我正试图使用"performSegueWithIdentifier"将值从表视图传递到某个详细信息视图。详细信息页面运行良好,但值没有正确显示在屏幕上。如果我点击表视图中的第一个选项,详细信息页面的内容为空白。如果我点击第二个项目,第一个项目就会加载到详细信息页面中。
我的表视图代码:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let object = objectAtIndexPath(indexPath)
self.titulo = object!.objectForKey("titulo") as! String
self.sub_titulo = object!.objectForKey("sub_titulo") as! String
self.url = object!.objectForKey("url") as! String
self.tipo = object!.objectForKey("tipo") as! Int
//Chama a segue
self.performSegueWithIdentifier("detailSegue", sender: self)
}
//In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let svc = segue.destinationViewController as! DetailViewController
svc.titulo = self.titulo
svc.sub_titulo = self.sub_titulo
svc.url = self.url
svc.tipo = self.tipo
}
我的详细视图控制器:
import UIKit
class DetailViewController: UIViewController {
@IBOutlet weak var imagemDestaque: UIImageView!
@IBOutlet weak var tituloLabel: UILabel!
@IBOutlet weak var conteudoLabel: UILabel!
var titulo = String()
var sub_titulo = String()
var tipo = Int()
var url = String()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.s
print(self.titulo)
tituloLabel.text = self.titulo
conteudoLabel.text = self.sub_titulo
}
}
这样更改代码:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
//Chama a segue
self.performSegueWithIdentifier("detailSegue", sender: self)
}
//In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let svc = segue.destinationViewController as! DetailViewController
let indexPath = tableView.indexPathForSelectedRow()
let object = objectAtIndexPath(indexPath)
svc.titulo = object!.objectForKey("titulo") as! String
svc.sub_titulo = object!.objectForKey("sub_titulo") as! String
svc.url = object!.objectForKey("url") as! String
svc.tipo = object!.objectForKey("tipo") as! Int
}