2 * Copyright (C) 2008 ZXing authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.zxing.client.android;
19 import com.google.zxing.BarcodeFormat;
20 import com.google.zxing.Result;
21 import com.google.zxing.ResultPoint;
22 import com.google.zxing.client.android.history.HistoryManager;
23 import com.google.zxing.client.android.result.ResultButtonListener;
24 import com.google.zxing.client.android.result.ResultHandler;
25 import com.google.zxing.client.android.result.ResultHandlerFactory;
26 import com.google.zxing.client.android.share.ShareActivity;
28 import android.app.Activity;
29 import android.app.AlertDialog;
30 import android.content.DialogInterface;
31 import android.content.Intent;
32 import android.content.SharedPreferences;
33 import android.content.pm.PackageInfo;
34 import android.content.pm.PackageManager;
35 import android.content.res.AssetFileDescriptor;
36 import android.content.res.Configuration;
37 import android.graphics.Bitmap;
38 import android.graphics.Canvas;
39 import android.graphics.Paint;
40 import android.graphics.Rect;
41 import android.media.AudioManager;
42 import android.media.MediaPlayer;
43 import android.media.MediaPlayer.OnCompletionListener;
44 import android.net.Uri;
45 import android.os.Bundle;
46 import android.os.Handler;
47 import android.os.Message;
48 import android.os.Vibrator;
49 import android.preference.PreferenceManager;
50 import android.text.ClipboardManager;
51 import android.text.SpannableStringBuilder;
52 import android.text.style.UnderlineSpan;
53 import android.util.Log;
54 import android.view.Gravity;
55 import android.view.KeyEvent;
56 import android.view.Menu;
57 import android.view.MenuItem;
58 import android.view.SurfaceHolder;
59 import android.view.SurfaceView;
60 import android.view.View;
61 import android.view.ViewGroup;
62 import android.view.Window;
63 import android.view.WindowManager;
64 import android.widget.ImageView;
65 import android.widget.TextView;
67 import java.io.IOException;
68 import java.text.DateFormat;
69 import java.util.Date;
70 import java.util.Vector;
71 import java.util.regex.Pattern;
74 * The barcode reader activity itself. This is loosely based on the CameraPreview
75 * example included in the Android SDK.
77 * @author dswitkin@google.com (Daniel Switkin)
79 public final class CaptureActivity extends Activity implements SurfaceHolder.Callback {
81 private static final String TAG = CaptureActivity.class.getSimpleName();
83 private static final Pattern COMMA_PATTERN = Pattern.compile(",");
85 private static final int SHARE_ID = Menu.FIRST;
86 private static final int HISTORY_ID = Menu.FIRST + 1;
87 private static final int SETTINGS_ID = Menu.FIRST + 2;
88 private static final int HELP_ID = Menu.FIRST + 3;
89 private static final int ABOUT_ID = Menu.FIRST + 4;
91 private static final long INTENT_RESULT_DURATION = 1500L;
92 private static final float BEEP_VOLUME = 0.10f;
93 private static final long VIBRATE_DURATION = 200L;
95 private static final String PACKAGE_NAME = "com.google.zxing.client.android";
96 private static final String PRODUCT_SEARCH_URL_PREFIX = "http://www.google";
97 private static final String PRODUCT_SEARCH_URL_SUFFIX = "/m/products/scan";
98 private static final String ZXING_URL = "http://zxing.appspot.com/scan";
100 static final Vector<BarcodeFormat> PRODUCT_FORMATS;
101 static final Vector<BarcodeFormat> ONE_D_FORMATS;
102 static final Vector<BarcodeFormat> QR_CODE_FORMATS;
103 static final Vector<BarcodeFormat> ALL_FORMATS;
106 PRODUCT_FORMATS = new Vector<BarcodeFormat>(5);
107 PRODUCT_FORMATS.add(BarcodeFormat.UPC_A);
108 PRODUCT_FORMATS.add(BarcodeFormat.UPC_E);
109 PRODUCT_FORMATS.add(BarcodeFormat.EAN_13);
110 PRODUCT_FORMATS.add(BarcodeFormat.EAN_8);
111 //PRODUCT_FORMATS.add(BarcodeFormat.RSS14);
112 ONE_D_FORMATS = new Vector<BarcodeFormat>(PRODUCT_FORMATS.size() + 3);
113 ONE_D_FORMATS.addAll(PRODUCT_FORMATS);
114 ONE_D_FORMATS.add(BarcodeFormat.CODE_39);
115 ONE_D_FORMATS.add(BarcodeFormat.CODE_128);
116 ONE_D_FORMATS.add(BarcodeFormat.ITF);
117 QR_CODE_FORMATS = new Vector<BarcodeFormat>(1);
118 QR_CODE_FORMATS.add(BarcodeFormat.QR_CODE);
119 ALL_FORMATS = new Vector<BarcodeFormat>(ONE_D_FORMATS.size() + QR_CODE_FORMATS.size());
120 ALL_FORMATS.addAll(ONE_D_FORMATS);
121 ALL_FORMATS.addAll(QR_CODE_FORMATS);
124 private enum Source {
131 private CaptureActivityHandler handler;
133 private ViewfinderView viewfinderView;
134 private View statusView;
135 private View resultView;
136 private MediaPlayer mediaPlayer;
137 private Result lastResult;
138 private boolean hasSurface;
139 private boolean playBeep;
140 private boolean vibrate;
141 private boolean copyToClipboard;
142 private Source source;
143 private String sourceUrl;
144 private Vector<BarcodeFormat> decodeFormats;
145 private String characterSet;
146 private String versionName;
147 private HistoryManager historyManager;
149 private final OnCompletionListener beepListener = new BeepListener();
151 private final DialogInterface.OnClickListener aboutListener =
152 new DialogInterface.OnClickListener() {
153 public void onClick(DialogInterface dialogInterface, int i) {
154 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.zxing_url)));
155 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
156 startActivity(intent);
160 ViewfinderView getViewfinderView() {
161 return viewfinderView;
164 public Handler getHandler() {
169 public void onCreate(Bundle icicle) {
170 super.onCreate(icicle);
172 Window window = getWindow();
173 window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
174 setContentView(R.layout.capture);
176 CameraManager.init(getApplication());
177 viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);
178 resultView = findViewById(R.id.result_view);
179 statusView = findViewById(R.id.status_view);
183 historyManager = new HistoryManager(this);
184 historyManager.trimHistory();
186 showHelpOnFirstLaunch();
190 protected void onResume() {
193 SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
194 SurfaceHolder surfaceHolder = surfaceView.getHolder();
196 // The activity was paused but not stopped, so the surface still exists. Therefore
197 // surfaceCreated() won't be called, so init the camera here.
198 initCamera(surfaceHolder);
200 // Install the callback and wait for surfaceCreated() to init the camera.
201 surfaceHolder.addCallback(this);
202 surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
205 Intent intent = getIntent();
206 String action = intent == null ? null : intent.getAction();
207 String dataString = intent == null ? null : intent.getDataString();
208 if (intent != null && action != null) {
209 if (action.equals(Intents.Scan.ACTION)) {
210 // Scan the formats the intent requested, and return the result to the calling activity.
211 source = Source.NATIVE_APP_INTENT;
212 decodeFormats = parseDecodeFormats(intent);
214 } else if (dataString != null && dataString.contains(PRODUCT_SEARCH_URL_PREFIX) &&
215 dataString.contains(PRODUCT_SEARCH_URL_SUFFIX)) {
216 // Scan only products and send the result to mobile Product Search.
217 source = Source.PRODUCT_SEARCH_LINK;
218 sourceUrl = dataString;
219 decodeFormats = PRODUCT_FORMATS;
221 } else if (dataString != null && dataString.equals(ZXING_URL)) {
222 // Scan all formats and handle the results ourselves.
223 // TODO: In the future we could allow the hyperlink to include a URL to send the results to.
224 source = Source.ZXING_LINK;
225 sourceUrl = dataString;
226 decodeFormats = null;
229 // Scan all formats and handle the results ourselves (launched from Home).
230 source = Source.NONE;
231 decodeFormats = null;
234 characterSet = intent.getStringExtra(Intents.Scan.CHARACTER_SET);
236 source = Source.NONE;
237 decodeFormats = null;
239 if (lastResult == null) {
244 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
245 playBeep = prefs.getBoolean(PreferencesActivity.KEY_PLAY_BEEP, true);
246 vibrate = prefs.getBoolean(PreferencesActivity.KEY_VIBRATE, false);
247 copyToClipboard = prefs.getBoolean(PreferencesActivity.KEY_COPY_TO_CLIPBOARD, true);
251 private static Vector<BarcodeFormat> parseDecodeFormats(Intent intent) {
252 String scanFormats = intent.getStringExtra(Intents.Scan.SCAN_FORMATS);
253 if (scanFormats != null) {
254 Vector<BarcodeFormat> formats = new Vector<BarcodeFormat>();
256 for (String format : COMMA_PATTERN.split(scanFormats)) {
257 formats.add(BarcodeFormat.valueOf(format));
260 } catch (IllegalArgumentException iae) {
264 String decodeMode = intent.getStringExtra(Intents.Scan.MODE);
265 if (decodeMode != null) {
266 if (Intents.Scan.PRODUCT_MODE.equals(decodeMode)) {
267 return PRODUCT_FORMATS;
269 if (Intents.Scan.QR_CODE_MODE.equals(decodeMode)) {
270 return QR_CODE_FORMATS;
272 if (Intents.Scan.ONE_D_MODE.equals(decodeMode)) {
273 return ONE_D_FORMATS;
280 protected void onPause() {
282 if (handler != null) {
283 handler.quitSynchronously();
286 CameraManager.get().closeDriver();
290 public boolean onKeyDown(int keyCode, KeyEvent event) {
291 if (keyCode == KeyEvent.KEYCODE_BACK) {
292 if (source == Source.NATIVE_APP_INTENT) {
293 setResult(RESULT_CANCELED);
296 } else if ((source == Source.NONE || source == Source.ZXING_LINK) && lastResult != null) {
298 if (handler != null) {
299 handler.sendEmptyMessage(R.id.restart_preview);
303 } else if (keyCode == KeyEvent.KEYCODE_FOCUS || keyCode == KeyEvent.KEYCODE_CAMERA) {
304 // Handle these events so they don't launch the Camera app
307 return super.onKeyDown(keyCode, event);
311 public boolean onCreateOptionsMenu(Menu menu) {
312 super.onCreateOptionsMenu(menu);
313 menu.add(0, SHARE_ID, 0, R.string.menu_share)
314 .setIcon(android.R.drawable.ic_menu_share);
315 menu.add(0, HISTORY_ID, 0, R.string.menu_history)
316 .setIcon(android.R.drawable.ic_menu_recent_history);
317 menu.add(0, SETTINGS_ID, 0, R.string.menu_settings)
318 .setIcon(android.R.drawable.ic_menu_preferences);
319 menu.add(0, HELP_ID, 0, R.string.menu_help)
320 .setIcon(android.R.drawable.ic_menu_help);
321 menu.add(0, ABOUT_ID, 0, R.string.menu_about)
322 .setIcon(android.R.drawable.ic_menu_info_details);
326 // Don't display the share menu item if the result overlay is showing.
328 public boolean onPrepareOptionsMenu(Menu menu) {
329 super.onPrepareOptionsMenu(menu);
330 menu.findItem(SHARE_ID).setVisible(lastResult == null);
335 public boolean onOptionsItemSelected(MenuItem item) {
336 switch (item.getItemId()) {
338 Intent intent = new Intent(Intent.ACTION_VIEW);
339 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
340 intent.setClassName(this, ShareActivity.class.getName());
341 startActivity(intent);
345 AlertDialog historyAlert = historyManager.buildAlert();
350 Intent intent = new Intent(Intent.ACTION_VIEW);
351 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
352 intent.setClassName(this, PreferencesActivity.class.getName());
353 startActivity(intent);
357 Intent intent = new Intent(Intent.ACTION_VIEW);
358 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
359 intent.setClassName(this, HelpActivity.class.getName());
360 startActivity(intent);
364 AlertDialog.Builder builder = new AlertDialog.Builder(this);
365 builder.setTitle(getString(R.string.title_about) + versionName);
366 builder.setMessage(getString(R.string.msg_about) + "\n\n" + getString(R.string.zxing_url));
367 builder.setIcon(R.drawable.zxing_icon);
368 builder.setPositiveButton(R.string.button_open_browser, aboutListener);
369 builder.setNegativeButton(R.string.button_cancel, null);
373 return super.onOptionsItemSelected(item);
377 public void onConfigurationChanged(Configuration config) {
378 // Do nothing, this is to prevent the activity from being restarted when the keyboard opens.
379 super.onConfigurationChanged(config);
382 public void surfaceCreated(SurfaceHolder holder) {
389 public void surfaceDestroyed(SurfaceHolder holder) {
393 public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
398 * A valid barcode has been found, so give an indication of success and show the results.
400 * @param rawResult The contents of the barcode.
401 * @param barcode A greyscale bitmap of the camera data which was decoded.
403 public void handleDecode(Result rawResult, Bitmap barcode) {
404 lastResult = rawResult;
405 historyManager.addHistoryItem(rawResult);
406 if (barcode == null) {
407 // This is from history -- no saved barcode
408 handleDecodeInternally(rawResult, null);
410 playBeepSoundAndVibrate();
411 drawResultPoints(barcode, rawResult);
413 case NATIVE_APP_INTENT:
414 case PRODUCT_SEARCH_LINK:
415 handleDecodeExternally(rawResult, barcode);
419 handleDecodeInternally(rawResult, barcode);
426 * Superimpose a line for 1D or dots for 2D to highlight the key features of the barcode.
428 * @param barcode A bitmap of the captured image.
429 * @param rawResult The decoded results which contains the points to draw.
431 private void drawResultPoints(Bitmap barcode, Result rawResult) {
432 ResultPoint[] points = rawResult.getResultPoints();
433 if (points != null && points.length > 0) {
434 Canvas canvas = new Canvas(barcode);
435 Paint paint = new Paint();
436 paint.setColor(getResources().getColor(R.color.result_image_border));
437 paint.setStrokeWidth(3.0f);
438 paint.setStyle(Paint.Style.STROKE);
439 Rect border = new Rect(2, 2, barcode.getWidth() - 2, barcode.getHeight() - 2);
440 canvas.drawRect(border, paint);
442 paint.setColor(getResources().getColor(R.color.result_points));
443 if (points.length == 2) {
444 paint.setStrokeWidth(4.0f);
445 canvas.drawLine(points[0].getX(), points[0].getY(), points[1].getX(),
446 points[1].getY(), paint);
448 paint.setStrokeWidth(10.0f);
449 for (ResultPoint point : points) {
450 canvas.drawPoint(point.getX(), point.getY(), paint);
456 // Put up our own UI for how to handle the decoded contents.
457 private void handleDecodeInternally(Result rawResult, Bitmap barcode) {
458 statusView.setVisibility(View.GONE);
459 viewfinderView.setVisibility(View.GONE);
460 resultView.setVisibility(View.VISIBLE);
462 ImageView barcodeImageView = (ImageView) findViewById(R.id.barcode_image_view);
463 if (barcode == null) {
464 barcodeImageView.setImageResource(R.drawable.zxing_icon);
466 barcodeImageView.setImageBitmap(barcode);
468 barcodeImageView.setVisibility(View.VISIBLE);
470 TextView formatTextView = (TextView) findViewById(R.id.format_text_view);
471 formatTextView.setVisibility(View.VISIBLE);
472 formatTextView.setText(getString(R.string.msg_default_format) + ": " +
473 rawResult.getBarcodeFormat().toString());
475 ResultHandler resultHandler = ResultHandlerFactory.makeResultHandler(this, rawResult);
476 TextView typeTextView = (TextView) findViewById(R.id.type_text_view);
477 typeTextView.setVisibility(View.VISIBLE);
478 typeTextView.setText(getString(R.string.msg_default_type) + ": " +
479 resultHandler.getType().toString());
481 DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
482 String formattedTime = formatter.format(new Date(rawResult.getTimestamp()));
483 TextView timeTextView = (TextView) findViewById(R.id.time_text_view);
484 timeTextView.setVisibility(View.VISIBLE);
485 timeTextView.setText(getString(R.string.msg_default_time) + ": " + formattedTime);
487 TextView contentsTextView = (TextView) findViewById(R.id.contents_text_view);
488 CharSequence title = getString(resultHandler.getDisplayTitle());
489 SpannableStringBuilder styled = new SpannableStringBuilder(title + "\n\n");
490 styled.setSpan(new UnderlineSpan(), 0, title.length(), 0);
491 CharSequence displayContents = resultHandler.getDisplayContents();
492 styled.append(displayContents);
493 contentsTextView.setText(styled);
495 int buttonCount = resultHandler.getButtonCount();
496 ViewGroup buttonView = (ViewGroup) findViewById(R.id.result_button_view);
497 buttonView.requestFocus();
498 for (int x = 0; x < ResultHandler.MAX_BUTTON_COUNT; x++) {
499 TextView button = (TextView) buttonView.getChildAt(x);
500 if (x < buttonCount) {
501 button.setVisibility(View.VISIBLE);
502 button.setText(resultHandler.getButtonText(x));
503 button.setOnClickListener(new ResultButtonListener(resultHandler, x));
505 button.setVisibility(View.GONE);
509 if (copyToClipboard) {
510 ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
511 clipboard.setText(displayContents);
515 // Briefly show the contents of the barcode, then handle the result outside Barcode Scanner.
516 private void handleDecodeExternally(Result rawResult, Bitmap barcode) {
517 viewfinderView.drawResultBitmap(barcode);
519 // Since this message will only be shown for a second, just tell the user what kind of
520 // barcode was found (e.g. contact info) rather than the full contents, which they won't
521 // have time to read.
522 ResultHandler resultHandler = ResultHandlerFactory.makeResultHandler(this, rawResult);
523 TextView textView = (TextView) findViewById(R.id.status_text_view);
524 textView.setGravity(Gravity.CENTER);
525 textView.setTextSize(18.0f);
526 textView.setText(getString(resultHandler.getDisplayTitle()));
528 statusView.setBackgroundColor(getResources().getColor(R.color.transparent));
530 if (copyToClipboard) {
531 ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
532 clipboard.setText(resultHandler.getDisplayContents());
535 if (source == Source.NATIVE_APP_INTENT) {
536 // Hand back whatever action they requested - this can be changed to Intents.Scan.ACTION when
537 // the deprecated intent is retired.
538 Intent intent = new Intent(getIntent().getAction());
539 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
540 intent.putExtra(Intents.Scan.RESULT, rawResult.toString());
541 intent.putExtra(Intents.Scan.RESULT_FORMAT, rawResult.getBarcodeFormat().toString());
542 Message message = Message.obtain(handler, R.id.return_scan_result);
543 message.obj = intent;
544 handler.sendMessageDelayed(message, INTENT_RESULT_DURATION);
545 } else if (source == Source.PRODUCT_SEARCH_LINK) {
546 // Reformulate the URL which triggered us into a query, so that the request goes to the same
547 // TLD as the scan URL.
548 Message message = Message.obtain(handler, R.id.launch_product_query);
549 int end = sourceUrl.lastIndexOf("/scan");
550 message.obj = sourceUrl.substring(0, end) + "?q=" +
551 resultHandler.getDisplayContents().toString() + "&source=zxing";
552 handler.sendMessageDelayed(message, INTENT_RESULT_DURATION);
557 * We want the help screen to be shown automatically the first time a new version of the app is
558 * run. The easiest way to do this is to check android:versionCode from the manifest, and compare
559 * it to a value stored as a preference.
561 private boolean showHelpOnFirstLaunch() {
563 PackageInfo info = getPackageManager().getPackageInfo(PACKAGE_NAME, 0);
564 int currentVersion = info.versionCode;
565 // Since we're paying to talk to the PackageManager anyway, it makes sense to cache the app
566 // version name here for display in the about box later.
567 this.versionName = info.versionName;
568 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
569 int lastVersion = prefs.getInt(PreferencesActivity.KEY_HELP_VERSION_SHOWN, 0);
570 if (currentVersion > lastVersion) {
571 prefs.edit().putInt(PreferencesActivity.KEY_HELP_VERSION_SHOWN, currentVersion).commit();
572 Intent intent = new Intent(this, HelpActivity.class);
573 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
574 // Show the default page on a clean install, and the what's new page on an upgrade.
575 String page = (lastVersion == 0) ? HelpActivity.DEFAULT_PAGE : HelpActivity.WHATS_NEW_PAGE;
576 intent.putExtra(HelpActivity.REQUESTED_PAGE_KEY, page);
577 startActivity(intent);
580 } catch (PackageManager.NameNotFoundException e) {
587 * Creates the beep MediaPlayer in advance so that the sound can be triggered with the least
590 private void initBeepSound() {
591 if (playBeep && mediaPlayer == null) {
592 // The volume on STREAM_SYSTEM is not adjustable, and users found it too loud,
593 // so we now play on the music stream.
594 setVolumeControlStream(AudioManager.STREAM_MUSIC);
595 mediaPlayer = new MediaPlayer();
596 mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
597 mediaPlayer.setOnCompletionListener(beepListener);
599 AssetFileDescriptor file = getResources().openRawResourceFd(R.raw.beep);
601 mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(),
604 mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
605 mediaPlayer.prepare();
606 } catch (IOException e) {
612 private void playBeepSoundAndVibrate() {
613 if (playBeep && mediaPlayer != null) {
617 Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
618 vibrator.vibrate(VIBRATE_DURATION);
622 private void initCamera(SurfaceHolder surfaceHolder) {
624 CameraManager.get().openDriver(surfaceHolder);
625 } catch (IOException ioe) {
627 displayFrameworkBugMessageAndExit();
629 } catch (RuntimeException e) {
630 // Barcode Scanner has seen crashes in the wild of this variety:
631 // java.?lang.?RuntimeException: Fail to connect to camera service
632 Log.e(TAG, e.toString());
633 displayFrameworkBugMessageAndExit();
636 if (handler == null) {
637 boolean beginScanning = lastResult == null;
638 handler = new CaptureActivityHandler(this, decodeFormats, characterSet, beginScanning);
642 private void displayFrameworkBugMessageAndExit() {
643 AlertDialog.Builder builder = new AlertDialog.Builder(this);
644 builder.setTitle(getString(R.string.app_name));
645 builder.setMessage(getString(R.string.msg_camera_framework_bug));
646 builder.setPositiveButton(R.string.button_ok, new DialogInterface.OnClickListener() {
647 public void onClick(DialogInterface dialogInterface, int i) {
654 private void resetStatusView() {
655 resultView.setVisibility(View.GONE);
656 statusView.setVisibility(View.VISIBLE);
657 statusView.setBackgroundColor(getResources().getColor(R.color.status_view));
658 viewfinderView.setVisibility(View.VISIBLE);
660 TextView textView = (TextView) findViewById(R.id.status_text_view);
661 textView.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL);
662 textView.setTextSize(14.0f);
663 textView.setText(R.string.msg_default_status);
667 public void drawViewfinder() {
668 viewfinderView.drawViewfinder();
672 * When the beep has finished playing, rewind to queue up another one.
674 private static class BeepListener implements OnCompletionListener {
675 public void onCompletion(MediaPlayer mediaPlayer) {
676 mediaPlayer.seekTo(0);