Fixed bug with wrong numDigits passed to TaskActivity

app/src/main/java/com/example/quickmax/CardStyle.kt

 package com.example.quickmax
 
+import android.content.Context
 import android.graphics.Color
 
-class CardStyle(var isCheckable: Boolean,
+class CardStyle private constructor(var isCheckable: Boolean,
                 var isEnabled: Boolean,
                 var isChecked: Boolean,
                 var backgroundColor: Int,
-                var textColorId: Int) {
+                var textColor: Int) {
 
     companion object {
-        fun initial(): CardStyle {
+        fun initial(context: Context): CardStyle {
             return CardStyle(
                 isCheckable = true,
                 isEnabled = true,
                 isChecked = false,
                 backgroundColor = Color.WHITE,
-                textColorId = R.color.transparent_black)
+                textColor = color(context, R.color.transparent_black))
         }
+
+        fun correct(context: Context): CardStyle {
+            return CardStyle(
+                isCheckable = true,
+                isEnabled = true,
+                isChecked = true,
+                backgroundColor = color(context, R.color.colorAccent),
+                textColor = color(context, R.color.transparent_black))
+        }
+
+/*        fun wrong(context: Context): CardStyle {
+            return CardStyle(
+                isCheckable = true,
+                isEnabled = true,
+                isChecked = true,
+                backgroundColor = color(context, R.color.colorAccent),
+                textColor = color(context, R.color.transparent_black))
+        }*/
     }
 }
\ No newline at end of file

app/src/main/java/com/example/quickmax/MainActivity.kt

@@ -35,9 +35,9 @@ class MainActivity : AppCompatActivity() {
     private val cardOnClickListener = View.OnClickListener { card ->
         val cardM = card as MaterialCardView
         if (!cardM.isChecked) {
-            cardM.isChecked = true
             checkedCard = cardM
-            numDigits = getTextView(card).text.toString().toInt()
+            checkedCard.isChecked = true
+            numDigits = numDigitsFromCard(checkedCard)
             listOf(card_2_digits, card_3_digits, card_4_digits).forEach { c ->
                 if (c.id != cardM.id)
                     c.isChecked = false
@@ -65,6 +65,11 @@ class MainActivity : AppCompatActivity() {
         val prefs = getSharedPreferences("my_prefs", Context.MODE_PRIVATE)
         secToSolve = prefs.getInt("sec_to_solve", 4)
         checkedCard = findViewById(prefs.getInt("checked_num_id", R.id.card_3_digits))
+        numDigits = numDigitsFromCard(checkedCard)
         checkedCard.isChecked = true
     }
+
+    private fun numDigitsFromCard(card: MaterialCardView): Int {
+        return getTextView(card).text.toString().toInt()
+    }
 }
\ No newline at end of file

app/src/main/java/com/example/quickmax/TaskActivity.kt

@@ -35,10 +35,6 @@ class TaskActivity : AppCompatActivity() {
 
     private fun startNewRound() {
         answerSet = AnswerSet(numDigits, listOf(card_left_top, card_right_top, card_left_bottom, card_right_bottom))
-        answerSet.forEach {answer ->
-            answer.card.setOnClickListener { answer.card.isChecked = true }
-            answer.card.setOnCheckedChangeListener { _, isChecked -> if (isChecked) processAnswer(answer) }
-        }
         setUpCards()
         timer.start()
         startProgressBarAnimation()
@@ -50,9 +46,11 @@ class TaskActivity : AppCompatActivity() {
     }
 
     private fun setUpCards() {
-        for (answer in answerSet) {
+        answerSet.forEach {answer ->
+            answer.card.setOnClickListener { answer.card.isChecked = true }
+            answer.card.setOnCheckedChangeListener { _, isChecked -> if (isChecked) processAnswer(answer) }
             getTextView(answer.card).text = answer.value.toString()
-            styleCard(answer.card, CardStyle.initial())
+            styleCard(answer.card, CardStyle.initial(this))
         }
         btn_back.setOnClickListener { startActivity(Intent(this@TaskActivity, MainActivity::class.java)) }
         btn_next.apply {
@@ -66,7 +64,7 @@ class TaskActivity : AppCompatActivity() {
         card.isEnabled = style.isEnabled
         card.isChecked = style.isChecked
         card.setCardBackgroundColor(style.backgroundColor)
-        getTextView(card).setTextColor(color(this, style.textColorId))
+        getTextView(card).setTextColor(style.textColor)
     }
 
     private fun processAnswer(answer: Answer) {
@@ -81,9 +79,10 @@ class TaskActivity : AppCompatActivity() {
         btn_next.visibility = View.VISIBLE
 
         if (answer.correct) {
+            styleCard(answer.card, CardStyle.correct(this))
             tv_response.text = resources.getString(R.string.response_correct)
             answer.card.setCardBackgroundColor(color(this, R.color.colorAccent))
-            btn_next.backgroundTintList = ContextCompat.getColorStateList(this, R.color.colorAccent)
+//            btn_next.backgroundTintList = ContextCompat.getColorStateList(this, R.color.colorAccent)
             btn_next.setTextColor(color(this, R.color.transparent_dark_black))
         } else {
             tv_response.text = resources.getString(R.string.response_wrong)