Tehran's 1st Android bootcamp - Part1
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The document is an overview of Android, an open-source mobile operating system developed by Google, detailing its history, features, and development tools for both users and developers. It also outlines the various versions of Android released over the years, including major features introduced in each version. Additionally, it covers key components of Android development, such as project setup, manifest files, and the Android emulator.
Tehran's 1st Android bootcamp - Part1
- 1. You’re Welcome to Tehran 1st Android Bootcamp
- 3. Android Means an·droid /ˈanˌdroid/ Noun (in science fiction) A robot with a human appearance.
- 4. Android… • Is an open source platform designed for mobiles devices under licenses (Apache/MIT) • Is based on the open Linux kernel – Portability: easy to compile on various hardware – Security: a highly secure system – Features: support for memory management, power management, and networking • Championed by Google • Separates the hardware from the software • Core is designed to be portable to run on all sorts of physical devices and screen size
- 5. Android… • For Developers: – Provides all tools for developing mobile apps quickly and easily – Don’t even need a physical phone to start developing • For Users: – Can customize their phone experience • For Manufacturers: – Complete solution for running their devices – Other than some hardware-specific drivers, provides everything else to make their devices work.
- 8. History • In 2005, Google buys Android, Inc. • Everything goes quiet for a while! • In 2007, the Open Handset Alliance is announced. Android is officially open sourced. • In 2008, the Android SDK 1.0 is released. The G1 phone, manufactured by HTC and sold by the wireless carrier T-Mobile USA, follows shortly afterward. • 2009 sees a proliferation of Android-based devices. New versions of the operating system are released: Cupcake (1.5), Donut (1.6), and Eclair (2.0 and 2.1). More than 20 devices run Android. • • In 2010, Android is second only to Blackberry as the best-selling smart phone platform. Froyo (Android 2.2) is released and so are more than 60 devices that run it.
- 11. Android Versions Two Pre-commercial internal release versions (2007–2008) • Android alpha: – Released before 5 Nov 2007 – Code-named “Astro Boy”, “Bender”, “R2-D2” • Android beta: – Released on 5 Nov 2007 ~ 28 Sep 2008 – Code-named “m3-rc22a”, “m3-rc37a”, …
- 12. Android Versions Cupcake 1.5 2009/04/30 • HTC Dream, the first Android device • Features: android market, web browser, camera support, gmail, Google contact, calendar, maps, sync, search, talk, media player, notification, voice dialer, you tube, …
- 13. Android Versions Donut 1.6 2009/09/15 • based on Linux kernel 2.6.29 • Features: Voice and text entry search, Multilingual speech synthesis, faster camera access, technology support for CDMA/EVDO, 802.1x, VPNs, …
- 14. Android Versions Éclair 2.0, 2.1 2009/10/29 • based on Linux kernel 2.6.29 • Features: Bluetooth 2.1 support, Camera flash support, digital zoom, scene mode, white balance, color effect and macro focus, live wallpapers, …
- 15. Android Versions Froyo 2.2(frozen yogurt) 2010/05/20 • based on Linux kernel 2.6.32 • Speed, memory, and performance optimizations, Android Cloud to Device Messaging (C2DM), USB tethering and Wi-Fi hotspot, file upload fields in the Browser, Adobe Flash support, …
- 16. Android Versions Gingerbread 2.3 2010/12/06 • based on Linux kernel 2.6.35 • Features: Switched from YAFFS to ext4, enhancements for game developers, Support for extra-large screen sizes and resolutions, …
- 17. Android Versions Honeycomb 3.0 2011/02/22 • the first tablet-only Android update • Linux kernel 2.6.36 • First Tablet, Motorola Xoom • Features: Optimized tablet support, System Bar (notifications, status, and soft navigation buttons), Action Bar, Simplified multitasking, ...
- 18. Android Versions IceCream Sandwich 4.0 2011/10/19 • based on Linux kernel 3.0.1 • compatible with any Android 2.3.x device • Features: Multiple user accounts , Face Unlock, Google Chrome browser, syncing users' Chrome bookmarks, …
- 19. Android Versions Jelly Bean 4.2 2012/06/09 • based on Linux kernel 3.0.31 • improving functionality and performance of user interface. • the first device Nexus 7 tablet • Bi-directional text and other language support • Offline voice dictation
- 22. Android Management Switch Up Andy Rubin, head of Android at Google, moved on to a new role at the company. Sundar Pichai (Pichai Sundarajan), head of Chrome and Apps, is now in charge of Android.
- 23. Google's Android Statue Gets a Chrome Update • The new statue is mounted on Building 45 • perhaps some sort of Chrome-Android integration • But It Doesn’t Mean Anything!…
- 24. Android Next Version • Google's "sweet" naming convention • Every major release since Cupcake has been named after a confection in alphabetical order • Cupcake > Donut > Eclair > Froyo > Gingerbread > Honeycomb > IceCream Sandwich > JellyBean > K...!
- 25. Android Websites • www.android.com • developer.android.com • Play.google.com • www.stackoverflow.com • www.openhandsetalliance.com
- 28. SDK: Android Software Development Kit http://developer.android.com/sdk/index.html
- 29. Installing the Android ADT • Download ADT, unzip (or on Linux, untar) it into an easy access folder (for example) – Windows • C:appsandroid-adt-windows – Linux • /home/YourUserName/android-adt-linux_86 – Mac OS X • /Users/YourUserName/android-adt-mac_86 • For Windows strongly recommend directories without spaces
- 32. Creating a New Project File→New→Project→Android Application Project
- 33. Creating a New Project • In Eclipse choose, – File→New→Project→Android Application Project • Application Name: – The name of your application • Project Name: – Eclipse organizes everything into projects – project name should be one word and CamelCase • Package Name: – In Java, all source code is organized into packages – Your package name (reverse of your domain name)
- 34. Creating a New Project • Minimum required SDK: – minimum version of Android that is required for the device to run this application • Target SDK: – tells the build tools which version of the Android platform you are building for • Compile with: – Typically the most recent version that support all API • Theme: – Base theme to user for application
- 35. Configure Project New Android application→Next
- 36. Configure New Project • Create custom launcher icon: – Check to use a simple icon creator • Create activity: – Check to use activity creator tool • Mark this project as library: – Check if you want to create a library project to use in other projects
- 39. Android Project Important Parts • Manifest File • Layout XML Code • Strings • The R File • Java Source Code
- 40. Manifest File • Glues everything together • Explains what the application consists of • What all its main building blocks are • What permissions it requires • What is the application name, application icon • What is package name, version Code & Name • …
- 41. Layout XML Code XML file specifies the layout of your screen
- 42. Layout XML Code • XML file specifies the layout of your screen – TextView – Spinner – Button – ImageView
- 43. Strings XML file that contains all the text that your application uses
- 44. Strings • XML file that contains all the text that your application uses: – names of buttons – labels – default text – and similar types of strings…
- 45. The R File Glue between the world of Java and the world of resources
- 46. The R File • Glue between the world of Java and the world of resources • Automatically generated file, and you never modify it • Recreated every time you change anything in the res directory
- 47. Java Source Code Is what drives everything
- 48. Java Source Code • Is what drives everything • Code that ultimately gets converted to a Dalvik executable
- 51. The Emulator • Is an actual code emulator • It runs the same code base as the actual device • Have to create an Android Virtual Device (AVD), To use the emulator
- 52. Emulator vs. Simulator • sound very similar, but are fundamentally different • To emulate means to imitate the machine executing the binary code • An emulator is sort of like a virtual machine • A simulator merely simulates the behavior of the code at a higher level
- 53. Android Virtual Device (AVD)
- 54. Android Virtual Device (AVD) • Start the tool called Android SDK and AVD Manager with in SDK folder • Choose “New…” • In Create New AVD dialog window, you must specify some parameters for your new AVD
- 55. Android Virtual Device (AVD)
- 56. New AVD Dialog • Name: – can be any name you choose • Device: – Device that emulator look like • Target: – designates which version of Android – based on platforms and add-ons downloaded and installed • Keyboard • Skin • Front Camera • Ram, Internal Storage, SD Card
- 57. Emulator with -Android 4.2.2 AVD