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Code Issues 1 Projects Releases Wiki Activity

Update to latest zxing QR code scanner.

Browse source 
Closes #2078

// FREEBIE
This commit is contained in:
Moxie Marlinspike 2014-11-22 09:47:02 -08:00
parent 31eddbf346
commit d42c4229fd
4 changed files with 10 additions and 339 deletions
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2
build.gradle
View file

@ -38,6 +38,7 @@ dependencies {
compile 'com.github.chrisbanes.photoview:library:1.2.3'
compile 'com.android.support:appcompat-v7:21.0.2'
compile 'com.madgag.spongycastle:prov:1.51.0.0'
compile 'com.google.zxing:android-integration:3.1.0'
compile ('com.android.support:support-v4-preferencefragment:1.0.0@aar'){
exclude module: 'support-v4'
}
@ -62,6 +63,7 @@ dependencyVerification {
'com.github.chrisbanes.photoview:library:8b5344e206f125e7ba9d684008f36c4992d03853c57e5814125f88496126e3cc',
'com.android.support:appcompat-v7:b760fd3d0b0b0547a1bcef9031b40939f31049ba955f04c8fdc5aa09a25d19e9',
'com.madgag.spongycastle:prov:b8c3fec3a59aac1aa04ccf4dad7179351e54ef7672f53f508151b614c131398a',
'com.google.zxing:android-integration:89e56aadf1164bd71e57949163c53abf90af368b51669c0d4a47a163335f95c4',
'com.android.support:support-v4-preferencefragment:5470f5872514a6226fa1fc6f4e000991f38805691c534cf0bd2778911fc773ad',
'com.squareup.dagger:dagger:789aca24537022e49f91fc6444078d9de8f1dd99e1bfb090f18491b186967883',
'com.madgag.spongycastle:core:8d6240b974b0aca4d3da9c7dd44d42339d8a374358aca5fc98e50a995764511f',

285
libtextsecure/src/main/java/org/whispersystems/textsecure/zxing/integration/IntentIntegrator.java
View file

@ -1,285 +0,0 @@
/*
* Copyright 2009 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 org.whispersystems.textsecure.zxing.integration;
import android.app.AlertDialog;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
/**
* <p>A utility class which helps ease integration with Barcode Scanner via {@link Intent}s. This is a simple
* way to invoke barcode scanning and receive the result, without any need to integrate, modify, or learn the
* project's source code.</p>
*
* <h2>Initiating a barcode scan</h2>
*
* <p>Integration is essentially as easy as calling {@link #initiateScan(Activity)} and waiting
* for the result in your app.</p>
*
* <p>It does require that the Barcode Scanner application is installed. The
* {@link #initiateScan(Activity)} method will prompt the user to download the application, if needed.</p>
*
* <p>There are a few steps to using this integration. First, your {@link Activity} must implement
* the method {@link Activity#onActivityResult(int, int, Intent)} and include a line of code like this:</p>
*
* <p>{@code
* public void onActivityResult(int requestCode, int resultCode, Intent intent) {
* IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
* if (scanResult != null) {
* // handle scan result
* }
* // else continue with any other code you need in the method
* ...
* }
* }</p>
*
* <p>This is where you will handle a scan result.
* Second, just call this in response to a user action somewhere to begin the scan process:</p>
*
* <p>{@code IntentIntegrator.initiateScan(yourActivity);}</p>
*
* <p>You can use {@link #initiateScan(Activity, CharSequence, CharSequence, CharSequence, CharSequence)} or
* {@link #initiateScan(Activity, int, int, int, int)} to customize the download prompt with
* different text labels.</p>
*
* <p>Note that {@link #initiateScan(Activity)} returns an {@link AlertDialog} which is non-null if the
* user was prompted to download the application. This lets the calling app potentially manage the dialog.
* In particular, ideally, the app dismisses the dialog if it's still active in its {@link Activity#onPause()}
* method.</p>
*
* <h2>Sharing text via barcode</h2>
*
* <p>To share text, encoded as a QR Code on-screen, similarly, see {@link #shareText(Activity, CharSequence)}.</p>
*
* <p>Some code, particularly download integration, was contributed from the Anobiit application.</p>
*
* @author Sean Owen
* @author Fred Lin
* @author Isaac Potoczny-Jones
* @author Brad Drehmer
*/
public final class IntentIntegrator {
public static final int REQUEST_CODE = 0x0ba7c0de; // get it?
public static final String DEFAULT_TITLE = "Install Barcode Scanner?";
public static final String DEFAULT_MESSAGE =
"This application requires Barcode Scanner. Would you like to install it?";
public static final String DEFAULT_YES = "Yes";
public static final String DEFAULT_NO = "No";
// supported barcode formats
public static final String PRODUCT_CODE_TYPES = "UPC_A,UPC_E,EAN_8,EAN_13";
public static final String ONE_D_CODE_TYPES = PRODUCT_CODE_TYPES + ",CODE_39,CODE_93,CODE_128";
public static final String QR_CODE_TYPES = "QR_CODE";
public static final String ALL_CODE_TYPES = null;
private IntentIntegrator() {
}
/**
* See {@link #initiateScan(Activity, CharSequence, CharSequence, CharSequence, CharSequence)} --
* same, but uses default English labels.
*/
public static AlertDialog initiateScan(Activity activity) {
return initiateScan(activity, DEFAULT_TITLE, DEFAULT_MESSAGE, DEFAULT_YES, DEFAULT_NO);
}
/**
* See {@link #initiateScan(Activity, CharSequence, CharSequence, CharSequence, CharSequence)} --
* same, but takes string IDs which refer
* to the {@link Activity}'s resource bundle entries.
*/
public static AlertDialog initiateScan(Activity activity,
int stringTitle,
int stringMessage,
int stringButtonYes,
int stringButtonNo) {
return initiateScan(activity,
activity.getString(stringTitle),
activity.getString(stringMessage),
activity.getString(stringButtonYes),
activity.getString(stringButtonNo));
}
/**
* See {@link #initiateScan(Activity, CharSequence, CharSequence, CharSequence, CharSequence, CharSequence)} --
* same, but scans for all supported barcode types.
* @param stringTitle title of dialog prompting user to download Barcode Scanner
* @param stringMessage text of dialog prompting user to download Barcode Scanner
* @param stringButtonYes text of button user clicks when agreeing to download
* Barcode Scanner (e.g. "Yes")
* @param stringButtonNo text of button user clicks when declining to download
* Barcode Scanner (e.g. "No")
* @return an {@link AlertDialog} if the user was prompted to download the app,
* null otherwise
*/
public static AlertDialog initiateScan(Activity activity,
CharSequence stringTitle,
CharSequence stringMessage,
CharSequence stringButtonYes,
CharSequence stringButtonNo) {
return initiateScan(activity,
stringTitle,
stringMessage,
stringButtonYes,
stringButtonNo,
ALL_CODE_TYPES);
}
/**
* Invokes scanning.
*
* @param stringTitle title of dialog prompting user to download Barcode Scanner
* @param stringMessage text of dialog prompting user to download Barcode Scanner
* @param stringButtonYes text of button user clicks when agreeing to download
* Barcode Scanner (e.g. "Yes")
* @param stringButtonNo text of button user clicks when declining to download
* Barcode Scanner (e.g. "No")
* @param stringDesiredBarcodeFormats a comma separated list of codes you would
* like to scan for.
* @return an {@link AlertDialog} if the user was prompted to download the app,
* null otherwise
* @throws InterruptedException if timeout expires before a scan completes
*/
public static AlertDialog initiateScan(Activity activity,
CharSequence stringTitle,
CharSequence stringMessage,
CharSequence stringButtonYes,
CharSequence stringButtonNo,
CharSequence stringDesiredBarcodeFormats) {
Intent intentScan = new Intent("com.google.zxing.client.android.SCAN");
intentScan.addCategory(Intent.CATEGORY_DEFAULT);
// check which types of codes to scan for
if (stringDesiredBarcodeFormats != null) {
// set the desired barcode types
intentScan.putExtra("SCAN_FORMATS", stringDesiredBarcodeFormats);
}
try {
activity.startActivityForResult(intentScan, REQUEST_CODE);
return null;
} catch (ActivityNotFoundException e) {
return showDownloadDialog(activity, stringTitle, stringMessage, stringButtonYes, stringButtonNo);
}
}
private static AlertDialog showDownloadDialog(final Activity activity,
CharSequence stringTitle,
CharSequence stringMessage,
CharSequence stringButtonYes,
CharSequence stringButtonNo) {
AlertDialog.Builder downloadDialog = new AlertDialog.Builder(activity);
downloadDialog.setTitle(stringTitle);
downloadDialog.setMessage(stringMessage);
downloadDialog.setPositiveButton(stringButtonYes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
Uri uri = Uri.parse("market://search?q=pname:com.google.zxing.client.android");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
activity.startActivity(intent);
}
});
downloadDialog.setNegativeButton(stringButtonNo, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {}
});
return downloadDialog.show();
}
/**
* <p>Call this from your {@link Activity}'s
* {@link Activity#onActivityResult(int, int, Intent)} method.</p>
*
* @return null if the event handled here was not related to {@link IntentIntegrator}, or
* else an {@link IntentResult} containing the result of the scan. If the user cancelled scanning,
* the fields will be null.
*/
public static IntentResult parseActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == REQUEST_CODE) {
if (resultCode == Activity.RESULT_OK) {
String contents = intent.getStringExtra("SCAN_RESULT");
String formatName = intent.getStringExtra("SCAN_RESULT_FORMAT");
return new IntentResult(contents, formatName);
} else {
return new IntentResult(null, null);
}
}
return null;
}
/**
* See {@link #shareText(Activity, CharSequence, CharSequence, CharSequence, CharSequence, CharSequence)} --
* same, but uses default English labels.
*/
public static void shareText(Activity activity, CharSequence text) {
shareText(activity, text, DEFAULT_TITLE, DEFAULT_MESSAGE, DEFAULT_YES, DEFAULT_NO);
}
/**
* See {@link #shareText(Activity, CharSequence, CharSequence, CharSequence, CharSequence, CharSequence)} --
* same, but takes string IDs which refer to the {@link Activity}'s resource bundle entries.
*/
public static void shareText(Activity activity,
CharSequence text,
int stringTitle,
int stringMessage,
int stringButtonYes,
int stringButtonNo) {
shareText(activity,
text,
activity.getString(stringTitle),
activity.getString(stringMessage),
activity.getString(stringButtonYes),
activity.getString(stringButtonNo));
}
/**
* Shares the given text by encoding it as a barcode, such that another user can
* scan the text off the screen of the device.
*
* @param text the text string to encode as a barcode
* @param stringTitle title of dialog prompting user to download Barcode Scanner
* @param stringMessage text of dialog prompting user to download Barcode Scanner
* @param stringButtonYes text of button user clicks when agreeing to download
* Barcode Scanner (e.g. "Yes")
* @param stringButtonNo text of button user clicks when declining to download
* Barcode Scanner (e.g. "No")
*/
public static void shareText(Activity activity,
CharSequence text,
CharSequence stringTitle,
CharSequence stringMessage,
CharSequence stringButtonYes,
CharSequence stringButtonNo) {
Intent intent = new Intent();
intent.setAction("com.google.zxing.client.android.ENCODE");
intent.putExtra("ENCODE_TYPE", "TEXT_TYPE");
intent.putExtra("ENCODE_DATA", text);
try {
activity.startActivity(intent);
} catch (ActivityNotFoundException e) {
showDownloadDialog(activity, stringTitle, stringMessage, stringButtonYes, stringButtonNo);
}
}
}

48
libtextsecure/src/main/java/org/whispersystems/textsecure/zxing/integration/IntentResult.java
View file

@ -1,48 +0,0 @@
/*
* Copyright 2009 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 org.whispersystems.textsecure.zxing.integration;
/**
* <p>Encapsulates the result of a barcode scan invoked through {@link IntentIntegrator}.</p>
*
* @author Sean Owen
*/
public final class IntentResult {
private final String contents;
private final String formatName;
IntentResult(String contents, String formatName) {
this.contents = contents;
this.formatName = formatName;
}
/**
* @return raw content of barcode
*/
public String getContents() {
return contents;
}
/**
* @return name of format, like "QR_CODE", "UPC_A". See <code>BarcodeFormat</code> for more format names.
*/
public String getFormatName() {
return formatName;
}
}

14
src/org/thoughtcrime/securesms/KeyScanningActivity.java
View file

@ -23,13 +23,13 @@ import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.Toast;
import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;
import org.thoughtcrime.securesms.util.Base64;
import org.whispersystems.libaxolotl.IdentityKey;
import org.thoughtcrime.securesms.util.Dialogs;
import org.thoughtcrime.securesms.util.DynamicTheme;
import org.whispersystems.textsecure.zxing.integration.IntentIntegrator;
import org.whispersystems.textsecure.zxing.integration.IntentResult;
import org.whispersystems.libaxolotl.IdentityKey;
/**
* Activity for initiating/receiving key QR code scans.
@ -99,11 +99,13 @@ public abstract class KeyScanningActivity extends PassphraseRequiredActionBarAct
}
protected void initiateScan() {
IntentIntegrator.initiateScan(this);
IntentIntegrator intentIntegrator = new IntentIntegrator(this);
intentIntegrator.initiateScan();
}
protected void initiateDisplay() {
IntentIntegrator.shareText(this, Base64.encodeBytes(getIdentityKeyToDisplay().serialize()));
IntentIntegrator intentIntegrator = new IntentIntegrator(this);
intentIntegrator.shareText(Base64.encodeBytes(getIdentityKeyToDisplay().serialize()));
}
protected abstract String getScanString();