09 wp7 multitasking

Multitasking
On
Windows Phone
Jason Lee
Ethos Technologies

Agenda
Multitasking Considerations
Multitasking Patterns
Multitasking Types
Code Samples
Q & A

Considerations
User Experience
Delightful and responsive
Integrated Feel
Never regret installing applications
Resource Friendly
Battery Saving
Network Conscience
Hardened Services

Multitasking Patterns
Quick Switch / Resume
Quick Resume : Hit Start key and come back within a short period
Quick Switch : Long-press on Back key, and choose between running apps
Start in Foreground, Run in Background
Audio Player
Start in Background, Run in Background
Auto Check-In

Multitasking Types
Background Notification Service
Alarms
Reminders
Background Transfer Service
Has limitation on file size for cellular network
Deal with large file when wifi is available
Background Audio
Supports both Silverlight applications and HTML 5
Extend control to foreground such as volume control, track navigation, play/pause
Background Agent
Initialized foreground, run in Background
Persists across reboots

Agent
Periodic Agent
Occurs every 30 minutes
Duration : 15 seconds
Scenarios : Incremental data sync, Location
On Idle Agent
Occurs when external power and non-cellular network detected
Duration : 10 minutes
Scenarios : Large data transferring
Limitations
Up to a maximum of 18 periodic agents allowed on a phone
Each agent runs for 14 days. Can be renewed before deadline, otherwise abandoned

Agent Functionality

Play Time !
Goals
Get familiar with multitasking model and development pattern
Understand how to create an agent

Deep Linking
Scenario
When you play around with phone, a reminder comes up
You hit the reminder, and system navigates to the relevant page
This page may be the main page of the app, or may be not, in which case we call the navigation activity as Deep Linking

! & ?
Thank You !
Any Questions ?

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09 wp7 multitasking

by Tao on Jul 20, 2011

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09 wp7 multitasking — Presentation Transcript