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Android ppt
This document discusses Android, an open source software stack for mobile devices. It is a complete system comprising an operating system, middleware, and key applications. Android is developed as part of the Open Handset Alliance and is powered by the Linux kernel. It uses Java for application development and includes APIs for graphics, data storage, media, Bluetooth, WiFi and more. Developers write Android apps in Java, which are then compiled to Dalvik bytecode and run on Android devices.
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Android ppt
- 2. Open software platform for mobile development A complete stack – OS, Middleware, Applications An Open Handset Alliance (OHA) project Powered by Linux operating system Fast application development in Java Open source under the Apache 2 license
- 3. What is theOpen Handset Alliance (OHA)? → It's a consortium of several companies
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- 6. Versions Name Version Cupcake 1.5 Donut 1.6 Eclair 2.1 Froyo 2.2 Gingerbread 2.3 Honeycomb 3.0 Icecream 2.4
- 7. • Application Framework •Dalvik virtual machine • Integrated browser based on the open source WebKit engine • 2D and 3D graphics APIs with HW • Sqlite (Structured data storage) • Media Support (common audio,video and image format) • Bluetooth, EDGE, 3G, and WiFi • Camera, GPS, compass, and accelerometer • Rich Development Environment
- 9. Write app inJava Compiled in Java Transformed to Dalvik bytecode Loaded into Dalvik VM Linux OS
- 10. Activity IntentReceiver Service ContentProvider
- 11. Android Emulator -A virtual mobile device that runs on our computer -use to design, debug, and test our applications in an actual Android run-time environment Android Development Tools Plugin -for the Eclipse IDE – adds powerful extensions to the Eclipse integrated environment Dalvik Debug Monitor Service (DDMS) -Integrated with Dalvik-this tool let us manage processes on an emulator and assists in debugging
- 12. 1. A foreground process 2. A visible process 3. A service process 4. A background process 5. An empty process 3/17/2013
- 14. Download and Install the Android SDK and Test the Emulator. Installing JDK and JRE(1.5 or above) Install Eclipse. Install ADT plugin for Eclipse Creating HelloWorld Application
- 15. New > Project… Select Android project in wizard menu
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- 17. >>Running Your FirstApplication Output in the emulator
- 18. Resource files are bundled to .apk file archive Bundled by aapt tool One .apk file archive is a Single application
- 19. Android uses proven technology like Java, XML andLinux There is an initial learning effort Android doesn‘t have many of the limitations of current mobile platforms It offers a rich API for application development Android is still in beta Android development is fun
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