Google Developer Challenge Scholarship - Android Basics / Court Counter

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#F5F5F6"
    android:gravity="center"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/main_linear"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        tools:context=".MainActivity">

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical"
            android:paddingEnd="@dimen/large_padding"
            android:paddingStart="@dimen/large_padding">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="@dimen/normal_margin"

                android:fontFamily="sans-serif"
                android:gravity="center_horizontal"
                android:text="@string/water"
                android:textAllCaps="true"
                android:textColor="#616161"
                android:textSize="@dimen/title_text" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="@dimen/icon_height"
                android:layout_marginTop="@dimen/normal_margin"
                android:src="@drawable/water"></ImageView>

            <TextView
                android:id="@+id/water_score"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:fontFamily="sans-serif-light"
                android:gravity="center_horizontal"
                android:text="@string/zero_ml"
                android:textColor="#000000"
                android:textSize="@dimen/maxi_text" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/mini_margin"
                android:layout_marginEnd="@dimen/small_margin"
                android:layout_marginStart="@dimen/small_margin"
                android:layout_marginTop="@dimen/top_button_margin"
                android:fontFamily="sans-serif"
                android:onClick="plus250mlWater"
                android:text="@string/s250ml"
                android:textColor="#ffffff"
                android:textSize="@dimen/normal_text" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/mini_margin"
                android:layout_marginEnd="@dimen/small_margin"
                android:layout_marginStart="@dimen/small_margin"
                android:fontFamily="sans-serif"
                android:onClick="plus350mlWater"
                android:text="@string/s350ml"
                android:textColor="#ffffff"
                android:textSize="@dimen/normal_text" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/mini_margin"
                android:layout_marginEnd="@dimen/small_margin"
                android:layout_marginStart="@dimen/small_margin"
                android:fontFamily="sans-serif"
                android:onClick="plus500mlWater"
                android:text="@string/s500ml"
                android:textColor="#ffffff"
                android:textSize="@dimen/normal_text" />

        </LinearLayout>

        <View
            android:layout_width="1dp"
            android:layout_height="match_parent"
            android:layout_marginTop="@dimen/normal_margin"
            android:background="@android:color/darker_gray" />

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical"
            android:paddingEnd="@dimen/large_padding"
            android:paddingStart="@dimen/large_padding">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="@dimen/normal_margin"
                android:fontFamily="sans-serif"
                android:gravity="center_horizontal"
                android:text="@string/beverages"
                android:textAllCaps="true"
                android:textColor="#616161"
                android:textSize="@dimen/title_text" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="@dimen/icon_height"
                android:layout_marginTop="@dimen/normal_margin"
                android:src="@drawable/juice"></ImageView>

            <TextView
                android:id="@+id/juice_score"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:fontFamily="sans-serif-light"
                android:gravity="center_horizontal"
                android:text="@string/zero_ml"
                android:textColor="#000000"
                android:textSize="@dimen/maxi_text" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/mini_margin"
                android:layout_marginEnd="@dimen/small_margin"
                android:layout_marginStart="@dimen/small_margin"
                android:layout_marginTop="@dimen/top_button_margin"
                android:fontFamily="sans-serif"
                android:onClick="plus250mlJuice"
                android:text="@string/s250ml"
                android:textColor="#ffffff"
                android:textSize="@dimen/normal_text" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/mini_margin"
                android:layout_marginEnd="@dimen/small_margin"
                android:layout_marginStart="@dimen/small_margin"
                android:fontFamily="sans-serif"
                android:onClick="plus350mlJuice"
                android:text="@string/s350ml"
                android:textColor="#ffffff"
                android:textSize="@dimen/normal_text" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="@dimen/mini_margin"
                android:layout_marginEnd="@dimen/small_margin"
                android:layout_marginStart="@dimen/small_margin"
                android:fontFamily="sans-serif"
                android:onClick="plus500mlJuice"
                android:text="@string/s500ml"
                android:textColor="#ffffff"
                android:textSize="@dimen/normal_text" />

        </LinearLayout>

    </LinearLayout>

    <TextView
        android:id="@+id/goal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="@dimen/large_margin"
        android:layout_marginEnd="@dimen/maxi_margin"
        android:layout_marginStart="@dimen/maxi_margin"
        android:layout_marginTop="@dimen/large_margin"
        android:onClick="resetBoth"
        android:text="@string/infobox"
        android:textSize="@dimen/infobox_text" />

    <Button
        android:id="@+id/reset_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="@dimen/small_margin"
        android:background="#FF7C80"
        android:fontFamily="sans-serif"
        android:onClick="resetBoth"
        android:text="@string/reset"
        android:textColor="#ffffff"
        android:textSize="@dimen/normal_text" />

</LinearLayout>

MainActivity.java

package com.example.android.courtcounter;

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

public class MainActivity extends AppCompatActivity {

    /**
     * HERE Create The GLOBAL Variable
     */

    int scoreWater = 0;
    int scoreJuice = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        displayForWater(0);
    }


    /**
     * Displays the given score for Team A.
     */
    public void displayForWater(int score) {
        TextView scoreView = (TextView) findViewById(R.id.water_score);
        scoreView.setText(String.valueOf(score) + " ml");
    }

    public void plus250mlWater(View v) {
        scoreWater = scoreWater + 250;
        displayForWater(scoreWater);
    }

    public void plus350mlWater(View v) {
        scoreWater = scoreWater + 350;
        displayForWater(scoreWater);
    }

    public void plus500mlWater(View v) {
        scoreWater = scoreWater + 500;
        displayForWater(scoreWater);
    }

    /**
     * Displays the given score for Team B.
     */

    public void displayForJuice(int score) {
        TextView scoreView = (TextView) findViewById(R.id.juice_score);
        scoreView.setText(String.valueOf(score) + " ml");
    }

    public void plus250mlJuice(View v) {
        scoreJuice = scoreJuice + 250;
        displayForJuice(scoreJuice);

    }

    public void plus350mlJuice(View v) {
        scoreJuice = scoreJuice + 350;
        displayForJuice(scoreJuice);
    }

    public void plus500mlJuice(View v) {
        scoreJuice = scoreJuice + 500;
        displayForJuice(scoreJuice);
    }

// RESET button:

    public void resetBoth(View v) {
        scoreJuice = 0;
        scoreWater = 0;
        displayForJuice(scoreJuice);
        displayForWater(scoreWater);
    }

}