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Issue 112

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git-svn-id: https://zxing.googlecode.com/svn/trunk@1204 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2010-02-09 09:14:16 +00:00
parent 2e33e2289a
commit 49601e62e5
5 changed files with 95 additions and 71 deletions
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2
android/build.xml
View file

@ -202,6 +202,8 @@ limitations under the License.
<arg value="-keep class com.google.zxing.client.android.*Activity"/>
<arg value="-keep class com.google.zxing.client.android.ViewfinderView { public * ; }"/>
<arg value="-keep class com.google.zxing.client.android.book.SearchBookContents* { public * ; }"/>
<!-- This works around some strange Android/ProGuard problem verifying MaskUtil -->
<arg value="-keep class com.google.zxing.qrcode.encoder.MaskUtil { public * ; }"/>
<arg value="-target 5"/>
<arg value="-optimizationpasses 4"/>
<arg value="-dontshrink"/>

70
android/src/com/google/zxing/client/android/CaptureActivity.java
View file

@ -16,6 +16,7 @@
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;
@ -65,6 +66,8 @@ import android.widget.ImageView;
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
@ -73,7 +76,9 @@ import java.io.IOException;
* @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;
@ -91,6 +96,30 @@ public final class CaptureActivity extends Activity implements SurfaceHolder.Cal
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,
@ -111,7 +140,7 @@ public final class CaptureActivity extends Activity implements SurfaceHolder.Cal
private boolean copyToClipboard;
private Source source;
private String sourceUrl;
private String decodeMode;
private Vector<BarcodeFormat> decodeFormats;
private String versionName;
private HistoryManager historyManager;
@ -177,31 +206,31 @@ public final class CaptureActivity extends Activity implements SurfaceHolder.Cal
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();
}
} else {
source = Source.NONE;
decodeMode = null;
decodeFormats = null;
if (lastResult == null) {
resetStatusView();
}
@ -214,6 +243,33 @@ public final class CaptureActivity extends Activity implements SurfaceHolder.Cal
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();
@ -559,7 +615,7 @@ public final class CaptureActivity extends Activity implements SurfaceHolder.Cal
}
if (handler == null) {
boolean beginScanning = lastResult == null;
handler = new CaptureActivityHandler(this, decodeMode, beginScanning);
handler = new CaptureActivityHandler(this, decodeFormats, beginScanning);
}
}

7
android/src/com/google/zxing/client/android/CaptureActivityHandler.java
View file

@ -16,6 +16,7 @@
package com.google.zxing.client.android;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import android.app.Activity;
@ -26,6 +27,8 @@ import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import java.util.Vector;
/**
* This class handles all the messaging which comprises the state machine for capture.
*
@ -43,10 +46,10 @@ public final class CaptureActivityHandler extends Handler {
}
CaptureActivityHandler(CaptureActivity activity,
String decodeMode,
Vector<BarcodeFormat> decodeFormats,
boolean beginScanning) {
this.activity = activity;
decodeThread = new DecodeThread(activity, decodeMode,
decodeThread = new DecodeThread(activity, decodeFormats,
new ViewfinderResultPointCallback(activity.getViewfinderView()));
decodeThread.start();
state = State.SUCCESS;

72
android/src/com/google/zxing/client/android/DecodeThread.java
View file

@ -51,33 +51,27 @@ final class DecodeThread extends Thread {
private final MultiFormatReader multiFormatReader;
private final ResultPointCallback resultPointCallback;
DecodeThread(CaptureActivity activity, String mode, ResultPointCallback resultPointCallback) {
DecodeThread(CaptureActivity activity,
Vector<BarcodeFormat> decodeFormats,
ResultPointCallback resultPointCallback) {
this.activity = activity;
multiFormatReader = new MultiFormatReader();
this.resultPointCallback = resultPointCallback;
// The prefs can't change while the thread is running, so pick them up once here.
if (mode == null || mode.length() == 0) {
if (decodeFormats == null || decodeFormats.isEmpty()) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
boolean decode1D = prefs.getBoolean(PreferencesActivity.KEY_DECODE_1D, true);
boolean decodeQR = prefs.getBoolean(PreferencesActivity.KEY_DECODE_QR, true);
if (decode1D && decodeQR) {
setDecodeAllMode();
doSetDecodeMode(CaptureActivity.ALL_FORMATS);
} else if (decode1D) {
setDecode1DMode();
doSetDecodeMode(CaptureActivity.ONE_D_FORMATS);
} else if (decodeQR) {
setDecodeQRMode();
doSetDecodeMode(CaptureActivity.QR_CODE_FORMATS);
}
} else {
if (mode.equals(Intents.Scan.PRODUCT_MODE)) {
setDecodeProductMode();
} else if (mode.equals(Intents.Scan.ONE_D_MODE)) {
setDecode1DMode();
} else if (mode.equals(Intents.Scan.QR_CODE_MODE)) {
setDecodeQRMode();
} else {
setDecodeAllMode();
}
doSetDecodeMode(decodeFormats);
}
}
@ -104,55 +98,11 @@ final class DecodeThread extends Thread {
Looper.loop();
}
private void setDecodeProductMode() {
doSetDecodeMode(BarcodeFormat.UPC_A,
BarcodeFormat.UPC_E,
BarcodeFormat.EAN_13,
BarcodeFormat.EAN_8,
BarcodeFormat.RSS14);
}
/**
* Select the 1D formats we want this client to decode by hand.
*/
private void setDecode1DMode() {
doSetDecodeMode(BarcodeFormat.UPC_A,
BarcodeFormat.UPC_E,
BarcodeFormat.EAN_13,
BarcodeFormat.EAN_8,
BarcodeFormat.CODE_39,
BarcodeFormat.CODE_128,
BarcodeFormat.ITF,
BarcodeFormat.RSS14);
}
private void setDecodeQRMode() {
doSetDecodeMode(BarcodeFormat.QR_CODE);
}
/**
* Instead of calling setHints(null), which would allow new formats to sneak in, we
* explicitly set which formats are available.
*/
private void setDecodeAllMode() {
doSetDecodeMode(BarcodeFormat.UPC_A,
BarcodeFormat.UPC_E,
BarcodeFormat.EAN_13,
BarcodeFormat.EAN_8,
BarcodeFormat.CODE_39,
BarcodeFormat.CODE_128,
BarcodeFormat.ITF,
BarcodeFormat.RSS14,
BarcodeFormat.QR_CODE);
}
private void doSetDecodeMode(BarcodeFormat... formats) {
private void doSetDecodeMode(Vector<BarcodeFormat> vector) {
Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>(3);
Vector<BarcodeFormat> vector = new Vector<BarcodeFormat>(formats.length);
for (BarcodeFormat format : formats) {
vector.addElement(format);
if (vector != null) {
hints.put(DecodeHintType.POSSIBLE_FORMATS, vector);
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, vector);
hints.put(DecodeHintType.NEED_RESULT_POINT_CALLBACK, resultPointCallback);
multiFormatReader.setHints(hints);
}

15
android/src/com/google/zxing/client/android/Intents.java
View file

@ -36,10 +36,23 @@ public final class Intents {
/**
* By default, sending Scan.ACTION will decode all barcodes that we understand. However it
* may be useful to limit scanning to certain formats. Use Intent.putExtra(MODE, value) with
* one of the values below (optional).
* one of the values below ({@link #PRODUCT_MODE}, {@link #ONE_D_MODE}, {@link #QR_CODE_MODE}).
* Optional.
*
* Setting this is effectively shorthnad for setting explicit formats with {@link #SCAN_FORMATS}.
* It is overridden by that setting.
*/
public static final String MODE = "SCAN_MODE";
/**
* Comma-separated list of formats to scan for. The values must match the names of
* {@link com.google.zxing.BarcodeFormat}s, such as {@link com.google.zxing.BarcodeFormat#EAN_13}.
* Example: "EAN_13,EAN_8,QR_CODE"
*
* This overrides {@link #MODE}.
*/
public static final String SCAN_FORMATS = "SCAN_FORMATS";
/**
* Decode only UPC and EAN barcodes. This is the right choice for shopping apps which get
* prices, reviews, etc. for products.