五子棋的棋盘Android版

子棋的棋盘Android版实现，具体上下文可以参考上一篇的五子棋AI实现中的代码
[java]
import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;

//棋盘
public class Chessboard extends View implements IChessboard{

    //游戏状态常量：
    //已准备好，可开局
    private static final int READY = 1;
    //已开局
    private static final int RUNNING = 2;
    //已结束
    private static final int PLAYER_TWO_LOST = 3;
    private static final int PLAYER_ONE_LOST = 4;

    //当前状态，默认为可开局状态
    private int currentMode = READY;

    //画笔对象
    private final Paint paint = new Paint();

    //代表绿色
    private static final int GREEN = 0;
    private static final int NEW_GREEN = 1;

    //红色
    private static final int RED = 2;
    //黄色
    private static final int NEW_RED = 3;

    //点大小
    private static int pointSize = 20;

    //用于提示输赢的文本控件
    private TextView textView = null;

    //不同颜色的Bigmap数组
    private Bitmap[] pointArray = new Bitmap[4];

    //屏幕右下角的坐标值，即最大坐标值
    private static int maxX;
    private static int maxY;

    //第一点偏离左上角从像数，为了棋盘居中
    private static int yOffset;
    private static int xOffset;

    //两个玩家
    //第一个玩家默认为人类玩家
    private IPlayer player1 = new HumanPlayer();
    //第二个则根据选择人机战还是对战模式来初始化
    private IPlayer player2;
    //预先初始两个第二玩家
    //电脑玩家
    private static IPlayer computer = AiFactory.getInstance(2);
    //人类玩家
    private static final IPlayer human = new HumanPlayer();

    // 所有未下的空白点
    private final List<Point> allFreePoints = new ArrayList<Point>();

    public Chessboard(Context context, AttributeSet attrs) {
        super(context, attrs);
        setFocusable(true);

        //把三个颜色的点准备好，并放入数组
        Resources r = this.getContext().getResources();
        fillPointArrays(GREEN,r.getDrawable(R.drawable.green_point));
        fillPointArrays(NEW_GREEN,r.getDrawable(R.drawable.new_green_point));
        fillPointArrays(RED,r.getDrawable(R.drawable.red_point));
        fillPointArrays(NEW_RED,r.getDrawable(R.drawable.new_red_point));

        //设置画线时用的颜色
        paint.setColor(Color.LTGRAY);
   }


    //初始横线和竖线的数目
    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        maxX = (int) Math.floor(w / pointSize);
        maxY = (int) Math.floor(h / pointSize);

        //设置X、Y座标微调值，目的整个框居中
        xOffset = ((w - (pointSize * maxX)) / 2);
        yOffset = ((h - (pointSize * maxY)) / 2);
        //创建棋盘上的线条
        createLines();
        //初始化棋盘上所有空白点
        createPoints();
    }

    //产生棋盘上所有的线
    private void createLines(){
        for (int i = 0; i <= maxX; i++) {//竖线
            lines.add(new Line(xOffset+i*pointSize-pointSize/2, yOffset, xOffset+i*pointSize-pointSize/2, yOffset+maxY*pointSize));
        }
        for (int i = 0; i <= maxY; i++) {//横线
            lines.add(new Line(xOffset, yOffset+i*pointSize-pointSize/2, xOffset+maxX*pointSize, yOffset+i*pointSize-pointSize/2));
        }
    }

    //画棋盘
    private List<Line> lines = new ArrayList<Line>();
    private void drawChssboardLines(Canvas canvas){
        for (Line line : lines) {
            canvas.drawLine(line.xStart, line.yStart, line.xStop, line.yStop, paint);
        }
    }

    //线类
    class Line{
        float xStart,yStart,xStop,yStop;
        public Line(float

补充：移动开发 , Android ,