android 视频对讲 例子源码下载

高仿qq源码，含 服务器端源码以及数据库sql

【实例简介】

（1）把phonegap的jar包和xml文件放到工程下的正确目录； （2）修改src下的android默认类 DroidGap （3）在aseets下面建立工程的根目录www，并在其中放入js、html、image、css等普通的web文件； （4）只需要在index页面加入js包和css文件，其他页面只需要组织成一个简单的jQuery Mobile页面。 （5）调用一些特殊的api时，需要注意申请android许可！

p2p文件传输

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.

android连接mysql数据库例子

为图片添加水印 【核心代码】 /*** 添加水印* @param imagePath      图片绝对路径* @param watermarkPath  水印图片绝对路径* @param position  水印图片位置* @return 生成水印图片的绝对路径*/public static String addWatermark(String imagePath, String watermarkPath, String position) {logger.info("为图片({})在位置{}添加水印({})", imagePath, position, watermarkPath);if (StringUtils.isNotBlank(imagePath) && StringUtils.isNotBlank(watermarkPath)) {File image = new File(imagePath);File watermark = new File(watermarkPath);Position pos = getPostion(position);if (image.isFile() && image.exists() && watermark.isFile()) {try {BufferedImage bi = ImageIO.read(image);Builder builder = Thumbnails.of(imagePath);BufferedImage watermarkImg = ImageIO.read(watermark);File newWatermark = null;// 原图的宽或高是水印图片宽或高的2倍及以上,则直接打上水印原图;否则缩略水印图片,以原图宽或高的二分之一if (bi.getWidth() / watermarkImg.getWidth()

android ebook 源码

工信部通信计量中心“国家队”专家权威编撰，仪表与测试人员人手一本的宝典必读图书.内容新。本著作面向现代无线通信应用，涵盖2G、3G、LTE相关内容。是一本在较长时间内不过时的著作，这是相对同类书籍的比较优势。适用性广。本书所介绍仪表新旧结合、以普遍使用的产品为主，兼顾国际著名厂商产品和国产仪表。实践性强。本著作将仪表和测量应用、测量系统搭建可信性强。作者团队来自工业和信息化部通信计量中心。

android小说阅读器 实例源码下载