React本机BottomTabNavigator删除空格

import React from 'react';
import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
import { NavigationContainer } from '@react-navigation/native';

const Tab = createBottomTabNavigator();

function HomeScreen() {
  return null;
}

function SettingsScreen() {
  return null;
}

export default function App() {
  return (
    <NavigationContainer>
      <Tab.Navigator
        screenOptions={({ route }) => ({
          tabBarIcon: ({ color, size }) => {
            let iconName;

            if (route.name === 'Home') {
              iconName = 'home';
            } else if (route.name === 'Settings') {
              iconName = 'settings';
            }

            return <MaterialCommunityIcons name={iconName} color={color} size={size} />;
          },
        })}
        tabBarOptions={{
          showLabel: false,
          style: {
            paddingVertical: 0,
            paddingHorizontal: 0,
          },
          tabStyle: {
            marginHorizontal: 0,
          },
        }}
      >
        <Tab.Screen name="Home" component={HomeScreen} />
        <Tab.Screen name="Settings" component={SettingsScreen} />
      </Tab.Navigator>
    </NavigationContainer>
  );
}