package test;
import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.View;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Path;
import android.graphics.Shader;
import android.graphics.LinearGradient;
//???????��????Android.view.View?? MyView????�� MyView??onDraw??????????
//??????????��???????????onDraw????????Paint????????��?????Canvas???
//?? paint.setColor() ????????????? paint.setStyle()??????????????????
//?????????????????????????��??????????Canvas��???????????Paint??
//??????????????????��???????????
public class drawTest extends Activity {
int w = 300;
int h = 500;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/*????ContentView???????MyVieW*/
MyView myView=new MyView(this);
setContentView(myView);
// DisplayMetrics dm = new DisplayMetrics();
// getWindowManager().getDefaultDisplay().getMetrics(dm);
// w = dm.widthPixels;
// h = dm.heightPixels;
}
/* ???????View ??MyView*/
private class MyView extends View {
public MyView(Context context){
super(context) ;
}
/*??��onDraw????*/
@Override
protected void onDraw(Canvas canvas)
{
super.onDraw(canvas);
/*???????????*/
canvas.drawColor(Color.WHITE);
Paint paint=new Paint();
/*????*/
paint.setAntiAlias(true);
/*????paint?????*/
paint.setColor(Color.RED);
/*????paint?? style ?STROKE??????*/
paint.setStyle(Paint.Style.STROKE);
/*????paint???????*/
paint.setStrokeWidth(3);
/*????????????*/
canvas.drawCircle(40, 40, 30, paint);
/*???????????????*/
canvas.drawRect(10, 90, 70, 150, paint);
/*??????????????*/
canvas.drawRect(10, 170, 70,200, paint);
/*??????????????*/
canvas.drawOval(new RectF(10,220,70,250), paint);
/*???????????????*/
Path path=new Path();
path.moveTo(10, 330);
path.lineTo(70,330);
path.lineTo(40,270);
path.close();
canvas.drawPath(path, paint);
/*?????????????*/
Path path1=new Path();
path1.moveTo(10, 410);
path1.lineTo(70,410);
path1.lineTo(55,350);
path1.lineTo(25, 350);
path1.close();
canvas.drawPath(path1, paint);
/*????paint?????*/
paint.setColor(Color.BLUE);
/*????paint ??style? FILL?????*/
paint.setStyle(Paint.Style.FILL);
/*?????????*/
canvas.drawCircle(120,40,30, paint);
/*??????????????*/
canvas.drawRect(90, 90, 150, 150, paint);
/*?????????????*/
canvas.drawRect(90, 170, 150,200, paint);
/*???????????*/
RectF re2=new RectF(90,220,150,250);
canvas.drawOval(re2, paint);
/*??????????????*/
Path path2=new Path();
path2.moveTo(90, 330);
path2.lineTo(150,330);
path2.lineTo(120,270);
path2.close();
canvas.drawPath(path2, paint);
/*????????????*/
Path path3=new Path();
path3.moveTo(90, 410);
path3.lineTo(150,410);
path3.lineTo(135,350);
path3.lineTo(105, 350);
path3.close();
canvas.drawPath(path3, paint);
/*???y????*/
Shader mShader=new LinearGradient(0,0,100,100,
new int[]{Color.RED,Color.GREEN,Color.BLUE,Color.YELLOW},
null,Shader.TileMode.REPEAT);
//Shader.TileMode??????
//REPEAT:???????????????
//CLAMP:?????????????��???????????????????
//MIRROR:??REPEAT???????????????????????????
paint.setShader(mShader);//??Shader?��??�G??????????
/*???????????*/
canvas.drawCircle(200,40,30, paint);
/*????????????????*/
canvas.drawRect(170, 90, 230, 150, paint);
/*????????????????*/
canvas.drawRect(170, 170, 230,200, paint);
/*?????????????*/
RectF re3=new RectF(170,220,230,250);
canvas.drawOval(re3, paint);
/*??????????123???*/
Path path4=new Path();
path4.moveTo(170,330);
path4.lineTo(230,330);
path4.lineTo(200,270);
path4.close();
canvas.drawPath(path4, paint);
/*??????????????*/
Path path5=new Path();
path5.moveTo(170, 410);
path5.lineTo(230,410);
path5.lineTo(215,350);
path5.lineTo(185, 350);
path5.close();
canvas.drawPath(path5, paint);
/*��??*/
paint.setTextSize(24);
canvas.drawText("???", 240, 50, paint);
canvas.drawText("??????", 240, 120, paint);
canvas.drawText("??????", 240, 190, paint);
canvas.drawText("?????", 240, 250, paint);
canvas.drawText("??????", 240, 320, paint);
canvas.drawText("????", 240, 390, paint);
//?????
Paint paint2 = new Paint();
/*????*/
paint2.setAntiAlias(true);
/*????paint?????*/
paint2.setColor(Color.BLACK);
/*????paint?? style ?STROKE??????*/
paint2.setStyle(Paint.Style.STROKE);
/*????paint???????*/
paint2.setStrokeWidth(2);
// Path path6=new Path();
// path6.moveTo(8, h-6);
// path6.lineTo(8, h-30);
// path6.lineTo(44, h-30);
// path6.lineTo(44, h-6);
// path6.close();
// canvas.drawPath(path6, paint2);
canvas.drawRect(8,h-26,38,h-6,paint2);
paint2.setStyle(Paint.Style.FILL);
// Path path7=new Path();
// path7.moveTo(44, h-25);
// path7.lineTo(52, h-25);
// path7.lineTo(52, h-11);
// path7.lineTo(44, h-11);
// path7.close();
canvas.drawRect(38,h-22,44,h-10,paint2);
// canvas.drawPath(path7, paint2);
// Path path8=new Path();
// path8.moveTo(11, h-9);
// path8.lineTo(11, h-27);
// path8.lineTo(41, h-27);
// path8.lineTo(41, h-9);
// path8.close();
// canvas.drawPath(path8, paint2);
canvas.drawRect(11,h-23,35,h-9,paint2);
}
}
}