Ecco un esempio funzionante. Si utilizza la visualizzazione di scorrimento contentInset e scrollIndicatorInsets proprietà per evitare la tastiera quando viene visualizzata. Devi registrarti per le notifiche della tastiera.Usa le informazioni nelle notifiche per determinare le dimensioni della tastiera - non sai mai quale sarà.
L'utilizzo di inset di contenuto è il modo corretto di gestirlo per le visualizzazioni di scorrimento. Se successivamente necessario scorrere la riga di modifica in vista, utilizzare UITableView.scrollToRowAtIndexPath (_ :, atScrollPosition :, animata :)
Si noti che la fa la cosa giusta quando l'utente si nasconde/mostra la barra completamenti.
import UIKit
import CoreGraphics
// our Cell class
class Cell : UITableViewCell
{
// cell reuse identifier for table view
static let Identifier = "Cell"
// the object the cell represents/displays. Could be anything you like
var value:AnyObject? {
didSet {
// update our text field when our cell value is set.
self.textField.text = value as? String
}
}
// use a text field to display our contents, since that allows editing and showing the keyboard
lazy var textField:UITextField = {
let textField = UITextField()
self.contentView.addSubview(textField)
return textField
}()
override func layoutSubviews() {
super.layoutSubviews()
self.textField.frame = contentView.bounds.insetBy(dx: 20, dy: 4)
}
}
// table view data source class
class DataSource : NSObject, UITableViewDataSource
{
var numberOfRows:Int { return items.count }
let items = [ "Seoul", "São Paulo", "Bombay", "Jakarta", "Karachi", "Moskva", "Istanbul", "Mexico", "Shanghai", "Tokyo", "New" York, "Bangkok", "Beijing", "Delhi", "London", "Hong Kong", "Cairo", "Tehran", "Bogota", "Bandung", "Tianjin", "Lima", "Rio de Janeiro", "Lahore", "Bogor", "Santiago", "St Petersburg", "Shenyang", "Calcutta", "Wuhan" ]
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return numberOfRows
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCellWithIdentifier(Cell.Identifier) as? Cell ?? Cell()
cell.value = items[ indexPath.row ]
return cell
}
}
class ViewController : UIViewController
{
override func viewDidLoad() {
super.viewDidLoad()
// register for notifications when the keyboard appears:
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillShow:", name: UIKeyboardWillChangeFrameNotification, object: nil)
}
override func viewDidLayoutSubviews() {
tableView.frame = view.bounds
}
lazy var tableView:UITableView = {
let tableView = UITableView()
self.view.addSubview(tableView)
tableView.dataSource = self.dataSource
tableView.delegate = self
return tableView
}()
lazy var dataSource : DataSource = DataSource()
// Handle keyboard frame changes here.
// Use the CGRect stored in the notification to determine what part of the screen the keyboard will cover.
// Adjust our table view's contentInset and scrollIndicatorInsets properties so that the table view content avoids the part of the screen covered by the keyboard
@objc func keyboardWillShow(note:NSNotification)
{
// read the CGRect from the notification (if any)
if let newFrame = (note.userInfo?[ UIKeyboardFrameEndUserInfoKey ] as? NSValue)?.CGRectValue() {
let insets = UIEdgeInsetsMake(0, 0, newFrame.height, 0)
tableView.contentInset = insets
tableView.scrollIndicatorInsets = insets
}
}
}
// need to conform to UITableViewDelegate protocol since we are the table view's delegate
extension ViewController : UITableViewDelegate
{
}
// App set up stuff here:
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
lazy var window:UIWindow? = UIWindow()
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window!.rootViewController = ViewController()
window!.makeKeyAndVisible()
return true
}
}
fare doppio clic sul campo di testo nella cella u intendeva? – Tj3n
significa che lo tocco 2 volte –
Non puoi semplicemente disabilitare l'interazione dell'utente sul tuo campo di testo quando la tua vista tabella sta scorrendo? – Randy