewDataSource protocol
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
 return self.items.count
}

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

    // get a reference to our storyboard cell
    let cell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath)  as! MyCollectionViewCell

    // Use the outlet in our custom class to get a reference to the UILabel in the cell
    cell.myLabel.text = self.items[indexPath.item]
    cell.backgroundColor = UIColor(red: 102/256, green: 255/256, blue: 255/256, alpha: 0.66)
    cell.layer.borderWidth = 1
    cell.layer.cornerRadius = 35
    return cell
}


// MARK: - UICollectionViewDelegate protocol

func collectionView(collectionView: UICollectionView, didSelectItemAt indexPath: NSIndexPath) {
    // handle tap events
    print("You selected cell #\(indexPath.item)!")
}

}

Answer 1

设置集合视图的方向非常简单。我猜这就是你要找的东西。只需将方向更改为水平。

Answer 2

UICollectionViewFlowLayout - ＆gt;设置滚动方向

https://developer.apple.com/reference/uikit/uicollectionviewflowlayout/1617720-scrolldirection