package com.google.zxing.client.android;
+import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import com.google.zxing.ResultPoint;
import com.google.zxing.client.android.history.HistoryManager;
import android.widget.TextView;
import java.io.IOException;
+import java.util.Vector;
+import java.util.regex.Pattern;
/**
* The barcode reader activity itself. This is loosely based on the CameraPreview
* @author dswitkin@google.com (Daniel Switkin)
*/
public final class CaptureActivity extends Activity implements SurfaceHolder.Callback {
+
private static final String TAG = "CaptureActivity";
+ private static final Pattern COMMA_PATTERN = Pattern.compile(",");
private static final int SHARE_ID = Menu.FIRST;
private static final int HISTORY_ID = Menu.FIRST + 1;
private static final String PRODUCT_SEARCH_URL_SUFFIX = "/m/products/scan";
private static final String ZXING_URL = "http://zxing.appspot.com/scan";
+ static final Vector<BarcodeFormat> PRODUCT_FORMATS;
+ static final Vector<BarcodeFormat> ONE_D_FORMATS;
+ static final Vector<BarcodeFormat> QR_CODE_FORMATS;
+ static final Vector<BarcodeFormat> ALL_FORMATS;
+
+ static {
+ PRODUCT_FORMATS = new Vector<BarcodeFormat>(5);
+ PRODUCT_FORMATS.add(BarcodeFormat.UPC_A);
+ PRODUCT_FORMATS.add(BarcodeFormat.UPC_E);
+ PRODUCT_FORMATS.add(BarcodeFormat.EAN_13);
+ PRODUCT_FORMATS.add(BarcodeFormat.EAN_8);
+ PRODUCT_FORMATS.add(BarcodeFormat.RSS14);
+ ONE_D_FORMATS = new Vector<BarcodeFormat>(PRODUCT_FORMATS.size() + 3);
+ ONE_D_FORMATS.addAll(PRODUCT_FORMATS);
+ ONE_D_FORMATS.add(BarcodeFormat.CODE_39);
+ ONE_D_FORMATS.add(BarcodeFormat.CODE_128);
+ ONE_D_FORMATS.add(BarcodeFormat.ITF);
+ QR_CODE_FORMATS = new Vector<BarcodeFormat>(1);
+ QR_CODE_FORMATS.add(BarcodeFormat.QR_CODE);
+ ALL_FORMATS = new Vector<BarcodeFormat>(ONE_D_FORMATS.size() + QR_CODE_FORMATS.size());
+ ALL_FORMATS.addAll(ONE_D_FORMATS);
+ ALL_FORMATS.addAll(QR_CODE_FORMATS);
+ }
+
private enum Source {
NATIVE_APP_INTENT,
PRODUCT_SEARCH_LINK,
private boolean copyToClipboard;
private Source source;
private String sourceUrl;
- private String decodeMode;
+ private Vector<BarcodeFormat> decodeFormats;
+ private String characterSet;
private String versionName;
private HistoryManager historyManager;
-
+
private final OnCompletionListener beepListener = new BeepListener();
private final DialogInterface.OnClickListener aboutListener =
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.zxing_url)));
+ intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
startActivity(intent);
}
};
+ ViewfinderView getViewfinderView() {
+ return viewfinderView;
+ }
+
public Handler getHandler() {
return handler;
}
@Override
public void onCreate(Bundle icicle) {
- Log.i(TAG, "Creating CaptureActivity");
super.onCreate(icicle);
Window window = getWindow();
if (action.equals(Intents.Scan.ACTION)) {
// Scan the formats the intent requested, and return the result to the calling activity.
source = Source.NATIVE_APP_INTENT;
- decodeMode = intent.getStringExtra(Intents.Scan.MODE);
+ decodeFormats = parseDecodeFormats(intent);
resetStatusView();
} else if (dataString != null && dataString.contains(PRODUCT_SEARCH_URL_PREFIX) &&
dataString.contains(PRODUCT_SEARCH_URL_SUFFIX)) {
// Scan only products and send the result to mobile Product Search.
source = Source.PRODUCT_SEARCH_LINK;
sourceUrl = dataString;
- decodeMode = Intents.Scan.PRODUCT_MODE;
+ decodeFormats = PRODUCT_FORMATS;
resetStatusView();
} else if (dataString != null && dataString.equals(ZXING_URL)) {
// Scan all formats and handle the results ourselves.
// TODO: In the future we could allow the hyperlink to include a URL to send the results to.
source = Source.ZXING_LINK;
sourceUrl = dataString;
- decodeMode = null;
+ decodeFormats = null;
resetStatusView();
} else {
// Scan all formats and handle the results ourselves (launched from Home).
source = Source.NONE;
- decodeMode = null;
+ decodeFormats = null;
resetStatusView();
}
+ characterSet = intent.getStringExtra(Intents.Scan.CHARACTER_SET);
} else {
source = Source.NONE;
- decodeMode = null;
+ decodeFormats = null;
+ characterSet = null;
if (lastResult == null) {
resetStatusView();
}
initBeepSound();
}
+ private static Vector<BarcodeFormat> parseDecodeFormats(Intent intent) {
+ String scanFormats = intent.getStringExtra(Intents.Scan.SCAN_FORMATS);
+ if (scanFormats != null) {
+ Vector<BarcodeFormat> formats = new Vector<BarcodeFormat>();
+ try {
+ for (String format : COMMA_PATTERN.split(scanFormats)) {
+ formats.add(BarcodeFormat.valueOf(format));
+ }
+ } catch (IllegalArgumentException iae) {
+ // ignore it then
+ }
+ }
+ String decodeMode = intent.getStringExtra(Intents.Scan.MODE);
+ if (decodeMode != null) {
+ if (Intents.Scan.PRODUCT_MODE.equals(decodeMode)) {
+ return PRODUCT_FORMATS;
+ }
+ if (Intents.Scan.QR_CODE_MODE.equals(decodeMode)) {
+ return QR_CODE_FORMATS;
+ }
+ if (Intents.Scan.ONE_D_MODE.equals(decodeMode)) {
+ return ONE_D_FORMATS;
+ }
+ }
+ return null;
+ }
+
@Override
protected void onPause() {
super.onPause();
return true;
} else if ((source == Source.NONE || source == Source.ZXING_LINK) && lastResult != null) {
resetStatusView();
- handler.sendEmptyMessage(R.id.restart_preview);
+ if (handler != null) {
+ handler.sendEmptyMessage(R.id.restart_preview);
+ }
return true;
}
} else if (keyCode == KeyEvent.KEYCODE_FOCUS || keyCode == KeyEvent.KEYCODE_CAMERA) {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
- menu.add(0, SHARE_ID, 0, R.string.menu_share).setIcon(R.drawable.share_menu_item);
- menu.add(0, HISTORY_ID, 0, R.string.menu_history).setIcon(android.R.drawable.ic_menu_recent_history);
+ menu.add(0, SHARE_ID, 0, R.string.menu_share)
+ .setIcon(android.R.drawable.ic_menu_share);
+ menu.add(0, HISTORY_ID, 0, R.string.menu_history)
+ .setIcon(android.R.drawable.ic_menu_recent_history);
menu.add(0, SETTINGS_ID, 0, R.string.menu_settings)
.setIcon(android.R.drawable.ic_menu_preferences);
menu.add(0, HELP_ID, 0, R.string.menu_help)
switch (item.getItemId()) {
case SHARE_ID: {
Intent intent = new Intent(Intent.ACTION_VIEW);
+ intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
intent.setClassName(this, ShareActivity.class.getName());
startActivity(intent);
break;
}
case SETTINGS_ID: {
Intent intent = new Intent(Intent.ACTION_VIEW);
+ intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
intent.setClassName(this, PreferencesActivity.class.getName());
startActivity(intent);
break;
}
case HELP_ID: {
Intent intent = new Intent(Intent.ACTION_VIEW);
+ intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
intent.setClassName(this, HelpActivity.class.getName());
startActivity(intent);
break;
// 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());
Message message = Message.obtain(handler, R.id.return_scan_result);
* run. The easiest way to do this is to check android:versionCode from the manifest, and compare
* it to a value stored as a preference.
*/
- private void showHelpOnFirstLaunch() {
+ private boolean showHelpOnFirstLaunch() {
try {
PackageInfo info = getPackageManager().getPackageInfo(PACKAGE_NAME, 0);
int currentVersion = info.versionCode;
if (currentVersion > lastVersion) {
prefs.edit().putInt(PreferencesActivity.KEY_HELP_VERSION_SHOWN, currentVersion).commit();
Intent intent = new Intent(Intent.ACTION_VIEW);
+ intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
intent.setClassName(this, HelpActivity.class.getName());
startActivity(intent);
+ return true;
}
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, e);
}
+ return false;
}
/**
*/
private void initBeepSound() {
if (playBeep && mediaPlayer == null) {
+ // The volume on STREAM_SYSTEM is not adjustable, and users found it too loud,
+ // so we now play on the music stream.
+ setVolumeControlStream(AudioManager.STREAM_MUSIC);
mediaPlayer = new MediaPlayer();
- mediaPlayer.setAudioStreamType(AudioManager.STREAM_SYSTEM);
+ mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setOnCompletionListener(beepListener);
AssetFileDescriptor file = getResources().openRawResourceFd(R.raw.beep);
CameraManager.get().openDriver(surfaceHolder);
} catch (IOException ioe) {
Log.w(TAG, ioe);
+ displayFrameworkBugMessageAndExit();
+ return;
+ } catch (RuntimeException e) {
+ // Barcode Scanner has seen crashes in the wild of this variety:
+ // java.?lang.?RuntimeException: Fail to connect to camera service
+ Log.e(TAG, e.toString());
+ displayFrameworkBugMessageAndExit();
return;
}
if (handler == null) {
boolean beginScanning = lastResult == null;
- handler = new CaptureActivityHandler(this, decodeMode, beginScanning);
+ handler = new CaptureActivityHandler(this, decodeFormats, characterSet, beginScanning);
}
}
+ 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 DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialogInterface, int i) {
+ finish();
+ }
+ });
+ builder.show();
+ }
+
private void resetStatusView() {
resultView.setVisibility(View.GONE);
statusView.setVisibility(View.VISIBLE);
projects / zxing.git / blobdiff