我有一个UITableView，它使用基于JSON调用的数据填充单元格。像这样：
var items = ["Loading..."]
var indexValue = 0
// Here is SwiftyJSON code //
for (index,item) in enumerate(json) {
var indvItem = json[index]["Brand"]["Name"].stringValue
self.items.insert(indvItem,atIndex: indexValue)
indexValue++
}
self.tableView.reloadData()
选择单元格后，如何获取标签，然后将其传递给另一个ViewController？
我设法得到：
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!;
println(currentCell.textLabel.text)
}
我只是不知道如何将它作为一个变量传递给下一个UIViewController。
谢谢
在两个视图控制器之间传递数据取决于视图控制器如何相互链接。如果它们与segue链接，则需要使用performSegueWithIdentifier方法并覆盖prepareForSegue方法
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
}
}
如果您的视图控制器没有与segue链接，那么您可以直接从tableView函数传递值
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!;
let storyboard = UIStoryboard(name: "YourStoryBoardFileName",bundle: nil)
var viewController = storyboard.instantiateViewControllerWithIdentifier("viewControllerIdentifer") as AnotherViewController
viewController.passedValue = currentCell.textLabel.text
self.presentViewController(viewContoller,animated: true,completion: nil)
}
