编程工具

一款自已写的MP3播放器，通过他你可以学到android 媒体播放、多线程方面的知识(A from already write MP3 player, through him you can learn android media player, multithreading aspects of knowledge)

Android制作水波动画效果的圆形进度条，下面是相关的定义代码： 　　private Paint mPaint; //绘制波形 　　private Paint mCirclePaint; //绘制圆形 　　private Path mPath; //记录波形的路径 　　private int width; //自定义view的宽度 　　private int height; //自定义view的高度 　　private int mCirclePaintRadius; //绘制圆形的半径 　　private int mStepSize; //绘制波形的完整周期的宽度 　　private int mMoveStartX; //绘制波形的初始位置,相当于震动的频率 　　private int mSinMax; //绘制波形的振幅 　　private int count = 3; //需要绘制完整波形的个数,个数越多，波形的周期越小 　　private Canvas mCircleCanvas; 　　private Bitmap mDest; 　　private int mCurrentProgress; //当前的进度 　　private boolean shouldChange; //用于控制正弦线的上升和下降 　　private Paint mTextPaint; 　　super.onDraw(canvas); 　　//线绘制一个实心圆 　　mCircleCanvas.drawCircle(width / 2, height / 2, mCirclePaintRadius, mCirclePaint); 　　//每次绘制记得调用reset()方法，否则当前绘制会和上次的绘制重叠 　　mPath.reset(); 　　//下面的moveTo，lineTo,lineTo,lineTo主要是让当前正弦线的首位相接

【核心代码】package com.gson;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.lang.reflect.Field;import java.lang.reflect.Method;import java.util.Date;import java.util.Properties;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletInputStream;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.log4j.Logger;import com.gson.bean.Articles;import com.gson.bean.InMessage;import com.gson.bean.OutMessage;import com.gson.bean.TextOutMessage;import com.gson.inf.MessageProcessingHandler;import com.gson.util.Tools;import com.gson.util.XStreamFactory;import com.thoughtworks.xstream.XStream;/** * 请求拦截 * * @author GodSon * */public class WeChatFilter implements Filter { private final Logger logger = Logger.getLogger(WeChatFilter.class); private String _token; private String conf = "classPath:wechat.properties"; private String defaultHandler = "com.gson.inf.DefaultMessageProcessingHandlerImpl"; private Properties p; @Override public void destroy() { logger.info("WeChatFilter已经销毁"); } @Override public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException { HttpServletRequest request = (HttpServletRequest) req; HttpServletResponse response = (HttpServletResponse) res; Boolean isGet = request.getMethod().equals("GET"); String path = request.getServletPath(); String pathInfo = path.substring(path.lastIndexOf("/")); if (pathInfo == null) { response.getWriter().write("error"); } else { _token = pathInfo.substring(1); if (isGet) { doGet(request, response); } else { doPost(request, response); } } } private void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { response.setCharacterEncoding("UTF-8"); response.setContentType("text/xml"); OutMessage oms = new OutMessage(); ServletInputStream in = request.getInputStream(); // 转换微信post过来的xml内容 XStream xs = XStreamFactory.init(false); xs.alias("xml", InMessage.class); String xmlMsg = Tools.inputStream2String(in); logger.debug("输入消息:[" xmlMsg "]"); InMessage msg = (InMessage) xs.fromXML(xmlMsg); // 获取自定消息处理器，如果自定义处理器则使用默认处理器。 String handler = p.getProperty("MessageProcessingHandlerImpl"); if (handler == null) handler = defaultHandler; try { // 加载处理器 Class clazz = Class.forName(handler); MessageProcessingHandler processingHandler = (MessageProcessingHandler) clazz.newInstance(); // 取得消息类型 String type = msg.getMsgType(); Method mt = clazz.getMethod(type "TypeMsg", InMessage.class); oms = (OutMessage) mt.invoke(processingHandler, msg); if (oms == null) { oms = new TextOutMessage(); ((TextOutMessage) oms).setContent("系统错误!"); } setMsgInfo(oms,msg); } catch (Exception e) { logger.error(e); oms = new TextOutMessage(); ((TextOutMessage) oms).setContent("系统错误!"); try { setMsgInfo(oms,msg); } catch (Exception e1) { logger.error(e); } } // 把发送发送对象转换为xml输出 xs = XStreamFactory.init(true); xs.alias("xml", oms.getClass()); xs.alias("item", Articles.class); String xml = xs.toXML(oms); logger.debug("输出消息:[" xml "]"); response.getWriter().write(xml); } private void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException { String signature = request.getParameter("signature");// 微信加密签名 String timestamp = request.getParameter("timestamp");// 时间戳 String nonce = request.getParameter("nonce");// 随机数 String echostr = request.getParameter("echostr");// // 验证 if (Tools.checkSignature(_token, signature, timestamp, nonce)) { response.getWriter().write(echostr); } } private void setMsgInfo(OutMessage oms,InMessage msg) throws Exception { // 设置发送信息 Class outMsg = oms.getClass().getSuperclass(); Field CreateTime = outMsg.getDeclaredField("CreateTime"); Field ToUserName = outMsg.getDeclaredField("ToUserName"); Field FromUserName = outMsg.getDeclaredField("FromUserName"); ToUserName.setAccessible(true); CreateTime.setAccessible(true); FromUserName.setAccessible(true); CreateTime.set(oms, new Date().getTime()); ToUserName.set(oms, msg.getFromUserName()); FromUserName.set(oms, msg.getToUserName()); } /** * 启动的时候加载wechat.properties配置 可以在过滤器配置wechat.properties路径 */ @Override public void init(FilterConfig config) throws ServletException { String cf = config.getInitParameter("conf"); if (cf != null) { conf = cf; } String classPath = this.getClass().getResource("/").getPath().replaceAll("%20", " "); conf = conf.replace("classPath:", classPath); p = new Properties(); File pfile = new File(conf); if (pfile.exists()) { try { p.load(new FileInputStream(pfile)); } catch (FileNotFoundException e) { logger.error("未找到wechat.properties", e); } catch (IOException e) { logger.error("wechat.properties读取异常", e); } } logger.info("WeChatFilter已经启动！"); }}

该程序功能：实现模仿优酷转动菜单。系统开发环境： win7 32 位 + eclipse 4.2 + ADT 22 + JDK 1.7。将项目之间导入eclipse中，编译运行即可生成apk，apk运行的系统最低版本要去：Android 2.3，将编译生成的apk安装到您安您的设备即可。

android WIN8系统 磁贴点击下沉倾斜效果源码下载

Android Exception Test Source Code for Java Script.

【实例简介】本APP主要实现联系人信息的本地存取，同时兼具打电话和发短信的功能。 对于想学习Android开发的初学者非常有参考价值！

一个QPSK的仿真程序,使用的是COSTAS环来恢复载波,给予SIMULINK(A QPSK emulator that uses the COSTAS loop to recover the carrier and give it to the SIMULINK)

webview 安卓demo示例  可以上传文件的webview  eclipse的工程文件