Android Overview.

1. Android Introduction Lars Vogel Twitter: @vogella Google+: http://gplus.to/vogella

2. What is Android? - Software stack based on Linux with a Java programming interface. - Open Source - Developed officially by the Open Handset Alliance lead by Google

4. Android is market-leader in the Smartphone segment More then 550 000 new phone activations per day (from 14 Juli 2011)

5. On Android you develop in Java Really?

6. Android Programming Application runs on the Dalvik virtual machine Tool dx converts Java Bytecode into Dalvik Executable Code (.dex) You use the Java programming language but Android does not run Java Bytecode

7. Overview of the API Capabilities Rich UI components Threads and Background Processing Full network stack (Http, JSON) Database and File System access Access to the hardware (GPS, Camera, Phone) and much more............

8. Developer Toolchain

9. Android Development Tools (ADT) for Eclipse Eclipse based tooling Windows Linux (i386) Mac OS (Intel)

10. Emulator QEMU-based ARM emulator runs same image as a device Use same toolchain to work with device or emulatorInital startup is slooooowwwwww.....

11. Android programming constructs

12. Main Android programming constructs Activity Views Intents Broadcast Receiver Services ContentProvider

13. Activity An activity is a single, focused thing that the user can do. Extends “android.app.Activity” Layout of Activity defines UI elements and their arrangements

14. I had only the best intents....

15. In Android there is no such thing as a monolistic application, everything is a connection of components.

16. Intents new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.vogella.de")); new Intent(Intent.ACTION_CALL, Uri.parse("tel:(+49)12345789")); New Intent(this, MyClass.class);

17. Deployment Also known as: I really hope that Steve likes my app....

18. Deployment USB Cable Market (Google, Amazon) Direct

19. There is more....

20. I can talk and hear Internet (java.net, Apache HttpClient, JSON...) Bluetooth Email SMS VoIP (SIP (Session Initiation Protocol))

21. I have feelings Camera API Motion Detection Location API (GIS) Heat Sensor Accelerator

22. Other Capabilities Good security system Push to device Storage: File System / Preferences SQLiteDatabase Interactive Widgets on the homescreen Live Wallpapers (as background) Animations and Styling Simple List handling (Multi-) Touch NFS Canvas / OpenGL ES (Game programming....)

23. Performance?

24. Be fast! Avoid ApplicationNotResponding Error Threads not allowed to modify the UI directly Use handler or AsyncTask to update the UI after Thread is done

25. Summary Android powerful and well-designed development platform Marketleader for Smartphones Power to the developer

26. Android: Where to go from here: Google for „Android Development Tutorials“ Android Training: http://www.vogella.de/training/android.html

28. Thank you For further questions: Lars.Vogel@gmail.com http://www.vogella.de Twitter http://www.twitter.com/vogella Google+ http://gplus.to/vogella

30. Performance snail 1181451

31. Performance Running man 377100

32. Hang-man 620961

33. Summary http://www.sxc.hu/photo/1184807

34. Question http://www.sxc.hu/photo/418215

35. Reading material http://www.sxc.hu/photo/406547