如何将 ZXing 库集成到 Android Studio 进行条码扫描？

Question

我一直在互联网上寻找如何将 zxing 库包含到我的项目中，我找到了这个教程：http://blog.dihaw.com/integrating-zxing-in-your-android-app-as-standalone-scanner/

但是当我到达您需要检查 BeepManager 以添加 R 导入的地步时，我的项目中（即使在 MainActivity 上）出现了找不到 R 的各种错误。

我还发现了这个https://github.com/journeyapps/zxing-android-embedded/blob/master/README.md，它似乎更容易，因为它是由 gradle 自动集成的，但是当我同步它时会弹出一个错误，它找不到文件。

任何帮助将不胜感激 :) 我是 Android Studio 的新手。

编辑：

我将第二种方法的设置（带有 gradle 设置的那个）添加到我的 build.gradle 并弹出 4 个错误：

Error:Failed to find: com.embarkmobile:zxing-android-legacy:2.0.0 
Error:Failed to find: com.google.zxing:core:3.0.1 
Error:Failed to find: com.embarkmobile:zxing-android-integration:2.0.0 
Error:Failed to find: com.embarkmobile:zxing-android-minimal:2.0.0

有什么帮助吗？

---答案---

为了解决这个问题，我需要在 Gradle 上禁用 Offline Work。

• Android Studio 的设置>Gradle>取消选中“离线工作”

Answer 1

您需要将以下内容添加到您的 build.gradle 文件中：

repositories {
    mavenCentral()

    maven {
        url "http://dl.bintray.com/journeyapps/maven"
    }
}

dependencies {
    // Supports Android 4.0.3 and later (API level 15)
    compile 'com.journeyapps:zxing-android-embedded:2.0.1@aar'

    // Supports Android 2.1 and later (API level 7), but not optimal for later Android versions.
    // If you only plan on supporting Android 4.0.3 and up, you don't need to include this.
    compile 'com.journeyapps:zxing-android-legacy:2.0.1@aar'

    // Convenience library to launch the scanning and encoding Activities.
    // It automatically picks the best scanning library from the above two, depending on the
    // Android version and what is available.
    compile 'com.journeyapps:zxing-android-integration:2.0.1@aar'

    // Version 3.0.x of zxing core contains some code that is not compatible on Android 2.2 and earlier.
    // This mostly affects encoding, but you should test if you plan to support these versions.
    // Older versions e.g. 2.2 may also work if you need support for older Android versions.
    compile 'com.google.zxing:core:3.0.1'
}

我的build.gradle 文件是这样的：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "com.myapplication2"
        minSdkVersion 16
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

repositories {
    mavenCentral()

    maven {
        url "https://raw.github.com/embarkmobile/zxing-android-minimal/mvn-repo/maven-repository/"
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
    // Supports Android 4.0.3 and later (API level 15)
    compile 'com.embarkmobile:zxing-android-minimal:2.0.0@aar'

    // Supports Android 2.1 and later (API level 7), but not optimal for later Android versions.
    // If you only plan on supporting Android 4.0.3 and up, you don't need to include this.
    compile 'com.embarkmobile:zxing-android-legacy:2.0.0@aar'

    // Convenience library to launch the scanning and encoding Activities.
    // It automatically picks the best scanning library from the above two, depending on the
    // Android version and what is available.
    compile 'com.embarkmobile:zxing-android-integration:2.0.0@aar'

    // Version 3.0.x of zxing core contains some code that is not compatible on Android 2.2 and earlier.
    // This mostly affects encoding, but you should test if you plan to support these versions.
    // Older versions e.g. 2.2 may also work if you need support for older Android versions.
    compile 'com.google.zxing:core:3.0.1'
}

代码是here。

另外，关于如何使用，请参考我在 Stackoverflow 上的回答here

它包含我测试过的方法和简单代码。

Answer 2

从 zxing-android-embedded 版本 3 开始，您只需将这些添加到您的 build.gradle 文件中：

repositories {
    jcenter()
}

dependencies {
    compile 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
    compile 'com.google.zxing:core:3.2.0'
}

按照以下步骤操作：https://github.com/journeyapps/zxing-android-embedded/

它现在还支持纵向模式，只需对 IntentIntegrator 进行简单更改，以及更简单的自定义视图方法。

Answer 3

集成 ZXing 以进行条码或二维码扫描的最简单方法。

完整参考：Scan Barcode ZXing Android

添加依赖

compile 'me.dm7.barcodescanner:zxing:1.9' 

扫描活动

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import com.google.zxing.Result;

import me.dm7.barcodescanner.zxing.ZXingScannerView;

public class ScanActivity extends AppCompatActivity implements ZXingScannerView.ResultHandler{

    private ZXingScannerView mScannerView;

    @Override
    public void onCreate(Bundle state) {
        super.onCreate(state);
        mScannerView = new ZXingScannerView(this);   // Programmatically initialize the scanner view
        setContentView(mScannerView);                // Set the scanner view as the content view
    }

    @Override
    public void onResume() {
        super.onResume();
        mScannerView.setResultHandler(this); // Register ourselves as a handler for scan results.
        mScannerView.startCamera();          // Start camera on resume
    }

    @Override
    public void onPause() {
        super.onPause();
        mScannerView.stopCamera();           // Stop camera on pause
    }

    @Override
    public void handleResult(Result rawResult) {
        // Do something with the result here
       // Log.v("tag", rawResult.getText()); // Prints scan results
       // Log.v("tag", rawResult.getBarcodeFormat().toString()); // Prints the scan format (qrcode, pdf417 etc.)

        MainActivity.tvresult.setText(rawResult.getText());
        onBackPressed();

        // If you would like to resume scanning, call this method below:
        //mScannerView.resumeCameraPreview(this);
    }
}

Answer 4

我可以用这个：

repositories { mavenCentral()
    maven { url "https://raw.github.com/embarkmobile/zxing-android-minimal/mvn-repo/maven-repository/" }
}

compile 'com.google.zxing:core:3.2.1'
compile 'com.embarkmobile:zxing-android-minimal:2.0.0@aar'
compile 'com.embarkmobile:zxing-android-integration:2.0.0@aar'

我推荐使用 IntentIntegrator

IntentIntegrator integrator = new IntentIntegrator(getActivity()); 
integrator.forSupportFragment(this).initiateScan();

requestCode 与 IntentIntegrator.REQUEST_CODE 一起返回