集合视图内的两个定向单元格，如何获取单元格标题？

Question

您好，我想在 UICollectionView 中获取单元格标题，当我单击 UICollectionView 项目时，我在 UICollectionView 单元格中有 1 个单元格有类别数组我想获取单元格标题。我的代码在这里。

视图控制器单元格

import UIKit

class ViewController: UIViewController {
    var categories = ["A", "B", "C", "D", "E"]
}

extension ViewController : UITableViewDelegate { }

extension ViewController : UITableViewDataSource {

    func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
         return categories[section]

    }

    func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return categories.count
    }

    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("cell") as! CategoryRow
       return cell
    }

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

        print(indexPath.row)

    }

}

UICollectionView


import UIKit

class CategoryRow : UITableViewCell {
    @IBOutlet weak var collectionView: UICollectionView!
}

extension CategoryRow : UICollectionViewDataSource {


    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 12
    }

    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCellWithReuseIdentifier("videoCell", forIndexPath: indexPath) as! VideoCell
        return cell
    }

}

extension CategoryRow : UICollectionViewDelegateFlowLayout {


    func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
        let itemsPerRow:CGFloat = 4
        let hardCodedPadding:CGFloat = 5
        let itemWidth = (collectionView.bounds.width / itemsPerRow) - hardCodedPadding
        let itemHeight = collectionView.bounds.height - (2 * hardCodedPadding)
        return CGSize(width: itemWidth, height: itemHeight)

    }


    //MARK :- UICollectionViewDelegate
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {


    print(indexPath.row) // HERE gives collection view number when clicked BUT I WANT TO Get cell title which inside categories ARRAY example: A/3, B/5



    }




}

我标记的底部

print(indexPath.row) // 点击此处给出集合视图编号，但我想获取类别数组中的单元格标题，例如：A/3、B/5

我想在那里看到行动，谢谢你的帮助！

Answer 1

我认为你需要为你的班级添加标题属性

CategoryRow : UITableViewCell {
    var title: String?
    @IBOutlet weak var collectionView: UICollectionView!
}

你需要在CategoryRow中添加方法

func prepareForReuse() {
    super.prepareForReuse()
    title = nil
 }

在ViewController 中将此标题设置为单元格

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("cell") as! CategoryRow
        let titleFromCategories = categories[indexPath.row] as? String
        cell.title = titleFromCategories
       return cell
    }

在CategoryRow 中实现如下

 func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
        let yourString = title + String(format: "/%d", indexPath.row)

        print(yourString) // HERE gives collection view number when clicked BUT I WANT TO Get cell title which inside categories ARRAY example: A/3, B/5

 }

Answer 2

从您的数组中获取标题，如下所示：

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
     let title = String(format: "%@/%d", categories[indexPath.row], indexPath.row) 
     print(title)
}