How to detect if UI Label was tapped? - ios

Question

I'm trying to make a choose-your-own adventure game that changes the text of two labels (the user choices) depending on which label the user taps. I figured I would just do a very nested if-else statement rather than bother with trying to implement a binary tree. I know how to attach the gesture recognizer to a label (I think):
let tapped1 = UITapGestureRecognizer(target: self, action: #selector(VCGame.usrChose1))
choice1.isUserInteractionEnabled = true
choice1.addGestureRecognizer(tapped1)
let tapped2 = UITapGestureRecognizer(target: self, action: #selector(VCGame.usrChose2))
choice2.isUserInteractionEnabled = true
choice2.addGestureRecognizer(tapped2)
and I can define what to do when the label is touched in the usrChose1 and usrChose2 functions, however, those functions only work once: the first time the function is chosen and my game has more than just one choice. From there, the labels will just do the same thing if the user touches them.
How would I go about having a condition inside the if-else statement that evaluates to true or false if label1 or label2 is tapped?
Here's the code for usrChoice1 and usrChoice2, for clarification
func usrChose1(sender : UITapGestureRecognizer) {
print("tap 1 working")
choice1.text = "choice1.1"
choice2.text = "choice1.2"
}
func usrChose2(sender : UITapGestureRecognizer) {
print("tap2 working")
choice1.text = "update2.1";
choice2.text = "update2.2"
}
Below image shows my requirement :

Answer 1

According to your requirement, I have tried the following:
I have made a dummy project with two labels inside a view controller
ViewController.swift
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var choice1Label: UILabel!
#IBOutlet weak var choiceLabel2: UILabel!
var tapStart: Bool = false
var levelType1: Level?
var levelType2: Level?
override func viewDidLoad() {
super.viewDidLoad()
let tapped1 = UITapGestureRecognizer(target: self, action: #selector(usrChose1))
choice1Label.isUserInteractionEnabled = true
choice1Label.addGestureRecognizer(tapped1)
let tapped2 = UITapGestureRecognizer(target: self, action: #selector(usrChose2))
choiceLabel2.isUserInteractionEnabled = true
choiceLabel2.addGestureRecognizer(tapped2)
setup()
}
var currentLevel1: Level?
var currentLevel2: Level?
func setup() {
let lb2Child1Child1 = Level(text: "2.1.1", subLevels: nil)
let lb2Child1Child2 = Level(text: "2.1.2", subLevels: nil)
let lb1Child1Child1 = Level(text: "1.1.1", subLevels: nil)
let lb1Child1Child2 = Level(text: "1.1.2", subLevels: nil)
let lb1Child2Child1 = Level(text: "1.2.1", subLevels: nil)
let lb1Child2Child2 = Level(text: "1.2.2", subLevels: nil)
let lb1Child1 = Level(text: "1.1", subLevels: [lb1Child1Child1, lb1Child1Child2])
let lb1Child2 = Level(text: "1.2", subLevels: [lb1Child2Child1, lb1Child2Child2])
let lb2Child1 = Level(text: "2.1", subLevels: [lb2Child1Child1, lb2Child1Child2])
let lb2Child2 = Level(text: "2.2", subLevels: nil)
levelType1 = Level(text: "1", subLevels: [lb1Child1, lb1Child2])
levelType2 = Level(text: "2", subLevels: [lb2Child1, lb2Child2])
choice1Label.text = levelType1!.text ?? ""
choiceLabel2.text = levelType2!.text ?? ""
}
func usrChose1(sender : UITapGestureRecognizer) {
if !tapStart {
currentLevel1 = levelType1
tapStart = true
}
if let subLevelsArray = currentLevel1?.subLevels {
print(subLevelsArray[0].text ?? "")
print(subLevelsArray[1].text ?? "")
choice1Label.text = subLevelsArray[0].text ?? ""
choiceLabel2.text = subLevelsArray[1].text ?? ""
currentLevel1 = subLevelsArray[0]
currentLevel2 = subLevelsArray[1]
}
}
func usrChose2(sender : UITapGestureRecognizer) {
//print("tap2 working")
// choice1Label.text = "update2.1";
//choiceLabel2.text = "update2.2"
if !tapStart {
currentLevel2 = levelType2
tapStart = true
}
if let subLevelsArray = currentLevel2?.subLevels {
print(subLevelsArray[0].text ?? "")
print(subLevelsArray[1].text ?? "")
choice1Label.text = subLevelsArray[0].text ?? ""
choiceLabel2.text = subLevelsArray[1].text ?? ""
currentLevel1 = subLevelsArray[0]
currentLevel2 = subLevelsArray[1]
}
}
}
I have made a class named Level to represent a single level and each level contains sublevels
Level.swift
import UIKit
class Level {
var text: String?
var subLevels: [Level]?
init(text: String, subLevels: [Level]?) {
self.text = text
self.subLevels = subLevels ?? nil
}
}

Answer 2

You have to add UITapGestureRecognizer in UILabel or UIView whatever is container.
Add 2 different Int variables in each functions usrChose1 and usrChose2 respectively, which will be work as a counter.
var i = 0
var j = 0
func usrChose1(_ recognizer: UITapGestureRecognizer) {
i++
print("Total clicked label 1 :::",i)
}
func usrChose2(_ recognizer: UITapGestureRecognizer) {
j++
print("Total clicked label 2 :::",j)
}