android 用paint，canvas 绘图

package com.example.drawpicture;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.view.View;class Customview1 extends View{          Paint  paint;        public Customview1(Context context) {          super(context);              paint = new Paint();          paint.setColor(Color.BLACK);      paint.setStrokeJoin(Paint.Join.ROUND);          paint.setStrokeCap(Paint.Cap.ROUND);          paint.setStrokeWidth(3);          paint.setTextSize(40);//设置字体大小              }          protected void onDraw(Canvas canvas)        {          //横线            //top                canvas.drawLine(30, 30, 450,30, paint);                  canvas.drawLine( 30, 100, 450,100, paint);               canvas.drawLine( 30, 170, 450,170, paint);              canvas.drawLine( 30, 240, 450,240, paint);              canvas.drawLine( 30, 310, 450,310, paint);              // bottom                          canvas.drawText(" 楚   河 ", 65, 355, paint);//使用画笔paint    canvas.drawText(" 汉  界  ", 320,355 , paint);//使用画笔paint             canvas.drawLine(30, 380, 450,380, paint);        canvas.drawLine( 30, 450, 450,450, paint);             canvas.drawLine( 30, 520, 450,520, paint);             canvas.drawLine( 30, 590, 450,590, paint);             canvas.drawLine( 30, 660, 450,660, paint);            //竖线                        //left               canvas.drawLine(30, 30,30,660, paint);            canvas.drawLine(83, 30, 83,310, paint);            canvas.drawLine(136, 30, 136,310, paint);             canvas.drawLine(189, 30, 189,310, paint);        canvas.drawLine(242, 30, 242,310, paint);        canvas.drawLine(294, 30, 294,310, paint);        canvas.drawLine(347, 30, 347,310, paint);            canvas.drawLine(398, 30, 398,310, paint);             //right                       canvas.drawLine(83, 380, 83,660, paint);            canvas.drawLine(136, 380, 136,660, paint);             canvas.drawLine(189, 380, 189,660, paint);            canvas.drawLine(242, 380, 242,660, paint);        canvas.drawLine(294, 380, 294,660, paint);            canvas.drawLine(347, 380, 347,660, paint);             canvas.drawLine(398, 380, 398,660, paint);             canvas.drawLine(450,30 ,450,660, paint);             //大营            canvas.drawLine(189, 30, 294,170, paint);            canvas.drawLine(294, 30, 189,170, paint);        canvas.drawLine(189,520, 294,660, paint);             canvas.drawLine(294,520, 189,660, paint);                          //topcircle                           canvas.drawCircle(450, 240,20, paint);                canvas.drawCircle(346, 240,20, paint);                canvas.drawCircle(242, 240,20, paint);                            canvas.drawCircle(396, 170,20, paint);                canvas.drawCircle(450, 30,20, paint);                canvas.drawCircle(396, 30,20, paint);                canvas.drawCircle(346, 30,20, paint);                canvas.drawCircle(294, 30,20, paint);                canvas.drawCircle(242, 30,20, paint);                  canvas.drawCircle(189, 30,20, paint);                canvas.drawCircle(135, 30,20, paint);                canvas.drawCircle(83, 30,20, paint);                canvas.drawCircle(30, 30,20 , paint);                canvas.drawCircle(83, 170,20, paint);                           canvas.drawCircle(135, 240,20, paint);                canvas.drawCircle(30, 240,20, paint);                           //bottomcircle                canvas.drawCircle(450, 450,20, paint);                canvas.drawCircle(346, 450,20, paint);                canvas.drawCircle(242, 450,20, paint);                            canvas.drawCircle(396, 520,20, paint);                canvas.drawCircle(450, 660,20, paint);                canvas.drawCircle(396, 660,20, paint);                canvas.drawCircle(346, 660,20, paint);                canvas.drawCircle(294, 660,20, paint);                canvas.drawCircle(242, 660,20, paint);                canvas.drawCircle(189, 660,20, paint);                canvas.drawCircle(135, 660,20, paint);                canvas.drawCircle(83, 660,20, paint);                canvas.drawCircle(30, 660,20, paint);                canvas.drawCircle(83, 520,20, paint);                           canvas.drawCircle(135, 450,20, paint);                canvas.drawCircle(30, 450,20, paint);                paint.setColor(Color.RED);                           paint.setTextSize(20);                           canvas.drawText("兵", 21,458, paint);                canvas.drawText("兵", 127,458, paint);                canvas.drawText("兵", 232,458 , paint);                canvas.drawText("炮", 388,527, paint);                canvas.drawText("车", 440,668 , paint);                canvas.drawText("馬", 388,668 , paint);                canvas.drawText("象", 335,668 , paint);                canvas.drawText("仕", 285,668 , paint);                canvas.drawText("帥", 232,668 , paint);                canvas.drawText("仕", 180,668 , paint);                canvas.drawText("象", 127,668 , paint);                canvas.drawText("馬", 72,668 , paint);                canvas.drawText("车", 21,668 , paint);                canvas.drawText("炮", 72, 527, paint);                canvas.drawText("兵", 335,458 , paint);                canvas.drawText("兵", 440,458, paint);                                          canvas.drawText("卒", 21,245, paint);                canvas.drawText("卒", 127,245, paint);                canvas.drawText("卒", 232,245 , paint);                canvas.drawText("炮", 72, 177, paint);                canvas.drawText("车", 21,35 , paint);                canvas.drawText("馬", 72,35 , paint);                canvas.drawText("象", 127,35 , paint);                canvas.drawText("士", 180,35 , paint);                canvas.drawText("将", 232,35 , paint);                canvas.drawText("士", 285,35 , paint);                canvas.drawText("象", 335,35 , paint);                canvas.drawText("馬", 388,35 , paint);                canvas.drawText("车", 440,35 , paint);                canvas.drawText("炮", 388, 177, paint);                canvas.drawText("卒", 335,247 , paint);                canvas.drawText("卒", 440,247, paint);                                     }              }