Welcome to our comprehensive guide on using the flutter_barcode_scanner plugin in your Flutter applications! This plugin seamlessly adds barcode scanning capabilities to both Android and iOS platforms. Let’s dive into how to set this up in your project.

Getting Started with Flutter Barcode Scanner

Before we begin, ensure you have Flutter installed on your system. We will break down the setup for both Android and iOS platforms.

Basic Installation Steps

• Clone or download the repository.
• Open the project using Android Studio or VS Code.
• Access pubspec.yaml and click on Packages get.
• Connect your device and hit run.
• To run on iOS, you’ll first need to execute it from Xcode and run pod install in the example/ios directory.

Platform-Specific Instructions

Android

No additional configuration is required for Android. Just follow the basic installation steps mentioned earlier.

iOS – Important Swift Configurations

iOS requires a few additional steps to ensure Swift support:

1. Fresh Start:
   • Create a new Flutter project ensuring to check the option Include Swift support for iOS code.
   • Open the iOS project in Xcode and set the minimum deployment target to 12 and Swift version to 5.
   • Run pod install in the ios folder of your project.
2. For Existing Flutter Apps:
   • If your existing iOS code is in Swift, modify the deployment target and Swift version similar to the fresh start process and run pod install.
   • If your existing code uses Objective-C, create a new Flutter project as above, copy the newly created ios folder into your existing project, then configure it as instructed.

How to Use the Plugin

Now that your project is set up, it’s time to implement barcode scanning functionality!

Implement One-Time Scan

1. First, import the package:

import 'package:flutter_barcode_scanner/flutter_barcode_scanner.dart';

2. Then, use the scanBarcode method:

String barcodeScanRes = await FlutterBarcodeScanner.scanBarcode(COLOR_CODE, CANCEL_BUTTON_TEXT, isShowFlashIcon, scanMode);

In this method, you can customize:

• COLOR_CODE: A hex color for the scanning line overlay.
• CANCEL_BUTTON_TEXT: The text that appears on the cancel button.
• isShowFlashIcon: A boolean to indicate if a flash icon should be displayed.
• scanMode: Options include QR, BARCODE, and DEFAULT (which will default to QR).

Continuous Scanning

If you’re looking to scan continuously, you can utilize:

FlutterBarcodeScanner.getBarcodeStreamReceiver(COLOR_CODE, 'Cancel', false, ScanMode.DEFAULT)
    .listen((barcode) {
        // Your barcode handling code here
    });

Troubleshooting

If you encounter any issues during installation or while running the app, consider the following troubleshooting ideas:

• Check if all configurations for each platform are correctly set as outlined. Ensure Swift support is enabled for iOS.
• Verify your pod install command is successful without errors.
• Ensure camera permissions are correctly set in your Info.plist file for iOS.
• For more assistance or to collaborate on AI development projects, stay connected with fxis.ai.

Conclusion

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

Happy scanning!