android 用paint，canvas 绘图

  （1）主要用了paint ，canvas 两个类中的方法

（2）主要用了画线和画圆的方法。

（3）drawline（起始点轴坐标，起始点y轴坐标，终点轴坐标，终点y轴坐标）

（4）drawcircle（圆心x轴坐标，圆心y轴坐标，半径，画布）

效果图：

直接上代码了：

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);            }     }