swift Detect the correct textfield to add an attribute - xcode

Question

i´m writing an input text quiz app, and i have an array of Int where i can store if answer was correct or not with 0 or 1 and also i have 3 textfields where i write the answers, and i want to change the textfields back ground color to red or green depending on the answers variable ,, if index variable its 1 change color to green and if is 0 change color to red.. this is what i have
#IBOutlet var textField1: UITextField!
#IBOutlet var textField2: UITextField!
#IBOutlet var textField3: UITextField!
//change int to 1 if answer was correct (3, ea for each textfield)
var answers = [0,0,0]
#IBAction func button(sender: AnyObject) {
for (index, answer) in goodAnswers.enumerate() {
print (answer)
if answer != 0 {
print ("ok")
} else {
print("not ok")
}
}
}
thanks !

Answer 1

You need something like this:
var goodAnswers = ["One", "Two", "Three"]
var textFields:[Int:UITextField]!
override func viewDidLoad() {
super.viewDidLoad()
self.textFields = [0:textField, 1:textField2]
}
#IBAction func btnClick(sender: AnyObject) {
for(index, answer) in goodAnswers.enumerate() {
if textFields[index]?.text == answer {
textFields[index]?.backgroundColor = UIColor.greenColor()
}
else {
textFields[index]?.backgroundColor = UIColor.redColor()
}
}
}
UPDATE:
If you want to have another good answers simply change your code to like this:
Declare new property:
var collectionOfGoodAnswers: [Int : [String]]!
and in viewDidLoad() method:
self.collectionOfGoodAnswers = [0: ["Hello", "World"],
1: ["Welcome", "Friend"]]
and then implement the click action:
#IBAction func btnClick(sender: AnyObject) {
for(index, _) in collectionOfGoodAnswers.enumerate() {
guard let goodAnswer = collectionOfGoodAnswers[index] else { return }
guard let answer = textFields[index] else { return }
guard let text = answer.text else { return }
if goodAnswer.contains(text) {
textFields[index]?.backgroundColor = UIColor.greenColor()
}
else {
textFields[index]?.backgroundColor = UIColor.redColor()
}
}
}
hope it helps.