working on creating and integrating the required native modules and implementing the iCamera SDK display on the React Native side.

App.tsx

@@ -16,8 +16,9 @@ import Login from './src/components/Login';
 import Register from './src/components/Register';
 import { authAPI } from './src/services/authAPI';
 import { networkService } from './src/services/networkService';
+import { ScannerScreen } from './src/screens/ScannerScreen';
 
-type Screen = 'login' | 'register' | 'home';
+type Screen = 'login' | 'register' | 'home' | 'scanner';
 const { MyNativeModule } = NativeModules;
 
 function App() {
@@ -28,6 +29,7 @@ function App() {
   const [currentUser, setCurrentUser] = useState<any>(null);
   const [qrCode, setQrCode] = useState<string | null>(null);
   const [isGeneratingQR, setIsGeneratingQR] = useState(false);
+  const [scannedCodes, setScannedCodes] = useState<any[]>([]);
 
   // Initialize app
   useEffect(() => {
@@ -111,7 +113,36 @@ Logged In: ${status.authentication.isLoggedIn ? 'Yes' : 'No'}
     }
   };
 
-  const generateQRCode = async () => {
+  const handleScanResult = (result: any) => {
+    console.log('Scan result:', result);
+    setScannedCodes(prev => [
+      {
+        code: result.code,
+        format: result.format,
+        timestamp: new Date().toLocaleTimeString(),
+      },
+      ...prev,
+    ]);
+    Alert.alert(
+      '✓ Scanned Successfully',
+      `Code: ${result.code}\nFormat: ${result.format}`,
+      [
+        {
+          text: 'Close',
+          onPress: () => setCurrentScreen('home'),
+        },
+      ]
+    );
+  };
+
+  const openScanner = () => {
+    setCurrentScreen('scanner');
+  } catch (error) {
+    Alert.alert('Error', 'Failed to get app status');
+  }
+};
+
+const generateQRCode = async () => {
   if (!currentUser?.email) {
     Alert.alert('Error', 'No user email available');
     return;
@@ -129,9 +160,9 @@ Logged In: ${status.authentication.isLoggedIn ? 'Yes' : 'No'}
   } finally {
     setIsGeneratingQR(false);
   }
-  };
+};
 
-  const renderScreen = () => {
+const renderScreen = () => {
   switch (currentScreen) {
     case 'login':
       return (
@@ -147,6 +178,13 @@ Logged In: ${status.authentication.isLoggedIn ? 'Yes' : 'No'}
           onRegisterSuccess={navigateToHome}
         />
       );
+    case 'scanner':
+      return (
+        <ScannerScreen
+          presignedUrl="https://your-backend-presigned-url.com"
+          onScan={handleScanResult}
+        />
+      );
     case 'home':
       return (
         <ScrollView style={styles.homeContainer} contentContainerStyle={styles.scrollContent}>
@@ -175,6 +213,15 @@ Logged In: ${status.authentication.isLoggedIn ? 'Yes' : 'No'}
           )}
 
           <View style={styles.buttonContainer}>
+            <TouchableOpacity
+              style={styles.scannerButton}
+              onPress={openScanner}
+            >
+              <Text style={styles.buttonText}>
+                📱 Scan QR/Barcode
+              </Text>
+            </TouchableOpacity>
+
             <TouchableOpacity
               style={styles.qrButton}
               onPress={generateQRCode}
@@ -194,6 +241,23 @@ Logged In: ${status.authentication.isLoggedIn ? 'Yes' : 'No'}
             </TouchableOpacity>
           </View>
 
+          {scannedCodes.length > 0 && (
+            <View style={styles.scannedContainer}>
+              <Text style={styles.scannedTitle}>
+                Scanned Codes ({scannedCodes.length})
+              </Text>
+              {scannedCodes.slice(0, 5).map((item, index) => (
+                <View key={index} style={styles.scannedItem}>
+                  <Text style={styles.scannedCode}>{item.code}</Text>
+                  <View style={styles.scannedFooter}>
+                    <Text style={styles.scannedFormat}>{item.format}</Text>
+                    <Text style={styles.scannedTime}>{item.timestamp}</Text>
+                  </View>
+                </View>
+              ))}
+            </View>
+          )}
+
           <Text style={styles.infoText}>
             {isOnline
               ? 'Your data is synced with the cloud'
@@ -204,10 +268,10 @@ Logged In: ${status.authentication.isLoggedIn ? 'Yes' : 'No'}
     default:
       return null;
   }
-  };
+};
 
-  // Show loading screen while initializing
-  if (!isInitialized) {
+// Show loading screen while initializing
+if (!isInitialized) {
   return (
     <SafeAreaProvider>
       <StatusBar barStyle={isDarkMode ? 'light-content' : 'dark-content'} />
@@ -216,14 +280,14 @@ Logged In: ${status.authentication.isLoggedIn ? 'Yes' : 'No'}
       </View>
     </SafeAreaProvider>
   );
-  }
+}
 
-  return (
+return (
   <SafeAreaProvider>
     <StatusBar barStyle={isDarkMode ? 'light-content' : 'dark-content'} />
     {renderScreen()}
   </SafeAreaProvider>
-  );
+);
 }
 
 const styles = StyleSheet.create({
@@ -310,6 +374,13 @@ const styles = StyleSheet.create({
     marginBottom: 30,
     width: '100%',
   },
+  scannerButton: {
+    backgroundColor: '#9333ea',
+    paddingHorizontal: 20,
+    paddingVertical: 14,
+    borderRadius: 25,
+    alignItems: 'center',
+  },
   qrButton: {
     backgroundColor: '#10b981',
     paddingHorizontal: 20,
@@ -336,6 +407,52 @@ const styles = StyleSheet.create({
     fontWeight: '600',
     fontSize: 16,
   },
+  scannedContainer: {
+    width: '100%',
+    marginBottom: 20,
+    backgroundColor: 'white',
+    borderRadius: 12,
+    padding: 16,
+    shadowColor: '#000',
+    shadowOffset: { width: 0, height: 2 },
+    shadowOpacity: 0.1,
+    shadowRadius: 4,
+    elevation: 3,
+  },
+  scannedTitle: {
+    fontSize: 14,
+    fontWeight: '600',
+    color: '#333',
+    marginBottom: 12,
+  },
+  scannedItem: {
+    backgroundColor: '#f5f5f5',
+    borderLeftWidth: 4,
+    borderLeftColor: '#9333ea',
+    paddingHorizontal: 12,
+    paddingVertical: 10,
+    marginBottom: 8,
+    borderRadius: 4,
+  },
+  scannedCode: {
+    fontSize: 13,
+    fontWeight: '600',
+    color: '#000',
+    marginBottom: 4,
+  },
+  scannedFooter: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+  },
+  scannedFormat: {
+    fontSize: 11,
+    color: '#666',
+    fontWeight: '500',
+  },
+  scannedTime: {
+    fontSize: 11,
+    color: '#999',
+  },
   infoText: {
     fontSize: 14,
     color: '#888',

index.js

@@ -7,3 +7,16 @@ import App from './App';
 import { name as appName } from './app.json';
 LogBox.ignoreAllLogs();
 AppRegistry.registerComponent(appName, () => App);
+
+
+// 1. Hook (Easiest) ⭐
+// const scanner = useCameraScanner({
+//   presignedUrl: 'https://...',
+//   onScanResult: (result) => console.log(result.code),
+// });
+
+// 2. Ready Screen
+//<ScannerScreen presignedUrl="..." onScan={handleScan} />
+
+// 3. Direct Module
+// const { ICameraSDK } = NativeModules;