Lars Röwekamp on Android4

Transcript

1. @mobileLarson @_openKnowledge Lars Röwekamp | CIO New Technologies ANDROID 4 How to ...
2. What‘s the talk about? Architecture Building Blocks UI Principles Development
3. What‘s the talk about? Architecture Building Blocks UI Principles Development Keep in mind, it‘s a mobile!
4. Why Android?
5. Smartphones
6. Smartphones 0 Mio 20 Mio 40 Mio 60 Mio 80 Mio Q1/11 Q2/11 Q3/11 Q4/11 Android Apple Blackberry Windows 7
7. Fragmentation 22,1 % 57,5 % 14,0 % 3,7 % 1.5 1.6 2.1 2.2 2.3.x 3.1 3.2 4+ September `12
8. Fragmentation 1.5 1.6 2.1 2.2 2.3.x 3.1 3.2 4+ September `12 93,6%
9. Architecture
10. Architecture
11. Demo APP
12. Demo APP Splash Overview Share Preferences
13. Demo APP
14. Building Blocks
15. Building Blocks Activity Service Content Provider Broadcast Receiver
16. Building Blocks Activity Service Content Provider Broadcast Receiver > UI logic > layout reference > lifecycle callbacks > started by own/other app > loosely coupled > Activity
17. Building Blocks Activity Service Content Provider Broadcast Receiver
18. Building Blocks Activity Service Content Provider Broadcast Receiver > background processing > long running operation(s) > remote processes > lifecycle callbacks > started by any „component“ > Service
19. Building Blocks Activity Service Content Provider Broadcast Receiver
20. Building Blocks Activity Service Content Provider Broadcast Receiver > app‘s data exporter > CRUD for any kind of data > REST alike access methods > ready-to-go CPs available > accessable by any app > ContentProvider
21. Building Blocks Activity Service Content Provider Broadcast Receiver
22. Building Blocks Activity Service Content Provider Broadcast Receiver > listener for broadcast intent* > low-battery, screen-off, ... > app can initiate own BIs* > status bar notifications > selection via intent filter > BroadcastReceiver * system wide events
23. Building Blocks Activity Service Content Provider Broadcast Receiver
24. Building Blocks
25. Building Blocks > intention to do something > activation of component > what to do? > which data needed? > return value expected? > Intent Intent
26. Building Blocks public class MainActivity extends Activity { .... @Override public void onCreate(Bundle savedInstanceState) { ! super.onCreate(savedInstanceState); ! setContentView(R.layout.main); } public void onClickMap(View btn) { ! Intent mapViewIntent = new Intent(this, MapViewActivity.class); ! startActivity(mapViewIntent); ! } .... } ... View Event View
27. Building Blocks Intent Aufruf Intent mapViewIntent = new Intent(this, MapViewActivity.class); startActivity(mapViewIntent); ! via Activity Class (MapViewActivity)
28. Building Blocks Intent intent = new Intent(this, Intent.ACTION_SEND); intent.putExtra(EXTRA_EMAIL, emailAddress); intent.putExtra(EXTRA_SUBJECT, emailSubject); intent.putExtra(EXTRA_TEXT, emailText); startActivity(intent); ! via Intent Action (ACTION_SEND) Intent Aufruf
29. Building Blocks startActivityForResult(myIntent)
30. Demo APP Splash Overview Share Preferences
31. Demo APP
32. UI Principles
33. Unified UI
34. Action Bar App Icon View Control Action Btn Action Overflow „Where am I?“ „What can I see?“ „What can I do?“
35. Action Bar „BTW: I need more space.“ Main Action Bar Top Bar Bottom Bar
36. Action Bar
37. Multi-Pane
38. Multi-Pane „more to come ...“
39. Resources
40. Resources Szenario A Szenario B
41. Resources Szenario A Szenario B
42. Resources Resolution
43. Resources Orientation
44. Resources Sizes
45. Resources public class MainActivity extends Activity { .... @Override public void onCreate(Bundle savedInstanceState) { ! super.onCreate(savedInstanceState); ! setContentView(R.layout.main); } .... } ... smallest width 600 device independent pixel? res/layout res/layout-sw600dp
46. Multi-Pane „more to come ... now“
47. Multi-Pane
48. Development
49. What do I need?
50. Android SDK > Application Framework > Dalvik Virtual Machine > Integrated Browser > SQLite Database > Telephony, Bluetooth, EDGE, 3G & Wifi > Camera, Compass, GPS, Accelerometer > UI Controls, Widgets, Map
51. Android Tooling > Eclipse/Idea + PlugIn > Virtual Device Manager > Emulator(s) > UI Designer > Debugger, also on device > Test Frameworks > Deployment Support (Emulator & Device) > Publishing & Signing
52. Shut up, we wanna see some code!
53. Demo APP
54. Coding Time
55. Keep in Mind
56. Keep in Mind Yes, size matters Expect the unexpected Do not reinvent the wheel Less is more User Experience counts
57. Keep in Mind Yes, size matters Expect the unexpected Do not reinvent the wheel Less is more User Experience counts
58. @mobileLarson @_openKnowledge Lars Röwekamp | CIO New Technologies ANDROID 4 How to ...