在Android Studio中将底部导航栏与其他代码合并

<com.google.android.material.bottomnavigation.BottomNavigationView
    android:id="@+id/bottomNavigationView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    app:menu="@menu/bottom_navigation_menu" />

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/navigation_home"
        android:icon="@drawable/ic_home"
        android:title="Home" />
    <item
        android:id="@+id/navigation_dashboard"
        android:icon="@drawable/ic_dashboard"
        android:title="Dashboard" />
    <item
        android:id="@+id/navigation_notifications"
        android:icon="@drawable/ic_notifications"
        android:title="Notifications" />
</menu>

BottomNavigationView bottomNavigationView = findViewById(R.id.bottomNavigationView);
bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
    @Override
    public boolean onNavigationItemSelected(@NonNull MenuItem item) {
        // 处理底部导航栏选中项的逻辑
        switch (item.getItemId()) {
            case R.id.navigation_home:
                // 处理Home选中项的逻辑
                break;
            case R.id.navigation_dashboard:
                // 处理Dashboard选中项的逻辑
                break;
            case R.id.navigation_notifications:
                // 处理Notifications选中项的逻辑
                break;
        }
        return true;
    }
});