《android框架与应用开发介绍.ppt

* Android的发展 初探Android框架 如何开发一个android应用 如何开发一个widget 目录 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 工欲善其事，必先利其器 Android SDK 必威体育精装版版本：android-sdk-1.5_r2 AVD: android virtual device ADB: Android Debug Bridge Hierarchyviewer: UI解析 …… IDE: eclipse + ADT ADT: Android Development Tools * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Hello World * Android带UI应用的入口，类似main UI界面设计的xml文件，android中采用一个xml描述UI Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Android project * Activity class 自动生成的资源定义类 存放应用使用的资源 UI布局描述文件 应用使用的静态字符串 应用程序描述文件 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 基本UI组件 * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. * 实例：MyPhonebook Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. * 实例：短信未知号码提示 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. * Android的发展 初探Android框架 如何开发一个android应用 如何开发一个widget 目录 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. App widget组成 * AppWidget Provider Info AppWidget Provider AppWidget View App widget App Widget描述文件。定义widget大小、更新频率、接收的intent等 App widget主体，java类，负责widget初始化，各种消息的响应等 App widget界面描述文件。描述widget主界面的布局、包含的控件、显示效果等 Configure Activity 用于配置app widget的activity Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. App widget的UI设计 * 纵向屏幕 横向屏幕 Cells 4 x 1 3 x 3 2 x 2 Pixels 320 x 100 240 x 300 160 x 200 Cells 4 x 1 3 x 3 2 x 2 Pixels 424 x 74 318 x 222 212 x 148 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 几个widget *