android 通过wifi传输文件的例子源码,参考茄子快传的原理

3listview example 

电子杂志（带翻页效果）源码，效果非常逼真，想做电子书的朋友可以研究下

Android 实现图像的灰度化和二值化

【实例简介】    管理员登陆账号：admin 密码：123456 普通用户账号：demo  密码：demo

android 自定义时间段选择dialog 实例源码下载

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.

已屏蔽返回键 home键

TouchEventDemo是一个说明如何处理触摸事件的示例TouchEventDemo用户界面浅蓝色区域是可以接受触摸事件的区域，用户可以在Android模拟器中使用鼠标点击屏幕，用以模拟触摸手机屏幕下方黑色区域是显示区域，用来显示触摸事件的类型、相对坐标、绝对坐标、触点压力、触点尺寸和历史数据量等信息

android BaseActivity 示例代码分享

【实例简介】