使用FAB按钮进行Android转换

Question

根据这些指南，我想在活动开始和结束时显示/隐藏我的FAB按钮 https://material.io/guidelines/motion/material-motion.html#material-motion-what-makes-a-good-transition
我正在使用共享元素活动转换来显示我的详细活动，如下所示：
https://github.com/codepath/android_guides/wiki/Shared-Element-Activity-Transition

CardAdapter.java

@Override
public void onBindViewHolder(CardViewHolder holder, int position) {
    [...]
    holder.getBinding().setVariable(BR.handler, mHandler);
    holder.getBinding().executePendingBindings();
}

CardHandler.java

public class CardHandler {
    private Activity mActivity;

    CardHandler(Activity activity) {
        mActivity = activity;
    }

    public void onCardClick(View view, Module module) {
        final Context context = view.getContext();
        final Intent intent = new Intent(context, DetailActivity.class);
        intent.putExtra(DetailActivity.MODULE, module);

        View image = view.findViewById(R.id.card_image);
        View description = view.findViewById(R.id.card_description);

        Pair<View, String> p1 = Pair.create(image, "image");
        Pair<View, String> p2 = Pair.create(description, "description");

        ActivityOptionsCompat options = ActivityOptionsCompat
                .makeSceneTransitionAnimation(mActivity, p1, p2);

        context.startActivity(intent, options.toBundle());
    }
}

DetailActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ViewDataBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_detail);

    // Enable back button
    setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
    if (null != getSupportActionBar()) {
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }

    // Retrieve module from extra
    final Module module = getIntent().getParcelableExtra(MODULE);

    // Bind module data
    binding.setVariable(BR.module, module);
    mFabAction = (FloatingActionButton) findViewById(R.id.fab_action);

    addTransitionEnterListener();
}

private boolean addTransitionEnterListener() {
    final Transition transition = getWindow().getSharedElementEnterTransition();
    if (transition == null) return false;
    transition.addListener(new Transition.TransitionListener() {
        @Override
        public void onTransitionEnd(Transition transition) {
            mFabAction.show();
            transition.removeListener(this);
            addTransitionReturnListener();
        }
    });
    return true;
}

private boolean addTransitionReturnListener() {
    final Transition transition = getWindow().getSharedElementReturnTransition();

    if (transition == null) return false;
    transition.addListener(new Transition.TransitionListener() {
        @Override
        public void onTransitionStart(Transition transition) {
            mFabAction.hide();
            transition.removeListener(this);
        }
    });
    return true;
}

隐藏方法无法正常工作，我的fab按钮在转换过程中会被我的布局重叠。

https://youtu.be/p0Wam_bqn7I