status-im
/
react-native-cameraroll
mirror of https://github.com/status-im/react-native-cameraroll.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

feat(android): Manually obtain location metadata using ExifInterface (#114) 

* Manually obtain location metadata using ExifInterface

* import ExifInterface

* remove log statement

* removed unused code and put comments

* change error message text

* code formatting

Co-authored-by: Syed Rahaman <syed.rahaman@kartbites.com>
This commit is contained in:
Syed Rahaman 2020-04-30 17:44:37 +05:30 committed by GitHub
parent 53e42df323
commit ade785e29d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 21 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
android/src/main/java/com/reactnativecommunity/cameraroll/CameraRollModule.java
View File

@ -21,6 +21,7 @@ import android.os.Environment;
import android.provider.MediaStore;
import android.provider.MediaStore.Images;
import android.text.TextUtils;
import android.media.ExifInterface;
import com.facebook.common.logging.FLog;
import com.facebook.react.bridge.GuardedAsyncTask;
@ -457,8 +458,6 @@ public class CameraRollModule extends ReactContextBaseJavaModule {
int dateTakenIndex = media.getColumnIndex(Images.Media.DATE_TAKEN);
int widthIndex = media.getColumnIndex(MediaStore.MediaColumns.WIDTH);
int heightIndex = media.getColumnIndex(MediaStore.MediaColumns.HEIGHT);
int longitudeIndex = media.getColumnIndex(Images.Media.LONGITUDE);
int latitudeIndex = media.getColumnIndex(Images.Media.LATITUDE);
int dataIndex = media.getColumnIndex(MediaStore.MediaColumns.DATA);
for (int i = 0; i < limit && !media.isAfterLast(); i++) {
@ -468,7 +467,7 @@ public class CameraRollModule extends ReactContextBaseJavaModule {
putImageInfo(resolver, media, node, idIndex, widthIndex, heightIndex, dataIndex, mimeTypeIndex);
if (imageInfoSuccess) {
putBasicNodeInfo(media, node, mimeTypeIndex, groupNameIndex, dateTakenIndex);
putLocationInfo(media, node, longitudeIndex, latitudeIndex);
putLocationInfo(media, node, dataIndex);
edge.putMap("node", node);
edges.pushMap(edge);
@ -577,16 +576,25 @@ public class CameraRollModule extends ReactContextBaseJavaModule {
private static void putLocationInfo(
Cursor media,
WritableMap node,
int longitudeIndex,
int latitudeIndex) {
double longitude = media.getDouble(longitudeIndex);
double latitude = media.getDouble(latitudeIndex);
if (longitude > 0 || latitude > 0) {
WritableMap location = new WritableNativeMap();
location.putDouble("longitude", longitude);
location.putDouble("latitude", latitude);
node.putMap("location", location);
}
int dataIndex) {
try {
// location details are no longer indexed for privacy reasons using string Media.LATITUDE, Media.LONGITUDE
// we manually obtain location metadata using ExifInterface#getLatLong(float[]).
// ExifInterface is added in API level 5
final ExifInterface exif = new ExifInterface(media.getString(dataIndex));
float[] imageCoordinates = new float[2];
boolean hasCoordinates = exif.getLatLong(imageCoordinates);
if (hasCoordinates) {
double longitude = imageCoordinates[1];
double latitude = imageCoordinates[0];
WritableMap location = new WritableNativeMap();
location.putDouble("longitude", longitude);
location.putDouble("latitude", latitude);
node.putMap("location", location);
}
} catch (IOException e) {
FLog.e(ReactConstants.TAG, "Could not read the metadata", e);
}
}
/**