83 lines
2.6 KiB
Markdown
83 lines
2.6 KiB
Markdown
[](https://github.com/mintware-de/flutter_barcode_reader/blob/master/LICENSE)
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[](https://github.com/mintware-de/flutter_barcode_reader/stargazers)
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[](https://pub.dartlang.org/packages/barcode_scan)
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[](https://github.com/mintware-de/flutter_barcode_reader/network)
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# Barcode Scanner
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A flutter plugin for scanning 2D barcodes and QR codes.
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This provides a simple wrapper for two commonly used iOS and Android libraries:
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iOS: https://github.com/mikebuss/MTBBarcodeScanner
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Android: https://github.com/dm77/barcodescanner
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### Features
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- [x] Scan 2D barcodes
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- [x] Scan QR codes
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- [x] Control the flash while scanning
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- [x] Permission handling
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## Getting Started
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### Android
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For Android, you must do the following before you can use the plugin:
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* Add the camera permission to your AndroidManifest.xml
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`<uses-permission android:name="android.permission.CAMERA" />`
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* This plugin is written in Kotlin. Therefore, you need to add Kotlin support to your project. See [installing the Kotlin plugin](https://kotlinlang.org/docs/tutorials/kotlin-android.html#installing-the-kotlin-plugin).
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Edit your project-level build.gradle file to look like this:
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```groovy
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buildscript {
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ext.kotlin_version = '1.3.61'
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// ...
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dependencies {
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// ...
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classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
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}
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}
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// ...
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```
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Edit your app-level build.gradle file to look like this:
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```groovy
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apply plugin: 'kotlin-android'
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// ...
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dependencies {
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
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// ...
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}
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```
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Now you can depend on the barcode_scan plugin in your pubspec.yaml file:
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```yaml
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dependencies:
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# ...
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barcode_scan: any
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```
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Click "Packages get" in Android Studio or run `flutter packages get` in your project folder.
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### iOS
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To use on iOS, you must add the the camera usage description to your Info.plist
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```xml
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<dict>
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<!-- ... -->
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<key>NSCameraUsageDescription</key>
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<string>Camera permission is required for barcode scanning.</string>
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<!-- ... -->
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</dict>
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```
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## Common problems
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### Android "Could not find org.jetbrains.kotlin:kotlin-stdlib-jre..."
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Change `org.jetbrains.kotlin:kotlin-stdlib-jre` to `org.jetbrains.kotlin:kotlin-stdlib-jdk`
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([StackOverflow](https://stackoverflow.com/a/53358817))
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