Question

我对此非常陌生，经过大量搜索＆＃34;未解决的标识符＆＃34;我似乎没有得到这个错误消失。＆＃34;未解析的标识符＆＃34;在＆＃34; viewDidLoad（）＆＃34;中的函数调用中发生错误在哪里说＆＃34; startGame（）＆＃34;。

我的基础是本教程：http://www.raywenderlich.com/114262/learn-to-code-ios-apps-with-swift-tutorial-4-your-first-app

该功能应该在应用程序启动时启动倒数计时器。

    override func viewDidLoad() {
    super.viewDidLoad()
           startGame()
    //SecondTimerValue.delegate = self
    SecondTimerValue.keyboardType = UIKeyboardType.NumberPad
    // Do any additional setup after loading the view, typically from a nib.
}
func startGame() {
        seconds = 30
        count = 0
        FirstTimerLabel.text = "Time: \(seconds)"
        scoreLabel.text = "Score: \(count)"

        timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("subtractTime"), userInfo: nil, repeats: true)
    }

以下是整个代码。

import UIKit

class ViewController: UIViewController {


@IBOutlet var scoreLabel: UILabel!
@IBOutlet var FirstTimerLabel: UILabel!
@IBOutlet var SecondTimerValue: UITextField!
var count = 0
var seconds = 0
var timer = NSTimer()
var SecondTimerValueVar = 0

// Goal 1 - verify input in text field went to variable
// Goal 2 - get rid of keyboard after "enter"
// Goal 3 - use new value to start new timer
// Goal 4 - When 1st timer reaches zero, start second timer



override func viewDidLoad() {
    super.viewDidLoad()
           startGame()
    //SecondTimerValue.delegate = self
    SecondTimerValue.keyboardType = UIKeyboardType.NumberPad
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


@IBAction func buttonPressed(){
    SecondTimerValueVar = SecondTimerValue.text.toInt()!
    scoreLabel.text = "Score \(count)"
    count++
}

@IBAction func startTimerPressed(){
    //let SecondTimerValueVar = Int(SecondTimerValue)

}

@IBAction func userTappedBackground(sender: AnyObject) {
    view.endEditing(true)


//let a:Int? = Int(firstText.text)     // firstText is //UITextField
//let b:Int? = Int(secondText.text)   // secondText is UITextField

func startGame() {
        seconds = 30
        count = 0
        FirstTimerLabel.text = "Time: \(seconds)"
        scoreLabel.text = "Score: \(count)"

        timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("subtractTime"), userInfo: nil, repeats: true)
    }


func subtractTime (){
    seconds--
    FirstTimerLabel.text = "Time: \(seconds)"

    if (seconds==0) {
        timer.invalidate()
    }
}
}

Answer 1

问题在于：

@IBAction func userTappedBackground(sender: AnyObject) {
    view.endEditing(true)
func startGame() {

你遗漏了userTappedBackground的结束花括号，因此startGame 里面的并且不能被视为方法。< / p>

Swift中函数调用中未解析的标识符

1 个答案: