/** Send a decode request for realtime OCR mode */
private void restartOcrPreviewAndDecode() {
// Continue capturing camera frames
cameraManager.startPreview();
// Continue requesting decode of images
cameraManager.requestOcrDecode(decodeThread.getHandler(), R.id.ocr_continuous_decode);
activity.drawViewfinder();
}
void quitSynchronously() {
setState(State.DONE);
if (cameraManager != null) {
cameraManager.stopPreview();
}
// Message quit = Message.obtain(decodeThread.getHandler(), R.id.quit);
try {
// quit.sendToTarget(); // This always gives "sending message to a Handler on a dead thread"
// Wait at most half a second; should be enough time, and onPause() will timeout quickly
decodeThread.join(500L);
} catch (InterruptedException e) {
Log.w(TAG, "Caught InterruptedException in quitSyncronously()", e);
// continue
} catch (RuntimeException e) {
Log.w(TAG, "Caught RuntimeException in quitSyncronously()", e);
// continue
} catch (Exception e) {
Log.w(TAG, "Caught unknown Exception in quitSynchronously()", e);
}
// Be absolutely sure we don't send any queued up messages
removeMessages(R.id.auto_focus);
removeMessages(R.id.ocr_continuous_decode);
removeMessages(R.id.ocr_decode);
}
CaptureActivityHandler(
CaptureActivity activity,
CameraManager cameraManager,
TessBaseAPI baseApi,
boolean isContinuousModeActive) {
this.activity = activity;
v = (Vibrator) activity.getSystemService(Context.VIBRATOR_SERVICE);
this.cameraManager = cameraManager;
// Start ourselves capturing previews (and decoding if using continuous recognition mode).
cameraManager.startPreview();
decodeThread =
new DecodeThread(
activity,
// new ViewfinderResultPointCallback(activity.getViewfinderView()),
baseApi);
decodeThread.start();
/*if (isContinuousModeActive) {
state = State.CONTINUOUS;
// Show the shutter and torch buttons
activity.setButtonVisibility(true);
// Display a "be patient" message while first recognition request is running
activity.setStatusViewForContinuous();
cameraManager.requestAutoFocus(this, R.id.auto_focus);
restartOcrPreviewAndDecode();
} else {*/
setState(State.SUCCESS);
// Show the shutter and torch buttons
activity.setButtonVisibility(true);
restartOcrPreview();
// }
}
/**
* Request autofocus from the CameraManager if we're in an appropriate state.
*
* @param message The message to deliver
*/
void requestAutofocus(int message) {
// setState(State.PREVIEW);
// if (getState() == State.PREVIEW || getState() == State.CONTINUOUS){
// if (getState() == State.PREVIEW) {
// setState(State.PREVIEW_FOCUSING);
// } else if (getState() == State.CONTINUOUS){
// setState(State.CONTINUOUS_FOCUSING);
// }
cameraManager.requestAutoFocus(this, message);
// } else {
// // If we're bumping up against a user-requested focus, enqueue another focus request,
// // otherwise stop autofocusing until the next restartOcrPreview()
// if (getState() == State.PREVIEW_FOCUSING && message == R.id.auto_focus) {
// //Log.d(TAG, "focusing now, so Requesting a new delayed autofocus");
// requestDelayedAutofocus(CaptureActivity.AUTOFOCUS_FAILURE_INTERVAL_MS, message);
// } else if (getState() == State.CONTINUOUS_FOCUSING && message == R.id.auto_focus) {
// requestDelayedAutofocus(CaptureActivity.AUTOFOCUS_FAILURE_INTERVAL_MS, message);
// } else if (message == R.id.auto_focus) {
// isAutofocusLoopStarted = false;
// }
// }
}
/** Request OCR on the current preview frame. */
private void ocrDecode() {
setState(State.PREVIEW);
cameraManager.requestOcrDecode(decodeThread.getHandler(), R.id.ocr_decode);
}