我跟隨了關於如何在導航控制器中實現自定義選項卡尋呼機的教程。我的設置看起來像這樣。在BuyStatsTapPager(右側)上,您應該看到您可以在「購買」和「比賽」之間切換。Swift - 無法通過導航控制器中的自定義選項卡尋呼機傳遞數據
這基本上通過實例取決於被點擊其子標籤視圖控制器的工作原理。問題是我也有這個類中的數據(我已經成功地爲前一個視圖控制器準備for segue方法設置'var selectedPlayerBuyStats'),我需要將它傳遞給實例化的控制器。
倒在'updateView()'的底部我以爲我有一個想法,因爲我可以訪問子視圖控制器的表格來設置它的大小和尺寸。我有線評論說,不工作。 IDE成功地從我需要設置的子視圖控制器中查找屬性,但是當我真正嘗試將子視圖控制器中的數據設置爲零時。有沒有另一種方法可以嘗試做到這一點?由於
import UIKit
class BuyStatsTabPager: BuyStats{
@IBOutlet var segmentedControl: UISegmentedControl!
@IBOutlet weak var scoreKey: UIBarButtonItem!
@IBOutlet weak var standings: UIBarButtonItem!
var selectedPlayerBuyStats: Player! = nil
override func viewDidLoad() {
navigationController?.navigationBar.barTintColor = UIColor(red: 27/255, green: 27/255, blue: 27/255, alpha: 1)
scoreKey.setTitleTextAttributes([NSFontAttributeName: UIFont(name: "Helvetica", size: 13.0)!], for: UIControlState.normal)
scoreKey.tintColor = UIColor.blue
standings.setTitleTextAttributes([NSFontAttributeName: UIFont(name: "Helvetica", size: 13.0)!], for: UIControlState.normal)
standings.tintColor = UIColor.blue
setupView()
}
private func setupView() {
setupSegmentedControl()
updateView()
}
private func setupSegmentedControl() {
// Configure Segmented Control
segmentedControl.removeAllSegments()
segmentedControl.insertSegment(withTitle: "Buy", at: 0, animated: false)
segmentedControl.insertSegment(withTitle: "Score", at: 1, animated: false)
segmentedControl.addTarget(self, action: #selector(selectionDidChange(_:)), for: .valueChanged)
segmentedControl.selectedSegmentIndex = 0
}
func selectionDidChange(_ sender: UISegmentedControl) {
updateView()
}
private lazy var viewContestTab: BuyStatsTab = {
// Load Storyboard
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
// Instantiate View Controller
var viewController = storyboard.instantiateViewController(withIdentifier: "BuyStatsTab") as! BuyStatsTab
// Add View Controller as Child View Controller
self.add(asChildViewController: viewController)
return viewController
}()
private lazy var viewRoundTab: BuyStatsContestTab = {
// Load Storyboard
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
// Instantiate View Controller
var viewController = storyboard.instantiateViewController(withIdentifier: "BuyStatsContestTab") as! BuyStatsContestTab
// Add View Controller as Child View Controller
self.add(asChildViewController: viewController)
return viewController
}()
private func add(asChildViewController viewController: UIViewController) {
// Add Child View Controller
addChildViewController(viewController)
// Add Child View as Subview
view.addSubview(viewController.view)
// Configure Child View
viewController.view.frame = view.bounds
viewController.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
// Notify Child View Controller
viewController.didMove(toParentViewController: self)
}
private func remove(asChildViewController viewController: UIViewController) {
// Notify Child View Controller
viewController.willMove(toParentViewController: nil)
// Remove Child View From Superview
viewController.view.removeFromSuperview()
// Notify Child View Controller
viewController.removeFromParentViewController()
}
private func updateView() {
if segmentedControl.selectedSegmentIndex == 0 {
//this is working so I have the data I need to pass
print(selectedPlayerBuyStats.p)
let position = viewRoundTab.tableView.contentOffset.y;
viewContestTab.tableView.contentOffset = CGPoint(x:0, y:position);
//but it isn't working this way
//viewContestTab.selectedPlayer = selectedPlayerBuyStats
remove(asChildViewController: viewRoundTab)
add(asChildViewController: viewContestTab)
} else {
print(selectedPlayerBuyStats.Name)
let position = viewContestTab.tableView.contentOffset.y;
viewRoundTab.tableView.contentOffset = CGPoint(x:0, y:position);
//viewRoundTab.selectedPlayer = selectedPlayerBuyStats
remove(asChildViewController: viewContestTab)
add(asChildViewController: viewRoundTab)
}
}
}
編輯:
所以我試圖使用賽格瑞在標籤尋呼機類,但仍然有問題做好準備。 1.我不知道如何檢查數據應該傳送到哪個孩子班。 2.即使我只是像這樣向第一個孩子班發送數據,對方仍然沒有數據。
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let buyStats = segue.destination as! BuyStatsTab
buyStats.selectedPlayer = selectedPlayer
}
這是第一個收件人子視圖控制器。
class BuyStatsTab: UIViewController, UITableViewDelegate, UITableViewDataSource{
@IBOutlet var tableView: UITableView!
let cellReuseIdentifier = "cell"
var stats = [BuyStat]()
var selectedPlayer: Player! = nil
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier)
self.tableView.rowHeight = 70.0
self.tableView.tableFooterView = UIView()
tableView.delegate = self
tableView.dataSource = self
stats = [
BuyStat(purchaseAmount: 0.0, category: "Pts", average: selectedPlayer.p, price: "$75"),
BuyStat(purchaseAmount: 0.0, category: "Reb", average: 6.5, price: "$175"),
BuyStat(purchaseAmount: 0.0, category: "Ast", average: 6.7, price: "$200"),
BuyStat(purchaseAmount: 0.0, category: "Stl", average: 2.2, price: "$300"),
BuyStat(purchaseAmount: 0.0, category: "Blk", average: 0.4, price: "$325"),
BuyStat(purchaseAmount: 0.0, category: "3pt", average: 3.3, price: "$325"),
BuyStat(purchaseAmount: 0.0, category: "TO", average: 2.4, price: "$350")]
tableView.reloadData()
}
selectedPlayer.p在數組中應該有數據。
您需要通過準備傳遞數據來傳遞數據,就像您通過傳遞var selectedPlayerBuyStats值一樣。 – MwcsMac
感謝您的回覆。我會嘗試,但我仍然有點困惑,因爲我沒有一個segue標識符。 –
嘗試使viewContestTab變量不是懶惰 – Timmy