Question

我有像这样的JSON文件

{
  "dicts": [
    {
      "main": "",
      "note1": "",
      "note2": "",
      "note3": "",
      "note4": ""
    },
    {
      "main": "",
      "note1": "",
      "note2": "",
      "note3": "",
      "note4": "",
      "note5": ""
    },
    {
      "main": "",
      "note1": "",
      "note2": ""
    }
  ]
}

我的应用每个view controllers有collection view个collection view。在第一个main中，我将为每个cell显示JSON数据main，当我点击note时，我无法为相应的{{1}设置main数据每个cell中的内容。我只能调用任何一个note值。

型号：

struct SecPage {
    var note1:String?
    var note1:String?
    var note2:String?
    var note3:String?
    var note4:String?
    var note5:String?
}

static func downSec () -> [SecPage] {
    let jsonFile = Bundle.main.url(forResource: "info", withExtension: "json")
    let jsonData = try? Data(contentsOf: jsonFile!)
    var noteArray = [SecPage]()

    do{
        if let jsonResult = try JSONSerialization.jsonObject(with: jsonData!, options: .mutableContainers) as? Dictionary<String,AnyObject>{
            let name = jsonResult["dicts"] as? [Dictionary<String,AnyObject>]
            for note in name!{
                let note1 = note["note1"] as? String
                let note2 = note["note2"] as? String
                let note3 = note["note3"] as? String
                let note4 = note["note4"] as? String
                let note5 = note["note5"] as? String
                let noteinfo = SecPage(note1: note1 ,note2:    note2,note3: note3, note4: note4, note5: note5, note6: note6)
                noteArray.append(noteinfo)    }}  } catch{print("note not found")}
    return noteArray
}

查看

class CollectionViewCell2: UICollectionViewCell {
    @IBOutlet weak var img: UIImageView!
    @IBOutlet weak var names: UILabel!

    func updateUIsec(data:dataObj)  {
        names.text = data.note1
    }
}

当我只能在name.text中输入一个数据以及如何有效地使用Model class检索json文件并发送到view时，如何在单元格中更新。

Answer 1

我仍然不确定这是否是您正在寻找的，您的问题太广泛且难以理解。评论答案，我会根据需要更新答案;）

VC1：

class VC1: UIViewController, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
    @IBOutlet weak var collectionView: UICollectionView!
    var modelData = [SecPage]()
    var selectedItem: SecPage?

    override func viewDidLoad() {
        super.viewDidLoad()

        collectionView.delegate   = self
        collectionView.dataSource = self

        //collectionView.register... // Register UICollectionView cell subclass
        modelData = SecPage.downSec()
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

        let secPage = modelData[indexPath.row]
        let cell = collectionView.dequeue...
        cell.textLabel.text = secPage.main

        return cell
    }

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

        if let destination = segue.destination as? VC2{
            destination.selectedItem = selectedItem
        }
    }

    override func collectionView(_ collectionView: UICollectionView, didHighlightItemAt indexPath: IndexPath) {

        selectedItem = modelData[indexPath.row]
        performSegue...
    }
}

VC2：

class VC2: UIViewController, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
    @IBOutlet weak var collectionView: UICollectionView!
    var selectedItem: SecPage? = nil

    override func viewDidLoad() {
        super.viewDidLoad()

        collectionView.delegate   = self
        collectionView.dataSource = self

        //collectionView.register... // Register UICollectionView cell subclass
        modelData = SecPage.downSec()
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

        let cell = collectionView.dequeue...
        cell.updateUIsec(data: selectedItem!)

        return cell
    }
}

细胞：

class CollectionViewCell2: UICollectionViewCell {
    @IBOutlet weak var img: UIImageView!
    @IBOutlet weak var names: UILabel!

    func updateUIsec(data: SecPage)  {
        names.text = data.note1
    }
}

如何在swift中为2个集合视图解析Json文件？

1 个答案: