async Task ExecuteTakePictureCommandAsync()
{
try
{
if (!await PermissionHelper.Has(Permission.Camera) || !await PermissionHelper.Has(Permission.Storage))
{
await PermissionHelper.Request(Permission.Camera, Permission.Storage);
Description = "Access To Camera & Storage Denied.";
return;
}
if (AppSettings.ComputerVisionRoot == string.Empty || AppSettings.ComputerVisionKey == string.Empty)
{
await PermissionHelper.Request(Permission.Camera, Permission.Storage);
Description = "Root and Key are Empty.";
return;
}
IsNotBusy = false;
// Take a picture.
await CrossMedia.Current.Initialize();
MediaFile photo;
if (IsTakePicture)
{
if (CrossMedia.Current.IsCameraAvailable)
{
photo = await CrossMedia.Current.TakePhotoAsync(new StoreCameraMediaOptions
{
Directory = "DefinePicture",
Name = "pic.jpg"
});
}
else
{
IsTakePicture = false;
await Application.Current.MainPage.DisplayAlert("Alert", "No Camera Available On Your Device.", "OK");
photo = await CrossMedia.Current.PickPhotoAsync();
}
}
else
{
photo = await CrossMedia.Current.PickPhotoAsync();
}
DefinedImage = photo.Path;
ImageVisible = true;
// Let Computer Vision help on what you're looking at
Description = "Defining Picture...";
var client = new VisionServiceClient(AppSettings.ComputerVisionKey, AppSettings.ComputerVisionRoot);
AnalysisResult result = await client.DescribeAsync(photo.GetStream());
// Parse the result
var caption = StringExtension.ToTitleCase(result.Description.Captions[0].Text);
var confidence = Math.Floor(result.Description.Captions[0].Confidence * 100);
Description = $"Define Picture Result : \n{caption}. \nPercentage : {confidence}%";
IsNotBusy = true;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine($"ERROR: {ex.Message}");
Description = "Defining Picture Failed.";
IsNotBusy = true;
}
}