Selected number of digits is stored in memory

app/src/androidTest/java/com/example/quickmax/TaskActivityTest.kt

-package com.example.quickmax
-
-import android.view.View
-import androidx.test.espresso.Espresso.onView
-import androidx.test.rule.ActivityTestRule
-import org.junit.Rule
-import org.junit.Test
-import android.widget.TextView
-import androidx.test.espresso.ViewAction
-import androidx.test.espresso.UiController
-import androidx.test.espresso.action.ViewActions.click
-import androidx.test.espresso.assertion.ViewAssertions.matches
-import androidx.test.espresso.matcher.ViewMatchers.*
-import com.example.quickmax.answers.findSecondMax
-import junit.framework.Assert.assertNotNull
-import junit.framework.Assert.assertTrue
-import org.hamcrest.Matcher
-import org.junit.Before
-
-class TaskActivityTest {
-    @get:Rule
-    val testRule = ActivityTestRule<TaskActivity>(TaskActivity::class.java, true, true)
-
-    private lateinit var answers: Map<Int, Int>
-
-    @Before
-    fun init() {
-        answers = mapOf(
-            getText(withId(R.id.card_left_top)).toInt() to R.id.card_left_top,
-            getText(withId(R.id.card_right_top)).toInt() to R.id.card_right_top,
-            getText(withId(R.id.card_left_bottom)).toInt() to R.id.card_left_bottom,
-            getText(withId(R.id.card_right_bottom)).toInt() to R.id.card_right_bottom
-        )
-    }
-
-    @Test
-    fun correct_answer_marked_as_correct() {
-        val correctAnswerId = getCorrectAnswerId()
-        onView(withId(correctAnswerId)).perform(click())
-        onView(withId(R.id.tv_response))
-            .check(matches(withText(testRule.activity.resources.getString(R.string.response_correct))))
-    }
-
-    @Test
-    fun wrong_answer_marked_as_wrong() {
-        val wrongAnswerId = getWrongAnswerId()
-        onView(withId(wrongAnswerId)).perform(click())
-        onView(withId(R.id.tv_response))
-            .check(matches(withText(testRule.activity.resources.getString(R.string.response_wrong))))
-    }
-
-    @Test
-    fun only_fist_answer_accepted() {
-        onView(withId(R.id.card_right_bottom)).perform(click())
-        assertTrue(testRule.activity.supportFragmentManager.fragments.size == 1)
-        onView(withId(R.id.card_left_bottom)).perform(click())
-        assertTrue(testRule.activity.supportFragmentManager.fragments.size == 1)
-    }
-
-    @Test
-    fun time_decreases() {
-        val time1 = getText(withId(R.id.tv_time_left)).toInt()
-        Thread.sleep(1000)
-        val time2 = getText(withId(R.id.tv_time_left)).toInt()
-        assertTrue(time2 < time1)
-    }
-
-    @Test
-    fun fragment_when_time_is_over() {
-        Thread.sleep(4000)
-        assertNotNull(testRule.activity.supportFragmentManager.fragments.find {
-                f -> f is TimeIsOverFragment })
-    }
-
-    private fun getCorrectAnswerId(): Int {
-        val correctAnswer = findSecondMax(answers.keys)
-        return answers.getValue(correctAnswer)
-    }
-
-    private fun getWrongAnswerId(): Int {
-        val correctAnswer = findSecondMax(answers.keys)
-        for (answer in answers)
-            if (answer.key != correctAnswer)
-                return answer.value
-        return answers.getValue(-1)
-    }
-
-    private fun getText(matcher: Matcher<View>): String {
-        var text = ""
-        onView(matcher).perform(object : ViewAction {
-            override fun getConstraints(): Matcher<View> {
-                return isAssignableFrom(TextView::class.java)
-            }
-
-            override fun getDescription(): String { return "" }
-
-            override fun perform(uiController: UiController, view: View) {
-                val tv = view as TextView
-                text = tv.text.toString()
-            }
-        })
-        return text
-    }
-}
\ No newline at end of file

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

@@ -5,33 +5,47 @@ import android.content.Intent
 import android.os.Bundle
 import android.view.View
 import androidx.appcompat.app.AppCompatActivity
+import com.google.android.material.card.MaterialCardView
 import kotlinx.android.synthetic.main.activity_main.*
 
-class MainActivity: AppCompatActivity() {
+class MainActivity : AppCompatActivity() {
 
     private var secToSolve: Int = 4
+    private var numDigits: Int = 3
+    private lateinit var checkedCard: MaterialCardView
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
-        secToSolve = retrieveSecondsToSolve()
+        retrieveSharedPrefs()
         seek_bar.setMinStartValue(secToSolve.toFloat()).apply()
 
-        seek_bar.setOnSeekbarChangeListener {
-            n -> seek_bar_value.text = resources.getString(R.string.time_to_solve, n.toString())
+        seek_bar.setOnSeekbarChangeListener { n ->
+            seek_bar_value.text = resources.getString(R.string.time_to_solve, n.toString())
             secToSolve = n.toInt()
         }
 
         card_2_digits.setOnClickListener(cardOnClickListener)
         card_3_digits.setOnClickListener(cardOnClickListener)
         card_4_digits.setOnClickListener(cardOnClickListener)
+
+        btn_play.setOnClickListener(playClickListener)
     }
 
     private val cardOnClickListener = View.OnClickListener { card ->
-        val numDigits = getTextView(card).text.toString().toInt()
+        val cardM = card as MaterialCardView
+        if (!cardM.isChecked) {
+            cardM.isChecked = true
+            numDigits = getTextView(card).text.toString().toInt()
+            listOf(card_2_digits, card_3_digits, card_4_digits).forEach { c ->
+                if (c.id != cardM.id)
+                    c.isChecked = false
+            }
+        }
+    }
 
+    private val playClickListener = View.OnClickListener {
         saveSelectedValues()
-
         val intent = Intent(this, TaskActivity::class.java).also { i ->
             i.putExtra("num_digits", numDigits)
             i.putExtra("sec_to_solve", secToSolve)
@@ -45,8 +59,10 @@ class MainActivity: AppCompatActivity() {
         editor.apply()
     }
 
-    private fun retrieveSecondsToSolve(): Int {
+    private fun retrieveSharedPrefs() {
         val prefs = getSharedPreferences("my_prefs", Context.MODE_PRIVATE)
-        return prefs.getInt("sec_to_solve", 4)
+        secToSolve = prefs.getInt("sec_to_solve", 4)
+        checkedCard = findViewById(prefs.getInt("checked_num_id", R.id.card_3_digits))
+        checkedCard.isChecked = true
     }
 }
\ No newline at end of file

app/src/main/res/layout/activity_main.xml

@@ -106,4 +106,15 @@
         app:layout_constraintStart_toStartOf="@+id/layout_num_digits"
         app:layout_constraintTop_toBottomOf="@+id/seek_bar" />
 
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/btn_play"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="8dp"
+        android:layout_marginBottom="8dp"
+        android:text="@string/play"
+        app:backgroundTint="@color/colorPrimary"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

app/src/main/res/values/strings.xml

@@ -11,4 +11,5 @@
     <string name="time_to_solve">Time to solve: %1$s seconds</string>
     <string name="btn_next">Next</string>
     <string name="tap_to_continue">Tap anywhere to continue</string>
+    <string name="play">Play</string>
 </resources>
\ No newline at end of file

app/src/main/res/values/styles.xml

@@ -15,7 +15,6 @@
         <item name="android:clickable">true</item>
         <item name="android:focusable">true</item>
         <item name="android:checkable">true</item>
-        <item name="android:selectable">true</item>
         <item name="cardCornerRadius">6dp</item>
     </style>