@Override
public void run() {
try {
final Camera camera = cameraManager.open(surfaceHolder, !DISABLE_CONTINUOUS_AUTOFOCUS);
final Rect framingRect = cameraManager.getFrame();
final Rect framingRectInPreview = cameraManager.getFramePreview();
runOnUiThread(
new Runnable() {
@Override
public void run() {
scannerView.setFraming(framingRect, framingRectInPreview);
}
});
final String focusMode = camera.getParameters().getFocusMode();
final boolean nonContinuousAutoFocus =
Camera.Parameters.FOCUS_MODE_AUTO.equals(focusMode)
|| Camera.Parameters.FOCUS_MODE_MACRO.equals(focusMode);
if (nonContinuousAutoFocus) cameraHandler.post(new AutoFocusRunnable(camera));
cameraHandler.post(fetchAndDecodeRunnable);
} catch (final IOException x) {
log.info("problem opening camera", x);
showDialog(DIALOG_CAMERA_PROBLEM);
} catch (final RuntimeException x) {
log.info("problem opening camera", x);
showDialog(DIALOG_CAMERA_PROBLEM);
}
}
@Override
public void run() {
cameraManager.close();
// cancel background thread
cameraHandler.removeCallbacksAndMessages(null);
cameraThread.quit();
}
@Override
public void run() {
cameraManager.requestPreviewFrame(
new PreviewCallback() {
@Override
public void onPreviewFrame(final byte[] data, final Camera camera) {
decode(data);
}
});
}
private void decode(final byte[] data) {
final PlanarYUVLuminanceSource source = cameraManager.buildLuminanceSource(data);
final BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
hints.put(
DecodeHintType.NEED_RESULT_POINT_CALLBACK,
new ResultPointCallback() {
@Override
public void foundPossibleResultPoint(final ResultPoint dot) {
runOnUiThread(
new Runnable() {
@Override
public void run() {
scannerView.addDot(dot);
}
});
}
});
final Result scanResult = reader.decode(bitmap, hints);
final int thumbnailWidth = source.getThumbnailWidth();
final int thumbnailHeight = source.getThumbnailHeight();
final float thumbnailScaleFactor = (float) thumbnailWidth / source.getWidth();
final Bitmap thumbnailImage =
Bitmap.createBitmap(thumbnailWidth, thumbnailHeight, Bitmap.Config.ARGB_8888);
thumbnailImage.setPixels(
source.renderThumbnail(), 0, thumbnailWidth, 0, 0, thumbnailWidth, thumbnailHeight);
runOnUiThread(
new Runnable() {
@Override
public void run() {
handleResult(scanResult, thumbnailImage, thumbnailScaleFactor);
}
});
} catch (final ReaderException x) {
// retry
cameraHandler.post(fetchAndDecodeRunnable);
} finally {
reader.reset();
}
}
