Sto lavorando su una vista tabella con una cella personalizzata che è stata creata a livello di codice, senza utilizzo di IB. Ho dato un'occhiata a Google e ho chiesto informazioni su NSChat, ma non riesco ancora a farlo funzionare. Visualizza solo la vista tabella predefinita. Grazie in anticipo!Utilizzo di una sottoclasse UITableViewCell creata in modo programmatico in Swift
EventCell.swift
import UIKit
class EventCell: UITableViewCell {
var eventName: UILabel = UILabel()
var eventCity: UILabel = UILabel()
var eventTime: UILabel = UILabel()
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.contentView.addSubview(eventName)
self.contentView.addSubview(eventCity)
self.contentView.addSubview(eventTime)
}
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
override func layoutSubviews() {
super.layoutSubviews()
eventName = UILabel(frame: CGRectMake(20, 10, self.bounds.size.width - 40, 25))
eventCity = UILabel(frame: CGRectMake(0, 0, 0, 0))
eventTime = UILabel(frame: CGRectMake(0, 0, 0, 0))
}
}
ViewController.swift
class ViewController: UITableViewController, UITableViewDelegate {
var events: Dictionary<String, [String]> = ["0": ["Monroe Family", "La Cañada", "8:30"]]
override func viewDidLoad() {
super.viewDidLoad()
tableView.dataSource = self;
tableView.delegate = self;
tableView.registerClass(EventCell.self, forCellReuseIdentifier: "EventCell")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func tableView(tableView: UITableView, estimatedHeightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return UITableViewAutomaticDimension;
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return events.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cellIdendifier: String = "EventCell"
var cell: EventCell = tableView.dequeueReusableCellWithIdentifier(cellIdendifier, forIndexPath: indexPath) as EventCell
cell = EventCell(style: .Default, reuseIdentifier: cellIdendifier)
if let i = events[String(indexPath.row)] {
cell.eventName.text = i[0]
cell.eventCity.text = i[1]
cell.eventTime.text = i[2]
}
cell.sizeToFit()
return cell
}
}
https://github.com/ericcgu/TableViewCellWithAutoLayoutiOS8 – ericgu
lasciare cellIdendifier: String = "EventCell" poiché cellIdentifier non è mutato. – Das
let cella: EventCell = tableView.dequeueReusableCellWithIdentifier (cellIdendifier, forIndexPath: indexPath) as! EventCell poiché la cella non viene mutata e forzata con il downcast! – Das