在 Swift 中将数据从 tableView 传递到 ViewController
Passing data from tableView to ViewController in Swift
我有一个应用程序,我正在尝试完全按照我的需要进行调整
我一直在关注 Seemu Apps 的 Youtube 教程来制作它,但我需要完成它添加一个可选的 ViewController
此应用程序有 2 个显示车辆的 tableView,如果我们单击第一个 tableView 的一行,那么第二个 tableView 将向我们显示所选车辆的列表。
这是我们目前所拥有的:(图片 link,因为我在 Whosebug 上还没有获得十点声望)
http://subefotos.com/ver/?65ba467040cb9280e8ec49644fd156afo.jpg
一切都运行完美,但我希望能够以可选的细节显示信息ViewController(带有每辆车详细描述的标签和这个的更大图像)取决于我们在 secondTableViewControlle(或应用程序中的模型 ViewController)中单击了哪辆车,这正是我在 tableViews
之间的教程中所关注的
我知道我们需要通过 prepareForSegue 方法传递数据,我理解教程中的步骤但是当我们有 2 个表时viewControllers
例如:如果我们要显示带有法拉利 458 信息的最后一张 viewController 和这辆车的精美图片
我们具体需要做什么来显示每辆车的信息?
PD : 我是编程界的初学者,也许我需要以一种非常简单的方式了解它
全部代码:
ViewController.swift
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var selMake = String()
@IBOutlet var tableView : UITableView!
var transportData : [String] = ["Car", "Plane", "Motorcycle", "Truck" , "Train", "Bicycle" , "Helicopter"]
//////////////////////////////////////////
//viewDidLoad
override func viewDidLoad() {
super.viewDidLoad()
//Register custom cell
var nib = UINib(nibName: "customCell", bundle: nil)
tableView.registerNib(nib, forCellReuseIdentifier: "cell")
}
//Numbers of rows in Section
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.transportData.count
}
//cellForRowAtIndexPath
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
///// Static Cell (no valid for custom cells)
/*
var cell : UITableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
cell.textLabel?.text = self.transportData[indexPath.row]
return cell
*/
var cell:customCellTableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as customCellTableViewCell
cell.lblTrans.text = transportData[indexPath.row]
cell.imgTrans.image = UIImage (named: transportData[indexPath.row])
return cell
}
//height
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 90
}
//didSelectRowAtIndexPath
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Fila \(transportData[indexPath.row]) seleccionada")
selMake = transportData[indexPath.row]
performSegueWithIdentifier("modelView", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "modelView") {
var vc = segue.destinationViewController as modelViewViewController
vc.selMake = selMake
}
}
import UIKit
class customCellTableViewCell: UITableViewCell {
@IBOutlet weak var imgTrans: UIImageView!
@IBOutlet weak var lblTrans: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
import UIKit
class modelViewViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
//////////////////////////////////
var selMake = String()
var tableData : [String] = []
@IBOutlet var tableView: UITableView!
//////////////////////////////////
override func viewDidLoad() {
super.viewDidLoad()
//Register custom cell
var nib = UINib(nibName: "customCell2", bundle: nil)
tableView.registerNib(nib, forCellReuseIdentifier: "cell")
switch selMake {
case "Car" :
tableData = ["Ferrari 458", "La Ferrari"]
case "Plane" :
tableData = ["Iberia"]
case "Motorcycle" :
tableData = ["Kawasaki Ninja", "Yamaha Aerox"]
case "Truck" :
tableData = [ "Camion transporte"]
case "Train" :
tableData = [ "Ave" ]
case "Bicycle" :
tableData = ["BMX"]
case "Helicopter" :
tableData = ["HelicopteroCombate"]
default:
println("Sel Make \(selMake)")
}
self.tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.tableData.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
/* var cell : UITableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
cell.textLabel?.text = self.tableData[indexPath.row]
return cell*/
var cell:customCell2TableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as customCell2TableViewCell
cell.lbl2text.text = self.tableData[indexPath.row]
cell.img2image.image = UIImage (named: tableData[indexPath.row])
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Row \(indexPath.row)selected")
performSegueWithIdentifier("detailView", sender: self)
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 90
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "detailView") {
var vc = segue.destinationViewController as DetailViewController
}
}
import UIKit
class customCell2TableViewCell: UITableViewCell {
@IBOutlet var lbl2text: UILabel!
@IBOutlet var img2image: UIImageView!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
import UIKit
class DetailViewController: UIViewController {
@IBOutlet var imgDetail: UIImageView!
@IBOutlet var lblDetail: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
试试这个。
模型视图视图控制器
var selectedImage:String?
var selectedLabel:String?
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Row \(indexPath.row)selected")
selectedImage = self.tableData[indexPath.row]
selectedLabel = self.tableData[indexPath.row]
performSegueWithIdentifier("detailView", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "detailView") {
var vc = segue.destinationViewController as DetailViewController
vc.img = selectedImage
vc.lblDetail = selectedLabel
}
}
class DetailViewController: UIViewController {
@IBOutlet var imgDetail: UIImage!
@IBOutlet var lblDetail: UILabel!
var img:String?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
imgDetail = UIImage(named: img)
}
这应该有效。
我有一个应用程序,我正在尝试完全按照我的需要进行调整
我一直在关注 Seemu Apps 的 Youtube 教程来制作它,但我需要完成它添加一个可选的 ViewController
此应用程序有 2 个显示车辆的 tableView,如果我们单击第一个 tableView 的一行,那么第二个 tableView 将向我们显示所选车辆的列表。
这是我们目前所拥有的:(图片 link,因为我在 Whosebug 上还没有获得十点声望)
http://subefotos.com/ver/?65ba467040cb9280e8ec49644fd156afo.jpg
一切都运行完美,但我希望能够以可选的细节显示信息ViewController(带有每辆车详细描述的标签和这个的更大图像)取决于我们在 secondTableViewControlle(或应用程序中的模型 ViewController)中单击了哪辆车,这正是我在 tableViews
之间的教程中所关注的我知道我们需要通过 prepareForSegue 方法传递数据,我理解教程中的步骤但是当我们有 2 个表时viewControllers
例如:如果我们要显示带有法拉利 458 信息的最后一张 viewController 和这辆车的精美图片
我们具体需要做什么来显示每辆车的信息?
PD : 我是编程界的初学者,也许我需要以一种非常简单的方式了解它
全部代码:
ViewController.swift
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var selMake = String()
@IBOutlet var tableView : UITableView!
var transportData : [String] = ["Car", "Plane", "Motorcycle", "Truck" , "Train", "Bicycle" , "Helicopter"]
//////////////////////////////////////////
//viewDidLoad
override func viewDidLoad() {
super.viewDidLoad()
//Register custom cell
var nib = UINib(nibName: "customCell", bundle: nil)
tableView.registerNib(nib, forCellReuseIdentifier: "cell")
}
//Numbers of rows in Section
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.transportData.count
}
//cellForRowAtIndexPath
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
///// Static Cell (no valid for custom cells)
/*
var cell : UITableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
cell.textLabel?.text = self.transportData[indexPath.row]
return cell
*/
var cell:customCellTableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as customCellTableViewCell
cell.lblTrans.text = transportData[indexPath.row]
cell.imgTrans.image = UIImage (named: transportData[indexPath.row])
return cell
}
//height
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 90
}
//didSelectRowAtIndexPath
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Fila \(transportData[indexPath.row]) seleccionada")
selMake = transportData[indexPath.row]
performSegueWithIdentifier("modelView", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "modelView") {
var vc = segue.destinationViewController as modelViewViewController
vc.selMake = selMake
}
}
import UIKit
class customCellTableViewCell: UITableViewCell {
@IBOutlet weak var imgTrans: UIImageView!
@IBOutlet weak var lblTrans: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
import UIKit
class modelViewViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
//////////////////////////////////
var selMake = String()
var tableData : [String] = []
@IBOutlet var tableView: UITableView!
//////////////////////////////////
override func viewDidLoad() {
super.viewDidLoad()
//Register custom cell
var nib = UINib(nibName: "customCell2", bundle: nil)
tableView.registerNib(nib, forCellReuseIdentifier: "cell")
switch selMake {
case "Car" :
tableData = ["Ferrari 458", "La Ferrari"]
case "Plane" :
tableData = ["Iberia"]
case "Motorcycle" :
tableData = ["Kawasaki Ninja", "Yamaha Aerox"]
case "Truck" :
tableData = [ "Camion transporte"]
case "Train" :
tableData = [ "Ave" ]
case "Bicycle" :
tableData = ["BMX"]
case "Helicopter" :
tableData = ["HelicopteroCombate"]
default:
println("Sel Make \(selMake)")
}
self.tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.tableData.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
/* var cell : UITableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
cell.textLabel?.text = self.tableData[indexPath.row]
return cell*/
var cell:customCell2TableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as customCell2TableViewCell
cell.lbl2text.text = self.tableData[indexPath.row]
cell.img2image.image = UIImage (named: tableData[indexPath.row])
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Row \(indexPath.row)selected")
performSegueWithIdentifier("detailView", sender: self)
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 90
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "detailView") {
var vc = segue.destinationViewController as DetailViewController
}
}
import UIKit
class customCell2TableViewCell: UITableViewCell {
@IBOutlet var lbl2text: UILabel!
@IBOutlet var img2image: UIImageView!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
import UIKit
class DetailViewController: UIViewController {
@IBOutlet var imgDetail: UIImageView!
@IBOutlet var lblDetail: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
试试这个。
模型视图视图控制器
var selectedImage:String?
var selectedLabel:String?
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("Row \(indexPath.row)selected")
selectedImage = self.tableData[indexPath.row]
selectedLabel = self.tableData[indexPath.row]
performSegueWithIdentifier("detailView", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "detailView") {
var vc = segue.destinationViewController as DetailViewController
vc.img = selectedImage
vc.lblDetail = selectedLabel
}
}
class DetailViewController: UIViewController {
@IBOutlet var imgDetail: UIImage!
@IBOutlet var lblDetail: UILabel!
var img:String?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
imgDetail = UIImage(named: img)
}
这应该有效。