when saving images, only invoke the media scanner if the user is saving to the camera roll. (react-native-camera#716)

Author: npomfret

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

@@ -605,7 +605,7 @@ private synchronized void processImage(MutableImage mutableImage, ReadableMap op
 
  addToMediaStore(cameraRollFile.getAbsolutePath());
 
- resolve(cameraRollFile, promise);
+ resolveImage(cameraRollFile, promise, true);
 
  break;
  }
@@ -623,7 +623,7 @@ private synchronized void processImage(MutableImage mutableImage, ReadableMap op
  return;
  }
 
- resolve(pictureFile, promise);
+ resolveImage(pictureFile, promise, false);
 
  break;
  }
@@ -641,7 +641,7 @@ private synchronized void processImage(MutableImage mutableImage, ReadableMap op
  return;
  }
 
- resolve(tempFile, promise);
+ resolveImage(tempFile, promise, false);
 
  break;
  }
@@ -764,27 +764,31 @@ public void onHostDestroy() {
  // ... do nothing
  }
 
- private void resolve(final File imageFile, final Promise promise) {
+ private void resolveImage(final File imageFile, final Promise promise, boolean addToMediaStore) {
  final WritableMap response = new WritableNativeMap();
  response.putString("path", Uri.fromFile(imageFile).toString());
 
- // borrowed from react-native CameraRollManager, it finds and returns the 'internal'
- // representation of the image uri that was just saved.
- // e.g. content://media/external/images/media/123
- MediaScannerConnection.scanFile(
- _reactContext,
- new String[]{imageFile.getAbsolutePath()},
- null,
- new MediaScannerConnection.OnScanCompletedListener() {
- @Override
- public void onScanCompleted(String path, Uri uri) {
- if (uri != null) {
- response.putString("mediaUri", uri.toString());
+ if(addToMediaStore) {
+ // borrowed from react-native CameraRollManager, it finds and returns the 'internal'
+ // representation of the image uri that was just saved.
+ // e.g. content://media/external/images/media/123
+ MediaScannerConnection.scanFile(
+ _reactContext,
+ new String[]{imageFile.getAbsolutePath()},
+ null,
+ new MediaScannerConnection.OnScanCompletedListener() {
+ @Override
+ public void onScanCompleted(String path, Uri uri) {
+ if (uri != null) {
+ response.putString("mediaUri", uri.toString());
+ }
+
+ promise.resolve(response);
  }
-
-  promise.resolve(response);
-  }
-  });
+ });
+ } else {
+ promise.resolve(response);
+ }
  }
 
 }