androidandroid-studiogradlezxing

How to integrate ZXing Library to Android Studio for Barcode Scanning?


I've been looking all over internet how to include zxing library to my project, and I found this tutorial: http://blog.dihaw.com/integrating-zxing-in-your-android-app-as-standalone-scanner/

But when I reach the point that you need to check for BeepManager to add the R import I get all kinds of errors in my project (Even on the MainActivity) that it couldn't find R.

Also I found this one https://github.com/journeyapps/zxing-android-embedded/blob/master/README.md which seemed a lot easier because it was auto integrated by gradle, but when I sync it pops an error that it couldn't find the files.

Any help would be appreciated :) I'm new to Android Studio.

EDIT:

I added the settings of the 2nd method (the one with the gradle settings) to my build.gradle and 4 error pop up:

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

Any help?

---ANSWER---

To fix this problem I needed to disable Offline Work on Gradle.


Solution

  • You need add the following to your build.gradle file:

    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'
    }
    

    My build.gradle file like this:

    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'
    }
    

    The code is here.

    Also, for how to use it, please refer my answer on the Stackoverflow here

    It contains method and also simple code that I have tested.