Androit 电池信息

焦点图的切换效果有了

Android模仿QQ登录界面的layout，效果很逼真，对layout运用很灵活，适合Android UI 设计感兴趣的朋友(Android imitate QQ login screen layout of, the effect is very clear, very flexible use of layout, suitable for Android UI design interest friends)

这是一个简单的手机游戏《谁是卧底》源代码，里面的布局和参数都可以参考

android 拨打电话例子源码下载(拨号器)

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.

一个基于android的 BMI 计算小系统，涉及到多个控件和activity间传值(a bases android app，include some widgets )

Take photo in android delphi app

android转盘抽奖实例

android 从外部程序获得ContentProvider提供的数据并进行操作 示例源码

android开发相关文档,android学习基础文档、界面切换效果总结(the book of android)