Intent pickPhoto = new Intent(Intent.ACTION_PICK,
                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        activity.startActivityForResult(pickPhoto, code);

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == PHOTO_CODE && resultCode == Activity.RESULT_OK) {
            Uri selectedImage = data.getData();
            imageView.setImageURI(selectedImage);
        }
    }