android - 如何删除导航 UI（Jetpack 导航组件）的交叉淡入淡出动画？

Question

所以我设置了带有导航 UI的底部导航视图。（导航组件） 在下面的代码中，我有一个底部导航视图和片段容器视图。

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

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

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottom_navigation_view"
        style="@style/Widget.MaterialComponents.BottomNavigationView"
        android:layout_width="0dp"
        android:layout_height="@dimen/_48sdp"
        app:itemBackground="?android:windowBackground"
        app:itemIconTint="@drawable/navigation_selector"
        app:labelVisibilityMode="unlabeled"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:menu="@menu/bottom_nav_menu" />

</androidx.constraintlayout.widget.ConstraintLayout>

下面是上述xml代码的java代码

public class MainActivity extends AppCompatActivity {

    private ActivityMainBinding activityMainBinding;

    private NavController navController;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        activityMainBinding = ActivityMainBinding
                .inflate(getLayoutInflater());

        setContentView(activityMainBinding.getRoot());

        NavHostFragment navHostFragment =
                (NavHostFragment) getSupportFragmentManager()
                        .findFragmentById(R.id.fragment_container_view);


        if (navHostFragment != null) {

            navController = navHostFragment.getNavController();

            NavigationUI.setupWithNavController(
                    activityMainBinding.bottomNavigationView, navController
            );

        }

    }

}

所以我面临的问题是以某种方式删除从底部导航更改片段时发生的交叉淡入淡出动画。这看起来很奇怪，因为我的每个片段布局中都有自定义工具栏。

标签： androidandroid-jetpackandroid-jetpack-navigation