多个按钮左右相互挤压效果

基于安卓的校园小商品交易市场，具有游客登录，用户登录，管理员登录。游客只可查看商品，用户可购买商品和出售商品。管理员可以对商品交易和订单进行管理，以及管理用户。

android应用程序实例Android创建各种Dialog和监听事件的演示源码(android application source code examples demonstrate a variety of Android Dialog to create and monitor events)

基于全志A10 android4.0平台，开发的GPIO控制程序，通过UI界面选择不同状态下GPIO口输出不同的电平状态，来实现由高低电平来控制外部设备；本例程主要实现5个IO口控制Audio和vedio的不同格式输出(Based on Allwinner A10 android4.0 platform, the development of the GPIO control procedures, through the UI interface to select a different state, a different GPIO port output level state, to achieve the high and low to control external devices This course mainly to achieve five IO port control Audio and vedio output different formats)

【核心代码】 public interface CameraSource {  static final String LOG_TAG = "camera";  /**  * Open the camera source for subsequent use via calls to capture().  *   * @return true if the camera source was successfully opened.  */  boolean open();  /**  * Close the camera source. Calling close on a closed CameraSource is  * permitted but has no effect. The camera source may be reopened after  * being closed.  */  void close();  /**  * The width of the captured image.  *   * @return the width of the capture in pixels  */  int getWidth();  /**  * The height of the captured image.  *   * @return the height of the capture in pixels  */  int getHeight();  /**  * Attempts to render the current camera view onto the supplied canvas.  * The capture will be rendered into the rectangle (0,0,width,height).  * Outstanding transformations on the canvas may alter this.  *   * @param canvas the canvas to which the captured pixel data will be written  * @return true iff a frame was successfully written to the canvas  */  boolean capture(Canvas canvas);  boolean saveImage(String savePath, String fileName); }

2016年是移动直播爆发年，不到半年的时间内无数移动直播App掀起了全民直播的热潮。然而个人觉得直播的门槛相对较高,从推流端到服务端器到播放端,无不需要专业的技术来支撑,仅仅推流端就有不少需要学习的知识.目前大部分直播采用的都是RTMP协议,我这里发了一个别人写的推流库,帮助大家更好的理解直播推流的过程,主要包括:音视频采集, 音视频编码, 数据打包, RTMP协议等相关的知识等.项目结构分的很清楚,各个模块也用协议进行了分离,方便大家学习不同的模块。

代码实现android拍照功能，sdk于android4.1（api 16）开发的，实现拍照并保存于SD卡下功能

android ExpandableTextView 例子源码下载

android 音量控制 实例源码，效果不错

强烈推荐好用的卷积码编码,维特比译码和软判决,本代码简易可行,(Good convolutional code coding, Viterbi decoding and soft decision are highly recommended. This code is simple and feasible.)