private async Task NewMethod()
{
ScanImage.SetValue(IsVisibleProperty, true);
try
{
if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakePhotoSupported)
{
await DisplayAlert("No Camera", ":( No camera available.", "OK");
return;
}
else
{
var file = await CrossMedia.Current.TakePhotoAsync(new Plugin.Media.Abstractions.StoreCameraMediaOptions
{
Directory = "Sample",
Name = "test.jpg",
SaveToAlbum = true,
});
if (file == null)
{
return;
}
if (ScanImage != null)
{
ScanImage.Source = ImageSource.FromStream(() =>
{
var stream = file.GetStream();
file.Dispose();
return(stream);
});
// mainSTack.IsVisible = false;
}
}
var scan = new ZXingScannerPage();
await Navigation.PushAsync(scan);
scan.OnScanResult += (result) =>
{
ZXing.BarcodeFormat barcodeFormat = result.BarcodeFormat;
string type = barcodeFormat.ToString();
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopAsync();
VinEnteredNumber.Text = result.Text;
});
};
}catch (Exception ex)
{
await DisplayAlert("Alert", " " + ex, "OK");
}
}
private async void OcrMethodCall()
{
ScanImage.SetValue(IsVisibleProperty, true);
try
{
if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakePhotoSupported)
{
await DisplayAlert("No Camera", ":( No camera available.", "OK");
return;
}
else
{
var file = await CrossMedia.Current.TakePhotoAsync(new Plugin.Media.Abstractions.StoreCameraMediaOptions
{
Directory = "Sample",
Name = "test.jpg",
SaveToAlbum = true,
});
if (file == null)
{
return;
}
if (ScanImage != null)
{
//lblImagePath.Text = "ImagePath" + file.Path;
byte[] testByte = CommonFunctions.ReadStream(file.GetStream());
////////////////////////////
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
// Request headers
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", "de7609da413944308cde16098d1097f0");
var uri = "https://centralus.api.cognitive.microsoft.com/vision/v2.0/ocr" + queryString;
HttpResponseMessage response;
// Request body
// byte[] byteData = Encoding.UTF8.GetBytes("{testByte}");
using (var content = new ByteArrayContent(testByte))
{
content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
response = await client.PostAsync(uri, content);
var contents = response.Content.ReadAsStringAsync().Result;
Debug.WriteLine("OCR response " + contents);
}
var responseResult = await response.Content.ReadAsStringAsync();
ocrModel = JsonConvert.DeserializeObject <OcrModel>(responseResult);
var wordCount = Convert.ToString(ocrModel.regions[0].lines[0].words.Count);
StringBuilder numberList = new StringBuilder();
for (int i = 0; i < ocrModel.regions[0].lines[0].words.Count; i++)
{
numberList.Append(ocrModel.regions[0].lines[0].words[i].text);
numberList.Append(" ");
}
VinEnteredNumber.Text = numberList.ToString();
Debug.WriteLine("Car Numebr " + numberList.ToString());
//////////////////////////////
ScanImage.Source = ImageSource.FromStream(() =>
{
var stream = file.GetStream();
file.Dispose();
return(stream);
});
// mainSTack.IsVisible = false;
}
}
}
catch (Exception ex) {
await DisplayAlert("Alert", " " + ex, "OK");
}
}
private void RadioButton_Clicked_DirectInput(object sender, EventArgs e)
{
ScanImage.SetValue(IsVisibleProperty, false); // the view is GONE, not invisible
VinEnteredNumber.Text = null;
VinNumber = VinEnteredNumber.Text;
}
