目 录
1 绪论 .............................................................................................................................................4
1.1 课题背景 .................................................................................................................................4
1.2 研究现状 .................................................................................................................................4
1.3 目的和意义 .............................................................................................................................4
1.4 设计原则 ..................................................................................................................................5
2 开发工具及技术 .........................................................................................................................6
2.1 Android 技术 ..........................................................................................................................6
2.1.1 Android 技术简介 ..........................................................................................................6
2.1.2 Android 技术的不足 ......................................................................................................6
2.1.3 Android 体系结构概述 ..................................................................................................7
2.2 Java 技术介绍 ........................................................................................................................8
2.3 B/S 结构 ..................................................................................................................................8
3 系统分析 ...................................................................................................................................10
3.1 可行性分析 ...........................................................................................................................10
3.1.1 技术可行性 ...................................................................................................................10
3.1.2 经济可行性 ...................................................................................................................10
3.1.3 操作可行性 ...................................................................................................................10
3.1.4 法律可行性 ...................................................................................................................10
3.2 流程分析 ................................................................................................................................11
3.3 系统设计规则与运行环境 ....................................................................................................11
3.4 非功能需求分析 ...................................................................................................................11
3.5 系统用例图 ...........................................................................................................................12
3.6 系统活动图分析 ....................................................................................................................12
4 系统设计 ...................................................................................................................................13
4.1 系统结构设计 ........................................................................................................................13
4.2 系统功能模块设计 ................................................................................................................13
4.3 系统界面设计 ........................................................................................................................13
4.3.1 新建下载界面 ................................................................................................................13
4.3.2 开始下载界面 ................................................................................................................14
4.3.3 暂停下载界面 ................................................................................................................14
5 测试 .........................................................................................................................................16
5.1 系统测试意义 .........................................................................................................................16
5.2 测试目的 ................................................................................................................................17
