android 多级菜单

ListView内嵌GridView

 微信开发接口示例

Android 视频上传源码

android 指南针app源码下载

微信分享流程：1.申请你的AppID，申请地址：https://open.weixin.qq.com2.下载微信终端开发工具包3.搭建开发环境4.实例中需要用到申请到的AppID，等审核通过之后 测试就正常了， 很多人 activity 忘记 implements IWXAPIEventHandler 这是常犯的错误

android 拍照上传

matlab中对红外光谱的预处理代码,源代码 包括 对红外光谱的平滑处理、一阶求导 、二阶求导等。以及 回归分析

android 底部tab签实例源码下载(Fragment实现)

【实例简介】

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.