protected async override void OnActivated(IActivatedEventArgs args)
{
base.OnActivated(args);
var continuationEventArgs = args as IContinuationActivatedEventArgs;
if (continuationEventArgs != null)
{
switch (continuationEventArgs.Kind)
{
case ActivationKind.PickFileContinuation:
FileOpenPickerContinuationEventArgs arguments = continuationEventArgs as FileOpenPickerContinuationEventArgs;
StorageFile file = arguments.Files.FirstOrDefault();
var messenger = Mvx.Resolve<IMvxMessenger>();
using (var imgStream = await file.OpenAsync(FileAccessMode.Read))
{
var buffer = new byte[imgStream.Size];
await imgStream.ReadAsync(buffer.AsBuffer(), (uint)imgStream.Size, InputStreamOptions.None);
var properties = await file.Properties.GetImagePropertiesAsync();
var message = new PictureMessage(this)
{
Width = properties.Width,
Height = properties.Height,
Picture = buffer
};
messenger.Publish(message);
}
break;
}
}
}
async Task OnPictureReceivedAsync(PictureMessage message)
{
var nutritionTable = await OCRService.GetTableAsync(message.Picture, message.Width, message.Height);
ShowViewModel<InfoViewModel>(nutritionTable);
}
