Question

我希望能够使用React Native Navigation v5隐藏屏幕上的标签。

我一直在阅读文档，但似乎他们没有为v5更新此文档，它指的是

这是我的代码：

import Home from './components/Home';
import SettingsScreen from './components/Settings';
import * as React from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
import { createStackNavigator } from '@react-navigation/stack';

const SettingsStack = createStackNavigator();
const ProfileStack  = createStackNavigator();

function SettingsStackScreen() {
    return (
        <SettingsStack.Navigator>
            <SettingsStack.Screen name="Settings" component={SettingsScreen} />
        </SettingsStack.Navigator>
    )
}

function ProfileStackScreen() {
    return (
        <ProfileStack.Navigator>
            <ProfileStack.Screen name="Home" component={Home} />
        </ProfileStack.Navigator>
    )
}

const Tab = createBottomTabNavigator();

export default function App() {
  return (
    <NavigationContainer>
      <Tab.Navigator>
        <Tab.Screen name="Home" component={ProfileStackScreen} />
        <Tab.Screen name="Settings" component={SettingsStackScreen} />
      </Tab.Navigator>
    </NavigationContainer>
  );
}

我尝试过的事情：

访问该功能的选项并以这种方式隐藏。
将tabBar传递给屏幕。

我要的是，在React Navigation v5中隐藏屏幕选项卡的正确方法是什么。

Answer 1

按照文档中的建议进行操作：https://reactnavigation.org/docs/hiding-tabbar-in-screens/

Answer 2

让我们假设您要在输入“设置”时隐藏标签。只需在构造函数中添加导航即可：

function SettingsStackScreen({ navigation ) {
    navigation.setOptions({ tabBarVisible: false })
    return (
        <SettingsStack.Navigator>
            <SettingsStack.Screen name="Settings" component={SettingsScreen} />
        </SettingsStack.Navigator>
    )
}

此代码应该有效。

Answer 3

经过一些试验和研究后，我遇到了这个问题，甚至在官方文档中也找不到解决方案（github中的问题导致链接断开），我为我找到了解决方案。要从底部标签导航器中实现它组件

<Tab.Navigator tabBarOptions={stackOptions} >
  <Tab.Screen
    name={"market"}
    component={MarketNavigator}
    options={navigation => ({
      // tabBarIcon: ,
      tabBarVisible: navigation.route.state.index > 0 ? false : true
    })}
  />
</Tab.Navigator>

希望它可以帮助某人！

Answer 4

您完全有与此相关的API参考。阅读：tabBarVisible

Answer 5

以上答案将帮助您从根导航中删除底部选项卡。如果要从特定屏幕（例如主屏幕或设置屏幕）中删除底部选项卡，则需要动态更改导航选项。

要动态更改导航选项，您将需要以下概念：

React.Context
useNavigationState

上下文-将动态更改navigationOption值，即是否隐藏底部的Tab。我们可以选择MobX或Redux来做同样的事情。

UseNavigationState -将帮助上下文了解用户位于哪个屏幕。

我们需要在一个单独的.js文件中创建上下文，以便Home.js和Settings.js可以在所有其他屏幕上访问它。

import * as React from 'react';
import { View, Text } from 'react-native'
import { NavigationContainer, useNavigationState, useRoute } from '@react-navigation/native';
const Tab = createBottomTabNavigator();
const Context = React.createContext();

import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
import { createStackNavigator } from '@react-navigation/stack';
import { TouchableOpacity } from 'react-native-gesture-handler';


const SettingsStack = createStackNavigator();
const ProfileStack = createStackNavigator();

function SettingsScreen({ navigation }) {
  return (
    <View>
      <Text>
        Setting
      </Text>
    </View>
  );
}

function Home({ navigation }) {
  const rout = useNavigationState(state => state);
  const { screen, setScreen } = React.useContext(Context);
  setScreen(rout.index);
  return (
    <View>
      <TouchableOpacity
        onPress={() => {
          navigation.navigate("Settings");
        }}
      >
        <Text>
          Home
        </Text>
      </TouchableOpacity>
    </View>
  );
}

function SettingsStackScreen({ navigation }) {
  return (
    <SettingsStack.Navigator>
      <SettingsStack.Screen name="Settings" component={SettingsScreen} />
    </SettingsStack.Navigator>
  )
}

function ProfileStackScreen({ navigation }) {
  const { screen, setScreen } = React.useContext(Context)
  if (screen == 0) {
    navigation.setOptions({ tabBarVisible: true })
  } else {
    navigation.setOptions({ tabBarVisible: false })
  }
  return (
    <ProfileStack.Navigator>
      <ProfileStack.Screen name="Home" component={Home} />
      <ProfileStack.Screen name="Settings" component={SettingsScreen} />
    </ProfileStack.Navigator>
  )
}

function BottomNav({ navigation }) {
  return (
    <Tab.Navigator>
      <Tab.Screen name="Home" component={ProfileStackScreen} />
      <Tab.Screen name="Settings" component={SettingsStackScreen} />
    </Tab.Navigator>
  );
}


export default function App() {
  const [screen, setScreen] = React.useState(0);

  return (
    <Context.Provider value={{ screen, setScreen }}>
      <NavigationContainer>
        <BottomNav />
      </NavigationContainer>
    </Context.Provider>
  );
}

此处的屏幕是一个标志，用于检查导航的索引并删除ProfileStackScreen中堆叠的所有屏幕的底部导航。

Answer 6

使用您寻找可见的嵌套屏幕，然后应隐藏选项卡栏选项，而不是在StackNavigator功能中使用此简单条件。

  function HistoryStack({navigation, route}) {
if (route.state.index === 0) {
 navigation.setOptions({tabBarVisible: true});
 } else {
 navigation.setOptions({tabBarVisible: false});
}
return (
<Historys.Navigator initialRouteName={Routes.History}>
  <Historys.Screen
    name={Routes.History}
    component={History}
    options={{headerShown: false}}
  />
  <Historys.Screen
    name={Routes.HistoryDetails}
    component={HistoryDetails}
    options={{headerShown: false}}
  />
</Historys.Navigator>
  );
}

Answer 7

您将必须通过将Tab导航器嵌套在Stack Navigator中来重组导航。请按照此处的详细信息hiding-tabbar-in-screens

这样，您的Tab导航器中仍可以嵌套一个堆栈导航器。 SettingsStack

当用户在“设置”屏幕以及“更新详细信息”屏幕上时，该标签栏可见，而在“个人资料”屏幕上该标签栏不可见。

import Home from './components/Home';
import Settings from './components/Settings';
import UpdateDetails from './components/UpdateDetails';
import Profile from './components/Profile';

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

const Stack = createStackNavigator();
const StackSettings = createStackNavigator();
const Tab = createBottomTabNavigator();

function SettingsStack() {
    return (
        <StackSettings.Navigator>
            <StackSettings.Screen name="Settings" component={Settings} />
            <StackSettings.Screen name="UpdateDetails" component={UpdateDetails} />
        </StackSettings.Navigator>
    )
}

function HomeTabs() {
  return (
    <Tab.Navigator>
      <Tab.Screen name="Home" component={Home} />
      <Tab.Screen name="Settings" component={SettingsStack} />
    </Tab.Navigator>
  );
}


export default function App() {
  return (
    <NavigationContainer>
      <Stack.Navigator>
        <Stack.Screen name="Home" component={HomeTabs} />
        <Stack.Screen name="Profile" component={Profile} />
      </Stack.Navigator>
    </NavigationContainer>
  );
}

Answer 8

import { createBottomTabNavigator } from "@react-navigation/bottom-tabs"; // version 5.6.1
import { createStackNavigator } from "@react-navigation/stack"; // version 5.6.2

从我的检查中，当您导航/推入第二个屏幕时，navigation.routes.state.index将具有一个值，因此我创建了一个函数

const shouldTabBarVisible = (navigation) => {
  try {
    return navigation.route.state.index < 1;
  } catch (e) {
    return true;
  }
};

并在BottomTab.Screen选项中调用

<BottomTab.Navigator
    initialRouteName='Home'
    tabBarOptions={{
        activeTintColor: "#1F2B64",
        showLabel: false,
    }}
>
    <BottomTab.Screen
        name='Home'
        component={HomeNavigator}
        options={(navigation) => ({
            tabBarIcon: ({ color }) => <TabBarIcon name='home' color={color} />,
            tabBarVisible: shouldTabBarVisible(navigation),
        })}
    />
</BottomTab.Navigator>

React Navigation V5隐藏底部选项卡

8 个答案: