Wednesday, 20 March 2019

Android Q: fetch the gallery via MediaStore with location information

Looking at the storage access changes introduced in Android Q here, location informations are now redacted by default.

Google asks us to call setRequireOriginal() on the "MediaStore" object with the media's uri as a parameter. This works when you fetch medias one by one, but what about when we query the ContentResolver for the whole gallery?

See this sample:

String[] projection = {
        MediaStore.Files.FileColumns._ID,
        MediaStore.Files.FileColumns.DATA,
        MediaStore.Files.FileColumns.MEDIA_TYPE,
        MediaStore.Images.Media.DATE_TAKEN,
        MediaStore.Images.Media.WIDTH,
        MediaStore.Images.Media.HEIGHT,
        MediaStore.Images.Media.LATITUDE, // <----- THIS
        MediaStore.Images.Media.LONGITUDE, // <----- THIS
        MediaStore.Images.Media.MIME_TYPE,
};

String selection = MediaStore.Files.FileColumns.MEDIA_TYPE + "="
        + MediaStore.Files.FileColumns.MEDIA_TYPE_IMAGE;

Uri queryUri = MediaStore.Files.getContentUri("external");

Cursor cursor = null;
MediaStore a ;

try {
    cursor = context.getContentResolver().query(queryUri, projection, selection,
            null, MediaStore.Images.Media.DATE_TAKEN + " DESC");


}
catch (NullPointerException ex){
}


Starting Q the latitude and longitude are always set to 0. Is there a way to get the location data for a batch of medias assuming the ACCESS_MEDIA_LOCATION permission is added in the Manifest?



from Android Q: fetch the gallery via MediaStore with location information

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