Android Open Source - Android-Minesweeper Minesweeper Fragment

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License

The source code is released under:

MIT License

Java Source Code

package com.jigglesoft.minesweeper;
//  ww  w  .j av  a 2 s . c om

import android.app.AlertDialog;
import android.app.Fragment;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.GridView;
import android.widget.TextView;

import com.jigglesoft.minesweeper.game.MinesweeperGame;
import com.jigglesoft.minesweeper.game.MinesweeperGame.Action;
import com.jigglesoft.minesweeper.game.board.Cell;
import com.jigglesoft.minesweeper.game.exceptions.IllegalGameConstructionException;

public class MinesweeperFragment extends Fragment {
  
  private static MinesweeperGame game = new MinesweeperGame();
  
  
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
      
      View view = inflater.inflate(R.layout.minesweeper_fragment, container, false);
      
    GridView boardGridView = (GridView) view.findViewById(R.id.boardGridView);
    
    boardGridView.setOnItemClickListener(new OnItemClickListener(){

      @Override
      public void onItemClick(AdapterView<?> parent, View view, int position,
          long id) {
        Cell cell = (Cell) parent.getAdapter().getItem(position);
        clickCell(cell, MinesweeperGame.Action.PLAY);
      }
      
    });
    
    boardGridView.setOnItemLongClickListener(new OnItemLongClickListener() {

      @Override
      public boolean onItemLongClick(AdapterView<?> parent, View view,
          int position, long id) {
        
        Cell cell = (Cell) parent.getAdapter().getItem(position);
        
        if (cell.hasWarningFlag()) {
          clickCell(cell, MinesweeperGame.Action.REMOVE_FLAG);
        }
        else {
          clickCell(cell, MinesweeperGame.Action.SET_WARNING_FLAG);
        }
        
        return true;
      }
    });
    
    getActivity().invalidateOptionsMenu(); // called to center remaining_bombs_textview when returning from settings
    
      return view;
    }
    
    
    @Override
    public void onStart() {
      super.onStart();
      
      if (game.gameHasEnded()) {
        startNewGame();
      }
      else{
        attachGameToGridView();
        refreshGameViews();
      }
    }
    
    
    public void startNewGame() {
      if (isAdded()) {
        try {
          
          SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getActivity());
          
          int rows = Integer.parseInt(sharedPref.getString(SettingsFragment.KEY_PREF_ROWS, "10"));
          int columns = Integer.parseInt(sharedPref.getString(SettingsFragment.KEY_PREF_COLUMNS, "10"));
          int bombs = Integer.parseInt(sharedPref.getString(SettingsFragment.KEY_PREF_BOMBS, "10"));
          
          game.newGame(rows, columns, bombs);
          
          attachGameToGridView();
          refreshGameViews();
          
        } catch (IllegalGameConstructionException e) {
          createTooManyBombsDialog();
          e.printStackTrace();
        }

      }
  }
    
    public int remainingBombs() {
      return game.getBombsMinusWarningFlags();
    }

    
  private void attachGameToGridView() {
    GridView boardGridView = (GridView) getView().findViewById(R.id.boardGridView);
    boardGridView.setNumColumns(game.getBoard().getCells()[0].length);
    boardGridView.setAdapter(new BoardAdapter(getActivity(), game.getBoard()));
  }

  
    private void refreshGameViews() {
    refreshGameBoard();
    refreshRemainingBombsText();
  }
    
    
  private void refreshRemainingBombsText() {
    
    if (getActivity().findViewById(R.id.action_bombs_remaining_textview) != null) {
      
      TextView remainingBombsTextView = (TextView) getActivity().findViewById(R.id.action_bombs_remaining_textview);
        remainingBombsTextView.setText(String.valueOf(remainingBombs()));
    }
  }

  
  private void refreshGameBoard() {
    GridView boardGridView = (GridView) getView().findViewById(R.id.boardGridView);
    boardGridView.invalidateViews();
  }
  
  
  private void clickCell(Cell cell, Action action) {
    
    if (!game.gameHasEnded()) {
      game.play(cell, action);
      
      // Checked again to see if players move ended the game
      if (game.gameHasEnded()) {
        if (game.playerLost()) createPlayerLostDialog();
        if (game.playerWon()) createPlayerWonDialog();
      }
    }

    refreshGameViews();
  }
  
  
  private void createPlayerWonDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setMessage("You Won").setTitle("Game Over");
    AlertDialog dialog = builder.create();
    dialog.show();
  }

  
  private void createPlayerLostDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setMessage("You Lost").setTitle("Game Over");
    AlertDialog dialog = builder.create();
    dialog.show();  
  }
  
  private void createTooManyBombsDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setMessage("Set number of bombs to less than the number of cells.").setTitle("More bombs than cells.");
    AlertDialog dialog = builder.create();
    dialog.show();  
  }
    
    
}

Java Source Code List

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