/// <summary>
/// The <see cref="PhotoCamera.PhotoCaptured"/> event handler.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="capturedPhoto">Captured photo.</param>
private void CameraOnPhotoCaptured(object sender, ICapturedPhoto capturedPhoto)
{
// In our application we capture only single frame, so we can update view model state in
// the current method.
// If your application captures multiple frames, you may want to modify the 'CameraOnCaptureStopped'
// method or add additional logic here.
DispatcherHelper.BeginInvokeOnUIThread(async() =>
{
this.State = MainPageViewModelState.SavingCaptureResult;
this.NotifyFocusStateChanged(new FocusStateChangedEventArgs(FocusState.Unlocked));
try
{
using (capturedPhoto)
{
IThumbnailedImage image = await this.storageService.SaveResultToCameraRollAsync(capturedPhoto);
// Get the preview image.
BitmapImage source = new BitmapImage();
source.SetSource(image.GetThumbnailImage());
this.Items.Add(image);
this.ReviewImageBrush = new ImageBrush {
ImageSource = source
};
}
}
finally
{
this.State = MainPageViewModelState.Loaded;
}
});
}
private static void OnDataContextPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ThumbnailedImageViewer mediaItemViewer = (ThumbnailedImageViewer)d;
IThumbnailedImage newPhoto = e.NewValue as IThumbnailedImage;
mediaItemViewer.ClearImageSources();
if (e.NewValue != null)
{
mediaItemViewer.ShowPlaceholder();
mediaItemViewer.BeginLoadingThumbnail();
}
else
{
mediaItemViewer._image.Source = null;
}
}
