自己定义View  实现 五子棋 

配图：

代码：

package com.example.fiveson;import java.util.LinkedList;import java.util.List;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;public class FiveSon extends View {	public FiveSon(Context context) {		super(context);		// TODO Auto-generated constructor stub		init(context, null);	}	public FiveSon(Context context, AttributeSet attrs) {		super(context, attrs);		// TODO Auto-generated constructor stub		init(context, attrs);	}	public FiveSon(Context context, AttributeSet attrs, int defStyleAttr) {		super(context, attrs, defStyleAttr);		// TODO Auto-generated constructor stub		init(context, attrs);	}		private Paint paint = new Paint();	private Paint circlePaint = new Paint();		// 旗子： 信息  代表 第几行 第几列？	private List
     
       chesses = new LinkedList
      
       ();		private void init(Context context, AttributeSet attrs)	{		chesses.add(new int[]{3,5});		chesses.add(new int[]{3,6});	}			int spacing = 100;			@Override	protected void onDraw(Canvas canvas) {		// TODO Auto-generated method stub		super.onDraw(canvas);				int width = getWidth();		int height = getHeight();						//1 绘制 X 坐标				int num = width / spacing;				paint.setColor(Color.BLACK);		for(int i=0;i<=num;i++)		{			canvas.drawLine(spacing*i, 0, spacing*i, height, paint);		}				num = height/spacing;				for(int i=0;i<=num;i++)		{			canvas.drawLine(0,spacing*i, width,spacing*i, paint);		}				//2 绘制Y 坐标								//3 绘制 旗子				if(!chesses.isEmpty())		{						int count = chesses.size();						for(int i=0;i
       
        =(spacing/2))			{				colcc++;			}			if(rowcc>=(spacing/2))			{				rowcc++;			}			//			推断什么时候add 			int len = chesses.size();						if(len>0)			{				boolean has = false;				for(int i = len-1;i>=0;i--)				{					int[] chs = chesses.get(i);					if(rowNum == chs[0] && colNum == chs[1])					{						has = true;						break;					}				}				if(!has)				{					chesses.add(new int[]{rowNum,colNum});					invalidate();				}			}else {				chesses.add(new int[]{rowNum,colNum});				invalidate();			}						isComsumed = true;					}else {			isComsumed = super.onTouchEvent(event);		}				return super.onTouchEvent(event);			}	}