<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:tools="http://schemas.android.com/tools"  android:layout_width="fill_parent"  android:layout_height="fill_parent"  android:id="@+id/frameLayout1"  android:orientation="vertical"  >  </FrameLayout>

package com.example.test;  import android.app.Activity; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.RectF; import android.os.Bundle; import android.view.View; import android.widget.FrameLayout;  public class MainActivity extends Activity {    @Override  public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentView(R.layout.main);      //獲取布局文件中添加的幀布局管理器   FrameLayout ll=(FrameLayout)findViewById(R.id.frameLayout1);   //將自定義的MyView視圖添加到幀布局   ll.addView(new MyView(this));  }    public class MyView extends View{     public MyView(Context context) {    super(context);    // TODO Auto-generated constructor stub   }     @Override   protected void onDraw(Canvas canvas) {    Paint paint=new Paint();    paint.setAntiAlias(true);//使用抗鋸齒功能    paint.setColor(Color.GREEN);    //繪制機(jī)器人的頭    RectF rectf_head=new RectF(10,10,100,100);    rectf_head.offset(100, 20);//設(shè)置在X軸上偏移100像素，Y軸上偏移20像素    canvas.drawArc(rectf_head, -10, -160, false, paint);//繪制弧    /*.drawArc參數(shù)1：圓的范圍大小；參數(shù)2：起始角度 ；    參數(shù)3：圓心角角度，360為圓，180為半圓；    參數(shù)4：中心 ；參數(shù)5：畫筆Paint；*/    //繪制眼睛    paint.setColor(Color.WHITE);    canvas.drawCircle(135, 53, 4, paint);//繪制圓    canvas.drawCircle(175, 53, 4, paint);//繪制圓    paint.setColor(Color.GREEN);    //繪制天線    paint.setStrokeWidth(2);//設(shè)置觸筆的寬度    canvas.drawLine(120, 15, 135, 35, paint);//繪制線    canvas.drawLine(190, 15, 175, 35, paint);//繪制線    //繪制身體    canvas.drawRect(110,75,200,150, paint);//繪制矩形    RectF rectf_body=new RectF(110,140,200,160);    canvas.drawRoundRect(rectf_body, 10, 10, paint);//繪制圓角矩形    /*參數(shù)說明    rect：RectF對(duì)象。    rx：x方向上的圓角半徑。    ry：y方向上的圓角半徑。    paint：繪制時(shí)所使用的畫筆。*/        //繪制胳膊    RectF rectf_arm=new RectF(85,75,105,140);    canvas.drawRoundRect(rectf_arm, 10, 10, paint);    rectf_arm.offset(120, 0);//設(shè)置在X軸上偏移120像素    canvas.drawRoundRect(rectf_arm, 10, 10, paint);    //繪制腿    RectF rectf_leg=new RectF(125,150,145,200);    canvas.drawRoundRect(rectf_leg, 10, 10, paint);    rectf_leg.offset(40, 0);//設(shè)置在X軸上偏移40像素    canvas.drawRoundRect(rectf_leg, 10, 10, paint);    super.onDraw(canvas);   }  }   }