async Task PredictPhoto(MediaFile photo)
{
var endpoint = new PredictionEndpoint
{
ApiKey = await KeyService.GetPredictionKey()
};
var results = await endpoint.PredictImageAsync(Guid.Parse(await KeyService.GetProjectId()),
photo.GetStream());
AllPredictions = results.Predictions
.Where(p => p.Probability > Probability)
.ToList();
// Create the Api, passing in the training key
CustomVisionTrainingClient trainingApi = new CustomVisionTrainingClient()
{
ApiKey = KeyService.TK,
Endpoint = KeyService.SouthCentralUsEndpoint
};
// Find the object detection domain
//var domains = trainingApi.GetDomains();
//var objDetectionDomain = domains.FirstOrDefault(d => d.Type == "ObjectDetection");
//upload to service
trainingApi.CreateImagesFromData(Guid.Parse(await KeyService.GetProjectId()), photo.GetStream(), null);
}
protected override async void OnStart()
{
if (string.IsNullOrWhiteSpace(await KeyService.GetPredictionKey()) ||
string.IsNullOrWhiteSpace(await KeyService.GetProjectId()))
{
await MainPage.Navigation.PushModalAsync(SettingsPage.CreateSettingsPage(), false);
}
}
async Task Ok()
{
IsEnabled = false;
try
{
var client = new CustomVisionPredictionClient
{
ApiKey = PredictionKey,
Endpoint = Endpoint
};
if (Guid.TryParse(ProjectId, out var pId))
{
var imagePath = "ObjectDetector.Images.single.png";
var assembly = typeof(SettingsViewModel).GetTypeInfo().Assembly;
using (var stream = assembly.GetManifestResourceStream(imagePath))
{
await client.DetectImageWithNoStoreAsync(pId, publishName, stream);
}
await KeyService.SetPredictionKey(PredictionKey);
await KeyService.SetProjectId(ProjectId);
await KeyService.SetPublishName(PublishName);
await KeyService.SetEndpoint(Endpoint);
Analytics.TrackEvent("Updating keys");
await Application.Current.MainPage.Navigation.PopModalAsync();
}
else
{
Analytics.TrackEvent("Failed updating keys", new Dictionary <string, string> {
{ "Error", "The project Id is not a valid GUID" }
});
await Application.Current.MainPage.DisplayAlert("Error", "The project Id is not a valid GUID", "OK");
}
}
catch (Exception ex)
{
Analytics.TrackEvent("Failed updating keys", new Dictionary <string, string> {
{ "Error", "The project Id and prediction key don't match an existing project" }
});
Crashes.TrackError(ex, new Dictionary <string, string> {
{ "Action", "Testing key and project id" }
});
await Application.Current.MainPage.DisplayAlert("Error", "The project Id and prediction key don't match an existing project", "OK");
}
finally
{
IsEnabled = true;
}
}
public async Task SetUp()
{
try
{
PredictionKey = await KeyService.GetPredictionKey();
ProjectId = await KeyService.GetProjectId();
}
finally
{
IsEnabled = true;
}
}
async Task PredictPhoto(MediaFile photo)
{
var endpoint = new PredictionEndpoint
{
ApiKey = await KeyService.GetPredictionKey()
};
var results = await endpoint.PredictImageAsync(Guid.Parse(await KeyService.GetProjectId()),
photo.GetStream());
AllPredictions = results.Predictions
.Where(p => p.Probability > Probability)
.ToList();
}
async Task PredictPhoto(MediaFile photo)
{
var endpoint = new CustomVisionPredictionClient
{
ApiKey = await KeyService.GetPredictionKey(),
Endpoint = await KeyService.GetEndpoint()
};
var results = await endpoint.DetectImageAsync(Guid.Parse(await KeyService.GetProjectId()),
await KeyService.GetPublishName(),
photo.GetStream());
AllPredictions = results.Predictions
.Where(p => p.Probability > Probability)
.ToList();
}
public async Task SetUp()
{
if (string.IsNullOrWhiteSpace(PredictionKey) &&
string.IsNullOrWhiteSpace(ProjectId) &&
string.IsNullOrWhiteSpace(PublishName) &&
string.IsNullOrWhiteSpace(Endpoint))
{
try
{
PredictionKey = await KeyService.GetPredictionKey();
ProjectId = await KeyService.GetProjectId();
PublishName = await KeyService.GetPublishName();
Endpoint = await KeyService.GetEndpoint();
}
finally
{
IsEnabled = true;
}
}
}
public SettingsViewModel()
{
#pragma warning disable RECS0165 // Asynchronous methods should return a Task instead of void
OpenCustomVisionCommand = new Command(async() => await Xamarin.Essentials.Launcher.OpenAsync("https://customvision.ai"));
OkCommand = new Command(async() => await Ok(), () => !string.IsNullOrWhiteSpace(PredictionKey) && !string.IsNullOrWhiteSpace(ProjectId) && Guid.TryParse(ProjectId, out var g));
ConfigureCanCancelCommand = new Command(async() => CanCancel = !string.IsNullOrWhiteSpace(await KeyService.GetPredictionKey()) && !string.IsNullOrWhiteSpace(await KeyService.GetProjectId()));
CancelCommand = new Command(async() => await Application.Current.MainPage.Navigation.PopModalAsync());
#pragma warning restore RECS0165 // Asynchronous methods should return a Task instead of void
IsEnabled = false;
}
