async void OpenAnalyzeFaces(object sender, EventArgs args)
{
var page = new ImageCapturePage();
var vm = new ImageCaptureViewModel();
vm.ImageConfirmed += async(image) =>
{
// Ensure activity indicator is displaying
ViewModel.Analyzing = true;
// Close Image Capture Page
await Navigation.PopModalAsync();
// TODO Call face detection service
var detectedFaces = await FaceDetection.ProcessImageAsync(image);
var resultPage = new FaceRecognitionDisplayPage();
var resultViewModel = new FaceRecognitionDisplayViewModel
{
Faces = detectedFaces,
Image = image
};
resultPage.BindingContext = resultViewModel;
await Navigation.PushAsync(resultPage);
ViewModel.Analyzing = false;
};
page.BindingContext = vm;
await Navigation.PushModalAsync(new NavigationPage(page));
}
async void OpenAnalyzeImage(object sender, EventArgs args)
{
var page = new ImageCapturePage();
var vm = new ImageCaptureViewModel();
vm.ImageConfirmed += async(image) =>
{
// Have the progress indicator displayed
ViewModel.Analyzing = true;
// Close the ImageCapturePage
await Navigation.PopModalAsync();
// Do analysis and display results page
var tags = await VisionService.GetTagsAsync(image);
var resultViewModel = new ImageResultViewModel
{
Image = image,
ImageSource = ImageSource.FromStream(image.GetStream),
Tags = new ObservableCollection <ImageTag>(tags)
};
var resultPage = new ImageResultPage
{
BindingContext = resultViewModel
};
await Navigation.PushAsync(resultPage);
// Hide the progress indicator
ViewModel.Analyzing = false;
};
page.BindingContext = vm;
await Navigation.PushModalAsync(new NavigationPage(page));
}
