如何在swift中在两个部分中显示一个tableview数据

问题描述

我将 XLPagerTabStrip 用于细分

我想在两个段中显示一个 tableview 数据并排序，为此我使用下面的代码

SegmentViewController 代码：如果我添加 child_2.isSorted = false 然后错误

“UIViewController”类型的值没有成员“isSorted”

import UIKit
import xlpagertabstrip

class SegmentViewController: buttonbarPagerTabStripViewController {

@IBOutlet weak var testSeg: buttonbarView!

override func viewDidLoad() {
    super.viewDidLoad()
    // change selected bar color
    // Sets the background colour of the pager strip and the pager strip item
        settings.style.buttonbarBackgroundColor = .white
        settings.style.buttonbarItemBackgroundColor = .yellow

        // Sets the pager strip item font and font color
        settings.style.buttonbarItemFont = UIFont(name: "Helvetica",size: 15.0)!
        settings.style.buttonbarItemTitleColor = .gray

        changeCurrentIndexProgressive = { [weak self] (oldCell: buttonbarViewCell?,newCell: buttonbarViewCell?,progresspercentage: CGFloat,changeCurrentIndex: Bool,animated: Bool) -> Void in
              guard changeCurrentIndex == true else { return }
              oldCell?.label.textColor = .gray
              newCell?.label.textColor = .blue
        }
    // Do any additional setup after loading the view.
    
    }
override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        self.buttonbarView.frame = testSeg.frame
    }
override func viewControllers(for pagerTabStripController: PagerTabStripViewController) -> [UIViewController] {
let child_1 = UIStoryboard(name: "Main",bundle: nil).instantiateViewController(withIdentifier: "SegTableViewController")
let child_2 = UIStoryboard(name: "Main",bundle: nil).instantiateViewController(withIdentifier: "SegTableViewController")
    child_2.isSorted = false

return [child_1,child_2]
    
    
}        
}

SegTableViewController 代码：这里在两个部分中只显示 sortedArray 我需要在第一部分 sortedArray 和第二部分 namesArray .. 如何做到这一点.. 任何人都可以建议我>

 import UIKit
import xlpagertabstrip
class SegTableViewController: UIViewController,UITableViewDelegate,UITableViewDataSource,IndicatorInfoProvider {

var sortedArray = [String]()
var isSorted = true

func indicatorInfo(for pagerTabStripController: PagerTabStripViewController) -> IndicatorInfo {
    
    if isSorted{
        return IndicatorInfo(title: "Sorted")

    }else{
    return IndicatorInfo(title: "normal")
    }

}
@IBOutlet weak var tableView: UITableView!

var namesArray = ["afsdf","ddsfsdf","hjhgjh","trytryr","nvbmvnb","yuertyri","bmvmncb","jgfhk","ytuioi","sdfgsfdsh","mkhjgijik","gfuyru"]

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.
     sortedArray = namesArray.sorted { $0.localizedCaseInsensitiveCompare($1) == ComparisonResult.orderedDescending }
    self.tableView.register(UITableViewCell.self,forCellReuseIdentifier: "cell")

}
func tableView(_ tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
    if isSorted {
       return sortedArray.count
    }
    else{
    return namesArray.count
}
}
func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell") as! UITableViewCell
    
    if isSorted{
    cell.textLabel?.text = sortedArray[indexPath.row]

    }
    else{
        cell.textLabel?.text = namesArray[indexPath.row]
    }
    return cell
}
}

解决方法

你需要像这样投射你的视图控制器

override func viewControllers(for pagerTabStripController: PagerTabStripViewController) -> [UIViewController] {
    let child_1 = UIStoryboard(name: "Main",bundle: nil).instantiateViewController(withIdentifier: "SegTableViewController")
    let child_2 = UIStoryboard(name: "Main",bundle: nil).instantiateViewController(withIdentifier: "SegTableViewController")
    (child_2 as? SegTableViewController).isSorted = false
    return [child_1,child_2]
}

此外，不需要用于显示数据的数组。像这样只使用一个数组 namesArray

override func viewDidLoad() {
    super.viewDidLoad()
    
    // Do any additional setup after loading the view.
    if isSorted {
        namesArray = namesArray.sorted { $0.localizedCaseInsensitiveCompare($1) == ComparisonResult.orderedDescending }
    }
    self.tableView.register(UITableViewCell.self,forCellReuseIdentifier: "cell")
    
}