AndroidTheme

【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.

采用JSON格式返回数据给资讯客户端

android 录制视频实例 VideoRecordDemo

java程序中链接数据库，对数据库中的用户表进行增加，删除，修改，查询的操作，这个小程序主要是给初学者一个参考，希望有所帮助。这个程序是我学习的时候编写的，在Eclipse中就可以打开，数据表就一张，可以自己动手建一个用户表。

HTTP OPTIONS method Source Code for Andriod.

(1) 仓库管理员统计仓库中设备的库存量，找出库存量不足的设备，填写购买申请表，领导对此申请表进行审核，审核通过后，产生购买报表交给购买员。(3) 仓库管理员对购买的设备进行入库登记，出库登记。(5) 设备维修完后，交还原实验室，由实验室管理员进行维修登记。     

这是一个我自己第一次写的小游戏 主要体现了java面向对象的概念 层次分明 有利于初学者学习参考 

android界面上移动图片并拖拽

java实现的android版飞机游戏，主要有surfaceView、mediaPlayer、MVC等的运用(java implementation plane game android version, mainly surfaceView, mediaPlayer, MVC, etc. use)