private async void OnAnalyzeFaces(object sender, EventArgs e)
{
if (_photo == null)
{
return;
}
EnableAllButtons(false);
try
{
IList <DetectedFace> faces = await FaceDetection.MakeAnalysisRequest(_photo);
DetectedFace face = faces.FirstOrDefault();
ActivityIndicator.IsRunning = false;
if (face == null)
{
await DisplayAlert("Face Analysis", "No Faces Found", "OK");
return;
}
string smiling = face.FaceAttributes.Smile >= 0.75 ? "smiling" : "not smiling";
var analysis = $"{face.FaceAttributes.Age} year old {face.FaceAttributes.Gender} who is {smiling}.";
await DisplayAlert("Face Analysis", analysis, "OK");
}
catch (Exception ex)
{
await DisplayAlert("Analysis Error", ex.Message, "OK");
}
finally
{
EnableAllButtons(true);
}
}