android五子棋盘的画法

这篇文章本身并没有多少要要学习的知识点，只是一种界面制作的方法吧！

主活动中并没有多少东西：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    ChessBoard chesss=new ChessBoard(this);
    setContentView(chesss);
}

接下来就是棋盘类的书写了：

public class ChessBoard extends View {
    public int w;
    public int h;
    ZhiZuo hua;

    public ChessBoard(Context context) {
        super(context);
        w = context.getResources().getDisplayMetrics().widthPixels;
        h = context.getResources().getDisplayMetrics().heightPixels;
        hua=new ZhiZuo(this);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        setMeasuredDimension(w, h);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        //绘制线
        hua.huaxian(canvas);
        //绘制棋子
        hua.huazi(canvas);
        invalidate();
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (event.getAction()==MotionEvent.ACTION_DOWN){
           /// int event=(int)event.GetX()
            int eventx=(int)event.getX();
            int eventy=(int)event.getY();
            hua.luozi(eventx,eventy);
        }
       return true;
    }
}

最后呢！是具体的线的绘画，和棋子的绘画，还有是否落子的方法实现：

public class ZhiZuo {
    private int w, h;
    private final int jianju = 50;
    private int numline, numcolumn;

    private Paint paint;

    private final int radius = 15;
    private int cx, cy;
    private int cLine, cColumn;
    private boolean isBlack;
    private List list;

    public ZhiZuo(ChessBoard cb) {
        this.w = cb.w;
        this.h = cb.h;

        numline = h / jianju;
        numcolumn = w / jianju;
        paint = new Paint();
        paint.setColor(Color.BLACK);
        paint.setStrokeWidth(4);
        list = new ArrayList();
    }

    public void luozi(int eventx, int eventy) {
        cColumn = eventx / jianju;
        cLine = eventy / jianju;

        int modex = eventx % jianju;
        int modey = eventy % jianju;

        if (modex < jianju / 2 && modey < jianju / 2) {

        } else if (modex > jianju / 2 && modey < jianju / 2) {
            cColumn += 1;
        } else if (modex < jianju / 2 && modey > jianju / 2) {
            cLine += 1;
        } else if (modex > jianju / 2 && modey > jianju / 2) {
            cLine += 1;
            cColumn += 1;
        }
        cx = cColumn * jianju;
        cy = cLine * jianju;
        for (int i = 0; i < list.size(); i++) {
            Point p = list.get(i);
            if (p.x == cx && p.y == cy) {
                return;
            }
        }
        list.add(new Point(cx, cy));

    }

    public void huaxian(Canvas canvas) {

        canvas.drawColor(Color.GRAY);
        paint.setColor(Color.BLACK);
        int i = 0;
        for (i = 0; i <= numline; i++) {
            canvas.drawLine(0, jianju * i, w, jianju*i, paint);
        }
        for (i = 0; i <= numcolumn; i++) {
            canvas.drawLine(jianju * i, 0,jianju*i,h, paint);
        }

    }

    public void huazi(Canvas canvas) {
        Point p=null;
        paint.setStyle(Paint.Style.FILL);
        for (int i = 0; i < list.size(); i++) {
            paint.setColor(i%2==1?Color.BLACK:Color.WHITE);
            p=list.get(i);
            canvas.drawCircle(p.x, p.y, radius, paint);
        }
    }
}