javascript - 有没有办法删除世博会每个屏幕上的标题？

Question

我是react-native的初学者，我按照youtube上的教程做项目。我正在尝试制作一个 expo ui-app，但每个屏幕的顶部都有一个标题，如下所示:

屏幕上方有Explore字样，其他屏幕上方也有相应的标题。有没有办法删除它？因为我关注了 youtube 上的教程，但他们没有这个标题。

这是 Explore.js 文件:

import { StyleSheet, Text, View, SafeAreaView, TextInput, Platform, StatusBar } from 'react-native';
import React, { Component } from 'react';
import { Ionicons } from '@expo/vector-icons';


class Explore extends Component {

  componentWillMount() {
    this.startHeaderHeight = 80
    if(Platform.OS == 'android')
    {
      this.startHeaderHeight = 100 + StatusBar.currentHeight
    }
  }

  render() {
   return (
    <SafeAreaView style={{ flex: 1 }}>
      <View style={{ flex: 1 }}>
        <View style={{ height: this.startHeaderHeight, backgroundColor: 'white', borderBottomWidth: 1, borderBottomColor: '#dddddd' }}>
          <View style={{flexDirection: 'row', padding: 10, backgroundColor: 'white', marginHorizontal: 20, shadowOffset:{width:0,height:0}, shadowColor: 'black', shadowOpacity: 0.2, elevation: 1, marginTop: Platform.OS == 'android' ? 30 : 20 }}>
            <Ionicons name="ios-search" size={20} color="black" />
            <TextInput 
              underlineColorAndroid="transparent"
              placeholder='Try Indonesia'
              placeholderTextColor="grey"
              style={{ flex: 1, fontWeight: '700', backgroundColor: 'white', marginLeft: 10 }}            
            />
          </View>
        </View>
      </View>
    </SafeAreaView>
    );
  }
}
export default Explore;


const styles = StyleSheet.create({
    container: {
      flex: 1,
      backgroundColor: '#fff',
      alignItems: 'center',
      justifyContent: 'center',
    },
  });

这是我的 app.js 文件:

import React from 'react';
import { StyleSheet, Text, View, Image } from 'react-native';
import { NavigationContainer } from '@react-navigation/native';
import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
import { Ionicons } from '@expo/vector-icons';
import { FontAwesome5 } from '@expo/vector-icons'; 


import Explore from './screens/Explore';
import Saved from './screens/Saved';
import Trips from './screens/Trips';
import Inbox from './screens/Inbox';

const Tab = createBottomTabNavigator();

export default function BottomTabs() {
  return (
    <NavigationContainer>

      <..... CODE OF THE BOTTOM TAB NAVIGATOR IN HERE .....>

    </NavigationContainer>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
  },
});

Answer 1

David Scholz 的解决方案适用于单个屏幕。如果你想在导航器的所有子屏幕上禁用标题，你可以使用

  screenOptions={{ headerShown: false }}

作为 Tab.Navigator 或任何顶级导航器的 Prop 。