问题
I have a ViewController with tableview called BasicPhrasesVC and I want to pass the data in the selected cell to display it on the next ViewController (called BasicPhrasesVC).
class BasicPhrasesVC: UIViewController, UITableViewDataSource, UITableViewDelegate {
let basicPhrases = ["Hello.","Goodbye.","Yes.","No.","I don't understand.","Please?","Thank you.","I don't know."]
var selectedBasicPhrase = ""
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return basicPhrases.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell")!
cell.textLabel?.text = basicPhrases[indexPath.row]
return cell
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
I am unsure of what to put here (I want to pass on the variable "selectedBasicPhrase")
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
selectedBasicPhrase = basicPhrases[indexPath.row]
performSegueWithIdentifier("BasicPhrasesVC2BasicDisplayVC", sender: self)
}
}
Any help is appreciated.
回答1:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
selectedBasicPhrase = basicPhrases[indexPath.row]
self.performSegueWithIdentifier("BasicPhrasesVC2BasicDisplayVC", sender: selectedBasicPhrase)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "BasicPhrasesVC2BasicDisplayVC" {
if let nextVC = segue.destinationViewController as? NextViewController {
nextVC.selectedBasicPhrase = sender
}
}
}
回答2:
override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
if (segue.identifier == "<segue name>") {
// pass the data
}
}
回答3:
Check segue name than take destinationViewController and send you're data to it.
override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
if (segue.identifier == "BasicPhrasesVC2BasicDisplayVC") {
let viewController:ViewController = segue!.destinationViewController as ViewController
viewController.selectedBasicPhrase = "Test phrase"
}
}
来源：https://stackoverflow.com/questions/36173734/how-do-i-use-prepareforsegue-in-swift