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Google Io Introduction To Android
This document provides an introduction and overview of the Android mobile operating system. It discusses Android's open source nature, its components including the Linux kernel and Dalvik virtual machine, the developer tools and SDK, and how developers can build applications and integrate with, extend, and replace existing Android components. The document also provides an update on the latest Android news including the announcement and early SDK releases, the Android Developer Challenge program, and upcoming SDK and device releases.
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Google Io Introduction To Android
- 1. An Introduction toAndroid Jason Chen Developer Advocate Google I/O 2008
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- 4. Internet and MobilePhone Users, Worldwide 4,000,000,000 3,000,000,000 2,000,000,000 1,000,000,000 0 2000 2001 2002 2003 2004 2005 2006 2007 Internet users (PC-based) Source: International Telecommunication Union Mobile phone users
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- 8. Handset Manufacturers Software Mobile Operators
- 9. Handset Manufacturers Software Mobile Operators Semiconductor
- 10. Handset Manufacturers Software Mobile Operators Semiconductor Commercialization
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- 12. Linux Kernel Display Camera Driver Bluetooth Flash Memory Binder (IPC) Driver Driver Driver Driver USB Driver Keypad Driver WiFi Driver Audio Power Drivers Management
- 13. Libraries Surface Manager Media SQLite Framework OpenGL | ES FreeType WebKit SGL SSL libc Linux Kernel Display Camera Driver Bluetooth Flash Memory Binder (IPC) Driver Driver Driver Driver USB Driver Keypad Driver WiFi Driver Audio Power Drivers Management
- 14. Libraries Android Runtime Surface Manager Media SQLite Core Libraries Framework OpenGL | ES FreeType WebKit Dalvik Virtual Machine SGL SSL libc Linux Kernel Display Camera Driver Bluetooth Flash Memory Binder (IPC) Driver Driver Driver Driver USB Driver Keypad Driver WiFi Driver Audio Power Drivers Management
- 15. Application Framework Activity Manager Window Content View Notification Manager Providers System Manager Package Manager Telephony Resource Location GTalk Service Manager Manager Manager Libraries Android Runtime Surface Manager Media SQLite Core Libraries Framework OpenGL | ES FreeType WebKit Dalvik Virtual Machine SGL SSL libc Linux Kernel Display Camera Driver Bluetooth Flash Memory Binder (IPC) Driver Driver Driver Driver USB Driver Keypad Driver WiFi Driver Audio Power Drivers Management
- 16. Applications Home Contacts Phone Browser ... Application Framework Activity Manager Window Content View Notification Manager Providers System Manager Package Manager Telephony Resource Location GTalk Service Manager Manager Manager Libraries Android Runtime Surface Manager Media SQLite Core Libraries Framework OpenGL | ES FreeType WebKit Dalvik Virtual Machine SGL SSL libc Linux Kernel Display Camera Driver Bluetooth Flash Memory Binder (IPC) Driver Driver Driver Driver USB Driver Keypad Driver WiFi Driver Audio Power Drivers Management
- 17. Application Building Blocks UI component typically corresponding to Activity one screen. Set and respond to notifications or status IntentReceiver changes. Can wake up your app. Service Faceless task that runs in the background. ContentProvider Enable applications to share data.
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- 19. Emulator • QEMU-based ARM emulator runs same system image as a device • Use same toolchain to work with devices or emulator
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- 21. Debugging Call stack Examine variables Breakpoints, single stepping
- 22. What does openmean? Photo by: http://flickr.com/photos/virtualsugar/316200555/
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- 25. •Software stack open- sourced under Apache 2.0 license Industry •Source available after first handsets ship •Anyone will be able to build a system image
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- 27. Industry Users
- 28. •Users have controlof their experience Industry •They control what gets Users installed •They choose the defaults
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- 30. Developers Industry Users
- 31. Developers •Don’t need permission to ship an application •No hidden or privileged Industry framework APIs Users •Can integrate, extend, and replace existing components
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- 36. Integrate Extend
- 37. Integrate Extend
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- 45. What does thismean for developers?
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- 47. Latest News • 5 Nov 2007: Android announced • 12 Nov 2007: early look of the SDK released • 14 Dec 2007: bug-fix SDK released • 3 Jan 2008: Android Developer Challenge I starts accepting submissions • 13 Feb 2008: m5-rc15 SDK released • 14 Apr 2008: 1788 total submissions for Challenge I • 12 May 2008: Top 50 Application in Challenge I announced
- 48. Android Developer Challenge • Goal: help developers turn great ideas into great code • Challenge I & II each have a $5MM USD purse • Challenge II will begin after devices go on sale
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