erpsuiteandroid/RedAnt Photo/src/com/usai/redant/photo/CaptureActivity.java

/*
 * Copyright (C) 2008 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.usai.redant.photo;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.DecodeHintType;
import com.google.zxing.Result;
import com.google.zxing.ResultPoint;
import com.google.zxing.client.result.ResultParser;
import com.usai.redant.camera.CameraManager;
import com.usai.util.dbgUtil;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.content.pm.ActivityInfo;
//import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;

/**
 * This activity opens the camera and does the actual scanning on a background
 * thread. It draws a viewfinder to help the user place the barcode correctly,
 * shows feedback as the image processing is happening, and then overlays the
 * results when a scan is successful.
 * 
 * @author dswitkin@google.com (Daniel Switkin)
 * @author Sean Owen
 */
public final class CaptureActivity extends Activity implements
		SurfaceHolder.Callback
{

	private static final String			TAG	= CaptureActivity.class
													.getSimpleName();

	// private static final long DEFAULT_INTENT_RESULT_DURATION_MS = 1500L;
	// private static final long BULK_MODE_SCAN_DELAY_MS = 1000L;

	// private static final String[] ZXING_URLS = {
	// "http://zxing.appspot.com/scan", "zxing://scan/" };

	// public static final int HISTORY_REQUEST_CODE = 0x0000bacc;

	// private static final Collection<ResultMetadataType>
	// DISPLAYABLE_METADATA_TYPES =
	// EnumSet.of(ResultMetadataType.ISSUE_NUMBER,
	// ResultMetadataType.SUGGESTED_PRICE,
	// ResultMetadataType.ERROR_CORRECTION_LEVEL,
	// ResultMetadataType.POSSIBLE_COUNTRY);

	private CameraManager				cameraManager;
	private CaptureActivityHandler		handler;
	private Result						savedResultToShow;
	private ViewfinderView				viewfinderView;
	private TextView					statusView;
	// private View resultView;
	private Result						lastResult;
	private boolean						hasSurface;
	// private boolean copyToClipboard;
	// private IntentSource source;
	// private String sourceUrl;
	// private ScanFromWebPageManager scanFromWebPageManager;
	private Collection<BarcodeFormat>	decodeFormats;
	private Map<DecodeHintType, ?>		decodeHints;
	private String						characterSet;
	// private HistoryManager historyManager;
	private InactivityTimer				inactivityTimer;
	private BeepManager					beepManager;
	private AmbientLightManager			ambientLightManager;



	ViewfinderView getViewfinderView()
	{
		return viewfinderView;
	}

	public Handler getHandler()
	{
		return handler;
	}

	CameraManager getCameraManager()
	{
		return cameraManager;
	}

	Button	swith_button;

	@Override
	public void onCreate(Bundle icicle)
	{
		dbgUtil.Logd(TAG, "==============>CaptureActivity created!");

		super.onCreate(icicle);

		Window window = getWindow();
		window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

		setContentView(R.layout.capture);

		swith_button = (Button) findViewById(R.id.btn_switch);
		swith_button.setTag("false");
		swith_button.setBackgroundColor(getResources().getColor(
				R.color.message_fail));
		swith_button.setOnClickListener(new OnClickListener()
		{

			@Override
			public void onClick(View v)
			{

				// inactivityTimer.onPause();

				if (Boolean.parseBoolean(v.getTag().toString()) == false)
				{
					// inactivityTimer.onResume();
					v.setTag("true");
					v.setBackgroundColor(getResources().getColor(
							R.color.message_success));
				}
				else
				{

					// inactivityTimer.onPause();
					v.setTag("false");
					v.setBackgroundColor(getResources().getColor(
							R.color.message_fail));
				}

			}
		});

		// setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
		hasSurface = false;
		// historyManager = new HistoryManager(this);
		// historyManager.trimHistory();
		inactivityTimer = new InactivityTimer(this);
		beepManager = new BeepManager(this);
		ambientLightManager = new AmbientLightManager(this);

		// PreferenceManager.setDefaultValues(this, R.xml.preferences, false);


		Log.d(TAG, "finish oncreate");
	}
	
	@Override
	protected void onResume()
	{
		super.onResume();

		// CameraManager must be initialized here, not in onCreate(). This is
		// necessary because we don't
		// want to open the camera driver and measure the screen size if we're
		// going to show the help on
		// first launch. That led to bugs where the scanning rectangle was the
		// wrong size and partially
		// off screen.
		cameraManager = new CameraManager(getApplication());

		viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);
		viewfinderView.setCameraManager(cameraManager);

		// resultView = findViewById(R.id.result_view);
		statusView = (TextView) findViewById(R.id.status_view);

		handler = null;
		lastResult = null;

		resetStatusView();

		SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
		SurfaceHolder surfaceHolder = surfaceView.getHolder();
		if (hasSurface)
		{
			// The activity was paused but not stopped, so the surface still
			// exists. Therefore
			// surfaceCreated() won't be called, so init the camera here.
			initCamera(surfaceHolder);
		}
		else
		{
			// Install the callback and wait for surfaceCreated() to init the
			// camera.
			surfaceHolder.addCallback(this);
		}

		beepManager.updatePrefs();
		ambientLightManager.start(cameraManager);

		inactivityTimer.onResume();

		Intent intent = getIntent();

		// SharedPreferences prefs =
		// PreferenceManager.getDefaultSharedPreferences(this);
		// copyToClipboard =
		// prefs.getBoolean(PreferencesActivity.KEY_COPY_TO_CLIPBOARD, true)
		// && (intent == null ||
		// intent.getBooleanExtra(Intents.Scan.SAVE_HISTORY, true));

		// source = IntentSource.NONE;
		decodeFormats = null;
		characterSet = null;

		if (intent != null)
		{

			String action = intent.getAction();
			// String dataString = intent.getDataString();

			if (Intents.Scan.ACTION.equals(action))
			{

				// Scan the formats the intent requested, and return the result
				// to the calling activity.
				// source = IntentSource.NATIVE_APP_INTENT;
				decodeFormats = DecodeFormatManager.parseDecodeFormats(intent);
				decodeHints = DecodeHintManager.parseDecodeHints(intent);

				if (intent.hasExtra(Intents.Scan.WIDTH)
						&& intent.hasExtra(Intents.Scan.HEIGHT))
				{
					int width = intent.getIntExtra(Intents.Scan.WIDTH, 0);
					int height = intent.getIntExtra(Intents.Scan.HEIGHT, 0);
					if (width > 0 && height > 0)
					{
						cameraManager.setManualFramingRect(width, height);
					}
				}

				String customPromptMessage = intent
						.getStringExtra(Intents.Scan.PROMPT_MESSAGE);
				if (customPromptMessage != null)
				{
					statusView.setText(customPromptMessage);
				}

			}
			// else if (dataString != null &&
			// dataString.contains("http://www.google") &&
			// dataString.contains("/m/products/scan")) {
			//
			// // Scan only products and send the result to mobile Product
			// Search.
			// // source = IntentSource.PRODUCT_SEARCH_LINK;
			// sourceUrl = dataString;
			// decodeFormats = DecodeFormatManager.PRODUCT_FORMATS;
			//
			// }
			// else if (isZXingURL(dataString)) {
			//
			// // Scan formats requested in query string (all formats if none
			// specified).
			// // If a return URL is specified, send the results there.
			// Otherwise, handle it ourselves.
			// source = IntentSource.ZXING_LINK;
			// sourceUrl = dataString;
			// Uri inputUri = Uri.parse(dataString);
			// scanFromWebPageManager = new ScanFromWebPageManager(inputUri);
			// decodeFormats = DecodeFormatManager.parseDecodeFormats(inputUri);
			// // Allow a sub-set of the hints to be specified by the caller.
			// decodeHints = DecodeHintManager.parseDecodeHints(inputUri);
			//
			// }

			characterSet = intent.getStringExtra(Intents.Scan.CHARACTER_SET);

		}
	}

	// private static boolean isZXingURL(String dataString) {
	// if (dataString == null) {
	// return false;
	// }
	// for (String url : ZXING_URLS) {
	// if (dataString.startsWith(url)) {
	// return true;
	// }
	// }
	// return false;
	// }

	@Override
	protected void onPause()
	{
		if (handler != null)
		{
			handler.quitSynchronously();
			handler = null;
		}
		inactivityTimer.onPause();
		ambientLightManager.stop();
		cameraManager.closeDriver();
		if (!hasSurface)
		{
			SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
			SurfaceHolder surfaceHolder = surfaceView.getHolder();
			surfaceHolder.removeCallback(this);
		}
		super.onPause();
	}

	@Override
	protected void onDestroy()
	{
		inactivityTimer.shutdown();
		super.onDestroy();
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event)
	{
		switch (keyCode)
		{
		// case KeyEvent.KEYCODE_BACK:
		// if (source == IntentSource.NATIVE_APP_INTENT) {
		// setResult(RESULT_CANCELED);
		// finish();
		// return true;
		// }
		// if ((source == IntentSource.NONE || source ==
		// IntentSource.ZXING_LINK) && lastResult != null) {
		// restartPreviewAfterDelay(0L);
		// return true;
		// }
		// break;
			case KeyEvent.KEYCODE_FOCUS:
			case KeyEvent.KEYCODE_CAMERA:
				// Handle these events so they don't launch the Camera app
				return true;
				// Use volume up/down to turn on light
			case KeyEvent.KEYCODE_VOLUME_DOWN:
				cameraManager.setTorch(false);
				return true;
			case KeyEvent.KEYCODE_VOLUME_UP:
				cameraManager.setTorch(true);
				return true;
		}
		return super.onKeyDown(keyCode, event);
	}

//	@Override
//	public boolean onCreateOptionsMenu(Menu menu)
//	{
//		MenuInflater menuInflater = getMenuInflater();
//		menuInflater.inflate(R.menu.capture, menu);
//		return super.onCreateOptionsMenu(menu);
//	}
//
//	@Override
//	public boolean onOptionsItemSelected(MenuItem item)
//	{
//		Intent intent = new Intent(Intent.ACTION_VIEW);
//		intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
//		switch (item.getItemId())
//		{
//		// case R.id.menu_share:
//		// intent.setClassName(this, ShareActivity.class.getName());
//		// startActivity(intent);
//		// break;
//		// case R.id.menu_history:
//		// intent.setClassName(this, HistoryActivity.class.getName());
//		// startActivityForResult(intent, HISTORY_REQUEST_CODE);
//		// break;
//			case R.id.menu_settings:
//				intent.setClassName(this, PreferencesActivity.class.getName());
//				startActivity(intent);
//				break;
//			// case R.id.menu_help:
//			// intent.setClassName(this, HelpActivity.class.getName());
//			// startActivity(intent);
//			// break;
//			default:
//				return super.onOptionsItemSelected(item);
//		}
//		return true;
//	}

	// @Override
	// public void onActivityResult(int requestCode, int resultCode, Intent
	// intent) {
	// if (resultCode == RESULT_OK) {
	// // if (requestCode == HISTORY_REQUEST_CODE)
	// // {
	// // int itemNumber = intent.getIntExtra(Intents.History.ITEM_NUMBER, -1);
	// // if (itemNumber >= 0) {
	// // HistoryItem historyItem = historyManager.buildHistoryItem(itemNumber);
	// // decodeOrStoreSavedBitmap(null, historyItem.getResult());
	// // }
	// // }
	// }
	// }

	private void decodeOrStoreSavedBitmap(Bitmap bitmap, Result result)
	{
		// Bitmap isn't used yet -- will be used soon
		if (handler == null)
		{
			savedResultToShow = result;
		}
		else
		{
			if (result != null)
			{
				savedResultToShow = result;
			}
			if (savedResultToShow != null)
			{
				Message message = Message.obtain(handler,
						R.id.decode_succeeded, savedResultToShow);
				handler.sendMessage(message);
			}
			savedResultToShow = null;
		}
	}

	@Override
	public void surfaceCreated(SurfaceHolder holder)
	{
		if (holder == null)
		{
			Log.d(TAG,
					"*** WARNING *** surfaceCreated() gave us a null surface!");
		}
		if (!hasSurface)
		{
			hasSurface = true;
			initCamera(holder);
		}
	}

	@Override
	public void surfaceDestroyed(SurfaceHolder holder)
	{
		hasSurface = false;
	}

	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height)
	{

	}

	/**
	 * A valid barcode has been found, so give an indication of success and show
	 * the results.
	 * 
	 * @param rawResult
	 *            The contents of the barcode.
	 * @param scaleFactor
	 *            amount by which thumbnail was scaled
	 * @param barcode
	 *            A greyscale bitmap of the camera data which was decoded.
	 */
	public void handleDecode(Result rawResult, Bitmap barcode, float scaleFactor)
	{
		String tag = swith_button.getTag().toString();
		if (Boolean.parseBoolean(tag) == false)
		{
			restartPreviewAfterDelay(0L);
			return;
		}
		inactivityTimer.onActivity();
		lastResult = rawResult;
		TextView debugTextView = (TextView) findViewById(R.id.textView1);
		debugTextView.setText(rawResult.getText());
		// ResultHandler resultHandler =
		// ResultHandlerFactory.makeResultHandler(this, rawResult);
		Log.i(TAG, "RESULT=========>" + rawResult.getText().toString());
		// ParsedResult result = parseResult(rawResult);
		Log.i(TAG, "HANDLER========>"
				+ ResultParser.parseResult(rawResult).getType().toString());
		boolean fromLiveScan = barcode != null;
		if (fromLiveScan)
		{
			// historyManager.addHistoryItem(rawResult, resultHandler);
			// Then not from history, so beep/vibrate and we have an image to
			// draw on
			beepManager.playBeepSoundAndVibrate();
			// drawResultPoints(barcode, scaleFactor, rawResult);
		}

		Intent result = new Intent();
		result.putExtra("pid", rawResult.getText());
		setResult(Activity.RESULT_OK, result);
		finish();
		// restartPreviewAfterDelay(1000l);
		// finish();
		//
		// switch (source) {
		// case NATIVE_APP_INTENT:
		// case PRODUCT_SEARCH_LINK:
		// handleDecodeExternally(rawResult, resultHandler, barcode);
		// break;
		// case ZXING_LINK:
		// if (scanFromWebPageManager == null ||
		// !scanFromWebPageManager.isScanFromWebPage()) {
		// handleDecodeInternally(rawResult, resultHandler, barcode);
		// } else {
		// handleDecodeExternally(rawResult, resultHandler, barcode);
		// }
		// break;
		// case NONE:
		// SharedPreferences prefs =
		// PreferenceManager.getDefaultSharedPreferences(this);
		// if (fromLiveScan &&
		// prefs.getBoolean(PreferencesActivity.KEY_BULK_MODE, false)) {
		// Toast.makeText(getApplicationContext(),
		// getResources().getString(R.string.msg_bulk_mode_scanned) + " (" +
		// rawResult.getText() + ')',
		// Toast.LENGTH_SHORT).show();
		// // Wait a moment or else it will scan the same barcode continuously
		// about 3 times
		// restartPreviewAfterDelay(BULK_MODE_SCAN_DELAY_MS);
		// } else {
		// handleDecodeInternally(rawResult, resultHandler, barcode);
		// }
		// break;
		// }
	}

	/**
	 * Superimpose a line for 1D or dots for 2D to highlight the key features of
	 * the barcode.
	 * 
	 * @param barcode
	 *            A bitmap of the captured image.
	 * @param scaleFactor
	 *            amount by which thumbnail was scaled
	 * @param rawResult
	 *            The decoded results which contains the points to draw.
	 */
	// private void drawResultPoints(Bitmap barcode, float scaleFactor,
	// Result rawResult)
	// {
	// ResultPoint[] points = rawResult.getResultPoints();
	// if (points != null && points.length > 0)
	// {
	// Canvas canvas = new Canvas(barcode);
	// Paint paint = new Paint();
	// paint.setColor(getResources().getColor(R.color.result_points));
	// if (points.length == 2)
	// {
	// paint.setStrokeWidth(4.0f);
	// drawLine(canvas, paint, points[0], points[1], scaleFactor);
	// }
	// else if (points.length == 4
	// && (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A || rawResult
	// .getBarcodeFormat() == BarcodeFormat.EAN_13))
	// {
	// // Hacky special case -- draw two lines, for the barcode and
	// // metadata
	// drawLine(canvas, paint, points[0], points[1], scaleFactor);
	// drawLine(canvas, paint, points[2], points[3], scaleFactor);
	// }
	// else
	// {
	// paint.setStrokeWidth(10.0f);
	// for (ResultPoint point : points)
	// {
	// if (point != null)
	// {
	// canvas.drawPoint(scaleFactor * point.getX(),
	// scaleFactor * point.getY(), paint);
	// }
	// }
	// }
	// }
	// }

	private static void drawLine(Canvas canvas, Paint paint, ResultPoint a,
			ResultPoint b, float scaleFactor)
	{
		if (a != null && b != null)
		{
			canvas.drawLine(scaleFactor * a.getX(), scaleFactor * a.getY(),
					scaleFactor * b.getX(), scaleFactor * b.getY(), paint);
		}
	}

	// Put up our own UI for how to handle the decoded contents.
	// private void handleDecodeInternally(Result rawResult, ResultHandler
	// resultHandler, Bitmap barcode) {
	// statusView.setVisibility(View.GONE);
	// viewfinderView.setVisibility(View.GONE);
	// // resultView.setVisibility(View.VISIBLE);
	// Log.i(TAG, "RESULT=========>"+rawResult.getText().toString());
	// Log.i(TAG, "HANDLER========>"+resultHandler.getType().toString());

	// ImageView barcodeImageView = (ImageView)
	// findViewById(R.id.barcode_image_view);
	// if (barcode == null) {
	// barcodeImageView.setImageBitmap(BitmapFactory.decodeResource(getResources(),
	// R.drawable.ic_launcher));
	// } else {
	// barcodeImageView.setImageBitmap(barcode);
	// }
	//
	// TextView formatTextView = (TextView) findViewById(R.id.format_text_view);
	// formatTextView.setText(rawResult.getBarcodeFormat().toString());
	//
	// TextView typeTextView = (TextView) findViewById(R.id.type_text_view);
	// typeTextView.setText(resultHandler.getType().toString());
	//
	// DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.SHORT,
	// DateFormat.SHORT);
	// TextView timeTextView = (TextView) findViewById(R.id.time_text_view);
	// timeTextView.setText(formatter.format(new
	// Date(rawResult.getTimestamp())));
	//
	//
	// TextView metaTextView = (TextView) findViewById(R.id.meta_text_view);
	// View metaTextViewLabel = findViewById(R.id.meta_text_view_label);
	// metaTextView.setVisibility(View.GONE);
	// metaTextViewLabel.setVisibility(View.GONE);
	// Map<ResultMetadataType,Object> metadata = rawResult.getResultMetadata();
	// if (metadata != null) {
	// StringBuilder metadataText = new StringBuilder(20);
	// for (Map.Entry<ResultMetadataType,Object> entry : metadata.entrySet()) {
	// if (DISPLAYABLE_METADATA_TYPES.contains(entry.getKey())) {
	// metadataText.append(entry.getValue()).append('\n');
	// }
	// }
	// if (metadataText.length() > 0) {
	// metadataText.setLength(metadataText.length() - 1);
	// metaTextView.setText(metadataText);
	// metaTextView.setVisibility(View.VISIBLE);
	// metaTextViewLabel.setVisibility(View.VISIBLE);
	// }
	// }
	//
	// TextView contentsTextView = (TextView)
	// findViewById(R.id.contents_text_view);
	// CharSequence displayContents = resultHandler.getDisplayContents();
	// contentsTextView.setText(displayContents);
	// // Crudely scale betweeen 22 and 32 -- bigger font for shorter text
	// int scaledSize = Math.max(22, 32 - displayContents.length() / 4);
	// contentsTextView.setTextSize(TypedValue.COMPLEX_UNIT_SP, scaledSize);
	//
	// TextView supplementTextView = (TextView)
	// findViewById(R.id.contents_supplement_text_view);
	// supplementTextView.setText("");
	// supplementTextView.setOnClickListener(null);
	// // if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean(
	// // PreferencesActivity.KEY_SUPPLEMENTAL, true)) {
	// // SupplementalInfoRetriever.maybeInvokeRetrieval(supplementTextView,
	// // resultHandler.getResult(),
	// // historyManager,
	// // this);
	// // }
	//
	// int buttonCount = resultHandler.getButtonCount();
	// ViewGroup buttonView = (ViewGroup) findViewById(R.id.result_button_view);
	// buttonView.requestFocus();
	// for (int x = 0; x < ResultHandler.MAX_BUTTON_COUNT; x++) {
	// TextView button = (TextView) buttonView.getChildAt(x);
	// if (x < buttonCount) {
	// button.setVisibility(View.VISIBLE);
	// button.setText(resultHandler.getButtonText(x));
	// button.setOnClickListener(new ResultButtonListener(resultHandler, x));
	// } else {
	// button.setVisibility(View.GONE);
	// }
	// }
	//
	// if (copyToClipboard && !resultHandler.areContentsSecure()) {
	// ClipboardInterface.setText(displayContents, this);
	// }
	// }

	// // Briefly show the contents of the barcode, then handle the result
	// outside Barcode Scanner.
	// private void handleDecodeExternally(Result rawResult, ResultHandler
	// resultHandler, Bitmap barcode) {
	//
	// if (barcode != null) {
	// viewfinderView.drawResultBitmap(barcode);
	// }
	//
	// long resultDurationMS;
	// if (getIntent() == null) {
	// resultDurationMS = DEFAULT_INTENT_RESULT_DURATION_MS;
	// } else {
	// resultDurationMS =
	// getIntent().getLongExtra(Intents.Scan.RESULT_DISPLAY_DURATION_MS,
	// DEFAULT_INTENT_RESULT_DURATION_MS);
	// }
	//
	// if (resultDurationMS > 0) {
	// String rawResultString = String.valueOf(rawResult);
	// if (rawResultString.length() > 32) {
	// rawResultString = rawResultString.substring(0, 32) + " ...";
	// }
	// statusView.setText(getString(resultHandler.getDisplayTitle()) + " : " +
	// rawResultString);
	// }
	//
	// if (copyToClipboard && !resultHandler.areContentsSecure()) {
	// CharSequence text = resultHandler.getDisplayContents();
	// ClipboardInterface.setText(text, this);
	// }
	//
	// if (source == IntentSource.NATIVE_APP_INTENT) {
	//
	// // Hand back whatever action they requested - this can be changed to
	// Intents.Scan.ACTION when
	// // the deprecated intent is retired.
	// Intent intent = new Intent(getIntent().getAction());
	// intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
	// intent.putExtra(Intents.Scan.RESULT, rawResult.toString());
	// intent.putExtra(Intents.Scan.RESULT_FORMAT,
	// rawResult.getBarcodeFormat().toString());
	// byte[] rawBytes = rawResult.getRawBytes();
	// if (rawBytes != null && rawBytes.length > 0) {
	// intent.putExtra(Intents.Scan.RESULT_BYTES, rawBytes);
	// }
	// Map<ResultMetadataType,?> metadata = rawResult.getResultMetadata();
	// if (metadata != null) {
	// if (metadata.containsKey(ResultMetadataType.UPC_EAN_EXTENSION)) {
	// intent.putExtra(Intents.Scan.RESULT_UPC_EAN_EXTENSION,
	// metadata.get(ResultMetadataType.UPC_EAN_EXTENSION).toString());
	// }
	// Number orientation = (Number)
	// metadata.get(ResultMetadataType.ORIENTATION);
	// if (orientation != null) {
	// intent.putExtra(Intents.Scan.RESULT_ORIENTATION, orientation.intValue());
	// }
	// String ecLevel = (String)
	// metadata.get(ResultMetadataType.ERROR_CORRECTION_LEVEL);
	// if (ecLevel != null) {
	// intent.putExtra(Intents.Scan.RESULT_ERROR_CORRECTION_LEVEL, ecLevel);
	// }
	// @SuppressWarnings("unchecked")
	// Iterable<byte[]> byteSegments = (Iterable<byte[]>)
	// metadata.get(ResultMetadataType.BYTE_SEGMENTS);
	// if (byteSegments != null) {
	// int i = 0;
	// for (byte[] byteSegment : byteSegments) {
	// intent.putExtra(Intents.Scan.RESULT_BYTE_SEGMENTS_PREFIX + i,
	// byteSegment);
	// i++;
	// }
	// }
	// }
	// sendReplyMessage(R.id.return_scan_result, intent, resultDurationMS);
	//
	// } else if (source == IntentSource.PRODUCT_SEARCH_LINK) {
	//
	// // Reformulate the URL which triggered us into a query, so that the
	// request goes to the same
	// // TLD as the scan URL.
	// int end = sourceUrl.lastIndexOf("/scan");
	// String replyURL = sourceUrl.substring(0, end) + "?q=" +
	// resultHandler.getDisplayContents() + "&source=zxing";
	// sendReplyMessage(R.id.launch_product_query, replyURL, resultDurationMS);
	//
	// } else if (source == IntentSource.ZXING_LINK) {
	//
	// if (scanFromWebPageManager != null &&
	// scanFromWebPageManager.isScanFromWebPage()) {
	// String replyURL = scanFromWebPageManager.buildReplyURL(rawResult,
	// resultHandler);
	// sendReplyMessage(R.id.launch_product_query, replyURL, resultDurationMS);
	// }
	//
	// }
	// }

	// private void sendReplyMessage(int id, Object arg, long delayMS) {
	// if (handler != null) {
	// Message message = Message.obtain(handler, id, arg);
	// if (delayMS > 0L) {
	// handler.sendMessageDelayed(message, delayMS);
	// } else {
	// handler.sendMessage(message);
	// }
	// }
	// }

	private void initCamera(SurfaceHolder surfaceHolder)
	{
		if (surfaceHolder == null)
		{
			throw new IllegalStateException("No SurfaceHolder provided");
		}
		if (cameraManager.isOpen())
		{
			Log.w(TAG,
					"initCamera() while already open -- late SurfaceView callback?");
			return;
		}
		try
		{
			cameraManager.openDriver(surfaceHolder);
			// Creating the handler starts the preview, which can also throw a
			// RuntimeException.
			if (handler == null)
			{
				handler = new CaptureActivityHandler(this, decodeFormats,
						decodeHints, characterSet, cameraManager);
			}
			decodeOrStoreSavedBitmap(null, null);
		}
		catch (IOException ioe)
		{
			Log.w(TAG, ioe);
			displayFrameworkBugMessageAndExit();
		}
		catch (RuntimeException e)
		{
			// Barcode Scanner has seen crashes in the wild of this variety:
			// java.?lang.?RuntimeException: Fail to connect to camera service
			Log.w(TAG, "Unexpected error initializing camera", e);
			displayFrameworkBugMessageAndExit();
		}
	}

	private void displayFrameworkBugMessageAndExit()
	{
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle(getString(R.string.app_name));
		builder.setMessage(getString(R.string.msg_camera_framework_bug));
		builder.setPositiveButton(R.string.button_ok, new FinishListener(this));
		builder.setOnCancelListener(new FinishListener(this));
		builder.show();
	}

	public void restartPreviewAfterDelay(long delayMS)
	{
		if (handler != null)
		{
			handler.sendEmptyMessageDelayed(R.id.decode_failed, delayMS);
		}
		resetStatusView();
	}

	private void resetStatusView()
	{
		// resultView.setVisibility(View.GONE);
		statusView.setText(R.string.msg_default_status);
		statusView.setVisibility(View.VISIBLE);
		viewfinderView.setVisibility(View.VISIBLE);
		lastResult = null;
	}

	public void drawViewfinder()
	{
		viewfinderView.drawViewfinder();
	}
}