android 简化数据库操作 例子源码

android SDCard存储 示例源码

android 百度地图定位 实例源码

android图片动态效果  可 start 和 stop

这例子子就是安卓医院预约系统 加 服务端，可以用来大家学习安卓的开发的一个方向本项目是一个简单的医院挂号项目源码，实现了病人在安卓手机上登录、注册、挂号、查看医生信息等功能。实现原理是app端与web服务端做交互，然后web服务端再去调用mysql数据库里面的内容，维护mysql数据内容的时候直接在web服务端进行维护本项目暂时没有数据库，只有j2ee服务端源码和安卓客户端源码，所以只能给大家截两个登录注册的图，如果想看其他界面效果的话可以自己根据服务端srccomhospital下的model层里面的字段建表，我看了一下工程量也不大，就四个表，几个字段。有mysql或者mssql基础的人真想弄的话半小时内肯定可以把表建起来。时间有限我就不给大家弄数据库这一块了，感兴趣的朋友可以自己下载看一下。

android 从相册选择一张或者多张图片例子源码下载

BLE4.0聊天实例

android listview 下拉刷新 实例源码下载

可将html中的 样式信息 展现在 textview中

android MTP文件浏览 例子源码下载

Rules::The AsyncTask instance must be created in UI thread. .execute must be invoked on the UI thread.Never call  objMyTask.onPreExecute(), objMyTask.doInBackground(), objMyTask.onProgressUpdate(),  objMyTask.onPostExecute manually.The AsyncTask can be executed only once (an exception will be thrown if a second execution is attempted.)AsyncTask have Four Main Method... onPreExecute()  doInBackground() onProgressUpdate() onPostExecute()  onPreExecute-This method is called first when you start AsyncTask using objAsync.execute().And mostly this method is use for initializing dialog(ProgressDialog,CustomDialog) and showing. doInBackground-The main purpose of AsyncTask is accomplished by this method.Any non-UI thread process is running in this method.Such as Rss Feed Reader,Image and video Uploading and Downloading.You cant handle your View in this method.Because this method is non-UI thread.While any background process is running if you want to handle UI therea are  onProgressUpdate method. after completion of process this method send result to OnPostExecute. onProgressUpdate-While backgrounding task is running ,you can handle your UI using this method .Such as status of downloading or uploading task.and this method is called from  doInBackground.Using publishProgress() you can call onProgressUpdate method to update UI while process is running. onPostExecute -This method is called after the background computation finishes.The result of background process in passed in this method as parameters.And now you can dismiss progress dialog ,to indicate that background task is completed. You can cancel AsyncTask using objAsyncTask.cancel().then you just check in doInBackground, if (isCancelled()) { break; } else {        //continue... } See this Image For more Clear.