Android Open Source - SudokuSolver Sudoku Solver Task

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License

The source code is released under:

License JSON Sudoku Solver is covered under the Creative Commons Attribution 3.0 Unported License http://creativecommons.org/licenses/by/3.0/ Credits Sudoku Solver Java implementation: Kevin Coulombe...

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Java Source Code

/**
 * JSON Sudoku solver is covered under the Creative Commons Attribution 3.0 Unported License
 * http://creativecommons.org/licenses/by/3.0/
 * /*from  w  w  w  .jav  a 2  s . c  om*/
 * @author: Andrea Bizzotto {@link www.musevisions.com}, {@link www.bizzotto.biz}
 * @email: bizz84dev@gmail.com
 */
package com.musevisions.android.SudokuSolver;

import com.musevisions.android.SudokuSolver.SudokuCore.SolverListener;
import com.musevisions.android.SudokuSolver.SudokuCore.SolverMethod;

import android.os.AsyncTask;


public class SudokuSolverTask extends AsyncTask<Void, int[], Void> implements SolverListener {
    private int mPuzzle[];
    private int mSolution[];
    private SolverListener mListener;
    private GridView mGridView;
    private SolverMethod mMethod;
    private boolean inProgress;


    public SudokuSolverTask(int puzzle[], SolverListener listener,
        GridView updateView, SolverMethod method) {
        mPuzzle = puzzle;
        mListener = listener;
        mGridView = updateView;
        mMethod = method;
        inProgress = false;
    }

    @Override
    protected Void doInBackground(Void... arg0) {
      switch(mMethod) {
      case SOLVER_BRUTE_FORCE:
            mSolution = SudokuCore.solveMethodBruteForce(mPuzzle, this);
            break;
      case SOLVER_OPTIMISED:
            mSolution = SudokuCore.solveMethodOptimised(mPuzzle);
            break;            
      }
        return null;
    }
    
    
    @Override
    protected void onPreExecute() {
      inProgress = true;

    }

    protected void onProgressUpdate(int[]... values) {
      mGridView.setSolution(values[0]);
    }

    /** Listener */
    @Override
    protected void onPostExecute(Void result) {
      inProgress = false;
        mListener.onSolverEvent(mSolution);
    }

    /** Updater */
  @Override
  public boolean onSolverEvent(int[] result) {
    publishProgress(result);
    if (isCancelled() || !inProgress) {
      return false;
    }
    return true;
  }

  public boolean inProgress() {
    return inProgress;
  }
}

Java Source Code List