FileChooser on iOS is not opening file (picture)

I noticed when I use a FileChooser class in order to get an image, it works on Android but not on iOS. I suppose it might be happening because of different work of filepath or special permissions for iOS.

Any ideas/suggestions? Thank you.

Here is my code:

ActionListener callback = e -> {
        if (e != null && e.getSource() != null) {
            String filePath = (String) e.getSource();

            cont.removeAll();
            try {
                Image originImg = Image.createImage(filePath);
                Image smallImg = originImg.scaled(getWidth()/2, -1);

                ScaleImageButton iv = new ScaleImageButton(smallImg);
                iv.addActionListener(evt->{
                    Dialog previewForm = new Dialog();
                    previewForm.addPointerReleasedListener(i-> previewForm.dispose());


                    ImageViewer imagePreview = new ImageViewer();
                    imagePreview.addPointerReleasedListener(i-> previewForm.dispose());
                    imagePreview.setImage(originImg.scaled(getWidth(), -1));

                    previewForm.setDisposeWhenPointerOutOfBounds(true);
                    previewForm.add(imagePreview);
                    previewForm.show();
                });

                cont.add(iv);
                revalidate();
            } catch (IOException ex) {

            }

        }
    };

    if (FileChooser.isAvailable()) {
        Log.p("FileChooser open");
        FileChooser.showOpenDialog(".png,image/png,.jpg,image/jpg,.jpeg", callback);
    } else {
        Display.getInstance().openGallery(callback, Display.GALLERY_IMAGE);
    }