我是一个新手快速程序员,我被要求编写一个应用程序,允许您输入一个单词,然后生成一个随机的Haiku
这是一个带选项卡的应用程序,带有两个ViewControllers.
(诗)基于这个词.所以在FirstViewController中我有数据,我想在SecondViewController中以一种很好的方式显示那些数据.
我有所有的诗行和所有在FirstViewController中,但我想在SecondViewController中访问这些变量.我已经尝试创建一个函数,除了返回它们之外什么都不做,然后在调用该函数的SecondViewController中,但没有任何结果,因为函数只返回nil.如果你们中的任何人能提供帮助,我们会很高
谢谢!
这是一个带选项卡的应用程序,带有两个ViewControllers.
(诗)基于这个词.所以在FirstViewController中我有数据,我想在SecondViewController中以一种很好的方式显示那些数据.
我有所有的诗行和所有在FirstViewController中,但我想在SecondViewController中访问这些变量.我已经尝试创建一个函数,除了返回它们之外什么都不做,然后在调用该函数的SecondViewController中,但没有任何结果,因为函数只返回nil.如果你们中的任何人能提供帮助,我们会很高
谢谢!
这是FirstViewController:
import UIKit import Foundation class FirstViewController: UIViewController,UITextFieldDelegate { @IBOutlet weak var keyWordTextField: UITextField! @IBOutlet weak var syllableSlider: UiSlider! @IBOutlet weak var syllableSliderLabel: UILabel! var syllableSliderValue = 1 @IBOutlet weak var lineOneTextField: UITextField! @IBOutlet weak var lineTwoTextField: UITextField! @IBOutlet weak var lineThreeTextField: UITextField! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view,typically from a nib. lineOneTextField.text = "Rad 1" lineTwoTextField.text = "Rad 2" lineThreeTextField.text = "Rad 3" } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } @IBAction func syllableValueChanged(sender: UiSlider) { syllableSliderValue = Int((sender.value)) syllableSliderLabel.text = "Ordet har: \(syllableSliderValue) stavelser" } @IBAction func getNewHaiku() { if keyWordTextField.text != "" { let keyWord = keyWordTextField.text let lineOne = generateLine(keyWord: keyWord,syllables: syllableSliderValue,lineSyllableLenght: 5) let lineTwo = generateLine(keyWord: keyWord,lineSyllableLenght: 7) let lineThree = generateLine(keyWord: keyWord,lineSyllableLenght: 5) lineOneTextField.text! = lineOne lineTwoTextField.text! = lineTwo lineThreeTextField.text! = lineThree } } func generateLine(#keyWord: String,syllables : Int,lineSyllableLenght : Int) -> String { let oneSyllables = Dict().oneSyllables let twoSyllables = Dict().twoSyllables let threeSyllables = Dict().threeSyllables let fourSyllables = Dict().fourSyllables let randomOneSyllableWordNumber = Int(arc4random_uniform(UInt32(oneSyllables.count))) let randomTwoSyllableWordNumber = Int(arc4random_uniform(UInt32(twoSyllables.count))) let randomThreeSyllableWordNumber = Int(arc4random_uniform(UInt32(threeSyllables.count))) let randomFourSyllableWordNumber = Int(arc4random_uniform(UInt32(fourSyllables.count))) var lineArray : [String] = [] var line = "" lineArray.append(keyWord) if syllables == 1 { let randomWordMethod = Int(arc4random_uniform(2)) if randomWordMethod == 0 { lineArray.append(fourSyllables[randomFourSyllableWordNumber]) } else if randomWordMethod == 1 { lineArray.append(threeSyllables[randomThreeSyllableWordNumber]) lineArray.append(oneSyllables[randomOneSyllableWordNumber]) } else if randomWordMethod == 2 { lineArray.append(oneSyllables[randomOneSyllableWordNumber]) lineArray.append(twoSyllables[randomOneSyllableWordNumber]) lineArray.append(oneSyllables[randomOneSyllableWordNumber]) } } else if syllables == 2 { let randomWordMethod = Int(arc4random_uniform(2)) if randomWordMethod == 0 { lineArray.append(twoSyllables[randomOneSyllableWordNumber]) lineArray.append(oneSyllables[randomTwoSyllableWordNumber]) } else if randomWordMethod == 1 { lineArray.append(threeSyllables[randomThreeSyllableWordNumber]) } else if randomWordMethod == 2 { lineArray.append(twoSyllables[randomTwoSyllableWordNumber]) lineArray.append(oneSyllables[randomOneSyllableWordNumber]) } } else if syllables == 3 { let randomWordMethod = Int(arc4random_uniform(1)) if randomWordMethod == 0 { lineArray.append(twoSyllables[randomTwoSyllableWordNumber]) } else if randomWordMethod == 1 { lineArray.append(oneSyllables[randomOneSyllableWordNumber]) lineArray.append(oneSyllables[randomOneSyllableWordNumber]) } } else if syllables == 4 { lineArray.append(oneSyllables[randomOneSyllableWordNumber]) } if lineSyllableLenght == 7 { let randomWordMethod = Int(arc4random_uniform(1)) if randomWordMethod == 0 { lineArray.append(oneSyllables[randomOneSyllableWordNumber]) lineArray.append(oneSyllables[randomOneSyllableWordNumber]) } else if randomWordMethod == 1 { lineArray.append(twoSyllables[randomTwoSyllableWordNumber]) } } for word in lineArray { line += " \(word)" } line += "," return line } override func touchesBegan(touches: NSSet,withEvent event: UIEvent) { self.view.endEditing(true) } func getData() -> (line2: String,line3: String) { return (lineTwoTextField.text,lineThreeTextField.text) } }
Ps,“Dict”是另一个文件,但只包含单词.
第二个视图控制器只是空白.
@R_301_323@
您需要在第二个视图控制器中传递这样的实例:
var firstViewController: FirstViewController?
然后在知道两者的主实例中:
secondViewController.firstViewController = firstViewController
(例如在awakeFromNib中)假设它们在主实例中是已知的
let firstViewController = FirstViewController() let secondViewController = SecondViewController()
最后在SecondViewController中你可以访问第一个:
firstViewController?.generateLine....