Project 2: Tennis ScoreKeeper App

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.android.scorekeeper.MainActivity">

    <!--/** 1st outer nested horizontal layout - top row **/-->

    <android.support.v7.widget.LinearLayoutCompat
        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:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="horizontal">

        <android.support.v7.widget.LinearLayoutCompat 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:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:id="@+id/matchLabel"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:layout_weight="1"
                android:fontFamily="sans-serif"
                android:text="\[ Match - Game \]"
                android:textAlignment="center"
                android:textColor="#616161"
                android:textSize="16sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/gameNumber"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="2dp"
                android:layout_weight="1"
                android:fontFamily="sans-serif"
                android:text="\[ 0 - 0\ ]"
                android:textAlignment="center"
                android:textColor="#616161"
                android:textSize="24sp" />

        </android.support.v7.widget.LinearLayoutCompat>

    </android.support.v7.widget.LinearLayoutCompat>

    <!--/** 2nd outer nested horizontal layout - mid column **/-->

    <android.support.v7.widget.LinearLayoutCompat 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:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="horizontal">

        <!--/** Team A **/-->

        <android.support.v7.widget.LinearLayoutCompat 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:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="52dp"
            android:layout_weight="1"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:fontFamily="sans-serif-medium"
                android:padding="12dp"
                android:text="Player A Score"
                android:textColor="#616161"
                android:textSize="14sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/team_a_score"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="24dp"
                android:fontFamily="sans-serif-light"
                android:padding="8dp"
                android:text="0"
                android:textColor="#000000"
                android:textSize="56sp" />

            <Button
                android:id="@+id/three_point_text_view"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:onClick="addFiftForTeamA"
                android:paddingHorizontal="28dp"
                android:text="15" />

            <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginVertical="8dp"
                android:onClick="addThirtForTeamA"
                android:paddingHorizontal="28dp"
                android:text="30" />

            <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:onClick="addFourForTeamA"
                android:paddingHorizontal="28dp"
                android:text="40" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="1dp"
                android:fontFamily="sans-serif-light"
                android:padding="1dp"
                android:text="@string/games_won"
                android:textColor="#000000"
                android:textSize="20sp" />

            <TextView
                android:id="@+id/team_a_gameswon"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="1dp"
                android:fontFamily="sans-serif-light"
                app:padding="1dp"
                android:text="0"
                android:textColor="#000000"
                android:textSize="24sp" />

        </android.support.v7.widget.LinearLayoutCompat>

        <!--/** Vertical Gray Line **/-->

        <android.support.v7.widget.LinearLayoutCompat 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:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_gravity="center"
            android:layout_marginTop="42dp"
            android:background="@android:color/darker_gray"
            android:padding="1dp">

        </android.support.v7.widget.LinearLayoutCompat>

        <!--/** Team B **/-->

        <android.support.v7.widget.LinearLayoutCompat 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:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="52dp"
            android:layout_weight="1"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:fontFamily="sans-serif-medium"
                android:padding="12dp"
                android:text="Player B Score"
                android:textColor="#616161"
                android:textSize="14sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/team_b_score"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="24dp"
                android:fontFamily="sans-serif-light"
                android:padding="8dp"
                android:text="0"
                android:textColor="#000000"
                android:textSize="56sp" />

            <Button
                android:id="@+id/three_point_text_viewB"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:onClick="addFiftForTeamB"
                android:paddingHorizontal="28dp"
                android:text="15" />

            <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginVertical="8dp"
                android:onClick="addThirtForTeamB"
                android:paddingHorizontal="28dp"
                android:text="30" />

            <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:onClick="addFourForTeamB"
                android:paddingHorizontal="28dp"
                android:text="40" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="1dp"
                android:fontFamily="sans-serif-light"
                android:padding="1dp"
                android:text="@string/games_won"
                android:textColor="#000000"
                android:textSize="20sp" />

            <TextView
                android:id="@+id/team_b_gameswon"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="1dp"
                android:fontFamily="sans-serif-light"
                android:padding="1dp"
                android:text="0"
                android:textColor="#000000"
                android:textSize="24sp" />

        </android.support.v7.widget.LinearLayoutCompat>

    </android.support.v7.widget.LinearLayoutCompat>

    <!--/** 3rd outer nested horizontal layout - bottom row **/-->

    <Button
        android:id="@+id/tTop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="24dp"
        android:onClick="resetBothScores"
        android:text="Reset Game"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="5dp"
        android:fontFamily="sans-serif-light"
        android:padding="1dp"
        android:text="* 1 match = 6 games"
        android:textColor="#000000"
        android:textSize="14sp"
        android:textStyle="italic"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/tTop"
        tools:ignore="UnusedAttribute" />

</android.support.constraint.ConstraintLayout>

colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>
</resources>

MainActivity.java

package com.example.android.scorekeeper;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

import static java.lang.String.*;

public class MainActivity extends AppCompatActivity {

    int scoreA = 0;
    int scoreB = 0;
    int numGameWonA = 0;
    int numGameWonB = 0;
    int numOfGame = 0;
    int numOfMatch = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

//    /**
//     * Displays the score for tennis player A.
//     **/

    public void displayForTeamA(int scoreA) {
        TextView scoreView = (TextView) findViewById(R.id.team_a_score);
        scoreView.setText(valueOf(scoreA));
    }

//    /**
//     * Displays the score for tennis player B.
//     **/

    public void displayForTeamB(int scoreB) {
        TextView scoreView = (TextView) findViewById(R.id.team_b_score);
        scoreView.setText(valueOf(scoreB));
    }

//    /**
//     * Displays number of games won by tennis player A.
//     **/

    public void displayGamesWonForTeamA(int numGameWonA) {
        TextView scoreView = (TextView) findViewById(R.id.team_a_gameswon);
        scoreView.setText(valueOf(numGameWonA));
    }

//    /**
//     * Displays number of games won tennis player B.
//     **/

    public void displayGamesWonForTeamB(int numGameWonB) {
        TextView scoreView = (TextView) findViewById(R.id.team_b_gameswon);
        scoreView.setText(valueOf(numGameWonB));
    }

//    /**
//     * Displays total number of tennis games played.
//     **/

    public void displayForNumGame(int numOfGame) {
        TextView scoreView = (TextView) findViewById(R.id.gameNumber);
        scoreView.setText(valueOf(valueOf(numOfGame)));
    }

//    /**
//     * Displays total number of tennis matches played. 1 tennis match has 6 games.
//     */

    public void displayMatchGame(int numOfMatch, int numOfGame) {
        TextView scoreView = (TextView) findViewById(R.id.gameNumber);
        scoreView.setText("[ " + valueOf(numOfMatch) + " - " + valueOf(numOfGame) + " ]");
    }

//    /**
//     * Displays score for player A. At 40 points, calculates number of games and matches.
//     **/

    public void addFiftForTeamA(View view) {
        scoreA = 15;
        displayForTeamA(scoreA);
    }

    public void addThirtForTeamA(View view) {
        scoreA = 30;
        displayForTeamA(scoreA);
    }

    public void addFourForTeamA(View view) {
        scoreA = 40;
        numOfGame = numOfGame + 1;
        numGameWonA = numGameWonA + 1;

        displayForTeamA(scoreA);
        displayGamesWonForTeamA(numGameWonA);

        if (numOfGame <= 6) {
            displayMatchGame(numOfMatch, numOfGame);
        } else {
            numOfGame = 0;
            numOfMatch = numOfMatch + 1;
            displayMatchGame(numOfMatch, numOfGame);
        }
    }

//    /**
//     * Displays score for player B. At 40 points, calculates number of games and matches.
//     **/

    public void addFiftForTeamB(View view) {
        scoreB = 15;
        displayForTeamB(scoreB);
    }

    public void addThirtForTeamB(View view) {
        scoreB = 30;
        displayForTeamB(scoreB);
    }

    public void addFourForTeamB(View view) {
        scoreB = 40;
        numOfGame = numOfGame + 1;
        numGameWonB = numGameWonB + 1;

        displayForTeamB(scoreB);
        displayGamesWonForTeamB(numGameWonB);

        if (numOfGame <= 6) {
            displayMatchGame(numOfMatch, numOfGame);
        } else {
            numOfGame = 0;
            numOfMatch = numOfMatch + 1;
            displayMatchGame(numOfMatch, numOfGame);
        }
    }

//    /**
//     * Resets game score for each player.
//     **/

    public void resetBothScores(View view) {
        scoreA = 0;
        scoreB = 0;

        displayForTeamA(scoreA);
        displayForTeamB(scoreB);
    }

}

strings.xml

<resources>
    <string name="app_name">Score Keeper - Tennis</string>
    <string name="games_won">Games won:</string>
</resources>

styles.xml

<resources>

    <style name="AppTheme" parent="Theme.AppCompat.Light">
        <!-- Primary theme color of the app (sets background color of app bar) -->
        <item name="colorPrimary">#FF969E</item>
        <!-- Background color of buttons in the app -->
        <item name="colorButtonNormal">#FF969E</item>
    </style>

</resources>