有人可以帮忙吗？我有一个真假游戏，但是，我希望这些问题可以随机播放/随机播放。我知道以前有过洗牌的答案，但我无法理解它。例如，附加部分中的问题应随机出现。我好几天都在尝试不同的事情。我看了一下arc4random但我很难实现它。我不想用勺子喂食，但我正在寻找一个体面的答案。
这是我的快捷代码
// ViewController.swift
// TrueOrFalse
//
//
//
import UIKit
class ViewController: UIViewController {
// Classes
class newLabel:UILabel {
convenience required init(width:CGFloat, height:CGFloat, framewidth: CGFloat, frameheight: CGFloat) {
self.init(frame: CGRectMake(0, 0, framewidth, frameheight))
self.center = CGPointMake(width, height)
self.font = UIFont(name: "HelveticaNeue-Medium", size: 18)
}
}
class newButton:UIButton {
var button:UIButton!
convenience required init(width:CGFloat, height:CGFloat, framewidth: CGFloat, frameheight: CGFloat) {
self.init(frame: CGRectMake(0, 0, framewidth, frameheight))
self.button = UIButton.buttonWithType(UIButtonType.System) as UIButton
self.center = CGPointMake(width, height)
}
}
let width:CGFloat = UIScreen.mainScreen().bounds.width
let height:CGFloat = UIScreen.mainScreen().bounds.height
var model:ToFModel = ToFModel()
var statement:UILabel!
var correctCount:newLabel!
var incorrectCount:newLabel!
var timerCount:newLabel!
var correctAmt:Int = 0
var incorrectAmt:Int = 0
var buttonTrue:newButton!
var buttonFalse:newButton!
var count:Int = 0
var counter:Int = 60
var answer:String!
var wall:UIView!
var lastBool:String!
var displayLastBool:newLabel!
var questionNumber:newLabel!
var frame:UIImageView!
var image:UIImage!
var splashImage:UIImage!
var splashLandingText:UILabel!
var splashButtonStart:newButton!
var timer = NSTimer()
var userDefaults = NSUserDefaults.standardUserDefaults()
func nextIter() {
statement.text = model.statements[count][0]
answer = model.statements[count][1]
questionNumber.text = "Question- \(count+1)/\(model.statements.count)"
if count == model.statements.count-1{
statement.textColor = UIColor.redColor()
}
else{
statement.textColor = UIColor.blackColor()
}
if count > 0 && count < model.statements.count {
// displayLastBool.text = ""
view.addSubview(displayLastBool)
}
else {
displayLastBool.text = ""
}
count += 1
}
// View functions
func start(sender:newButton) {
count = 0
frame.image = image
displayLastBool = newLabel(width: 170, height: height*0.27, framewidth: 200, frameheight: 50)
//Timer
timer = NSTimer.scheduledTimerWithTimeInterval(1, target:self, selector: Selector("updateCounter"), userInfo: nil, repeats: true)
// Put the image into the frame
// Remove current stuff
splashButtonStart.removeFromSuperview()
splashLandingText.removeFromSuperview()
// Add stuff to view
view.addSubview(timerCount)
view.addSubview(correctCount)
view.addSubview(incorrectCount)
view.addSubview(statement)
view.addSubview(buttonTrue)
view.addSubview(buttonFalse)
view.addSubview(questionNumber)
nextIter()
}
func splashPage() {
count = 0
displayLastBool?.removeFromSuperview()
// Put up the wall
view.addSubview(wall)
// Hang the frame on the wall
wall.addSubview(frame)
// Put up the text
view.addSubview(splashLandingText)
// Put up the button
view.addSubview(splashButtonStart)
frame.image = splashImage
}
func reset() {
correctCount.hidden = true
incorrectCount.hidden = true
count = 0
incorrectAmt = 0
correctAmt = 0
correctCount.removeFromSuperview()
incorrectCount.removeFromSuperview()
statement.removeFromSuperview()
buttonFalse.removeFromSuperview()
buttonTrue.removeFromSuperview()
questionNumber.removeFromSuperview()
displayLastBool.removeFromSuperview()
splashPage()
}
// Boolean detection
func boolResponse(sender:newButton) {
if count == model.statements.count {
if answer == String(sender.tag) {
count = 0
correctAmt = 0
incorrectAmt = 0
correctCount.hidden = true
incorrectCount.hidden = true
displayLastBool.hidden = false
timer = NSTimer.scheduledTimerWithTimeInterval(1, target:self, selector: Selector("updateCounter"), userInfo: nil, repeats: true)
}
else {
timer.invalidate()
reset()
}
}
else if answer == String(sender.tag) {
lastBool = "Correct"
displayLastBool.textColor = UIColor.greenColor()
// Correct count increments here
correctAmt += 1
}
else if answer != String(sender.tag) {
lastBool = "Incorrect"
displayLastBool.textColor = UIColor.redColor()
// Incorrect count increments here
incorrectAmt += 1
count = 9;
}
if count == model.statements.count-1 {
correctCount.hidden = false
incorrectCount.hidden = false
correctCount.text = "Correct- \(correctAmt)"
//incorrectCount.text = "Incorrect- \(incorrectAmt)"
//Saving Highscore
var highscore=userDefaults.integerForKey("highscore")
if(correctAmt>highscore)
{
userDefaults.setInteger(correctAmt, forKey: "highscore")
}
var highscoreshow=userDefaults.integerForKey("highscore")
incorrectCount.text = "High Score- \(highscoreshow)"
timer.invalidate()
counter = 60
timerCount.text = String(counter)
timerCount.textColor = UIColor.blackColor()
}
nextIter()
}
//Timer update function
func updateCounter() {
timerCount.text = String(counter--)
if counter <= 9{
timerCount.textColor = UIColor.redColor()
}else{
timerCount.textColor = UIColor.blackColor()
}
if counter == 0{
count=9
nextIter()
resetTimer()
}
}
//Timer reset function
func resetTimer() {
correctCount.hidden = false
incorrectCount.hidden = false
correctCount.text = "Correct- \(correctAmt)"
incorrectCount.text = "Incorrect- \(incorrectAmt)"
timer.invalidate()
counter = 60
timerCount.text = String(counter)
timerCount.textColor = UIColor.blackColor()
// displayLastBool.hidden = true
//questionNumber.hidden = true
}
// Make an image view that you can modify from any function in this class
var imageView:UIImageView = UIImageView()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// Append
model.statementsAppend("Sneezes regularly exceed 200 mph.", bool: "0")
model.statementsAppend("Virtually all Las Vegas gambling casinos ensure that they have no clocks.", bool: "1")
model.statementsAppend("Two human lungs have a surface area of approximately 750 square feet.", bool: "1")
model.statementsAppend("The 'black box' in an airplane is colored black.", bool: "0")
model.statementsAppend("The Statue of Liberty was a gift from Germany to America.", bool: "0")
model.statementsAppend("Ozone is helpful in the trophosphere but damaging to the stratosphere.", bool: "0")
model.statementsAppend("The can opener was invented after the can.", bool: "1")
model.statementsAppend("The world's oldest tree is OVER 9000 years old.", bool:"1")
model.statementsAppend("Emus can fly.", bool: "0")
model.statementsAppend("Game Over \n Play again?", bool: "1")
// Make the wall, the frame, and the image for the frame
wall = UIView(frame: CGRectMake(0, 0, width, height))
frame = UIImageView(frame: CGRectMake(0, 0, width, height))
//Load the text
statement = UILabel(frame: CGRectMake(0, 0, 280, height))
statement.center = CGPointMake(width/2, height*0.5)
statement.textAlignment = NSTextAlignment.Center
statement.lineBreakMode = NSLineBreakMode.ByWordWrapping
statement.numberOfLines = 99
statement.font = UIFont(name: "Arial", size: 24)
splashImage = UIImage(named: "splashGradient")
image = UIImage(named: "minimalGradient")
//Load the counts
timerCount = newLabel(width: 100, height: height*0.10, framewidth:200, frameheight:100)
correctCount = newLabel(width: 159, height: height*0.15, framewidth:100, frameheight:50)
incorrectCount = newLabel(width:147, height: height*0.19, framewidth:130, frameheight:50)
questionNumber = newLabel(width: 197, height: height*0.23, framewidth: 200, frameheight: 50)
timerCount.center = CGPointMake(width/2, height*0.09)
timerCount.textAlignment = NSTextAlignment.Center
timerCount.font = UIFont(name: "AvenirNext-DemiBold", size: 40)
timerCount.text = String(counter)
correctCount.text = "Correct- \(correctAmt)"
incorrectCount.text = "High Score- \(incorrectAmt)"
incorrectCount.textColor = UIColor.greenColor()
lastBool = "Incorrect"
correctCount.hidden = true
incorrectCount.hidden = true
questionNumber.hidden = true
//Load the buttons
buttonTrue = newButton(width: 80, height: height/1.2, framewidth: 111, frameheight: 45)
buttonFalse = newButton(width: 240, height: height/1.2, framewidth: 111, frameheight: 45)
// Style of button
buttonTrue.setBackgroundImage(UIImage(named: "true"), forState: UIControlState.Normal)
buttonFalse.setBackgroundImage(UIImage(named: "false"), forState: UIControlState.Normal)
// .tag
buttonTrue.tag = 1
buttonFalse.tag = 0
// Functions if button is clicked
buttonTrue.addTarget(self, action: "boolResponse:", forControlEvents: UIControlEvents.TouchUpInside)
buttonFalse.addTarget(self, action: "boolResponse:", forControlEvents: UIControlEvents.TouchUpInside)
// Make the splash button
splashButtonStart = newButton(width: width/2, height: height*0.8, framewidth: 244, frameheight: 58)
splashButtonStart.setBackgroundImage(UIImage(named: "splashButton"), forState: UIControlState.Normal)
splashButtonStart.addTarget(self, action: "start:", forControlEvents: UIControlEvents.TouchUpInside)
// Configure the text on the splash page
splashLandingText = UILabel(frame: CGRectMake(0, 0, 280, 280))
splashLandingText.center = CGPointMake(width/2, height*0.4)
splashLandingText.textAlignment = NSTextAlignment.Center
splashLandingText.numberOfLines = 99
splashLandingText.lineBreakMode = NSLineBreakMode.ByWordWrapping
splashLandingText.font = UIFont(name: "AvenirNext-DemiBold", size: 24)
splashLandingText.text = "Impossible True or False \n \n Are you ready to start your journey?"
// Configure the statement
splashPage()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
答案 0 :(得分：1)
我没有试图浏览你的代码。太过分了。 （tldr） 这是一般解决方案。您需要根据自己的需求进行调整。 创建一个包含问题，可能答案和正确答案的结构（如果它们都是真/假问题，您可以跳过可能的答案部分。）让我们称之为questionStruct。
然后创建一个questionStruct结构数组。用问题填充它。
将所有问题列表复制到一系列问题中。我们称之为剩余问题
然后用户arc4random_uniform随机选择一个问题并将其从剩余的问题数组中删除
let index = arc4random_uniform(remainingQuestions.count)
let aQuestion = remainingQuestions.removeAtIndex(index)
当remainingQuestions数组为空时，重新填充所有问题的数组以重新开始。