react-native-tab-view 导航栏切换插件讲解

首先引入插件

yarn add react-native-tab-view

如果用的原生环境要安装另外几个插件

yarn add react-native-reanimated react-native-gesture-handler

如果用的expo要安装

expo install react-native-gesture-handler react-native-reanimated

安装一个即可

如果你用的6.1以上的版本就直接安装完了

接着直接在app.js copy如下代码

import * as React from 'react';
import { View, StyleSheet, Dimensions } from 'react-native';
import { TabView, SceneMap } from 'react-native-tab-view';

const FirstRoute = () => (
  <View style={[styles.scene, { backgroundColor: '#ff4081' }]} />
);

const SecondRoute = () => (
  <View style={[styles.scene, { backgroundColor: '#673ab7' }]} />
);

const initialLayout = { width: Dimensions.get('window').width };

export default function TabViewExample() {
  const [index, setIndex] = React.useState(0);
  const [routes] = React.useState([
    { key: 'first', title: 'First' },
    { key: 'second', title: 'Second' },
  ]);

  const renderScene = SceneMap({
    first: FirstRoute,
    second: SecondRoute,
  });

  return (
    <TabView
      navigationState={{ index, routes }}
      renderScene={renderScene}
      onIndexChange={setIndex}
      initialLayout={initialLayout}
    />
  );
}

const styles = StyleSheet.create({
  scene: {
    flex: 1,
  },
});

　　

直接就能显示出tabbar的效果了

贴出官方git链接

https://github.com/react-native-community/react-native-tab-view