This document discusses multitasking on Windows Phone. It outlines several multitasking patterns including quick switching between running apps, starting apps in the foreground and running them in the background, and starting apps in the background and running them in the background. It also describes different types of multitasking including background notification services, alarms, reminders, background transfers, background audio, and background agents. Background agents can be periodic, occurring every 30 minutes for 15 seconds, or on idle, occurring when external power and non-cellular network are detected for up to 10 minutes. The presentation concludes with a discussion of deep linking functionality.

1. Multitasking On Windows Phone Jason Lee Ethos Technologies

3. Multitasking Patterns

4. Multitasking Types

5. Code Samples

7. Delightful and responsive

8. Integrated Feel

9. Never regret installing applications

10. Resource Friendly

11. Battery Saving

12. Network Conscience

14. Quick Resume : Hit Start key and come back within a short period

15. Quick Switch : Long-press on Back key, and choose between running apps

16. Start in Foreground, Run in Background

17. Audio Player

18. Start in Background, Run in Background

20. Alarms

21. Reminders

22. Background Transfer Service

23. Has limitation on file size for cellular network

24. Deal with large file when wifi is available

25. Background Audio

26. Supports both Silverlight applications and HTML 5

27. Extend control to foreground such as volume control, track navigation, play/pause

28. Background Agent

29. Initialized foreground, run in Background

31. Occurs every 30 minutes

32. Duration : 15 seconds

33. Scenarios : Incremental data sync, Location

34. On Idle Agent

35. Occurs when external power and non-cellular network detected

36. Duration : 10 minutes

37. Scenarios : Large data transferring

38. Limitations

39. Up to a maximum of 18 periodic agents allowed on a phone

42. Get familiar with multitasking model and development pattern

44. When you play around with phone, a reminder comes up

45. You hit the reminder, and system navigates to the relevant page