dimens.xml

<resources>

    <!-- Default screen margins, per the Android Design guidelines. -->
    <dimen name="activity_horizontal_margin">16dp</dimen>
    <dimen name="activity_vertical_margin">16dp</dimen>

</resources>

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
    <string name="hello">Hello World, Sudoku!</string>
    <string name="app_name">Sudoku</string>
    <string name="main_title">Android Sudoku</string>
    <string name="continue_label">Continue</string>
    <string name="new_game_label">New Game</string>
    <string name="about_label">About</string>
    <string name="exit_label">Exit</string>
    <string name="about_title">About Android Sudoku</string>
    <string name="about_text">\
Sudoku is a logic-based number placement puzzle.
Starting with a partially completed 9x9 grid, the
objective is to fill the grid so that each
row, each column, and each of the 3x3 boxes
(also called <i>blocks</i>) contains the digits
1 to 9 exactly once.</string>
    <string name="settings_label">Settings…</string>
    <string name="settings_title">Sudoku settings</string>
    <string name="settings_shortcut">s</string>
    <string name="music_title">Music</string>
    <string name="music_summary">Play background music</string>
    <string name="hints_title">Hints</string>
    <string name="hints_summary">Show hints during play</string>
    <string name="new_game_title">Difficulty</string>
    <string name="easy_label">Easy</string>
    <string name="medium_label">Medium</string>
    <string name="hard_label">Hard</string>
    <string name="extreme_label">Extreme</string>
    <string name="game_title">Game</string>
    <string name="high_score_label">High Score</string>
    <string name="no_moves_label">No moves</string>
    <string name="keypad_title">Keypad</string>
    <string name="num_0">0</string>
    <string name="num_1">1</string>
    <string name="num_2">2</string>
    <string name="num_3">3</string>
    <string name="num_4">4</string>
    <string name="num_5">5</string>
    <string name="num_6">6</string>
    <string name="num_7">7</string>
    <string name="num_8">8</string>
    <string name="num_9">9</string>

</resources>

Values Folder in Sudoku Game

arrays.xml

colors.xml

dimens.xml

strings.xml

styles.xml

arrays.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string-array name="difficulty">

        <item>@string/easy_label</item>

        <item>@string/medium_label</item>

        <item>@string/hard_label</item>

        <item>@string/extreme_label</item>

    </string-array>

</resources>

colors.xml

<?xml version="1.0" encoding="utf-8"?>

<!--

 ! Excerpted from "Hello, Android!",

 ! published by The Pragmatic Bookshelf.

 ! Copyrights apply to this code. It may not be used to create training material, 

 ! courses, books, articles, and the like. Contact us if you are in doubt.

 ! We make no guarantees that this code is fit for any purpose. 

 ! Visit http://www.pragmaticprogrammer.com/titles/eband for more book information.

-->

<resources>

   <color name="background">#3500ffff</color>

   

   <color name="puzzle_background">#ffe6f0ff</color>

   <color name="puzzle_hilite">#ffffffff</color>

   <color name="puzzle_light">#64c6d4ef</color>

   <color name="puzzle_dark">#6456648f</color>

   <color name="puzzle_foreground">#ff000000</color>

   <color name="puzzle_hint_0">#64ff0000</color>

   <color name="puzzle_hint_1">#6400ff80</color>

   <color name="puzzle_hint_2">#2000ff80</color>

   <color name="puzzle_selected">#64ff8000</color>

   

</resources>

Main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/background"
    android:gravity="center"
    android:orientation="vertical"
    android:padding="30dip" >





    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="25dip"
        android:text="@string/main_title"
        android:textSize="24.5sp" />




    <Button
        android:id="@+id/continue_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/continue_label" />



    <Button
        android:id="@+id/new_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/new_game_label" />


<Button
        android:id="@+id/high_score"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/high_score_label" />


    <Button
        android:id="@+id/about_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/about_label" />



    <Button
        android:id="@+id/exit_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/exit_label" />

</LinearLayout>

High Score Panel in Sudoku Game

high_score_panel.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/background"
    android:gravity="center"
    android:orientation="vertical"
    android:padding="30dip" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="25dip"
        android:text="High Score Panel"
        android:textSize="24.5sp" />
   
    <EditText
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="Name"
        android:inputType="text"
        android:text="" />

    <TextView
        android:id="@+id/difficulty"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:textSize="20sp"
        android:text="" />

    <TextView
        android:id="@+id/timeElapsed"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:textSize="20sp"
        android:text="" />

    <Button
        android:id="@+id/scoreSave"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Save"
        android:onClick="onClickSave"
        android:layout_marginTop="20dp" />

</LinearLayout>

Button.xml

<?xml version="1.0" encoding="utf-8"?>
<com.vikesh.gamesudoku.view.buttonsgrid.NumberButton
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/button"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

cell.xml

<?xml version="1.0" encoding="utf-8"?>
<com.vikesh.gamesudoku.view.sudokugrid.SudokuCell
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background ="@drawable/cell_shape" />

high_score.xml

<TableLayout

            xmlns:android="http://schemas.android.com/apk/res/android"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:shrinkColumns="*"  android:stretchColumns="*" android:background="#ffffff">

                        <!-- Row 1 with single column -->

                        <TableRow

                            android:id="@+id/tableRow1"

                            android:layout_height="wrap_content"

                            android:layout_width="fill_parent"

                            android:gravity="center_horizontal">

                            <TextView

                                android:layout_width="match_parent" android:layout_height="wrap_content"

                                android:textSize="18dp" android:text="---------High Score-------"  android:layout_span="3"

                                android:padding="18dip" android:background="#b0b0b0"

                                android:textColor="#000"/>

                       </TableRow>

         

                        <!-- Row 2 with 3 columns -->

                        <TableRow

                            android:id="@+id/tableRow2"

                            android:layout_height="wrap_content"

                            android:layout_width="match_parent">

                            <TextView

                                android:id="@+id/TextView04" android:text=""

                                android:layout_weight="1" android:background="#dcdcdc"

                                android:textColor="#000000"

                                android:padding="20dip" android:gravity="center"/>

                            <TextView

                                android:id="@+id/TextView041" android:text="Row 2 column 2"

                                android:layout_weight="1" android:background="#d3d3d3"

                                android:textColor="#000000"

                                android:padding="20dip" android:gravity="center"/>

                            <TextView

                                android:id="@+id/TextView042" android:text="Row 2 column 3"

                                android:layout_weight="1" android:background="#cac9c9"

                                android:textColor="#000000"

                                android:padding="20dip" android:gravity="center"/>

                        </TableRow>

                         

                        <!-- Row 3 with 3 columns -->

                        <TableRow

                            android:id="@+id/tableRow3"

                            android:layout_height="wrap_content"

                            android:layout_width="fill_parent"

                            android:gravity="center_horizontal">

                            <TextView

                                android:id="@+id/TextView043" android:text="Row 3 column 1"

                                android:layout_weight="1"  android:background="#b0b0b0"

                                android:textColor="#000000"

                                android:padding="18dip" android:gravity="center"/>

                     

                            <TextView

                                android:id="@+id/TextView044" android:text="Row 3 column 2"

                                android:layout_weight="1" android:background="#a09f9f"

                                android:textColor="#000000"

                                android:padding="18dip" android:gravity="center"/>

                            <TextView

                                android:id="@+id/TextView045" android:text="Row 3 column 2"

                                android:layout_weight="1" android:background="#a09f9f"

                                android:textColor="#000000"

                                android:padding="18dip" android:gravity="center"/>

                        </TableRow>

                        

                        <TableRow

                            android:id="@+id/tableRow4"

                            android:layout_height="wrap_content"

                            android:layout_width="fill_parent"

                            android:gravity="center_horizontal">

                            <TextView

                                android:id="@+id/TextView046" android:text="Row 3 column 1"

                                android:layout_weight="1"  android:background="#b0b0b0"

                                android:textColor="#000000"

                                android:padding="18dip" android:gravity="center"/>

                     

                            <TextView

                                android:id="@+id/TextView047" android:text="Row 3 column 2"

                                android:layout_weight="1" android:background="#a09f9f"

                                android:textColor="#000000"

                                android:padding="18dip" android:gravity="center"/>

                            <TextView

                                android:id="@+id/TextView048" android:text="Row 3 column 2"

                                android:layout_weight="1" android:background="#a09f9f"

                                android:textColor="#000000"

                                android:padding="18dip" android:gravity="center"/>

                        </TableRow>

                         

      </TableLayout>

Layout File in Sudoku

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.vikesh.gamesudoku.MainActivity">

     <Chronometer
        android:id="@+id/chronometer1"
        android:textColor="#4169E1"
        android:textSize="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:text="Chronometer" />
   
    <com.vikesh.gamesudoku.view.sudokugrid.SudokuGridView
        android:id="@+id/sudokuGridView"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_below="@+id/chronometer1"
        android:numColumns="9"
        android:horizontalSpacing="0dp"
        android:verticalSpacing="0dp" />
    <com.vikesh.gamesudoku.view.buttonsgrid.ButtonsGridView
        android:id="@+id/buttonsGridView"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_below="@+id/sudokuGridView"
        android:numColumns="6" />
       
</RelativeLayout>

Layout File in Sudoku Project

Layout File

about.xml

activity_main.xml

button.xml

cell.xml

high_score.xml

high_score_panel.xml

main.xml

About.xml

<?xml version="1.0" encoding="utf-8"?>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent" 

    android:padding="10dip">

    <TextView

        android:id="@+id/about_content"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/about_text" />

</ScrollView>

Sudoku Communicator i.e Adapter

Sudoku Adapter

package com.vikesh.gamesudoku.view.sudokugrid;

import com.vikesh.gamesudoku.GameEngine;
import com.vikesh.gamesudoku.R;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

public class SudokuGridViewAdapter extends BaseAdapter {

private Context context;

public SudokuGridViewAdapter(Context context){
this.context =context;
}
@Override
public int getCount() {
return 81;
}

@Override
public Object getItem(int arg0) {
return null;
}

@Override
public long getItemId(int arg0) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
/*View v = convertView;
if(v==null)
{
LayoutInflater inflatar = ((Activity)context).getLayoutInflater();
v = inflatar.inflate(R.layout.cell,parent,false);
}

int x = position%9;
int y = position/9;
SudokuCell cell = (SudokuCell)v;
cell.setNumber(GameEngine.getInstance().getSudoku()[x][y]);*/

return GameEngine.getInstance().getGrid().getItem(position);
}

}

SudokuGridView.java

package com.vikesh.gamesudoku.view.sudokugrid;

import com.vikesh.gamesudoku.GameEngine;

import android.R.color;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.util.AttributeSet;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.Toast;

public class SudokuGridView extends GridView {
private Context context;
Canvas canvas = new Canvas();
public SudokuGridView(final Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
this.context = context;
SudokuGridViewAdapter gridViewAdapter = new SudokuGridViewAdapter(context);
setAdapter(gridViewAdapter);

setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View view, int position,
long arg3) {


int x = position%9;
int y = position/9;
GameEngine.getInstance().setSelectedPosition(x, y);
//Toast.makeText(context,"Selected item x="+x+"y="+y,Toast.LENGTH_SHORT).show();

}

});
}

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec,widthMeasureSpec);
}
}