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将ZXing库直接集成到我的Android应用程序中

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133

我只是在绝望中写这篇文章:)我被指派为Android 1.6手机制作一个独立的条形码扫描仪(作为概念证明) .

为此,我发现了ZXing库 .

我用谷歌搜索,在StackOverflow上阅读相关主题,使用常见的等等 . 似乎没有任何帮助,我只是不能在这个精神封锁上打个洞:/

我知道可以使用lib,并创建自己的独立条形码扫描仪 . 我读过使用Zxing人提供的“条码扫描器”,这是迄今为止最简单的解决方案(通过Intent) . 不幸的是,这不是一个选项,需要一个独立的应用程序 .

总结一下我的问题:

  • 如何通过Eclipse将ZXing源库集成到我的Android代码项目中?

  • 当集成时...如何利用lib,来扫描功能"load"?

  • 步骤指南几乎是首选,因为我刚开始在Eclipse中工作 .

我试图让我的代码项目依赖于ZXing源文件夹中的Android文件夹 . 当我这样做时,会出现一些错误,主要涉及'org.apache'(??)

我只是想不出来......所以一些提示将是最有帮助的 .

提前谢谢:)

15 回答

  • 2

    compile 'com.google.zxing:core:2.3.0'
    

    进入Gradle依赖项 . 就这么简单 . 在使用Android Studio和Gradle构建系统之前 .

  • 2

    如果您只需要zxing的core.jar,则可以跳过该过程并从GettingStarted wiki page获取预构建的JAR

    最新的ZXing(2.2)在core文件夹下没有core.jar但是你可以从zxing获得core.jar Maven repository here

  • 124

    更新! - 已解决的指南

    我已经设法弄明白:)在下面你可以阅读逐步指南,所以它希望可以帮助其他人遇到与我相同的问题;)

    • 安装Apache Ant - (See this YouTube video for config help

    • 从ZXing主页下载ZXing源并解压缩

    • 使用Windows命令行(Run-> CMD)导航到下载的 zxing src 的根目录 .

    • 在命令行窗口中 - 输入 ant -f core/build.xml 按回车键让Apache运行它的魔力[having issues?]

    • 根据您刚提取的目录中的android文件夹输入Eclipse - > new Android Project

    • 右键单击项目文件夹 - >属性 - > Java构建路径 - >库 - >添加外部JAR ...

    • 导航到新解压缩的文件夹并打开核心目录并选择 core.jar ...点击回车!

    现在您只需更正翻译和AndroidManifest.xml文件中的一些错误:)现在您可以愉快地编译,现在您将拥有一个基于ZXing源的独立条码扫描器应用程序;)

    快乐的编码人 - 我希望它可以帮助别人:)

  • 2

    以下是如何使用ZXing库生成和显示QR代码的分步指南,无需安装第三方应用程序 . Note: 您不必使用ANT或任何其他构建工具构建ZXing . 文件 core.jar 在已发布的zip存档中可用(如下所示) .

    • 下载latest release of ZXing . - ( ZXing-*.zip

    • 解压缩此zip存档并在 core/ 目录下找到 core.jar .

    • 如果您使用的是Eclipse IDE,请将 core.jar 拖放到Android项目的 libs 目录中 . 询问时,选择复制 .

    • 将下面给出的两个类( Contents.javaQRCodeEncoder.java )复制到Android项目的主程序包中 .

    • 在您的活动中创建一个 ImageView 项目,如果您还没有生成的二维码,则显示生成的二维码 . 下面给出一个例子:

    • 使用下面的代码片段以位图格式生成QR码并将其显示在 ImageView 中 .

    这是要添加到Activity布局XML文件的 ImageView 元素:

    <ImageView 
        android:id="@+id/qrCode"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp"
        android:layout_centerHorizontal="true"/>
    

    代码段:

    // ImageView to display the QR code in.  This should be defined in 
    // your Activity's XML layout file
    ImageView imageView = (ImageView) findViewById(R.id.qrCode);
    
    String qrData = "Data I want to encode in QR code";
    int qrCodeDimention = 500;
    
    QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(qrData, null,
            Contents.Type.TEXT, BarcodeFormat.QR_CODE.toString(), qrCodeDimention);
    
    try {
        Bitmap bitmap = qrCodeEncoder.encodeAsBitmap();
        imageView.setImageBitmap(bitmap);
    } catch (WriterException e) {
        e.printStackTrace();
    }
    

    这是 Contents.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.
    // 
    
    import android.provider.ContactsContract;
    
    public final class Contents {
        private Contents() {
        }
    
        public static final class Type {
    
         // Plain text. Use Intent.putExtra(DATA, string). This can be used for URLs too, but string
         // must include "http://" or "https://".
            public static final String TEXT = "TEXT_TYPE";
    
            // An email type. Use Intent.putExtra(DATA, string) where string is the email address.
            public static final String EMAIL = "EMAIL_TYPE";
    
            // Use Intent.putExtra(DATA, string) where string is the phone number to call.
            public static final String PHONE = "PHONE_TYPE";
    
            // An SMS type. Use Intent.putExtra(DATA, string) where string is the number to SMS.
            public static final String SMS = "SMS_TYPE";
    
            public static final String CONTACT = "CONTACT_TYPE";
    
            public static final String LOCATION = "LOCATION_TYPE";
    
            private Type() {
            }
        }
    
        public static final String URL_KEY = "URL_KEY";
    
        public static final String NOTE_KEY = "NOTE_KEY";
    
        // When using Type.CONTACT, these arrays provide the keys for adding or retrieving multiple phone numbers and addresses.
        public static final String[] PHONE_KEYS = {
                ContactsContract.Intents.Insert.PHONE, ContactsContract.Intents.Insert.SECONDARY_PHONE,
                ContactsContract.Intents.Insert.TERTIARY_PHONE
        };
    
        public static final String[] PHONE_TYPE_KEYS = {
                ContactsContract.Intents.Insert.PHONE_TYPE,
                ContactsContract.Intents.Insert.SECONDARY_PHONE_TYPE,
                ContactsContract.Intents.Insert.TERTIARY_PHONE_TYPE
        };
    
        public static final String[] EMAIL_KEYS = {
                ContactsContract.Intents.Insert.EMAIL, ContactsContract.Intents.Insert.SECONDARY_EMAIL,
                ContactsContract.Intents.Insert.TERTIARY_EMAIL
        };
    
        public static final String[] EMAIL_TYPE_KEYS = {
                ContactsContract.Intents.Insert.EMAIL_TYPE,
                ContactsContract.Intents.Insert.SECONDARY_EMAIL_TYPE,
                ContactsContract.Intents.Insert.TERTIARY_EMAIL_TYPE
        };
    }
    

    QRCodeEncoder.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.
     */
    
    import android.provider.ContactsContract;
    import android.graphics.Bitmap;
    import android.os.Bundle;
    import android.telephony.PhoneNumberUtils;
    
    import java.util.Collection;
    import java.util.EnumMap;
    import java.util.HashSet;
    import java.util.Map;
    
    import com.google.zxing.BarcodeFormat;
    import com.google.zxing.EncodeHintType;
    import com.google.zxing.MultiFormatWriter;
    import com.google.zxing.WriterException;
    import com.google.zxing.common.BitMatrix;
    
    public final class QRCodeEncoder {
        private static final int WHITE = 0xFFFFFFFF;
        private static final int BLACK = 0xFF000000;
    
        private int dimension = Integer.MIN_VALUE;
        private String contents = null;
        private String displayContents = null;
        private String title = null;
        private BarcodeFormat format = null;
        private boolean encoded = false;
    
        public QRCodeEncoder(String data, Bundle bundle, String type, String format, int dimension) {
            this.dimension = dimension;
            encoded = encodeContents(data, bundle, type, format);
        }
    
        public String getContents() {
            return contents;
        }
    
        public String getDisplayContents() {
            return displayContents;
        }
    
        public String getTitle() {
            return title;
        }
    
        private boolean encodeContents(String data, Bundle bundle, String type, String formatString) {
            // Default to QR_CODE if no format given.
            format = null;
            if (formatString != null) {
                try {
                    format = BarcodeFormat.valueOf(formatString);
                } catch (IllegalArgumentException iae) {
                    // Ignore it then
                }
            }
            if (format == null || format == BarcodeFormat.QR_CODE) {
                this.format = BarcodeFormat.QR_CODE;
                encodeQRCodeContents(data, bundle, type);
            } else if (data != null && data.length() > 0) {
                contents = data;
                displayContents = data;
                title = "Text";
            }
            return contents != null && contents.length() > 0;
        }
    
        private void encodeQRCodeContents(String data, Bundle bundle, String type) {
            if (type.equals(Contents.Type.TEXT)) {
                if (data != null && data.length() > 0) {
                    contents = data;
                    displayContents = data;
                    title = "Text";
                }
            } else if (type.equals(Contents.Type.EMAIL)) {
                data = trim(data);
                if (data != null) {
                    contents = "mailto:" + data;
                    displayContents = data;
                    title = "E-Mail";
                }
            } else if (type.equals(Contents.Type.PHONE)) {
                data = trim(data);
                if (data != null) {
                    contents = "tel:" + data;
                    displayContents = PhoneNumberUtils.formatNumber(data);
                    title = "Phone";
                }
            } else if (type.equals(Contents.Type.SMS)) {
                data = trim(data);
                if (data != null) {
                    contents = "sms:" + data;
                    displayContents = PhoneNumberUtils.formatNumber(data);
                    title = "SMS";
                }
            } else if (type.equals(Contents.Type.CONTACT)) {
                if (bundle != null) {
                    StringBuilder newContents = new StringBuilder(100);
                    StringBuilder newDisplayContents = new StringBuilder(100);
    
                    newContents.append("MECARD:");
    
                    String name = trim(bundle.getString(ContactsContract.Intents.Insert.NAME));
                    if (name != null) {
                        newContents.append("N:").append(escapeMECARD(name)).append(';');
                        newDisplayContents.append(name);
                    }
    
                    String address = trim(bundle.getString(ContactsContract.Intents.Insert.POSTAL));
                    if (address != null) {
                        newContents.append("ADR:").append(escapeMECARD(address)).append(';');
                        newDisplayContents.append('\n').append(address);
                    }
    
                    Collection<String> uniquePhones = new HashSet<String>(Contents.PHONE_KEYS.length);
                    for (int x = 0; x < Contents.PHONE_KEYS.length; x++) {
                        String phone = trim(bundle.getString(Contents.PHONE_KEYS[x]));
                        if (phone != null) {
                            uniquePhones.add(phone);
                        }
                    }
                    for (String phone : uniquePhones) {
                        newContents.append("TEL:").append(escapeMECARD(phone)).append(';');
                        newDisplayContents.append('\n').append(PhoneNumberUtils.formatNumber(phone));
                    }
    
                    Collection<String> uniqueEmails = new HashSet<String>(Contents.EMAIL_KEYS.length);
                    for (int x = 0; x < Contents.EMAIL_KEYS.length; x++) {
                        String email = trim(bundle.getString(Contents.EMAIL_KEYS[x]));
                        if (email != null) {
                            uniqueEmails.add(email);
                        }
                    }
                    for (String email : uniqueEmails) {
                        newContents.append("EMAIL:").append(escapeMECARD(email)).append(';');
                        newDisplayContents.append('\n').append(email);
                    }
    
                    String url = trim(bundle.getString(Contents.URL_KEY));
                    if (url != null) {
                        // escapeMECARD(url) -> wrong escape e.g. http\://zxing.google.com
                        newContents.append("URL:").append(url).append(';');
                        newDisplayContents.append('\n').append(url);
                    }
    
                    String note = trim(bundle.getString(Contents.NOTE_KEY));
                    if (note != null) {
                        newContents.append("NOTE:").append(escapeMECARD(note)).append(';');
                        newDisplayContents.append('\n').append(note);
                    }
    
                    // Make sure we've encoded at least one field.
                    if (newDisplayContents.length() > 0) {
                        newContents.append(';');
                        contents = newContents.toString();
                        displayContents = newDisplayContents.toString();
                        title = "Contact";
                    } else {
                        contents = null;
                        displayContents = null;
                    }
    
                }
            } else if (type.equals(Contents.Type.LOCATION)) {
                if (bundle != null) {
                    // These must use Bundle.getFloat(), not getDouble(), it's part of the API.
                    float latitude = bundle.getFloat("LAT", Float.MAX_VALUE);
                    float longitude = bundle.getFloat("LONG", Float.MAX_VALUE);
                    if (latitude != Float.MAX_VALUE && longitude != Float.MAX_VALUE) {
                        contents = "geo:" + latitude + ',' + longitude;
                        displayContents = latitude + "," + longitude;
                        title = "Location";
                    }
                }
            }
        }
    
        public Bitmap encodeAsBitmap() throws WriterException {
            if (!encoded) return null;
    
            Map<EncodeHintType, Object> hints = null;
            String encoding = guessAppropriateEncoding(contents);
            if (encoding != null) {
                hints = new EnumMap<EncodeHintType, Object>(EncodeHintType.class);
                hints.put(EncodeHintType.CHARACTER_SET, encoding);
            }
            MultiFormatWriter writer = new MultiFormatWriter();
            BitMatrix result = writer.encode(contents, format, dimension, dimension, hints);
            int width = result.getWidth();
            int height = result.getHeight();
            int[] pixels = new int[width * height];
            // All are 0, or black, by default
            for (int y = 0; y < height; y++) {
                int offset = y * width;
                for (int x = 0; x < width; x++) {
                    pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
                }
            }
    
            Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
            return bitmap;
        }
    
        private static String guessAppropriateEncoding(CharSequence contents) {
            // Very crude at the moment
            for (int i = 0; i < contents.length(); i++) {
                if (contents.charAt(i) > 0xFF) { return "UTF-8"; }
            }
            return null;
        }
    
        private static String trim(String s) {
            if (s == null) { return null; }
            String result = s.trim();
            return result.length() == 0 ? null : result;
        }
    
        private static String escapeMECARD(String input) {
            if (input == null || (input.indexOf(':') < 0 && input.indexOf(';') < 0)) { return input; }
            int length = input.length();
            StringBuilder result = new StringBuilder(length);
            for (int i = 0; i < length; i++) {
                char c = input.charAt(i);
                if (c == ':' || c == ';') {
                    result.append('\\');
                }
                result.append(c);
            }
            return result.toString();
        }
    }
    
  • 80

    compile 'com.google.zxing:core:2.3.0'
    

    不幸的是没有为我工作 .

    这对我有用:

    dependencies {
       compile 'com.journeyapps:zxing-android-embedded:3.0.1@aar'
       compile 'com.google.zxing:core:3.2.0'
    }
    

    请在此处找到链接:https://github.com/journeyapps/zxing-android-embedded

  • 10

    使用ANT构建问题?继续阅读

    如果 ant -f core/build.xml 说的话:

    Unable to locate tools.jar. Expected to find it in
    C:\Program Files\Java\jre6\lib\tools.jar
    

    然后将 JAVA_HOME 环境变量设置为正确的java文件夹 . 我在我的(Windows)中找到了tools.jar:

    C:\Program Files\Java\jdk1.6.0_21\lib
    

    所以我将 JAVA_HOME 设置为:

    C:\Progra~1\Java\jdk1.6.0_25
    

    我在某个网站上发现的语法较短的原因是:

    “强烈建议您选择一个在路径名中不包含空格的安装目录(例如,不要安装在C:\ Program Files中) . 如果在这样的目录中安装了Java,那么设置JAVA_HOME环境变量到不包含空格的路径(例如,C:\ Progra~1);如果不这样做,将导致某些依赖于JAVA_HOME值的程序抛出异常 .

    然后我重新启动cmd(重要的是因为DOS shell仅在启动时读取env变量,因此更改env var将要求您使用新的shell来获取更新的值)

    最后 ant -f core/build.xml 工作了 .

  • 4

    由于一些答案已经过时,我想提供我自己的答案 -

    要按照their Wiki的建议将ZXing库集成到您的Android应用程序中,您需要在项目中添加2个Java文件:

    然后在 Android Studio 中将以下行添加到build.gradle文件中:

    dependencies {
        ....
        compile 'com.google.zxing:core:3.2.1'
    }
    

    或者,如果仍然使用 Eclipse with ADT-plugincore.jar文件添加到项目的libs子目录中(此处为fullscreen Windowsfullscreen Mac):

    Windows screenshot

    最后将此代码添加到MainActivity.java

    public void scanQRCode(View v) {
        IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
        integrator.initiateScan(IntentIntegrator.QR_CODE_TYPES);
    }
    
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        IntentResult result = 
            IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
        if (result != null) {
            String contents = result.getContents();
            if (contents != null) {
                showDialog(R.string.result_succeeded, result.toString());
            } else {
                showDialog(R.string.result_failed,
                    getString(R.string.result_failed_why));
            }
        }
    }
    
    private void showDialog(int title, CharSequence message) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle(title);
        builder.setMessage(message);
        builder.setPositiveButton(R.string.ok_button, null);
        builder.show();
    }
    

    生成的应用程序将要求安装并启动Barcode Scanner app by ZXing(扫描后将自动返回到您的应用程序):

    Barcode Scanner app

    此外,如果您想构建并运行ZXing Test app作为您自己的应用程序的灵感:

    ZXing Test app

    然后你需要来自GitHub的4个Java文件:

    • BenchmarkActivity.java

    • BenchmarkAsyncTask.java

    • BenchmarkItem.java

    • ZXingTestActivity.java

    来自Maven repository的3个Jar文件:

    • core.jar

    • android-core.jar

    • android-integration.jar

    (您可以使用 mvn package 自行构建Jar文件 - 如果您从GitHub查看ZXing并在您的计算机上安装ant和maven工具) .

    注意:如果您的项目无法识别Jar文件,则可能需要在项目属性中启动Java版本:

    properties screenshot

  • 0

    你在zxing网站上看过wiki pages吗?看来你可能会发现GettingStartedDeveloperNotesScanningViaIntent很有帮助 .

  • 4

    Step by step to setup zxing 3.2.1 in eclipse

    • 从“https://github.com/zxing/zxing”下载zxing-master.zip

    • 解压缩zxing-master.zip,使用eclipse导入zxing-master中的"android"项目

    • 从“http://repo1.maven.org/maven2/com/google/zxing/core/3.2.1/”下载core-3.2.1.jar

    • 在"android"项目中创建"libs"文件夹并将cor-3.2.1.jar粘贴到libs文件夹中

    • 单击项目:选择"properties" - > "Java Compiler"将级别更改为1.7 . 然后单击"Android"将"Project build target"更改为android 4.4.2,因为使用1.7需要使用Android 4.4进行编译

    • 如果"zxing-master/android/app/src/main/java/com/google/zxing/client/android/camera/"中不存在"CameraConfigurationUtils.java" . 您可以从"zxing-master/android-core/src/main/java/com/google/zxing/client/android/camera/"复制它并粘贴到您的项目中 .

    • 清理并构建项目 . 如果您的项目显示有关"switch - case"的错误,则应将其更改为"if - else" .

    • 完成 . 清理并构建项目 .

    • 参考链接:Using ZXing to create an android barcode scanning app

  • 0

    我尝试了所有可能的方法来实现这一点,然后我发现了JourneyApps的缩小版xZing . 我已将其移植到eclipse并在GitHub上共享 .

    If you are using eclipse use this project:-

    https://github.com/hiteshsahu/XZing-Barcode-Scanner-Minified-Eclipse

    If you are using Studio use this project :-

    https://github.com/journeyapps/zxing-android-embedded

    Advantages

    • 应用程序中的内置条形码扫描程序不需要使用Playstore安装第三方应用程序 .

    • 你不需要在Core,Android客户端等之间混淆jars只需在你的项目中删除这个包和相关的布局,你就可以了 . 只需要Jar就可以从 com.google.zxing:core:3.2.0 下载

    http://mvnrepository.com/artifact/com.google.zxing/core/3.2.0

    • No need to add tons of packages 参见下面的图片进行比较

    之前: -

    enter image description here

    之后: -

    enter image description here

    • 最重要的部分是 highly customizable 即 . 您可以添加闪光灯,在片段中使用它并支持方向更改 .

    • 您可以在 Cordova App 中使用此Capture活动进行条形码扫描 .

    您在应用清单中的捕获活动看起来像这样

    <activity
                android:name="com.journeyapps.barcodescanner.CaptureActivity"
                android:clearTaskOnLaunch="true"
                android:configChanges="orientation|keyboardHidden"
                android:exported="false"
                android:screenOrientation="fullSensor"
                android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
                android:windowSoftInputMode="stateAlwaysHidden" >
                <intent-filter>
                    <action android:name="com.google.zxing.client.android.SCAN" />
    
                    <category android:name="android.intent.category.DEFAULT" />
                </intent-filter>
            </activity>
    

    和插件将看起来像这样

    public class BarcodeScanner extends CordovaPlugin {
        public static final int REQUEST_CODE = 0x0ba7c0de;
    
        private static final String SCAN = "scan";
        private static final String CANCELLED = "cancelled";
        private static final String FORMAT = "format";
        private static final String TEXT = "text";
        private static final String SCAN_INTENT = "com.google.zxing.client.android.SCAN";
    
        private static final String LOG_TAG = "BarcodeScanner";
    
        private CallbackContext callbackContext;
    
        /**
         * Constructor.
         */
        public BarcodeScanner() {
    
    
        }
    
        /**
         * Executes the request.
         *
         * This method is called from the WebView thread. To do a non-trivial amount of work, use:
         *     cordova.getThreadPool().execute(runnable);
         *
         * To run on the UI thread, use:
         *     cordova.getActivity().runOnUiThread(runnable);
         *
         * @param action          The action to execute.
         * @param args            The exec() arguments.
         * @param callbackContext The callback context used when calling back into JavaScript.
         * @return                Whether the action was valid.
         *
         * @sa https://github.com/apache/cordova-android/blob/master/framework/src/org/apache/cordova/CordovaPlugin.java
         */
        @Override
        public boolean execute(String action, JSONArray args, CallbackContext callbackContext) {
            this.callbackContext = callbackContext;
            if (action.equals(SCAN)) {
                scan(args);
            } else {
                return false;
            }
            return true;
        }
    
        /**
         * Starts an intent to scan and decode a barcode.
         */
        public void scan(JSONArray args) {
            Intent intentScan = new Intent(SCAN_INTENT);
            intentScan.addCategory(Intent.CATEGORY_DEFAULT);
    
            // add config as intent extras
            if(args.length() > 0) {
    
                JSONObject obj;
                JSONArray names;
                String key;
                Object value;
    
                for(int i=0; i<args.length(); i++) {
    
                    try {
                        obj = args.getJSONObject(i);
                    } catch(JSONException e) {
                        Log.i("CordovaLog", e.getLocalizedMessage());
                        continue;
                    }
    
                    names = obj.names();
                    for(int j=0; j<names.length(); j++) {
                        try {
                            key = names.getString(j);
                            value = obj.get(key);
    
                            if(value instanceof Integer) {
                                intentScan.putExtra(key, (Integer)value);
                            } else if(value instanceof String) {
                                intentScan.putExtra(key, (String)value);
                            }
    
                        } catch(JSONException e) {
                            Log.i("CordovaLog", e.getLocalizedMessage());
                            continue;
                        }
                    }
                }
    
            }
    
            // avoid calling other phonegap apps
            intentScan.setPackage(this.cordova.getActivity().getApplicationContext().getPackageName());
    
            this.cordova.startActivityForResult((CordovaPlugin) this, intentScan, REQUEST_CODE);
        }
    
        /**
         * Called when the barcode scanner intent completes.
         *
         * @param requestCode The request code originally supplied to startActivityForResult(),
         *                       allowing you to identify who this result came from.
         * @param resultCode  The integer result code returned by the child activity through its setResult().
         * @param intent      An Intent, which can return result data to the caller (various data can be attached to Intent "extras").
         */
        @Override
        public void onActivityResult(int requestCode, int resultCode, Intent intent) {
            if (requestCode == REQUEST_CODE) {
                if (resultCode == Activity.RESULT_OK) {
                    JSONObject obj = new JSONObject();
                    try {
                        obj.put(TEXT, intent.getStringExtra("SCAN_RESULT"));
                        obj.put(FORMAT, intent.getStringExtra("SCAN_RESULT_FORMAT"));
                        obj.put(CANCELLED, false);
                    } catch (JSONException e) {
                        Log.d(LOG_TAG, "JSONException "+e.getMessage());
                    }
                    this.callbackContext.success(obj);
                } else if (resultCode == Activity.RESULT_CANCELED) {
                    this.callbackContext.success("");
                } else {
                    this.callbackContext.error("Technical Problem");
                }
            }
        }
    }
    

    快乐融合!!

  • 1

    zxing的家伙用1.7创建一个Android项目更容易 . 它不像过去那样痛苦 . 对于想要快速为android创建zxing项目的人来说,这是一个快速博客 .

    • 从zxing.org查看zxing来源

    • 在日食上创建一个Android项目

    • 删除main.xml

    • 右键单击“src”目录并点击导入 . 按提及的顺序浏览到以下目录 . 当您逐个添加它们以进行导入时,请确保在导入向导的编辑字段中具有src目录 . 并且您只选择左目录树中的“com”目录 . 不要选择src .

    • 核心

    • android-integration

    • android

    • 确保你的android sdk版本是9,任何小的和androidmanifest.xml都会哭 .

    • 其中一种语言的Strings.xml会被放置,只需在'字符前面放一个/

    zxing 1.7(6月20日结账)的android项目 .

    http://www.4shared.com/file/bFx8Y5Ys/zXingJune2010.html( NOT AVAILABLE ANYMORE

  • 11

    当google play服务(自版本7.8.0)包含条形码解码器时,为什么要使用外部lib .

  • 14

    我刚写了一个方法,它解码生成的条码, BitmapString .

    它完全符合要求,只是没有 CaptureActivity ......

    因此,可以跳过 build.gradle 中的 android-integration 库:

    dependencies {
        // https://mvnrepository.com/artifact/com.google.zxing
        compile('com.google.zxing:core:3.3.0')
        compile('com.google.zxing:android-core:3.3.0')
    }
    

    方法如下(实际上在jUnit测试中解码生成的条形码):

    import android.graphics.Bitmap;
    
    import com.google.zxing.BinaryBitmap;
    import com.google.zxing.LuminanceSource;
    import com.google.zxing.MultiFormatReader;
    import com.google.zxing.NotFoundException;
    import com.google.zxing.RGBLuminanceSource;
    import com.google.zxing.common.HybridBinarizer;
    import com.google.zxing.Result;
    
    protected String decode(Bitmap bitmap) {
    
        MultiFormatReader reader = new MultiFormatReader();
        String barcode = null;
    
        int[] intArray = new int[bitmap.getWidth() * bitmap.getHeight()];
        bitmap.getPixels(intArray, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight());
        LuminanceSource source = new RGBLuminanceSource(bitmap.getWidth(), bitmap.getHeight(), intArray);
        BinaryBitmap binary = new BinaryBitmap(new HybridBinarizer(source));
    
        try {
    
            Result result = reader.decode(binary);
            // BarcodeFormat format = result.getBarcodeFormat(); 
            // ResultPoint[] points = result.getResultPoints();
            // byte[] bytes = result.getRawBytes(); 
            barcode = result.getText();
    
        } catch (NotFoundException e) {
            e.printStackTrace();
        }
        return barcode;
    }
    
  • 2

    更简单的方法 .

    只需在应用程序级别gradle文件中包含依赖项即可

    compile 'com.journeyapps:zxing-android-embedded:3.0.1@aar'
    compile 'com.google.zxing:core:3.2.0'
    

    在xml文件中定义一个按钮,然后在OnCreate()和按钮的OnClick监听器内的Java文件中写下代码

    new IntentIntegrator(this).initiateScan();
    

    并在Java文件的OnCreate()之后写下面的代码

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
        if(result != null) {
            if(result.getContents() == null) {
                Log.d("MainActivity", "Cancelled scan");
                Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
            } else {
                Log.d("MainActivity", "Scanned");
                st_scanned_result = result.getContents();
                Toast.makeText(this, "Scanned: " + result.getContents(), Toast.LENGTH_LONG).show();
    
            }
        }
    
    }
    
  • 2

    我最近在ios和android中使用了谷歌移动视觉 . 我强烈建议您使用谷歌条码扫描 . 它对任何方向都非常敏感,处理时间非常快 . 它被称为谷歌移动视觉 .

    条形码扫描仪API可以任何方向实时检测条形码 . 您还可以同时检测和解析不同格式的多个条形码 .

    https://developers.google.com/vision/

    https://codelabs.developers.google.com/codelabs/bar-codes/#0

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