Android应用切换系统主题才显示Fragment内容问题求助

已完成NavController与BottomNavigationView集成，底部导航切换功能正常，但Fragment内容始终为空，仅切换设备明暗主题后才会显示。

涉及HomeActivity及HomeFragment、SearchFragment、ProfileFragment三个Fragment，布局预览中Fragment内容正常，已排除颜色和主题配置问题，推测是代码逻辑导致内容未加载。

HomeActivity.java #

public class Home extends AppCompatActivity {

    TextView tvSong, tvArtist;
    ImageView ivCover, ivPlayButton;
    ActivityHomeBinding binding;
    MaterialCardView cardView;
    BottomNavigationView bottomNavigationView;
    NavController navController;


    private static final int ANIMATION_DURATION = 150; // Duration in milliseconds

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        binding = ActivityHomeBinding.inflate(getLayoutInflater());
        setContentView(R.layout.activity_home);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.homePage), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });

        tvSong = findViewById(R.id.tvSong);
        tvArtist = findViewById(R.id.tvArtist);
        ivPlayButton = findViewById(R.id.ivPlay);
        cardView = findViewById(R.id.mcvCurrentSong);
        bottomNavigationView = findViewById(R.id.bnBotNav);



        final MutableLiveData<Boolean>[] musicPlaying = new MutableLiveData[]{new MutableLiveData<Boolean>()};
        musicPlaying[0].setValue(true);



        musicPlaying[0].observe(this, aBoolean -> {
            if (Boolean.TRUE.equals(aBoolean)) {
                cardView.setVisibility(View.VISIBLE);
                cardView.setAlpha(0f);
                cardView.animate()
                        .alpha(1f)
                        .setDuration(ANIMATION_DURATION)
                        .setListener(null);
                ivPlayButton.setImageResource(R.drawable.ic_pause);
            } else {
                cardView.animate()
                        .alpha(0f)
                        .setDuration(ANIMATION_DURATION)
                        .setListener(new AnimatorListenerAdapter() {
                            @Override
                            public void onAnimationEnd(Animator animation) {
                                cardView.setVisibility(View.GONE);
                            }
                        });
                ivPlayButton.setImageResource(R.drawable.ic_play);
            }
        });

        ivPlayButton.setOnClickListener(v -> {
            if (Boolean.TRUE.equals(musicPlaying[0].getValue())) {
                ivPlayButton.setImageResource(R.drawable.ic_pause);
                musicPlaying[0].setValue(false);
            } else {
                ivPlayButton.setImageResource(R.drawable.ic_play);
                musicPlaying[0].setValue(true);
            }
        });

        final NavHostFragment navHostFragment = (NavHostFragment) getSupportFragmentManager().findFragmentById(R.id.navHostFragment);
        assert navHostFragment != null;
        navController = navHostFragment.getNavController();
        NavigationUI.setupWithNavController(bottomNavigationView, navController);

    }


}

ActivityHome.xml #

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/homePage"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".Home">

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/navHostFragment"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:defaultNavHost="true"
        app:layout_constraintBottom_toTopOf="@+id/bnBotNav"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:navGraph="@navigation/navgraph" />


    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bnBotNav"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        style="@style/SCREEN"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:menu="@menu/bottom_navigation" />

</androidx.constraintlayout.widget.ConstraintLayout>

NAV GRAPH.xml #

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/navgraph"
    app:startDestination="@id/homeFragment">
    <fragment
        android:id="@+id/homeFragment"
        android:name="com.example.synthshine_music.HomeFragment"
        android:label="fragment_home"
        tools:layout="@layout/fragment_home" >
        <action
            android:id="@+id/action_homeFragment_to_searchFragment"
            app:popUpToInclusive="true"
            app:destination="@id/searchFragment" />
        <action
            android:id="@+id/action_homeFragment_to_profileFragment"
            app:popUpToInclusive="true"
            app:destination="@id/profileFragment" />
    </fragment>
    <fragment
        android:id="@+id/searchFragment"
        android:name="com.example.synthshine_music.SearchFragment"
        android:label="fragment_search"
        tools:layout="@layout/fragment_search" >
        <action
            android:id="@+id/action_searchFragment_to_profileFragment"
            app:popUpToInclusive="true"
            app:destination="@id/profileFragment" />
        <action
            android:id="@+id/action_searchFragment_to_homeFragment2"
            app:popUpToInclusive="true"
            app:destination="@id/homeFragment" />
    </fragment>
    <fragment
        android:id="@+id/profileFragment"
        android:name="com.example.synthshine_music.ProfileFragment"
        android:label="fragment_profile"
        tools:layout="@layout/fragment_profile" >
        <action
            android:id="@+id/action_profileFragment_to_homeFragment"
            app:popUpToInclusive="true"
            app:destination="@id/homeFragment" />
        <action
            android:id="@+id/action_profileFragment_to_searchFragment"
            app:popUpToInclusive="true"
            app:destination="@id/searchFragment" />
    </fragment>
</navigation>

HomeFragment.java #

package com.example.synthshine_music;

import android.os.Bundle;

import androidx.fragment.app.Fragment;
import androidx.navigation.NavController;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class HomeFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_home, container, false);
    }
}

内容的提问来源于stack exchange，提问作者Matthias Sunbreeze