Merge branch 'release/1.0.0'

.idea/codeStyles/Project.xml

@@ -1,6 +1,22 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
     <JetCodeStyleSettings>
+      <option name="PACKAGES_TO_USE_STAR_IMPORTS">
+        <value>
+          <package name="java.util" alias="false" withSubpackages="false" />
+          <package name="kotlinx.android.synthetic" alias="false" withSubpackages="true" />
+          <package name="io.ktor" alias="false" withSubpackages="true" />
+        </value>
+      </option>
+      <option name="PACKAGES_IMPORT_LAYOUT">
+        <value>
+          <package name="" alias="false" withSubpackages="true" />
+          <package name="java" alias="false" withSubpackages="true" />
+          <package name="javax" alias="false" withSubpackages="true" />
+          <package name="kotlin" alias="false" withSubpackages="true" />
+          <package name="" alias="true" withSubpackages="true" />
+        </value>
+      </option>
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
     <codeStyleSettings language="XML">

.idea/dictionaries/fabian.xml

@@ -0,0 +1,10 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="fabian">
+    <words>
+      <w>checkmark</w>
+      <w>tichu</w>
+      <w>tichucounter</w>
+      <w>zobrist</w>
+    </words>
+  </dictionary>
+</component>

.idea/misc.xml

@@ -1,5 +1,44 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="NullableNotNullManager">
+    <option name="myDefaultNullable" value="androidx.annotation.Nullable" />
+    <option name="myDefaultNotNull" value="androidx.annotation.NonNull" />
+    <option name="myNullables">
+      <value>
+        <list size="12">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
+          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
+          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
+          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
+          <item index="6" class="java.lang.String" itemvalue="android.annotation.Nullable" />
+          <item index="7" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.Nullable" />
+          <item index="9" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableDecl" />
+          <item index="10" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableType" />
+          <item index="11" class="java.lang.String" itemvalue="com.android.annotations.Nullable" />
+        </list>
+      </value>
+    </option>
+    <option name="myNotNulls">
+      <value>
+        <list size="11">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
+          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
+          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
+          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
+          <item index="5" class="java.lang.String" itemvalue="android.annotation.NonNull" />
+          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
+          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.NonNull" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullDecl" />
+          <item index="9" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullType" />
+          <item index="10" class="java.lang.String" itemvalue="com.android.annotations.NonNull" />
+        </list>
+      </value>
+    </option>
+  </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>

app/build.gradle

@@ -34,12 +34,12 @@ android {
 dependencies {
     implementation fileTree(dir: "libs", include: ["*.jar"])
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-    implementation 'androidx.core:core-ktx:1.1.0'
-    implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'androidx.core:core-ktx:1.3.1'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.2.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'androidx.navigation:navigation-fragment-ktx:2.1.0'
-    implementation 'androidx.navigation:navigation-ui-ktx:2.1.0'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.0'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.3.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

app/src/main/AndroidManifest.xml

@@ -11,6 +11,7 @@
         android:theme="@style/AppTheme">
         <activity
             android:name=".MainActivity"
+            android:windowSoftInputMode="adjustPan"
             android:label="@string/app_name"
             android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>

app/src/main/java/me/zobrist/tichucounter/History.kt

@@ -0,0 +1,83 @@
+@file:Suppress("unused")
+
+package me.zobrist.tichucounter
+
+import android.os.Parcel
+import android.os.Parcelable
+
+class History() : Parcelable {
+    private var scores: ArrayList<Round> = ArrayList()
+
+    constructor(parcel: Parcel) : this() {
+        scores = parcel.readSerializable() as ArrayList<Round>
+    }
+
+    fun getScoreA(): Int {
+        var tempScore = 0
+        scores.forEach {
+            tempScore += it.scoreA
+        }
+        return tempScore
+    }
+
+    fun getScoreB(): Int {
+        var tempScore = 0
+        scores.forEach {
+            tempScore += it.scoreB
+        }
+        return tempScore
+    }
+
+    fun getHistoryA(): String {
+        var tempHistory = String()
+        scores.forEach {
+            tempHistory = tempHistory.plus(it.scoreA.toString()).plus("\n")
+        }
+        return tempHistory
+    }
+
+    fun getHistoryB(): String {
+        var tempHistory = String()
+        scores.forEach {
+            tempHistory = tempHistory.plus(it.scoreB.toString()).plus("\n")
+        }
+        return tempHistory
+    }
+
+    fun logRound(round: Round) {
+        scores.add(round)
+    }
+
+    fun revertLastRound() {
+        if (scores.isNotEmpty()) {
+            scores.removeAt(scores.size - 1)
+        }
+    }
+
+    fun clearAll() {
+        scores.clear()
+    }
+
+    fun isEmpty(): Boolean {
+        return scores.isEmpty()
+    }
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        parcel.writeSerializable(scores)
+    }
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    companion object CREATOR : Parcelable.Creator<History> {
+        override fun createFromParcel(parcel: Parcel): History {
+            return History(parcel)
+        }
+
+        override fun newArray(size: Int): Array<History?> {
+            return arrayOfNulls(size)
+        }
+    }
+
+}

app/src/main/java/me/zobrist/tichucounter/MainActivity.kt

@@ -1,115 +1,266 @@
 package me.zobrist.tichucounter
 
+import android.app.AlertDialog
+import android.content.Context
 import android.os.Bundle
-import androidx.appcompat.app.AppCompatActivity
+import android.text.InputType
 import android.view.Menu
+import android.view.MenuItem
+import android.widget.ScrollView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.widget.doOnTextChanged
 import kotlinx.android.synthetic.main.content_main.*
-import kotlinx.coroutines.sync.Mutex
-import kotlin.Exception
 
 class MainActivity : AppCompatActivity() {
 
-    var mut = Mutex()
+    private var invertA: Boolean = false
+    private var invertB: Boolean = false
 
-    private var listA: List<Int> = emptyList()
-    private var listB: List<Int> = emptyList()
+    private var updateOnChange: Boolean = true
 
-    private var tempCounterTeamA: Int = 0
-    private var tempCounterTeamB: Int = 0
-
-    private var counterTeamA: Int = 0
-    private var counterTeamB: Int = 0
+    private lateinit var history: History
+    private var currentRound = Round()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
         setSupportActionBar(findViewById(R.id.toolbar))
+        inputTeamA.setRawInputType(InputType.TYPE_NULL)
+        inputTeamB.setRawInputType(InputType.TYPE_NULL)
+        inputTeamA.requestFocus()
+        disableSubmitButton()
+        updateTheme(this.getSharedPreferences("Settings", Context.MODE_PRIVATE).getInt("Theme", 2))
 
+        history = savedInstanceState?.getParcelable("history") ?: History()
+        updateView()
 
 
         inputTeamA.doOnTextChanged { text, start, count, after ->
             if (inputTeamA.isFocused) {
-                inputTeamB.setText(updateNumber(text, tempCounterTeamA + tempCounterTeamB))
+                if (inputTeamA.text.isNotEmpty()) {
+                    if (updateOnChange) {
+                        currentRound = try {
+                            Round(text.toString().toInt(), true)
+
+                        } catch (e: java.lang.Exception) {
+                            Round(0, 0)
+                        }
+                        inputTeamB.setText(currentRound.scoreB.toString())
+                    }else{
+                        updateOnChange = true
+                    }
+                }else{
+                    inputTeamA.text.clear()
+                    inputTeamB.text.clear()
                 }
             }
 
+            if(currentRound.isValidRound()){
+                enableSubmitButton()
+            }else{
+                disableSubmitButton()
+            }
+        }
+
+
+
         inputTeamB.doOnTextChanged { text, start, count, after ->
             if (inputTeamB.isFocused) {
-                inputTeamA.setText(updateNumber(text, tempCounterTeamB + tempCounterTeamA))
+                if (inputTeamB.text.isNotEmpty()){
+                    if(updateOnChange){
+                        currentRound = try {
+                            Round(text.toString().toInt(), false)
+
+                        } catch (e: java.lang.Exception){
+                            Round(0, 0)
+                        }
+                        inputTeamA.setText(currentRound.scoreA.toString())
+
+                    }else{
+                        updateOnChange = true
+                    }
+
+                }else{
+                    inputTeamA.text.clear()
+                    inputTeamB.text.clear()
                 }
             }
 
-        add100.setOnClickListener {
+            if(currentRound.isValidRound()){
+                enableSubmitButton()
+            }else{
+                disableSubmitButton()
+            }
+        }
+
+        buttonAdd100.setOnClickListener {
             if (inputTeamA.isFocused) {
-                tempCounterTeamA += 100
+
                 val temp = try {
                     inputTeamA.text.toString().toInt() + 100
                 } catch (e: Exception) {
+                    inputTeamB.setText(0.toString())
                     100
+
                 }
+                updateOnChange = false
                 inputTeamA.setText(temp.toString())
             }
 
             if (inputTeamB.isFocused) {
-                tempCounterTeamB += 100
                 val temp = try {
                     inputTeamB.text.toString().toInt() + 100
                 } catch (e: Exception) {
+                    inputTeamA.setText(0.toString())
                     100
+
                 }
+                updateOnChange = false
                 inputTeamB.setText(temp.toString())
             }
-
-            updateTemp()
         }
 
-        sub100.setOnClickListener {
+        buttonSub100.setOnClickListener {
             if (inputTeamA.isFocused) {
-                tempCounterTeamA -= 100
                 val temp = try {
                     inputTeamA.text.toString().toInt() - 100
                 } catch (e: Exception) {
                     -100
                 }
+                updateOnChange = false
                 inputTeamA.setText(temp.toString())
 
             }
 
             if (inputTeamB.isFocused) {
-                tempCounterTeamB -= 100
                 val temp = try {
                     inputTeamB.text.toString().toInt() - 100
                 } catch (e: Exception) {
                     -100
                 }
+                updateOnChange = false
                 inputTeamB.setText(temp.toString())
             }
-
-            updateTemp()
         }
 
-        add.setOnClickListener {
+        button0.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('0')
+        }
+
+        button1.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('1')
+        }
+
+        button2.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('2')
+        }
+
+        button3.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('3')
+        }
+
+        button4.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('4')
+        }
+
+        button5.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('5')
+        }
+
+        button6.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('6')
+        }
+
+        button7.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('7')
+        }
+
+        button8.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('8')
+        }
+
+        button9.setOnClickListener {
+            giveFocusToAIfNone()
+            appendToFocusedInput('9')
+        }
+
+        buttonInv.setOnClickListener {
+            val tempInt: Int
+
+            giveFocusToAIfNone()
+
+            if(inputTeamA.isFocused ){
+                if (inputTeamA.text.isNotEmpty()){
+                    tempInt = inputTeamA.text.toString().toInt() * -1
+                    inputTeamA.setText(tempInt.toString())
+                }else{
+                    invertB = false
+                    invertA = true
+                }
+
+
+            }else if(inputTeamB.isFocused) {
+                if(inputTeamB.text.isNotEmpty()){
+                    tempInt = inputTeamB.text.toString().toInt() * -1
+                    inputTeamB.setText(tempInt.toString())
+                } else{
+                    invertA = false
+                    invertB = true
+                }
+            }
+        }
+
+        buttonBack.setOnClickListener {
+            giveFocusToAIfNone()
+
+            if (inputTeamA.isFocused) {
+                if (inputTeamA.text.isNotEmpty()) {
+                    val string = inputTeamA.text.toString()
+                    inputTeamA.setText(string.substring(0, string.length - 1))
+                }
+
+            } else if (inputTeamB.isFocused) {
+                if (inputTeamB.text.isNotEmpty()) {
+                    val string = inputTeamB.text.toString()
+                    inputTeamB.setText(string.substring(0, string.length - 1))
+                }
+            }
+        }
+
+        submit.setOnClickListener {
+            giveFocusToAIfNone()
 
             if (inputTeamA.text.isNotEmpty() && inputTeamB.text.isNotEmpty()) {
-                tempCounterTeamA = 0
-                tempCounterTeamB = 0
 
-                counterTeamA += inputTeamA.text.toString().toInt()
-                counterTeamB += inputTeamB.text.toString().toInt()
+                history.logRound(Round(inputTeamA.text.toString().toInt(), inputTeamB.text.toString().toInt()))
 
-                historyA.text = historyA.text.toString().plus(scoreA.text.toString().plus("\n"))
-                historyB.text = historyB.text.toString().plus(scoreB.text.toString().plus("\n"))
 
-                scoreA.text = counterTeamA.toString()
-                scoreB.text = counterTeamB.toString()
+                updateView()
 
-                inputTeamA.setText("")
-                inputTeamB.setText("")
-            }
+
+                inputTeamA.text.clear()
+                inputTeamB.text.clear()
+
+                scrollViewHistory.fullScroll(ScrollView.FOCUS_DOWN)
 
             }
         }
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putParcelable("history", history)
+    }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         // Inflate the menu; this adds items to the action bar if it is present.
@@ -117,25 +268,117 @@ class MainActivity : AppCompatActivity() {
         return true
     }
 
-    private fun updateNumber(inputText: CharSequence?, offset: Int): String {
-        var toSet: Int = 0
-
-        toSet = try {
-            100 - inputText.toString().toInt()
-
-        } catch (e: Exception) {
-            0
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        return when (item.itemId) {
+            R.id.action_clear -> {
+                clearAll()
+                true
+            }
+            R.id.action_undo -> {
+                undoLastRound()
+                true
+            }
+            R.id.action_theme -> {
+                chooseThemeDialog()
+                true
+            }
+            else -> super.onOptionsItemSelected(item)
+        }
     }
 
-        toSet += offset
-
-        return "$toSet"
+    private fun giveFocusToAIfNone() {
+        if (!inputTeamA.isFocused && !inputTeamB.isFocused) {
+            inputTeamA.requestFocus()
+        }
     }
 
-    private fun updateTemp() {
-        nameTeamA.text = tempCounterTeamA.toString()
-        nameTeamB.text = tempCounterTeamB.toString()
+    private fun undoLastRound() {
+
+        history.revertLastRound()
+        updateView()
+
+    }
+
+    private fun updateView() {
+        scoreA.text = history.getScoreA().toString()
+        scoreB.text = history.getScoreB().toString()
+
+        historyA.text = history.getHistoryA()
+        historyB.text = history.getHistoryB()
+    }
+
+    private fun clearAll() {
+        historyA.text = ""
+        historyB.text = ""
+        inputTeamA.text.clear()
+        inputTeamB.text.clear()
+        scoreA.text = "0"
+        scoreB.text = "0"
+
+        history.clearAll()
+    }
+
+    private fun appendToFocusedInput(toAppend: Char){
+        if(inputTeamA.isFocused){
+            if(invertA){
+                invertA = false
+                inputTeamA.text.append('-')
+            }
+
+            inputTeamA.text.append(toAppend)
+        }else if(inputTeamB.isFocused)
+        {
+            if(invertB){
+                invertB = false
+                inputTeamB.text.append('-')
+            }
+            inputTeamB.text.append(toAppend)
         }
 
 
+    }
+
+    private fun enableSubmitButton() {
+        submit.imageAlpha = 255 // 0 being transparent and 255 being opaque
+        submit.isEnabled = true
+    }
+
+    private fun disableSubmitButton(){
+        submit.imageAlpha = 60 // 0 being transparent and 255 being opaque
+        submit.isEnabled = false
+    }
+
+    private fun chooseThemeDialog() {
+
+        val builder = AlertDialog.Builder(this)
+        builder.setTitle(getString(R.string.choose_theme_text))
+        val styles = arrayOf("Light","Dark","System default")
+
+        val checkedItem = this.getSharedPreferences("", Context.MODE_PRIVATE).getInt("Theme", 2)
+
+        val prefs = this.getSharedPreferences("Settings", Context.MODE_PRIVATE).edit()
+
+
+        builder.setSingleChoiceItems(styles, checkedItem) { dialog, which ->
+
+            prefs.putInt("Theme", which)
+            prefs.apply()
+
+            updateTheme(which)
+
+            dialog.dismiss()
+        }
+
+        val dialog = builder.create()
+        dialog.show()
+    }
+
+    private fun updateTheme(which: Int) {
+        when (which) {
+            0 -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
+            1 -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
+            2 -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM)
+        }
+        delegate.applyDayNight()
+    }
 }

app/src/main/java/me/zobrist/tichucounter/Round.kt

@@ -0,0 +1,36 @@
+package me.zobrist.tichucounter
+
+class Round() {
+    var scoreA: Int = 0
+    var scoreB: Int = 0
+
+    constructor(score: Int, isScoreA: Boolean) : this() {
+        if (isScoreA) {
+            scoreA = score
+            scoreB = calculateOtherScore(scoreA)
+        } else {
+            scoreB = score
+            scoreA = calculateOtherScore(scoreB)
+        }
+    }
+
+    constructor(scoreA: Int, scoreB: Int) : this() {
+        this.scoreA = scoreA
+        this.scoreB = scoreB
+    }
+
+    private fun calculateOtherScore(score: Int): Int {
+        if (isMultipleOf100(score)) {
+            return 0
+        }
+        return 100 - (score % 100)
+    }
+
+    private fun isMultipleOf100(score: Int): Boolean {
+        return (score / 100) >= 1 && (score % 100) == 0
+    }
+
+    fun isValidRound(): Boolean {
+        return (scoreA % 5 == 0) && (scoreB % 5 == 0) && ((scoreA + scoreB) % 100 == 0)
+    }
+}

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -1,30 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:aapt="http://schemas.android.com/aapt"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
-        <aapt:attr name="android:fillColor">
-            <gradient
-                android:endX="85.84757"
-                android:endY="92.4963"
-                android:startX="42.9492"
-                android:startY="49.59793"
-                android:type="linear">
-                <item
-                    android:color="#44000000"
-                    android:offset="0.0" />
-                <item
-                    android:color="#00000000"
-                    android:offset="1.0" />
-            </gradient>
-        </aapt:attr>
-    </path>
-    <path
-        android:fillColor="#FFFFFF"
-        android:fillType="nonZero"
-        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
-        android:strokeWidth="1"
-        android:strokeColor="#00000000" />
-</vector>

app/src/main/res/drawable/ic_launcher_background.xml

@@ -1,170 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <path
-        android:fillColor="#3DDC84"
-        android:pathData="M0,0h108v108h-108z" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M9,0L9,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,0L19,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M29,0L29,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M39,0L39,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M49,0L49,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M59,0L59,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M69,0L69,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M79,0L79,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M89,0L89,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M99,0L99,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,9L108,9"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,19L108,19"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,29L108,29"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,39L108,39"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,49L108,49"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,59L108,59"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,69L108,69"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,79L108,79"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,89L108,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,99L108,99"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,29L89,29"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,39L89,39"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,49L89,49"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,59L89,59"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,69L89,69"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,79L89,79"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M29,19L29,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M39,19L39,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M49,19L49,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M59,19L59,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M69,19L69,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M79,19L79,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-</vector>

app/src/main/res/layout-land/content_main.xml

@@ -0,0 +1,316 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:visibility="visible"
+    app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
+    <LinearLayout
+        android:id="@+id/left"
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:weightSum="2"
+        app:layout_constraintEnd_toStartOf="@+id/right"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <LinearLayout
+            android:id="@+id/Names"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <EditText
+                android:id="@+id/NameTeamA"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:autofillHints=""
+                android:gravity="center"
+                android:imeOptions="actionDone"
+                android:inputType="text"
+                android:selectAllOnFocus="true"
+                android:singleLine="true"
+                android:text="@string/team_a"
+                android:textAppearance="@style/TextAppearance.AppCompat.Display1" />
+
+            <EditText
+                android:id="@+id/NameTeamB"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:autofillHints=""
+                android:gravity="center"
+                android:imeOptions="actionDone"
+                android:inputType="text"
+                android:selectAllOnFocus="true"
+                android:singleLine="true"
+                android:text="@string/team_b"
+                android:textAppearance="@style/TextAppearance.AppCompat.Display1" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/Score"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/scoreA"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="0"
+                android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+                android:textSize="18sp" />
+
+            <TextView
+                android:id="@+id/scoreB"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="0"
+                android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+                android:textSize="18sp" />
+
+        </LinearLayout>
+
+        <ScrollView
+            android:id="@+id/scrollViewHistory"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_marginTop="16dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:id="@+id/historyA"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="0.2"
+                    android:gravity="center" />
+
+                <TextView
+                    android:id="@+id/historyB"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="0.2"
+                    android:gravity="center" />
+
+            </LinearLayout>
+        </ScrollView>
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@+id/right"
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:gravity="bottom"
+        android:orientation="vertical"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/left">
+
+        <LinearLayout
+            android:id="@+id/Input"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <EditText
+                android:id="@+id/inputTeamA"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:ems="10"
+                android:gravity="center"
+                android:hint="0"
+                android:importantForAutofill="no"
+                android:inputType="numberSigned" />
+
+            <EditText
+                android:id="@+id/inputTeamB"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:ems="10"
+                android:gravity="center"
+                android:hint="0"
+                android:importantForAutofill="no"
+                android:inputType="numberSigned" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ButtonRow1"
+            style="?android:attr/buttonBarStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/button1"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="1" />
+
+            <Button
+                android:id="@+id/button2"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="2" />
+
+            <Button
+                android:id="@+id/button3"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="3" />
+
+            <Button
+                android:id="@+id/buttonAdd100"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="+100" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ButtonRow2"
+            style="?android:attr/buttonBarStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/button4"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="4" />
+
+            <Button
+                android:id="@+id/button5"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="5" />
+
+            <Button
+                android:id="@+id/button6"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="6" />
+
+            <Button
+                android:id="@+id/buttonSub100"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="-100" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ButtonRow3"
+            style="?android:attr/buttonBarStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/button7"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="7" />
+
+            <Button
+                android:id="@+id/button8"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="8" />
+
+            <Button
+                android:id="@+id/button9"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="9" />
+
+            <ImageButton
+                android:id="@+id/buttonBack"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:cropToPadding="false"
+                android:paddingTop="15dp"
+                android:paddingBottom="15dp"
+                android:scaleType="fitCenter"
+                app:srcCompat="@drawable/back" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ButtonRow4"
+            style="?android:attr/buttonBarStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/buttonInv"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1.0"
+                android:text="+/-" />
+
+            <Button
+                android:id="@+id/button0"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1.0"
+                android:text="0" />
+
+            <Space
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1.0" />
+
+            <ImageButton
+                android:id="@+id/submit"
+                style='style="?android:attr/buttonBarButtonStyle'
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1.0"
+                android:scaleType="fitCenter"
+                app:srcCompat="@drawable/checkmark" />
+        </LinearLayout>
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -6,61 +6,56 @@
     android:layout_height="match_parent"
     app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
-    <TableLayout
+    <LinearLayout
+        android:id="@+id/Names"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_constraintDimensionRatio="w,1:1"
-        tools:layout_editor_absoluteX="1dp"
-        tools:layout_editor_absoluteY="-1dp">
+        android:layout_height="0dp"
+        android:orientation="horizontal"
+        app:layout_constraintTop_toTopOf="parent">
 
-        <TableRow
+        <EditText
+            android:id="@+id/NameTeamA"
             android:layout_width="match_parent"
-            android:layout_height="match_parent">
-
-            <TextView
-                android:id="@+id/nameTeamA"
-                android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
-                android:text="@string/teama"
+            android:layout_weight="1"
+            android:autofillHints=""
+            android:gravity="center"
+            android:imeOptions="actionDone"
+            android:inputType="text"
+            android:selectAllOnFocus="true"
+            android:singleLine="true"
+            android:text="@string/team_a"
             android:textAppearance="@style/TextAppearance.AppCompat.Display1" />
 
-            <TextView
-                android:id="@+id/nameTeamB"
-                android:layout_width="wrap_content"
+        <EditText
+            android:id="@+id/NameTeamB"
+            android:imeOptions="actionDone"
+            android:layout_width="match_parent"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
+            android:layout_weight="1"
+            android:autofillHints=""
+            android:gravity="center"
+            android:inputType="text"
+            android:selectAllOnFocus="true"
+            android:singleLine="true"
             android:text="@string/team_b"
             android:textAppearance="@style/TextAppearance.AppCompat.Display1" />
-        </TableRow>
 
-        <TableRow
-            android:layout_width="match_parent"
-            android:layout_height="match_parent">
+    </LinearLayout>
 
-            <TextView
-                android:id="@+id/historyB"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_weight="0.5" />
-
-            <TextView
-                android:id="@+id/historyA"
+    <LinearLayout
+        android:id="@+id/Score"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-                android:layout_weight="0.5" />
-
-        </TableRow>
-
-        <TableRow
-            android:layout_width="match_parent"
-            android:layout_height="match_parent">
+        android:orientation="horizontal"
+        app:layout_constraintTop_toBottomOf="@+id/Names">
 
         <TextView
             android:id="@+id/scoreA"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
+            android:layout_weight="1"
+            android:gravity="center"
             android:text="0"
             android:textAppearance="@style/TextAppearance.AppCompat.Body1"
             android:textSize="18sp" />
@@ -69,22 +64,75 @@
             android:id="@+id/scoreB"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
+            android:layout_weight="1"
+            android:gravity="center"
             android:text="0"
             android:textAppearance="@style/TextAppearance.AppCompat.Body1"
             android:textSize="18sp" />
-        </TableRow>
 
-        <TableRow
+    </LinearLayout>
+
+    <View
+        android:id="@+id/divider5"
         android:layout_width="match_parent"
-            android:layout_height="match_parent">
+        android:layout_height="1dp"
+        android:background="?android:attr/listDivider"
+        app:layout_constraintBottom_toBottomOf="@+id/scrollViewHistory" />
+
+    <ScrollView
+        android:id="@+id/scrollViewHistory"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_marginTop="16dp"
+        app:layout_constraintBottom_toTopOf="@+id/Input"
+        app:layout_constraintTop_toBottomOf="@+id/Score">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/historyA"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_weight="0.2"
+                android:gravity="center" />
+
+            <TextView
+                android:id="@+id/historyB"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_weight="0.2"
+                android:gravity="center" />
+
+        </LinearLayout>
+
+    </ScrollView>
+
+
+    <View
+        android:id="@+id/divider6"
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="?android:attr/listDivider"
+        app:layout_constraintBottom_toBottomOf="@+id/Score" />
+
+    <LinearLayout
+        android:id="@+id/Input"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:orientation="horizontal"
+        app:layout_constraintBottom_toTopOf="@+id/ButtonRow1">
 
         <EditText
             android:id="@+id/inputTeamA"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
+            android:layout_weight="1"
             android:ems="10"
+            android:gravity="center"
+            android:hint="0"
             android:importantForAutofill="no"
             android:inputType="numberSigned" />
 
@@ -92,44 +140,180 @@
             android:id="@+id/inputTeamB"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
+            android:layout_weight="1"
             android:ems="10"
+            android:gravity="center"
+            android:hint="0"
             android:importantForAutofill="no"
             android:inputType="numberSigned" />
-        </TableRow>
+    </LinearLayout>
 
-        <TableRow
+    <LinearLayout
+        android:id="@+id/ButtonRow1"
+        style="?android:attr/buttonBarStyle"
         android:layout_width="match_parent"
-            android:layout_height="match_parent">
+        android:layout_height="0dp"
+        android:orientation="horizontal"
+        app:layout_constraintBottom_toTopOf="@+id/ButtonRow2">
 
         <Button
-                android:id="@+id/add100"
-                android:layout_width="wrap_content"
+            android:id="@+id/button1"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
+            android:layout_weight="1"
+            android:text="1" />
+
+        <Button
+            android:id="@+id/button2"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="2" />
+
+        <Button
+            android:id="@+id/button3"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="3" />
+
+        <Button
+            android:id="@+id/buttonAdd100"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
             android:text="+100" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@+id/ButtonRow2"
+        style="?android:attr/buttonBarStyle"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:orientation="horizontal"
+        app:layout_constraintBottom_toTopOf="@+id/ButtonRow3">
 
         <Button
-                android:id="@+id/sub100"
-                android:layout_width="wrap_content"
+            android:id="@+id/button4"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
-                android:layout_weight="0.5"
-                android:text="-100" />
-
-        </TableRow>
-
-        <TableRow
-            android:layout_width="88dp"
-            android:layout_height="match_parent">
+            android:layout_weight="1"
+            android:text="4" />
 
         <Button
-                android:id="@+id/add"
-                android:layout_width="120dp"
+            android:id="@+id/button5"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="5" />
+
+        <Button
+            android:id="@+id/button6"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="6" />
+
+        <Button
+            android:id="@+id/buttonSub100"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="-100" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@+id/ButtonRow3"
+        style="?android:attr/buttonBarStyle"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:orientation="horizontal"
+        app:layout_constraintBottom_toTopOf="@+id/ButtonRow4">
+
+        <Button
+            android:id="@+id/button7"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="7" />
+
+        <Button
+            android:id="@+id/button8"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="8" />
+
+        <Button
+            android:id="@+id/button9"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="9" />
+
+        <ImageButton
+            android:id="@+id/buttonBack"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:cropToPadding="false"
+            android:paddingTop="15dp"
+            android:paddingBottom="15dp"
+            android:scaleType="fitCenter"
+            app:srcCompat="@drawable/back" />
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@+id/ButtonRow4"
+        style="?android:attr/buttonBarStyle"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:orientation="horizontal"
+        android:visibility="visible"
+        app:layout_constraintBottom_toBottomOf="parent"
+        tools:layout_editor_absoluteX="1dp">
+
+        <Button
+            android:id="@+id/buttonInv"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1.0"
-                android:text="@string/add" />
-        </TableRow>
+            android:text="+/-" />
 
-    </TableLayout>
+        <Button
+            android:id="@+id/button0"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1.0"
+            android:text="0" />
 
+        <Space
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1.0" />
+
+        <ImageButton
+            android:id="@+id/submit"
+            style='style="?android:attr/buttonBarButtonStyle'
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1.0"
+            android:scaleType="fitCenter"
+            app:srcCompat="@drawable/checkmark" />
+    </LinearLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/menu/menu_main.xml

@@ -3,8 +3,18 @@
     xmlns:tools="http://schemas.android.com/tools"
     tools:context="me.zobrist.tichucounter.MainActivity">
     <item
-        android:id="@+id/action_settings"
-        android:orderInCategory="100"
-        android:title="@string/action_settings"
+        android:id="@+id/action_undo"
+        android:icon="@android:drawable/ic_menu_revert"
+        android:orderInCategory="5"
+        android:title="@string/undo" />
+    <item
+        android:id="@+id/action_clear"
+        android:checkable="false"
+        android:orderInCategory="10"
+        android:title="@string/clear"
         app:showAsAction="never" />
+    <item
+        android:id="@+id/action_theme"
+        android:orderInCategory="15"
+        android:title="@string/choose_theme_text" />
 </menu>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/navigation/nav_graph.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<navigation xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/nav_graph" />

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

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="clear">Neues Spiel Starten</string>
+    <string name="undo">Letzte Runde Löschen</string>
+    <string name="choose_theme_text">Theme auswählen</string>
+</resources>

app/src/main/res/values-gsw-rCH/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="clear">Neus Spil Starte</string>
+    <string name="undo">Letschti Rundi Lösche</string>
+    <string name="choose_theme_text">Usgsehe ändere</string>
+</resources>

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

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#6200EE</color>
-    <color name="colorPrimaryDark">#3700B3</color>
-    <color name="colorAccent">#03DAC5</color>
+    <color name="colorPrimary">@color/ic_launcher_background</color>
+    <color name="colorPrimaryDark">#830000</color>
+    <color name="colorAccent">#F57F17</color>
 </resources>

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

@@ -1,3 +0,0 @@
-<resources>
-    <dimen name="fab_margin">16dp</dimen>
-</resources>

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

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#DC0E00</color>
+</resources>

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

@@ -1,15 +1,10 @@
 <resources>
-    <string name="app_name">Tichu Counter</string>
-    <string name="action_settings">Settings</string>
+    <string name="app_name" translatable="false">Tichu Counter</string>
     <!-- Strings used for fragments for navigation -->
-    <string name="first_fragment_label">First Fragment</string>
-    <string name="second_fragment_label">Second Fragment</string>
-    <string name="next">Next</string>
-    <string name="previous">Previous</string>
 
-    <string name="hello_first_fragment">Hello first fragment</string>
-    <string name="hello_second_fragment">Hello second fragment. Arg: %1$s</string>
-    <string name="teama">TeamA</string>
-    <string name="team_b">Team B</string>
-    <string name="add">Add</string>
+    <string name="team_a" translatable="false">Team A</string>
+    <string name="team_b" translatable="false">Team B</string>
+    <string name="clear">Start New Game</string>
+    <string name="undo">Undo Last Round</string>
+    <string name="choose_theme_text">Choose theme</string>
 </resources>

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

@@ -1,10 +1,11 @@
 <resources>
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="AppTheme" parent="Theme.AppCompat.DayNight">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
+
     </style>
 
     <style name="AppTheme.NoActionBar">

app/src/test/java/me/zobrist/tichucounter/ExampleUnitTest.kt

@@ -1,17 +0,0 @@
-package me.zobrist.tichucounter
-
-import org.junit.Test
-
-import org.junit.Assert.*
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * See [testing documentation](http://d.android.com/tools/testing).
- */
-class ExampleUnitTest {
-    @Test
-    fun addition_isCorrect() {
-        assertEquals(4, 2 + 2)
-    }
-}

app/src/test/java/me/zobrist/tichucounter/HistoryUnitTest.kt

@@ -0,0 +1,53 @@
+package me.zobrist.tichucounter
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotEquals
+import org.junit.Test
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class HistoryUnitTest {
+    @Test
+    fun calculation_isCorrect() {
+        val history = History()
+
+        history.revertLastRound()
+        history.getHistoryA()
+        history.getHistoryB()
+        history.getScoreA()
+        history.getScoreB()
+
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+        history.logRound(Round(10, 10))
+
+        assertEquals(100, history.getScoreA())
+        assertEquals(100, history.getScoreB())
+
+        history.revertLastRound()
+
+        assertEquals(90, history.getScoreA())
+        assertEquals(90, history.getScoreB())
+
+        assertNotEquals("", history.getHistoryA())
+        assertNotEquals("", history.getHistoryB())
+
+        history.clearAll()
+        assertEquals(0, history.getScoreA())
+        assertEquals(0, history.getScoreB())
+
+
+        assertEquals("", history.getHistoryA())
+        assertEquals("", history.getHistoryB())
+    }
+}

app/src/test/java/me/zobrist/tichucounter/RoundUnitTest.kt

@@ -0,0 +1,92 @@
+package me.zobrist.tichucounter
+
+import org.junit.Assert.*
+import org.junit.Test
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class RoundUnitTest {
+    @Test
+    fun calculation_isCorrect() {
+
+        var inputScoreA = 125
+        var inputScoreB = -25
+        var temp: Round
+
+        // Normal round range -25 to 125 as input
+        while (inputScoreB >= 125) {
+            temp = Round(inputScoreA, true)
+            assertEquals(inputScoreB, temp.scoreB)
+            assertTrue(temp.isValidRound())
+
+            temp = Round(inputScoreA, false)
+            assertEquals(inputScoreB, temp.scoreA)
+            assertTrue(temp.isValidRound())
+
+            inputScoreA -= 5
+            inputScoreB += 5
+        }
+
+        // Team a +100 points for Tichu
+        inputScoreA = 125 + 100
+        inputScoreB = -25
+
+        // Normal round range -25 to 125 as input
+        while (inputScoreB >= 125) {
+            temp = Round(inputScoreA, true)
+            assertEquals(inputScoreB, temp.scoreB)
+            assertTrue(temp.isValidRound())
+
+            temp = Round(inputScoreA, false)
+            assertEquals(inputScoreB, temp.scoreA)
+            assertTrue(temp.isValidRound())
+
+            inputScoreA -= 5
+            inputScoreB += 5
+        }
+
+        // Double win
+        temp = Round(200, true)
+        assertEquals(0, temp.scoreB)
+        assertTrue(temp.isValidRound())
+
+        temp = Round(200, false)
+        assertEquals(0, temp.scoreA)
+        assertTrue(temp.isValidRound())
+
+        // Double win with Tichu
+        temp = Round(300, true)
+        assertEquals(0, temp.scoreB)
+        assertTrue(temp.isValidRound())
+
+        temp = Round(300, false)
+        assertEquals(0, temp.scoreA)
+        assertTrue(temp.isValidRound())
+
+        // Double win with Grand Tichu
+        temp = Round(400, true)
+        assertEquals(0, temp.scoreB)
+        assertTrue(temp.isValidRound())
+
+        temp = Round(400, false)
+        assertEquals(0, temp.scoreA)
+        assertTrue(temp.isValidRound())
+
+        //Good rounds
+        temp = Round(0, 0)
+        assertTrue(temp.isValidRound())
+
+        //Bad rounds
+        temp = Round(5, 12)
+        assertFalse(temp.isValidRound())
+
+        temp = Round(12, 5)
+        assertFalse(temp.isValidRound())
+
+        temp = Round(5, 55)
+        assertFalse(temp.isValidRound())
+    }
+}