一个SQLITE的例子，注册登陆 增加删改

一个简单的安卓app应用程序，类似于滴答拼车，但是拼游的，大家可以通过此软件找到一起出游的小伙伴(A simple Android app applications, similar to the ticking carpool, but to fight tour, we can travel together by this software to find a small partner)

谷_歌 Android SDK开发范例大全(完整版)共4个分卷目录第1章 了解.深入.动手做.1.1 红透半边天的Android1.2 本书目的及涵盖范例范围1.3 如何阅读本书1.4 使用本书范例1.5 参考网站第2章 Android初体验2.1 安装AndroidSDK与ADTplug-in2.2 建立第一个Android项目(HelloAndroid！)2.3 Android应用程序架构——从此开始2.4 可视化的界面开发工具2.5 部署应用程序到Android手机第3章 用户人机界面3.1 更改与显示文字标签——TextView标签的使用3.2 更改手机窗口画面底色——drawable定义颜色常数的方法3.3 更改TextView文字颜色——引用Drawable颜色常数及背景色3.4 置换TextView文字——CharSequence数据类型与ResourceID应用3.5 取得手机屏幕大小——DisplayMetrics取得画面宽高的方法3.6 样式化的定型对象——Style样式的定义3.7 简易的按钮事件——Button事件处理3.8 手机页面的转换——setContentView的应用3.9 调用另一个Activity——Intent对象的使用3.10 不同Activity之间的数据传递——Bundle对象的实现3.11 返回数据到前一个Activity——startActivityForResult方法3.12 具有交互功能的对话框——AlertDialog窗口3.13 置换文字颜色的机关——Button与TextView的交互3.14 控制不同的文字字体——Typeface对象使用3.15 如iPhone拖动相片特效——Gallery画廊3.16 自制计算器——多按钮的整合应用3.17

应用背景关键技术DEMO里面有摄像头预览、截图、向左转、向右转等功能

悬浮窗效果，无论应用处于前台还是后台，都会显示。(Suspension window effect, whether the application is in the foreground or background, will be displayed.)

图书管理，

Android三种方法实现TextView文字滚动效果，很多人叫做跑马灯，这个不是图片滚动，是纯文字版的，我这android环境Down掉了，死活调试不起来，没截图了，需要的自行下载本源码包，代码中有中文注释，从代码看，除了实现文字滚动，并没有其它多余的功能，只是一个简单的Android文字控制例子。

System Clock Source Code for Andriod.

安卓端与arduino硬件通信，可以发送数据到串口，内嵌了RGB小灯控制，如果不需要可以删除

有空的时候，自己封装的很好用，不要忘了加权限，不然会闪退

核心代码：package com.Test;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.util.Log;import android.app.Activity;import android.view.Menu;import android.widget.Button;import android.view.View;import android.view.View.OnClickListener;import java.io.BufferedInputStream;import java.io.InputStream;import java.io.OutputStream;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.io.InputStreamReader;import java.io.BufferedReader;import java.io.PrintWriter;import java.io.Reader;import java.net.Socket;import java.net.ServerSocket;import java.net.UnknownHostException;import android.view.TextureView;import android.widget.EditText;import java.lang.String;import java.lang.Thread;public class MainActivity extends Activity implements OnClickListener{ private Button m_btn; private Button m_sendbtn; private ServerSocket mySerSocket; private Socket clientSocket; private EditText m_edit; private String line; boolean conn = true; private Socket accSocket; private static final String Host = "10.0.2.2"; private static final int Port = 12000; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); m_btn = (Button)findViewById(R.id.button1); m_sendbtn = (Button)findViewById(R.id.button2); m_edit = (EditText)findViewById(R.id.editText1); //m_btn.setOnClickListener(this); m_btn.setOnClickListener(new ReceiverListener()); m_sendbtn.setOnClickListener(this); //Socket clientSocket = new Socket(Host, Port); } class ReceiverListener implements OnClickListener { private ReceiveThread mReceiveThread = null; private boolean stop = true; private Handler mHandler = null; public void onClick(View v) { try { if(clientSocket == null) { clientSocket = new Socket(Host, Port); } // InputStream myInputStream = clientSocket.getInputStream();// // //BufferedReader in = new BufferedReader(new InputStreamReader(myInputStream));//// byte [] buffer = new byte[myInputStream.available()]; //int temp = 0; //String strMsg = in.readLine(); // myInputStream.read(buffer);// // // String strMsg = new String(buffer);// // m_edit.setText(strMsg);// while ((temp = myInputStream.read(buffer)) != -1)// {// m_edit.setText(new String(buffer, 0, temp));//// } mReceiveThread = new ReceiveThread(clientSocket); stop = false; mReceiveThread.start(); } catch (IOException e) { e.printStackTrace(); } //消息处理 mHandler = new Handler() { public void handleMessage(Message msg) { m_edit.setText((msg.obj).toString()); } }; } private class ReceiveThread extends Thread { private InputStream inStream = null; private byte[] buf; private String str = null; ReceiveThread(Socket s) { try { this.inStream = s.getInputStream(); } catch(IOException e) { e.printStackTrace(); } } public void run() { while(!stop) { this.buf = new byte[512]; try { this.inStream.read(this.buf); } catch(IOException e) { e.printStackTrace(); } try { this.str = new String(this.buf, "GB2312").trim(); } catch(UnsupportedEncodingException e) { e.printStackTrace(); } Message msg = new Message(); msg.obj = this.str; mHandler.sendMessage(msg); } } } } public void onClick(View v) {// if (v.getId() == R.id.button1)// {// new Thread()// {// public void run()// {// try // {// if(clientSocket == null)// {// clientSocket = new Socket(Host, Port);// } // InputStream myInputStream = clientSocket.getInputStream();// // BufferedReader in = new BufferedReader(new InputStreamReader(myInputStream));//// byte [] buffer = new byte[1024 * 4];//// int temp = 0;// // String strMsg = in.readLine();// // //myInputStream.read(buffer);// // //String strMsg = new String(buffer);// // m_edit.setText(strMsg);////// while ((temp = myInputStream.read(buffer)) != -1)//// {//// m_edit.setText(new String(buffer, 0, temp));//////// }// // }// catch (IOException e)// {// e.printStackTrace();// }// }// }.start();// // } if(v.getId() == R.id.button2) { new Thread() { public void run() { try { if(clientSocket == null) { clientSocket = new Socket(Host, Port); } //inputStream clientInputStream = clientSocket. String msg = "RESET-SHOW"; //InputStream clientInputStream = clientSocket.getInputStream(); //BufferedReader br = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); //BufferedReader br = new BufferedReader(); //line = br.readLine(); OutputStream clientOutputStream = clientSocket.getOutputStream(); byte buffer[]=msg.getBytes(); clientOutputStream.write(buffer); clientOutputStream.flush(); //int temp = 0; // PrintWriter out = new PrintWriter(clientOutputStream);// // out.println("Serer Message: " msg); } catch(IOException e) { e.printStackTrace(); } } }.start(); } }private Reader InputStreamReader() { // TODO Auto-generated method stub return null; }// private Handler handler = new Handler()// {// public void handleMessage(Message msg)// {// super.handleMessage(msg);// //处理UI// m_edit.setText("Finish");// Log.i("PDA", "Finish");// // }// }; @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; }}