With Launchers and Choosers in Windows Phone, 3rd party apps integrate more closely into the underlying operating system while allowing end-users to perform common tasks. With Launchers and Choosers you will provide more functionality to your end-users while still maintaining that consistent user experience that will make your app feel like a native app. In this session we’ll cover how to use Windows Phone resources including camera, video and Bing maps. We’ll also cover accessing contacts and calendar as well as sensors (including accelerometer, compass, gyroscope and motion).

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4. Reading Contacts
and Calendars

6. <Capabilities>
<Capability Name="ID_CAP_LOCATION"/>
<Capability Name="ID_CAP_MEDIALIB"/>
... other capabilities here
<Capability Name="ID_CAP_CONTACTS"/>
<Capability Name="ID_CAP_APPOINTMENTS"/>
</Capabilities>

8. Other contact Calendar
Data provider Contact name Contact picture
data appointments
Windows Phone Device Yes Yes Yes Yes
Windows Live Social Yes Yes Yes Yes
Windows Live Rolodex Yes Yes Yes Yes
Exchange Accounts
(Contacts from local address book only, not Yes Yes Yes Yes
Global Address List.)
Mobile Operator Address Book Yes Yes Yes No
Facebook Yes Yes No No
Windows Live Aggregated Networks
No No No No
(Twitter, LinkedIn, etc.)

9. using Microsoft.Phone.UserData;
...
Contacts cons;
private void loadButton_Click(object sender,
RoutedEventArgs e)
{
cons = new Contacts();
cons.SearchCompleted += new EventHandler
<ContactsSearchEventArgs>(cons_SearchCompleted);
cons.SearchAsync(String.Empty,FilterKind.None,
"Contacts Load");
}

10. void cons_SearchCompleted(object sender,
ContactsSearchEventArgs e)
{
//Bind the results to the user interface.
ContactsListBox.DataContext = e.Results;
}

11. <ListBox Name="ContactsListBox"
ItemsSource="{Binding}" Height="347"
Margin="24,0,0,0" >
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock Name="ContactResults"
Text="{Binding Path=DisplayName,
Mode=OneWay}" />
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>

12. // enumerate the results we got back and get the source
foreach (Contact contact in e.Results)
{
foreach (Account account in contact.Accounts)
{
Debug.WriteLine(contact.DisplayName + ": "
+ account.Name);
}
}

13. Demo 1:
Contact Display

14. cons.SearchAsync("Ro", FilterKind.DisplayName,
"Contacts Load");
// Find all the contacts with names beginning "Ro"

15. apps.SearchAsync( new DateTime(2000, 1, 1),
new DateTime(2012, 1, 1),
"Appointment search");

16. Creating a Contact

18. 18

19. using Microsoft.Phone.Tasks;
...
SaveContactTask saveContact; //Declare with page scope
public MainPage()
{
saveContact = new SaveContactTask();
saveContact.Completed += new EventHandler
<SaveContactResult>(saveContact_Completed);
}
private void MakeContactButton_Click(object sender, RoutedEventArgs e)
{
saveContact.FirstName = FirstNameTextBox.Text;
saveContact.LastName = LastNameTextBox.Text;
saveContact.Show();
}

20. void saveContact_Completed(object sender,
SaveContactResult e)
{
if (e.TaskResult == TaskResult.OK)
{
MessageBox.Show("Saved OK");
}
}

21. 21

22. Demo 2:
Make a Contact
22

23. 23

24. Action Chooser Task
Get addresses, phone numbers and email AddressChooserTask,
addresses PhoneNumberChooserTask,
EmailAddressChooserTask
Select a picture from the media store PhotoChooserTask
Capture a picture using the camera CameraCaptureTask
Invite players to a multi-game session GameInviteTask
(XBL only)
Save email addresses or phone numbers SaveEmailAddressTask,
SavePhoneNumberTask
Save ringtones SaveRingtoneTask

25. Action Task
Open a web page WebBrowserTask
Search the Marketplace and find applications MarketplaceSearchTask, MarketPlaceHubTask
Show Marketplace App Details and Review MarketplaceDetailTask,
Apps MarketplaceReviewTask
Place a phone call PhoneCallTask
Send an email EmailComposeTask
Send an SMS message SMSComposeTask
Play media MediaPlayerTask
Start a search using Bing SearchTask
Show maps and directions from Bing Maps BingMapsTask, BingMapsDirectionsTask

26. Using the Camera
27

27. 28

28. cameraTask = new CameraCaptureTask();
cameraTask.Completed += new EventHandler<PhotoResult>
(cameraTask_Completed);
cameraTask.Show();

29. void cameraCapture_Completed(object sender, PhotoResult e)
{
if (e.TaskResult == TaskResult.OK)
{
photoImage.Source = new BitmapImage(
new Uri(e.OriginalFileName));
}
}

30. Demo 3:
Take a Picture
31

31. 32

32. using Microsoft.Devices;
...
PhotoCamera camera;
...
camera = new PhotoCamera();
//Set the VideoBrush source to the camera
viewfinderBrush.SetSource(camera);
camera.CaptureImageAvailable +=
new EventHandler<ContentReadyEventArgs>
(camera_CaptureImageAvailable);

33. <Rectangle Width="320" Height="240"
HorizontalAlignment="Left" >
<Rectangle.Fill>
<VideoBrush x:Name="viewfinderBrush" />
</Rectangle.Fill>
</Rectangle>

34. private void PhotoButton_Click(object sender,
RoutedEventArgs e)
{
camera.CaptureImage();
}

35. using Microsoft.Xna.Framework.Media;
...
void camera_CaptureImageAvailable(object sender,
ContentReadyEventArgs e)
{
Deployment.Current.Dispatcher.BeginInvoke(delegate()
{
string fileName = DateTime.Now.Ticks.ToString()
+ ".jpg";
MediaLibrary library = new MediaLibrary();
library.SavePictureToCameraRoll(fileName,
e.ImageStream);
});
}

36. using System.Windows.Media.Imaging;
...
void camera_CaptureImageAvailable(object sender,
ContentReadyEventArgs e)
{
Deployment.Current.Dispatcher.BeginInvoke(delegate()
{
BitmapImage b = new BitmapImage();
b.CreateOptions = BitmapCreateOptions.None;
b.SetSource(e.ImageStream);
PictureImage.Source = b;
});
}

37. using System.IO;
using System.IO.IsolatedStorage;
...
using (IsolatedStorageFile isStore =
IsolatedStorageFile.GetUserStoreForApplication()) {
using (IsolatedStorageFileStream targetStream =
isStore.OpenFile(fileName, FileMode.Create,
FileAccess.Write)) {
WriteableBitmap bitmap = new WriteableBitmap(b);
bitmap.SaveJpeg(targetStream, bitmap.PixelWidth,
bitmap.PixelHeight, 0, 100);
}
}

38. Demo 4:
In-App
Camera
39

39. 40

40. internal int FunkyColor(int color)
{
int a = color >> 24;
int r = (color & 0x00ff0000) >> 16;
int g = (color & 0x0000ff00) >> 8;
int b = (color & 0x000000ff);
r += redOffset;
g += greenOffset;
b += blueOffset;
return ((a & 0xFF) << 24) | ((r & 0xFF) << 16) |
((g & 0xFF) << 8) | (b & 0xFF);
}

41. camera = new Microsoft.Devices.PhotoCamera();
// Create the destination for the processed image
wb = new WriteableBitmap(640, 480);
this.ProcessedImage.Source = wb;
// Start the image pump when the camera is ready
camera.Initialized +=
new EventHandler<CameraOperationCompletedEventArgs>
(camera_Initialized);

42. void camera_Initialized(object sender,
CameraOperationCompletedEventArgs e)
{
pumpARGBFrames = true;
ARGBFramesThread =
new System.Threading.Thread(PumpARGBFrames);
ARGBFramesThread.Start();
}

43. int[] ARGBPx = new int[640 * 480];
...
captureEvent.WaitOne();
pauseFramesEvent.WaitOne(); //Thread sync with camera
//Copies the current viewfinder frame into a buffer
camera.GetPreviewBufferArgb32(ARGBPx);
//Conversion to funky colours
for (int i = 0; i < ARGBPx.Length; i++)
{
ARGBPx[i] = FunkyColor(ARGBPx[i]);
}

44. private WriteableBitmap wb;
...
pauseFramesEvent.Reset();
Deployment.Current.Dispatcher.BeginInvoke(delegate()
{
//Copy to WriteableBitmap
ARGBPx.CopyTo(wb.Pixels, 0);
wb.Invalidate();
pauseFramesEvent.Set();
});

45. Demo 6:
Funky
Camera
46

46. Using the Microphone

47. http://msdn.microsoft.com/en-us/library/gg442302.aspx

48. Using Sensors

50. using Microsoft.Devices.Sensors;

51. if (Gyroscope.IsSupported)
{
// we have a gyro on the phone
}

53. 54

54. using Microsoft.Devices.Sensors;
...
Motion motion;
...
motion = new Motion();
motion.TimeBetweenUpdates =
TimeSpan.FromMilliseconds(20);
motion.CurrentValueChanged += new EventHandler
<SensorReadingEventArgs<MotionReading>>
(motion_CurrentValueChanged);

55. // Try to start the Motion API.
try
{
motion.Start();
}
catch (Exception)
{
MessageBox.Show("unable to start the Motion API.");
}

56. private void CurrentValueChanged(MotionReading e)
{
if (motion.IsDataValid)
{
// Show the numeric values for attitude.
yawTextBlock.Text = "YAW: " + MathHelper.ToDegrees(e.Attitude.Yaw).ToString("0") + "°";
pitchTextBlock.Text = "PITCH: " + MathHelper.ToDegrees(e.Attitude.Pitch).ToString("0") + "°";
rollTextBlock.Text = "ROLL: " + MathHelper.ToDegrees(e.Attitude.Roll).ToString("0") + "°";
}
}

57. Video Content

58. <MediaElement Name= "MediaPlayback"
Source= "myvideo.wmv" AutoPlay="True"/>
http://msdn.microsoft.com/en-us/library/ff462087.aspx

59. <MediaElement Name= "MediaPlayback"
Source=
"http://mschannel9.vo.msecnd.net/o9/mix/09/wmv/key01.wmv"
AutoPlay="True"/>

60. private void pauseButton_Click(object sender,
RoutedEventArgs e)
{
MediaPlayback.Pause();
}

61. http://smf.codeplex.com/releases/view/63434#DownloadId=222617

62. 63

63. http://aka.ms/mbl-phone/start
http://aka.ms/mbl-phone/tools
http://aka.ms/mbl-phone/mango
http://aka.ms/mbl-phone/register

65. Follow me on Twitter
or the Puppy gets it
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