Add internal prop determining if barcode scanner is wanted.

android/src/main/java/com/lwansbrough/RCTCamera/RCTCamera.java

@@ -17,6 +17,7 @@ public class RCTCamera {
     private final HashMap<Integer, CameraInfoWrapper> _cameraInfos;
     private final HashMap<Integer, Integer> _cameraTypeToIndex;
     private final Map<Number, Camera> _cameras;
+    private boolean _barcodeScannerEnabled = false;
     private int _orientation = -1;
     private int _actualDeviceOrientation = 0;
     private int _adjustedDeviceOrientation = 0;
@@ -134,6 +135,14 @@ public class RCTCamera {
         adjustPreviewLayout(RCTCameraModule.RCT_CAMERA_TYPE_BACK);
     }
 
+    public boolean isBarcodeScannerEnabled() {
+      return _barcodeScannerEnabled;
+    }
+
+    public void setBarcodeScannerEnabled(boolean barcodeScannerEnabled) {
+        _barcodeScannerEnabled = barcodeScannerEnabled;
+    }
+
     public int getActualDeviceOrientation() {
         return _actualDeviceOrientation;
     }

android/src/main/java/com/lwansbrough/RCTCamera/RCTCameraView.java

@@ -105,6 +105,10 @@ public class RCTCameraView extends ViewGroup {
         }
     }
 
+    public void setBarcodeScannerEnabled(boolean barcodeScannerEnabled) {
+        RCTCamera.getInstance().setBarcodeScannerEnabled(barcodeScannerEnabled);
+    }
+
     private boolean setActualDeviceOrientation(Context context) {
         int actualDeviceOrientation = getDeviceOrientation(context);
         if (_actualDeviceOrientation != actualDeviceOrientation) {

android/src/main/java/com/lwansbrough/RCTCamera/RCTCameraViewManager.java

@@ -61,4 +61,9 @@ public class RCTCameraViewManager extends ViewGroupManager<RCTCameraView> {
     public void setCaptureAudio(RCTCameraView view, boolean captureAudio) {
         // TODO - implement video mode
     }
+
+    @ReactProp(name = "barcodeScannerEnabled")
+    public void setBarcodeScannerEnabled(RCTCameraView view, boolean barcodeScannerEnabled) {
+      view.setBarcodeScannerEnabled(barcodeScannerEnabled);
+    }
 }

index.js

@@ -46,6 +46,8 @@ function convertNativeProps(props) {
     newProps.barCodeTypes = [];
   }
 
+  newProps.barcodeScannerEnabled = typeof props.onBarCodeRead === 'function'
+
   return newProps;
 }
 
@@ -89,6 +91,7 @@ export default class Camera extends Component {
     ]),
     keepAwake: PropTypes.bool,
     onBarCodeRead: PropTypes.func,
+    barcodeScannerEnabled: PropTypes.bool,
     onFocusChanged: PropTypes.func,
     onZoomChanged: PropTypes.func,
     mirrorImage: PropTypes.bool,