将数据从TableView发送到DetailView Swift

到目前为止,我正在尝试为我做最简单,最令人困惑的事情之一
我想开发自己的应用程序,为了做到这一点,我需要能够传递一些信息,取决于用户点击哪一行(它是 Swift lenguage)

我们有一个RootViewController(表视图)和一个DetailViewController(1个标签和1个图像)

(我们的看法)

这是代码：

@IBOutlet weak var tableView: UITableView!


var vehicleData : [String] = ["Ferrari 458","Lamborghini Murcielago","Bugatti Veyron","Mercedes Benz Biome"]

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view,typically from a nib.

    var nib = UINib(nibName: "TableViewCell",bundle: nil)

    tableView.registerNib(nib,forCellReuseIdentifier: "cell")



}

func tableView(tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
    return vehicleData.count
}



func tableView(tableView: UITableView,cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {


    let cell:TableViewCell = self.tableView.dequeueReusableCellWithIdentifier("cell") as TableViewCell

    cell.lblCarName.text = vehicleData[indexPath.row]

    cell.imgCar.image = UIImage(named: vehicleData[indexPath.row])

    return cell   
}

func tableView(tableView: UITableView,didSelectRowAtIndexPath indexPath: NSIndexPath) {

    performSegueWithIdentifier("DetailView",sender: self)
}

 override func prepareForSegue(segue: UIStoryboardSegue,sender: AnyObject?) {

    if(segue.identifier == "DetailView") {

        var vc = segue.destinationViewController as DetailViewController

    }

}

func tableView(tableView: UITableView,heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    return 100
}

自定义TableViewCell类(具有单元格的xib文件)

class TableViewCell: UITableViewCell {


@IBOutlet weak var lblCarName: UILabel!

@IBOutlet weak var imgCar: 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
}

class DetailViewController: UIViewController {



    @IBOutlet weak var lblDetail: UILabel!

    @IBOutlet weak var imgDetail: UIImageView!

    override func viewDidLoad() {
        super.viewDidLoad()
    }

问题是：

如果用户点击法拉利458,DetailViewController中的lblDetail将显示：法拉利458是超级跑车,能够达到325公里/小时……(无论我们想要什么)
和imgDetail将能够显示一个图像(无论我们想要什么)的汽车

如果用户点击布加迪威龙现在,lblDetail显示：布加迪威龙是一款完美超级跑步机.它是世界上最快的车之一….

imgDetail向我们展示了这辆车的形象

与所有汽车相同的事情,根据我们点击了哪一行

我知道工作是在第一个View Controller中的prepareForSegue func中,但是我正在尝试许多不同的方法来使其成为可能,任何运行正常

我们该怎么办？

以下是您的例子：

var valuetoPass:String!

func tableView(tableView: UITableView!,didSelectRowAtIndexPath indexPath: NSIndexPath!) {
    println("You selected cell #\(indexPath.row)!")

    // Get Cell Label
    let indexPath = tableView.indexPathForSelectedRow!
    let currentCell = tableView.cellForRowAtIndexPath(indexPath)! as UITableViewCell

    valuetoPass = currentCell.textLabel.text
    performSegueWithIdentifier("yourSegueIdentifer",sender: self)
}

override func prepareForSegue(segue: UIStoryboardSegue,sender: AnyObject?){

    if (segue.identifier == "yourSegueIdentifer") {
        // initialize new view controller and cast it as your view controller
        var viewController = segue.destinationViewController as AnotherViewController
        // your new view controller should have property that will store passed value
        viewController.passedValue = valuetoPass
    }
}

但是不要忘了在您的DetailViewController中创建一个已传递的值.

这只是将数据从一个viewController传递给另一个的示例,您可以根据需要传递此示例的数据.

Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?

Swift: Pass UITableViewCell label to new ViewController

https://teamtreehouse.com/forum/help-swift-segue-with-variables-is-not-working

可能这将会帮助你.

Swift 3.0

var valuetoPass:String!
func tableView(_ tableView: UITableView,didSelectRowAt indexPath: IndexPath) {
    print("You selected cell #\(indexPath.row)!")

    // Get Cell Label
    let indexPath = tableView.indexPathForSelectedRow!
    let currentCell = tableView.cellForRow(at: indexPath)! as UITableViewCell

    valuetoPass = currentCell.textLabel?.text
    performSegue(withIdentifier: "yourSegueIdentifer",sender: self)
}

func prepareForSegue(segue: UIStoryboardSegue,sender: AnyObject?){

    if (segue.identifier == "yourSegueIdentifer") {
        // initialize new view controller and cast it as your view controller
        var viewController = segue.destination as! AnotherViewController
        // your new view controller should have property that will store passed value
        viewController.passedValue = valuetoPass
    }
}

将数据从TableView发送到DetailView Swift

相关文章