public void setLines(TextCaptureServiceTextLine[] lines,
RecognitionServiceResultStabilityStatus resultStatus)
{
if (lines != null && scaleDenominatorX > 0 && scaleDenominatorY > 0)
{
this.quads = new Point[lines.Length * 4];
this.lines = new String[lines.Length];
for (int i = 0; i < lines.Length; i++)
{
TextCaptureServiceTextLine line = lines[i];
for (int j = 0; j < 4; j++)
{
this.quads[4 * i + j] = new Point(
(scaleNominatorX * line.Quadrangle[j].X) / scaleDenominatorX,
(scaleNominatorY * line.Quadrangle[j].Y) / scaleDenominatorY
);
}
this.lines[i] = line.Text;
}
switch (resultStatus.ToString())
{
case "NotReady":
textPaint.SetARGB(255, 128, 0, 0);
break;
case "Tentative":
textPaint.SetARGB(255, 128, 0, 0);
break;
case "Verified":
textPaint.SetARGB(255, 128, 64, 0);
break;
case "Available":
textPaint.SetARGB(255, 128, 128, 0);
break;
case "TentativelyStable":
textPaint.SetARGB(255, 64, 128, 0);
break;
case "Stable":
textPaint.SetARGB(255, 0, 128, 0);
break;
}
stability = resultStatus.Ordinal();
}
else
{
stability = 0;
this.lines = null;
this.quads = null;
}
this.Invalidate();
}
public void OnFrameProcessed(TextCaptureServiceTextLine[] lines, RecognitionServiceResultStabilityStatus resultStatus, RecognitionServiceWarning warning)
{
// Frame has been processed. Here we process recognition results. In this sample we
// stop when we get stable result. This callback may continue being called for some time
// even after the service has been stopped while the calls queued to this thread (UI thread)
// are being processed. Just ignore these calls:
if (!activity.stableResultHasBeenReached)
{
if (resultStatus.Ordinal() >= 3)
{
// The result is stable enough to show something to the user
activity.surfaceViewWithOverlay.setLines(lines, resultStatus);
}
else
{
// The result is not stable. Show nothing
activity.surfaceViewWithOverlay.setLines(null, RecognitionServiceResultStabilityStatus.NotReady);
}
// Show the warning from the service if any. The warnings are intended for the user
// to take some action (zooming in, checking recognition language, etc.)
activity.warningTextView.Text = (warning != null ? warning.Name() : "");
if (resultStatus == RecognitionServiceResultStabilityStatus.Stable)
{
// Stable result has been reached. Stop the service
activity.stopRecognition();
activity.stableResultHasBeenReached = true;
// Show result to the user. In this sample we whiten screen background and play
// the same sound that is used for pressing buttons
activity.surfaceViewWithOverlay.setFillBackground(true);
activity.startButton.PlaySoundEffect(Android.Views.SoundEffects.Click);
}
}
}
