protected async override void OnResume()
{
base.OnResume();
_errorView.Visibility = ViewStates.Gone;
_textZone.Visibility = ViewStates.Gone;
_loadingView.Visibility = ViewStates.Visible;
_loadingView.StartIndeterminate();
if (!string.IsNullOrEmpty(_picturePath))
{
new Thread(new ThreadStart(async() =>
{
_pictureBytes = System.IO.File.ReadAllBytes(_picturePath);
Bitmap bitmap = await BitmapFactory.DecodeByteArrayAsync(
_pictureBytes, 0, _pictureBytes.Length);
Bitmap cropped = Bitmap.CreateScaledBitmap(bitmap, 1920, 1080, false);
byte[] byteArray;
using (var stream = new MemoryStream())
{
await cropped.CompressAsync(Bitmap.CompressFormat.Jpeg, 100, stream);
byteArray = stream.ToArray();
}
try
{
var result = await _visionService.RecognizeTextService(byteArray);
RunOnUiThread(() =>
{
_loadingView.StopOk();
_loadingView.Visibility = ViewStates.Gone;
if (result == null)
{
throw new Exception("");
}
PrintText(result.Lines);
});
}
catch (Exception e)
{
if (!string.IsNullOrEmpty(e.Message))
{
_errorView.Text = e.Message;
}
RunOnUiThread(() =>
{
_loadingView.StopOk();
_loadingView.Visibility = ViewStates.Gone;
_errorView.Visibility = ViewStates.Visible;
});
}
})).Start();
}
}
private void initProgressCircles()
{
animatedCircleLoadingViewIndeterminate.StartIndeterminate();
animatedCircleLoadingView.StartDeterminate();
Task.Run(async() => {
await Task.Delay(1000);
for (int i = 1; i < 100; i++)
{
await Task.Delay(100);
RunOnUiThread(() => {
animatedCircleLoadingView.SetPercent(i);
});
}
});
}