Android Open Source - ClassicSudoku New Game Activity

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From Project

Back to project page ClassicSudoku.

License

The source code is released under:

MIT License

Java Source Code

package com.jeffvk.classicsudoku;
//from   w w  w .  ja  va 2  s .  co m
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.CheckedTextView;
import android.widget.GridView;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;

import com.jeffvk.classicsudoku.game.*;

public class NewGameActivity extends Activity {

  private Board game;
  private GridView grid;
  private CheckedTextView lastGridBox;
  private int lastGridBoxIndex;
  private TextView clock;
  private Thread t;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_new_game);
    
    int difficulty = 0;
    String content = "";
    game = new Board();
    Intent cameFrom = getIntent();
    content = cameFrom.getStringExtra(MainActivity.EXTRA_LOAD);
    if(content.length() == 1)
    {
      difficulty = (int)(content.charAt(0)-48);
      game.newBoard(difficulty);
    }
    else
    {
      File file = new File(this.getFilesDir()+"/sudokuGame.txt");
      try {
        FileReader fr = new FileReader(file);
        BufferedReader br = new BufferedReader(fr);
        String state = br.readLine();
        br.close();
        System.out.println(state);
        game.loadBoard(state);
      } catch (IOException e) {
        e.printStackTrace();
        Toast
          .makeText(this, "Can't Read File", Toast.LENGTH_SHORT)
          .show();
      }
    }
    
    grid = (GridView)findViewById(R.id.grid);
    clock = (TextView) findViewById(R.id.clock);
    t = new Thread(new Runnable() {
            public void run() {
            while(true)
            {
                try
                {
                    Thread.sleep(1000);
                }
                catch(InterruptedException e)
                {
                    break;
                }
                clock.post(new Runnable() {
                    public void run() {
                        clock.setText(game.getTime());
                    }
                });
            }
            }
        });
    
    showBoard();
    
    grid.setOnItemClickListener(
        new OnItemClickListener() {
          @Override
          public void onItemClick(AdapterView<?> parent, View thisGridBox, int position, long id)
          {
            if(lastGridBox != null)
            {
              if(game.checkTileIsOrig(lastGridBoxIndex))
                lastGridBox.setBackgroundColor(Color.LTGRAY);
              else
                lastGridBox.setBackgroundColor(Color.WHITE);
            }
            thisGridBox.setBackgroundColor(Color.CYAN);
            lastGridBox = (CheckedTextView) thisGridBox;
            lastGridBoxIndex = position;
          }
        });
    
    grid.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
      
      @Override
      public void onGlobalLayout() {

        if(lastGridBox != null)
          lastGridBox.setBackgroundColor(Color.CYAN);
        else
        {
          for(int i = 0; i < 81; i++)
          {
            if(game.checkTileIsOrig(i))
              grid.getChildAt(i).setBackgroundColor(Color.LTGRAY);
            else
              grid.getChildAt(i).setBackgroundColor(Color.WHITE);
          }
        }
      }
    });

    t.start();
  }
  
  public void save(View button)
  {
    try {
      String path = this.getFilesDir() + "/sudokuGame.txt";
      File file = new File(path);
      if(!(file.exists()))
        file.createNewFile();
      String state = game.save();
      FileOutputStream fOut = openFileOutput("sudokuGame.txt", MODE_PRIVATE);
      fOut.write(state.getBytes());
      fOut.close();
      Toast
        .makeText(this, "Game Saved!", Toast.LENGTH_SHORT)
        .show();
    } catch (IOException e) {
      e.printStackTrace();
      Toast
        .makeText(this, "Save Failed :(", Toast.LENGTH_SHORT)
        .show();
    }
    
  }

    public void pause(View button)
    {
        game.pause();

        final View pauseDialog = getLayoutInflater().inflate(R.layout.pause_dialog, null);
        new AlertDialog.Builder(this)
                .setView(pauseDialog)
                .setNeutralButton("Resume Game", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        if(game.isStarted())
                            game.start();
                    }
                })
                .show();
    }
  
  public void hint(View button)
  {
    if(lastGridBox != null)
    {
      if(!game.isStarted())
        game.start();
      game.getHint(lastGridBoxIndex);
      lastGridBox.setText(Integer.toString(game.getTileValue(lastGridBoxIndex)));
    }
  }
  
  public void solve(View button)
  {
    if(!game.isStarted())
      game.start();
    game.solve();
    int [] solution = new int [81];
    game.getBoard(solution);
    for(int i = 0; i < 81; i++)
      ((CheckedTextView)grid.getChildAt(i)).setText(Integer.toString(solution[i]));
    Toast
      .makeText(this, "Game finished!", Toast.LENGTH_LONG)
      .show();
    t.interrupt();
  }
  
  public void numClick(View button)
  {
    if(lastGridBox != null)
    {
      if(!game.isStarted())
        game.start();
      int value = game.getTileValue(lastGridBoxIndex);
      switch(button.getId())
      {
      case R.id.clear:
        value = 0;
        break;
      case R.id.num1:
        value = 1;
        break;
      case R.id.num2:
        value = 2;
        break;
      case R.id.num3:
        value = 3;
        break;
      case R.id.num4:
        value = 4;
        break;
      case R.id.num5:
        value = 5;
        break;
      case R.id.num6:
        value = 6;
        break;
      case R.id.num7:
        value = 7;
        break;
      case R.id.num8:
        value = 8;
        break;
      case R.id.num9:
        value = 9;
        break;
      default:
        break;
      }
      if(game.checkTile(lastGridBoxIndex, value))
      {
        game.setTile(lastGridBoxIndex, value);
        if(value != 0)
          lastGridBox.setText(Integer.toString(value));
        else
          lastGridBox.setText(" ");
      }
      else
      {
        Toast
          .makeText(this, "Oops, that can't go there.", Toast.LENGTH_LONG)
          .show();
      }
    }
    clock.setText(game.getTime());
    if(game.isWon())
    {
      Toast
        .makeText(this, "Game Finished!", Toast.LENGTH_LONG)
        .show();
      t.interrupt();
    }
  }
  
  private void showBoard()
  {
    int [] intValues = new int[81];
    String [] stringValues = new String[81];
    game.getBoard(intValues);
    for(int i = 0; i < 81; i++)
    {
      if(intValues[i] == 0)
        stringValues[i] = " ";
      else
        stringValues[i] = Integer.toString(intValues[i]);
    }
    grid.setAdapter(new ArrayAdapter<String>(this, R.layout.grid_text_view, stringValues));
    clock.setText(game.getTime());
  }

}

Java Source Code List

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