private async void OnAnalyzeText(object sender, EventArgs e)
{
if (_photo == null)
{
return;
}
EnableAllButtons(false);
try
{
RecognitionResult result = await ComputerVision.MakeTextRequest(_photo);
ActivityIndicator.IsRunning = false;
if (result == null)
{
await DisplayAlert("Text Result", "No text found", "OK");
return;
}
var text = new StringBuilder();
foreach (var line in result.Lines)
{
text.AppendLine(string.Join(" ", line.Text));
}
await DisplayAlert("Text Result", text.ToString(), "OK");
}
catch (Exception ex)
{
await DisplayAlert("Text Error", ex.Message, "OK");
}
finally
{
EnableAllButtons(true);
}
}
private async void OnAnalyzeOcr(object sender, EventArgs e)
{
if (_photo == null)
{
return;
}
EnableAllButtons(false);
try
{
OcrResult result = await ComputerVision.MakeOcrRequest(_photo);
ActivityIndicator.IsRunning = false;
if ((result?.Regions.Count ?? 0) == 0)
{
await DisplayAlert("OCR Result", "No text found", "OK");
return;
}
var text = new StringBuilder();
foreach (var region in result.Regions)
{
foreach (var line in region.Lines)
{
text.AppendLine(string.Join(" ", line.Words.Select(w => w.Text)));
}
text.AppendLine();
}
await DisplayAlert("OCR Result", text.ToString(), "OK");
}
catch (Exception ex)
{
await DisplayAlert("OC Error", ex.Message, "OK");
}
finally
{
EnableAllButtons(true);
}
}
private async void OnAnalyzePhoto(object sender, EventArgs e)
{
if (_photo == null)
{
return;
}
EnableAllButtons(false);
try
{
ImageAnalysis analysis = await ComputerVision.MakeAnalysisRequest(_photo);
ActivityIndicator.IsRunning = false;
await DisplayAlert("Image Analysis", analysis?.Description.Captions.FirstOrDefault()?.Text, "OK");
}
catch (Exception ex)
{
await DisplayAlert("Analysis Error", ex.Message, "OK");
}
finally
{
EnableAllButtons(true);
}
}
