Android Application Development

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Android Application Devlopment. A Guide for the Intermediate Developer. Degree Thesis in Computer Science presented at Malmo Univerity, School of Technology, Department of Computer Science June 4, 2010.

Tecnología

Android
Application
Development
____________________________

- A guide for the Intermediate Developer

Developer?

• Keep Track of the Android Market
Downloads!
• Target lowest version - 1.5 today
• Target important versions (1.5, 1.6 & 2.1)

Who owns Android?

http://www.openhandsetalliance.com/

Who is OHA?
Mobile Semiconductor
Operators Companies

Who is OHA?
Mobile Semiconductor Handset
Operators Companies Manufacturers

Who is OHA?
Mobile Semiconductor Handset Software
Operators Companies Manufacturers Companies

Who is OHA?
Mobile Semiconductor Handset Software Commercialization
Operators Companies Manufacturers Companies Companies

Android SDK +

• Java Android Library (~Java SE)

Android SDK +

• Java Android Library (~Java SE)
• Java version 1.5 (1.6)

Android SDK +

• Java Android Library (~Java SE)
• Java version 1.5 (1.6)
• Eclipse IDE + Android Development Tool

Android SDK +

• Java Android Library (~Java SE)
• Java version 1.5 (1.6)
• Eclipse IDE + Android Development Tool
• Android Virtual Device

Android SDK +

• Java Android Library (~Java SE)
• Java version 1.5 (1.6)
• Eclipse IDE + Android Development Tool
• Android Virtual Device
• SD-Card Size > 8 MiB (16 MiB)

AndroidManifest.xml

android:label=“@string/app_name”

strings.xml
android:text=“@string/hello”

<string name=“hello”>Hello World!</string>

strings.xml
android:label=“@string/app_name”
android:text=“@string/hello”

<string name=“hello”>Hello World!</string>
<string name=“app_name”>First App</string>

FirstApp.java

setContentView(R.layout.main);
= res/layout/main.xml

Hello World!
<string name=“app_name”>First App</string>

<string name=“hello”>Hello World!</string>

Multitasking

public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
...
}

Dalvik Virtual Machine
Instance InstanceInstance
Instance
Instance Instance
Instance Instance
Instance Instance Instance

OS Terminator
Instance InstanceInstance
Instance
Instance Instance
Instance Instance
Instance Instance Instance

Memory

OS Terminator
InstanceInstance
Instance
Instance Instance
Instance Instance
Instance Instance Instance

savedInstanceState
Memory

OS Terminator
InstanceInstance
Instance
Instance Instance
Instance Instance
Instance Instance

savedInstanceState Instance
Memory

OS Terminator
InstanceInstance
Instance
Instance Instance
Instance Instance
Instance Instance

savedInstanceState savedInstanceState
Memory

User Re-activate App
InstanceInstance
Instance
Instance Instance
Instance Instance
Instance Instance

savedInstanceState savedInstanceState
Memory

User Re-activate App

Instance
Instance Instance

savedInstanceState savedInstanceState
Memory

User Re-activate App
Instance
Instance
Instance Instance

savedInstanceState
Memory

User Re-activate App
Instance
Instance Instance
savedInstanceState
Instance Instance

Memory

Test Application
1. Connect to Network server
Quick
2. Login with Facebook connect Value Win
3. Login with user/password 2. 1.
3.
Easy

Test Application
1. Connect to Network server
Quick
2. Login with Facebook connect Value Win
3. Login with user/password 2. 1.
3.
High Value &
Easy
Difﬁcult

Facebook Connect
http://apps.facebook.com/myfbdevapp/
Facebook
Developer

Your
server

Android FB Connect

• FBRocket
• iPhone clone

http://wiki.developers.facebook.com/index.php/User:Android

Networking

• HTTP + SSL = HTTPS
• Use threads to increase User Experience

Now what?
This summer: Develop mobile app for...

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Android Application Development

1. Android Application Development ____________________________ - A guide for the Intermediate Developer

2. What is Android?

3. Versions of Android

4. Android Market April 12

5. Android Market June 1

6. Android Market in 7 weeks >>>

7. Developer? • Keep Track of the Android Market Downloads! • Target lowest version - 1.5 today • Target important versions (1.5, 1.6 & 2.1)

8. Who owns Android? http://www.openhandsetalliance.com/

9. Who is OHA? Mobile Operators

10. Who is OHA? Mobile Semiconductor Operators Companies

11. Who is OHA? Mobile Semiconductor Handset Operators Companies Manufacturers

12. Who is OHA? Mobile Semiconductor Handset Software Operators Companies Manufacturers Companies

13. Who is OHA? Mobile Semiconductor Handset Software Commercialization Operators Companies Manufacturers Companies Companies

14. Not just...

15. Android SDK +

16. Android SDK + • Java Android Library (~Java SE)

17. Android SDK + • Java Android Library (~Java SE) • Java version 1.5 (1.6)

18. Android SDK + • Java Android Library (~Java SE) • Java version 1.5 (1.6) • Eclipse IDE + Android Development Tool

19. Android SDK + • Java Android Library (~Java SE) • Java version 1.5 (1.6) • Eclipse IDE + Android Development Tool • Android Virtual Device

20. Android SDK + • Java Android Library (~Java SE) • Java version 1.5 (1.6) • Eclipse IDE + Android Development Tool • Android Virtual Device • SD-Card Size > 8 MiB (16 MiB)

21. Android Virtual Device

22. How Android Works

23. Your ﬁrst Android App ?

24. Your ﬁrst Android App ? “Hello World!”

25. AndroidManifest.xml

26. AndroidManifest.xml android:label=“@string/app_name”

27. main.xml

28. main.xml android:text=“@string/hello”

29. strings.xml

30. strings.xml android:text=“@string/hello” <string name=“hello”>Hello World!</string>

31. strings.xml android:label=“@string/app_name” android:text=“@string/hello” <string name=“hello”>Hello World!</string> <string name=“app_name”>First App</string>

32. FirstApp.java

33. FirstApp.java setContentView(R.layout.main); = res/layout/main.xml

34. Hello World!

35. Hello World! <string name=“app_name”>First App</string> <string name=“hello”>Hello World!</string>

36. Multitasking

37. Multitasking public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ... }

38. Dalvik Virtual Machine

39. Dalvik Virtual Machine Instance InstanceInstance Instance Instance Instance Instance Instance Instance Instance Instance

40. OS Terminator Instance InstanceInstance Instance Instance Instance Instance Instance Instance Instance Instance Memory

41. OS Terminator InstanceInstance Instance Instance Instance Instance Instance Instance Instance Instance Instance Memory

42. OS Terminator InstanceInstance Instance Instance Instance Instance Instance Instance Instance Instance savedInstanceState Memory

43. OS Terminator InstanceInstance Instance Instance Instance Instance Instance Instance Instance savedInstanceState Instance Memory

44. OS Terminator InstanceInstance Instance Instance Instance Instance Instance Instance Instance savedInstanceState savedInstanceState Memory

45. User Re-activate App InstanceInstance Instance Instance Instance Instance Instance Instance Instance savedInstanceState savedInstanceState Memory

46. User Re-activate App Instance Instance Instance savedInstanceState savedInstanceState Memory

47. User Re-activate App Instance Instance Instance Instance savedInstanceState Memory

48. User Re-activate App Instance Instance Instance savedInstanceState Instance Instance Memory

49. Test Application 1. Connect to Network server Quick 2. Login with Facebook connect Value Win 3. Login with user/password 2. 1. 3. Easy

50. Test Application 1. Connect to Network server Quick 2. Login with Facebook connect Value Win 3. Login with user/password 2. 1. 3. High Value & Easy Difﬁcult

51. Connect Android phone Network server

52. Connect Android phone Network server

53. Facebook Connect http://apps.facebook.com/myfbdevapp/ Facebook Developer Your server

54.

55. Your Server... Google Analytics!

56. Android FB Connect • FBRocket • iPhone clone http://wiki.developers.facebook.com/index.php/User:Android

57. Networking • HTTP + SSL = HTTPS • Use threads to increase User Experience

58. Reference

59. Reference

60. Now what? This summer: Develop mobile app for...

61. Now what? This summer: Develop mobile app for...

62. Opposition

Android Application Development

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