目 录
1 绪论.........................................................................................................................................1
1.1 课题背景.......................................................................................................................1
1.2 课题目的.......................................................................................................................1
2 系统分析.................................................................................................................................2
2.1 系统需求分析...............................................................................................................2
2.1.1 系统功能需求.....................................................................................................2
2.1.2 系统界面需求.....................................................................................................7
2.1.3 系统性能需求.....................................................................................................8
2.2 系统结构图和流程图...................................................................................................8
3 Android 项目介绍 ...................................................................................................................9
3.1 什么是 Android ? .........................................................................................................9
3.1.1 Android 简介 .......................................................................................................9
3.1.2 Android Features 特性........................................................................................9
3.1.3 Android 基本框架（Android Architecture）..................................................10
3.1.4 Android 系统的四大组件 ................................................................................12
3.2 Android 开发平台搭建 ...............................................................................................13
3.3 Android 商品条码扫描器的工程 ...............................................................................14
3.3.1 Android 项目 .....................................................................................................14
3.3.2 Android 工程程序结构 .....................................................................................14
3.3.3 AndroidManifest.xml 文件................................................................................15
4 商品条码扫描器功能详细设计与实现...............................................................................16
4.1 商品条码识别显示.....................................................................................................16
4.1.1 CaptureActivity 布局.........................................................................................16
4.1.2 CaptureActivity 对摄像头控制.........................................................................17
4.1.3 CaptureActivityHandler.....................................................................................17
4.1.4 DecodeHandler ..................................................................................................18
4.1.5 获取解码结果信息并显示...............................................................................18
4.2 商品信息主界面.........................................................................................................18
4.2.1 InforActivity 的布局 .........................................................................................19
4.2.2 商品信息显示...................................................................................................19
4.2.3 主界面按钮设置...............................................................................................20
4.2.4 地理位置的显示...............................................................................................21
