1. Welcome!
Windows Phone 7 Programming
Model
Catalin Gheorghiu
I Computer Solutions

2. Agenda
• What we will not talk about
• Application Life Cycle
• Navigation
• Task Programming Model
• Input layout
• Performance Tricks
• Q&A

3. <Application.ApplicationLifetimeObjects>
<shell:PhoneApplicationService
Launching="Application_Launching"
Closing="Application_Closing"
Activated="Application_Activated"
Deactivated="Application_Deactivated"/>
</Application.ApplicationLifetimeObjects>
Application Lifecycle

4. Navigation
<HyperlinkButton
Content="Page 1"
NavigateUri="/Page1.xaml" />
<HyperlinkButton
Content="P1"
NavigateUri="/P1" />

5. Task Programming Model
• Task
– new Task().Show()
– Task.Show()
• Choosers
– Chooser :
ChooserBase<TaskEventArgs>
– event Completed

6. Tasks
• EmailComposeTask
Use this to allow users to send email from your application
• MarketplaceLauncher
Allows an application to launch the Marketplace application
• MediaPlayerLauncher
Allows an application to launch the media player
• PhoneCallTask
Allows an application to launch the Phone application; use this to allow
users to make a phone call from your application
• SearchTask
Allows an application to launch the Web Search application
• SmsComposeTask
Allows and application to launch the SMS application
• WebBrowserTask
Allows an application to launch the Web Browser application

7. Choosers
• SaveEmailAddressTask
• SavePhoneNumberTask
• EmailAddressChooserTask
• CaptureCameraTask
• PhotoChooserTask

8. InputScope
<TextBox Height="31" HorizontalAlignment="Left" Margin="16,173,0,0"
Name="textBox1" Text="TextBox" VerticalAlignment="Top"
Width="449">
<TextBox.InputScope>
<InputScope>
<InputScope.Names>
<InputScopeName NameValue =
"EmailNameOrAddress“/>
</InputScope.Names>
</InputScope>
</TextBox.InputScope>
</TextBox>

9. Performance Tricks
• JPEG vs. PNG
• Content vs. Resource
• Assembly Loading
• LayoutUpdated vs. ctor
• Use SplashSxcreenImage.jpg
• Animations in CompositorThread

10. Frame Rate Counters
•Compositor Thread Rate (30<x<=60)
•UI Thread Rate (> 20)
•Memory Usage for Textures
•Number of Surfaces
•Number of Implicit Surfaces
•Fill Rate Counter (1=480x500)

11. • Application Life Cycle
Launching, Closing, Activated, Deactivated
• Navigation
1.Uri="/JUMP1/{num}"
MappedUri="/Page1.xaml?id={num}"
2. <HyperlinkButton NavigateUri="/JUMP1/1/>
3. NavigationService.Navigate(new Uri("/Page1.xaml?id=1",
UriKind.Relative)
5. NavigationContext.QueryString["id"]
• Task Programming Model
Choosers, Launchers
• InputScope
How and when
• Performance Tricks
Use JPEG, use Content build action, change Splash, control memory by
using of External Content,…
Recap & Q&A

12. Resources:
• Windows Phone Training Kit
http://www.microsoft.com/downloads/en/details.aspx?
FamilyID=ca23285f-bab8-47fa-b364-11553e076a9a
• Damir’s blog
http://developers.de/blogs/damir_dobric/default.aspx
Contact:
• My Blog
http://ronua.ro/CS/blogs/catalin/default.aspx
• My Mail
catalin.gheorghiu@ronua.ro