在 Swift 中的表视图之间传递数据

Question

我正在尝试将数据从主表视图控制器传递到详细表视图控制器。我的详细信息中有很多行，上面标有“标签”。我认为我在指定部分中的行数时犯了一些错误，但不知道如何解决它。任何帮助将非常感激。提前致谢

这就是我将数据从主表视图传递到详细表视图的方式

import UIKit

class mainSectionViewController: UIViewController, UITableViewDelegate, UITableViewDataSource{

    @IBOutlet weak var mainSectionTableView: UITableView!

    var arrayOfSections : [Sections] = [Sections]()

    override func viewDidLoad() {
        super.viewDidLoad()

        self.setupmainSections()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()

    }

    func setupmainSections() {

        var EA503 = Sections (sectionHeader: "Equal Angle", sectionImage: "angle equal.gif", subSection: "50x50x5")

        var EA756 = Sections (sectionHeader: "Equal Angle", sectionImage: "angle equal.gif", subSection: "75x75x6")

        var UA50403 = Sections (sectionHeader: "Unequal Angle", sectionImage: "angle unequal.gif", subSection: "75x75x6")

        var UA90608 = Sections (sectionHeader: "Unequal Angle", sectionImage: "angle unequal.gif",subSection: "90x60x8")

        var UC10015 = Sections (sectionHeader: "Universal Column", sectionImage: "Column.gif", subSection: "UC10015")

        var UB15015 = Sections (sectionHeader: "Universal Beam", sectionImage: "beam.gif",subSection: "UB15015")

        var PFC100 = Sections (sectionHeader: "Parallel Flange Chanel", sectionImage: "PFC.gif", subSection: "PFC100")

        var CHS300 = Sections (sectionHeader: "Circular Hollow Section", sectionImage: "chs.gif", subSection: "CHS300")


        var SHS200 = Sections (sectionHeader: "Square Hollow Section", sectionImage: "shs.gif",subSection: "SHS200")

        var RHS50 = Sections (sectionHeader: "Rectangular Hollow Section", sectionImage: "rhs.gif", subSection: "RHS50")

        var EA253 = Sections (sectionHeader: "Equal Angle", sectionImage: "angle equal.gif", subSection: "25x25x3")

        arrayOfSections.append(EA503)
        arrayOfSections.append(EA756)
        arrayOfSections.append(UA50403)
        arrayOfSections.append(UA90608)
        arrayOfSections.append(UC10015)
        arrayOfSections.append(UB15015)
        arrayOfSections.append(PFC100)
        arrayOfSections.append(CHS300)
        arrayOfSections.append(SHS200)
        arrayOfSections.append(RHS50)
        arrayOfSections.append(EA253)
    }

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

        let mainsection = arrayOfSections[indexPath.row]
        let subsectionViewController : detailSectionViewController = self.storyboard?.instantiateViewControllerWithIdentifier("detailSectionViewController") as detailSectionViewController

        subsectionViewController.headerLabelText = mainsection.sectionheader
        subsectionViewController.sectionProperties = arrayOfSections

        presentViewController(subsectionViewController, animated: true, completion: nil)
     }
}

这是我的明细表视图

import UIKit

class detailSectionViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UISearchControllerDelegate {

    @IBOutlet weak var headerLabel: UILabel!

    @IBOutlet weak var subSectionTableView: UITableView!

    var headerLabelText : String?
    var sectionProperties : [Sections] = [Sections]()

    override func viewDidLoad() {
        super.viewDidLoad()

        self.headerLabel.text = headerLabelText
        headerLabel.backgroundColor = UIColor.lightGrayColor()
        headerLabel.layer.cornerRadius = 10.0
        headerLabel.clipsToBounds = true
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()

    }

    override func prefersStatusBarHidden() -> Bool {
        return true
    }

    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
       return sectionProperties.count
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        let subCell : detailSectionViewCell = tableView.dequeueReusableCellWithIdentifier("subCell") as detailSectionViewCell

        let subsection = sectionProperties[indexPath.row]

        if (subsection.sectionheader == headerLabelText) {

           subCell.setupSubCell(subsection.subsection)

        }

        return subCell
    }
}

Answer 1

你的问题在这里：

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
       return sectionProperties.count
    }

您已分配：

subsectionViewController.sectionProperties = arrayOfSections

嗯，arrayOfSections 有 11 个成员。 arrayOfSections.sectionHeader 有 8 个唯一成员（但总共有 11 个条目）。您将声明一个参数来计算唯一 sectionHeaders 的数量。