我是编程新手,有问题。我在 TableView 中使用解析来解析我的数组。当选择该行时,我想在另一个 View Controller 上连接到 textView。 tableview 工作正常,但我无法将文本获取到 textView。
表VC:
import UIKit
import Parse
class ThirdTableVC: UITableViewController {
@IBOutlet weak var refresherQuotes: UIRefreshControl!
@IBOutlet var quoteTable: UITableView!
var selectedQuote: PFObject?
var quoteItems = [PFObject]()
override func viewDidLoad() {
super.viewDidLoad()
}
@IBAction func updateQuotesResults(_ sender: UIRefreshControl) {
fetchQuotesData()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
loadQuoteTexts(selectedQuote: selectedQuote)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return quoteItems.count
}
func fetchQuotesData() {
let quotesQuery = PFQuery(className: "TotalTest")
quotesQuery.whereKey("Subcategory", equalTo: selectedQuote ?? nil)
quotesQuery.findObjectsInBackground { (objects, error) in
if let realCategoryObjects = objects {
self.quoteItems = realCategoryObjects
self.tableView.reloadData()
self.refresherQuotes.endRefreshing()
}
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let quoteCell = tableView.dequeueReusableCell(withIdentifier: "quoteCell", for: indexPath)
let quoteItem = quoteItems[indexPath.row]
let quoteUserTitle = quoteItem.object(forKey: "TextQuote") as? String
quoteCell.textLabel?.text = quoteUserTitle
return quoteCell
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "showQuoteDetail" {
if let indexPath = tableView.indexPathForSelectedRow {
let quoteobject = quoteItems[indexPath.row] as? NSDate
let quoteController = (segue.destination as! UINavigationController).topViewController as! DetailViewController
quoteController.detailItem = quoteobject
quoteController.navigationItem.leftBarButtonItem = splitViewController?.displayModeButtonItem
quoteController.navigationItem.leftItemsSupplementBackButton = true
}
}
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("Row tapped: \(indexPath.row)")
let selectedQuotes: PFObject = quoteItems[indexPath.row]
let FourthVC = self.storyboard?.instantiateViewController(withIdentifier: "FourthViewController") as! FourthViewController
FourthVC.fourthTextView.text = quoteItems[indexPath.row] as? String
self.navigationController?.pushViewController(FourthVC, animated: true)
}
func loadQuoteTexts(selectedQuote: PFObject!) {
let quoteQuery = PFQuery(className: "TotalQuote")
quoteQuery.whereKey("QuoteSubs", equalTo: selectedQuote ?? nil)
quoteQuery.includeKey("QuoteSubs")
quoteQuery.findObjectsInBackground { (result: [PFObject]?, error) in
if let searchQuoteResults = result {
self.quoteItems = searchQuoteResults
self.quoteTable.reloadData()
}
}
}
}
我该如何改变这个? viewController 与 textView:
import UIKit
import Parse
class FourthViewController: UIViewController {
var getQuote: PFObject?
@IBOutlet weak var fourthTextView: UITextView!
@IBOutlet weak var fourthLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
fourthLabel.text! = getQuote as! String
fourthTextView.text! = getQuote as! String
}
}
请帮我传递文字
最佳答案
如果你使用pushViewController,就这样做,在selectRowAt中
let MainStory: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let desVC = MainStory.instantiateViewController(withIdentifier: "FourthViewController") as! FourthViewController
现在传递您的文本
desVC.getText = "here goes your text u want to pass"
第四 View Controller 设置你的变量
var getText = String()
这样你终于可以使用
self.navigationController?.pushViewController(desVC, animated: true)
因此它将传递您之前使用 desVC.getSomething 添加的所有参数
在 FourthViewController 中,您只需要使用 getText。
关于ios - 从 TableVC 解析到其他 viewController 中的 textView swift,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47331241/