Barcode Detection Module for React Native

How to Run the Example

cd Example
npm install
react-native run-android or react-native run-ios

Screenshots

How to Use the Module

In Android

1. Create a new React Native project:

   react-native init NewProject

2. Add the local module to dependencies in package.json:

   "dependencies": {
   	"react": "16.0.0-alpha.6",
   	"react-native": "0.43.3",
   	"react-native-dbr":"file:../"
   },

3. Link dependencies:

   react-native link

4. Use flatDir to define library path in android/build.gradle:

   flatDir {
       dirs "$rootDir/../node_modules/react-native-dbr/android/lib"
   }
   

5. Use the module in index.android.js:

   import BarcodeReaderManager from 'react-native-dbr';
   
   BarcodeReaderManager.readBarcode('your license key', (msg) => {
       this.setState({result: msg});
       }, 
       (err) => {
       console.log(err);
   });

In iOS

1. Create a new React Native project:

   react-native init NewProject --version 0.44.3

2. Add the local module to dependencies in NewProject/package.json:

   "dependencies": {
       "react": "16.0.0-alpha.6",
       "react-native": "0.43.3",
       "react-native-dbr":"file:../"
   }

3. Remove node_moudules and install:

   sudo rm -rf node_moudules 
   npm install or yarn

4. Add BarcodeReaderManager.xcodeproj to your project libraries :

5. Use the module in index.ios.js:

   import BarcodeReaderManager from 'react-native-dbr';
   BarcodeReaderManager.readBarcode('your license here').then((msg) =>{
       this.setState({result: msg});
   }).catch((err) => {
       console.log(err);
   });
   

6. In AppDelegate.m (In order to achieve navigation from react-native to viewController):

   #import "../../../ios/BarcodeReaderManagerViewController.h"
   #import "../../../ios/DbrManager.h"
   
   - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
   {
   //  self.window.rootViewController = rootViewController;
       _nav = [[UINavigationController alloc] initWithRootViewController:_rootViewController];
       self.window.rootViewController = _nav;
       _nav.navigationBarHidden = YES;
       [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(doNotification:) name:@"readBarcode" object:nil];
       [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(backToJs:) name:@"backToJs" object:nil];
       [self.window makeKeyAndVisible];
       return YES;
   }
   
   -(void)doNotification:(NSNotification *)notification{
       BarcodeReaderManagerViewController* dbrMangerController = [[BarcodeReaderManagerViewController alloc] init];
       dbrMangerController.dbrManager = [[DbrManager alloc] initWithLicense:notification.userInfo[@"inputValue"]];
       [self.nav pushViewController:dbrMangerController animated:YES];
   }
   
   -(void)backToJs:(NSNotification *)notification{
       [self.nav popToViewController:self.rootViewController animated:YES];
   }
   

If you do not have a valid license, please contact support@dynamsoft.com. With invalid license, the SDK can work but will not return a full result.

Blog

Android Barcode Detection Component for React Native