@Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        ArrayList<BaseMedia> medias = (ArrayList<BaseMedia>) getMediaAdapter().getSelectedMedias();
        onSaveMedias(outState, medias);
    }
A full implement for {@link com.bilibili.boxing.presenter.PickerContract.View} supporting all the mode
in {@link BoxingConfig.Mode}.
use this to pick the picture.

@author ChenSL
boxing-impl/src/main/java/com/bilibili/boxing_impl/ui/BoxingViewFragment.java