我想知道如何从嵌套在材料底部标签栏上的堆栈导航器中的特定屏幕隐藏底部标签栏
这是我的堆栈导航器的代码
import React from 'react';
import { createStackNavigator } from '@react-navigation/stack';
import PondScreen from '../screens/PondScreen/PondScreen';
import PondDetailScreen from '../screens/PondScreen/PondDetailScreen';
const Stack = createStackNavigator();
export function PondStack() {
return (
<Stack.Navigator
initialRouteName="PondScreen"
headerMode="none"
mode="card"
>
<Stack.Screen
name="PondScreen"
component={PondScreen}
/>
<Stack.Screen
name="PondDetailScreen"
component={PondDetailScreen}
options={{
tabBarVisible: false
}}
/>
</Stack.Navigator>
);
}
这是我的材料底部标签导航器的代码
import React from 'react';
import { View } from 'react-native';
import { createMaterialBottomTabNavigator } from '@react-navigation/material-bottom-tabs';
import { Entypo, Feather } from '@expo/vector-icons';
import { PondStack } from './StackNavigators';
import StockScreen from '../screens/StockScreen';
import OrderScreen from '../screens/OrderScreen';
import SettingsScreen from '../screens/SettingsScreen';
const Tab = createMaterialBottomTabNavigator();
export default function BottomTab() {
return (
<Tab.Navigator
labeled={false}
initialRouteName="Pond"
activeColor="#EB3349"
inactiveColor="#888888"
backBehavior="none"
shifting={true}
barStyle={{
backgroundColor: '#FFFFFF'
}}
>
<Tab.Screen
name="Pond"
component={PondStack}
options={{
tabBarIcon: ({ color}) => (
<View style={{ flex: 1 }}>
<Entypo name="air" color={color} size={20} />
</View>
)
}}
/>
<Tab.Screen
name="Stock"
component={StockScreen}
options={{
tabBarIcon: ({ color }) => (
<View style={{ flex: 1 }}>
<Feather name="box" color={color} size={20} />
</View>
)
}}
/>
<Tab.Screen
name="Order"
component={OrderScreen}
options={{
tabBarIcon: ({ color}) => (
<View style={{ flex: 1 }}>
<Feather name="dollar-sign" color={color} size={20} />
</View>
)
}}
/>
<Tab.Screen
name="Settings"
component={SettingsScreen}
options={{
tabBarIcon: ({ color}) => (
<View style={{ flex: 1 }}>
<Feather name="settings" color={color} size={20} />
</View>
)
}}
/>
</Tab.Navigator>
)
}
我目前正在使用Expo构建我的项目。
我的依赖项(package.json)
{
"main": "node_modules/expo/AppEntry.js",
"scripts": {
"start": "expo start",
"android": "expo start --android",
"ios": "expo start --ios",
"web": "expo start --web",
"eject": "expo eject"
},
"dependencies": {
"@react-native-community/masked-view": "^0.1.5",
"@react-navigation/material-bottom-tabs": "^5.0.0",
"@react-navigation/native": "^5.0.0",
"@react-navigation/stack": "^5.0.0",
"@types/react-native": "^0.61.12",
"expo": "~36.0.0",
"react": "~16.9.0",
"react-dom": "~16.9.0",
"react-native": "https://github.com/expo/react-native/archive/sdk-36.0.0.tar.gz",
"react-native-gesture-handler": "~1.5.0",
"react-native-paper": "^3.6.0",
"react-native-raw-bottom-sheet": "^2.0.6",
"react-native-reanimated": "~1.4.0",
"react-native-safe-area-context": "0.6.0",
"react-native-screens": "2.0.0-alpha.12",
"react-native-vector-icons": "^6.6.0",
"react-native-web": "~0.11.7"
},
"devDependencies": {
"@babel/core": "^7.0.0",
"babel-preset-expo": "~8.0.0"
},
"private": true
}
我的标签导航与父标签几乎一样的问题,而与孩子的堆栈导航几乎没有问题,因此无法重新排列屏幕层。因此,我寻找了另一个解决方案,并且从文档中发现,父级导航UI始终显示在子级上。但是该文档还提供了一个很好的示例,说明了如何在子级中更改父级标头。因此,我以该示例为例,以实现标签栏的可见性。这就是我的实现方式。
因此,我有一个带有“主页”,“联系人”和“更多”的标签栏导航,并且在每个标签内都有一个堆栈。我隐藏选项卡的屏幕在CameraView中,而该屏幕是“更多”选项卡中的堆栈屏幕。
- 个人资料
- CameraView(在这里我要隐藏标签栏)
导航:
如您所见,我从一种方法中获得了标签栏的可见性。
<NavigationContainer>
<Tab.Navigator>
<Tab.Screen name="Home" component={HomeNavigation} />
<Tab.Screen name="Contacts" component={ContactNavigation} />
<Tab.Screen
name="More"
component={MoreNavigation}
options={({ route }) => ({
tabBarVisible: this.getTabBarVisibility(route)
})}
/>
</Tab.Navigator>
</NavigationContainer>
方法getTabBarVisibility:
这是我检查路线名称是否为我在StackNavigation中定义的CameraView的地方。
getTabBarVisibility = (route) => {
const routeName = route.state
? route.state.routes[route.state.index].name
: '';
if (routeName === 'CameraView') {
return false;
}
return true;
}
和组件MoreNavigation:
这是我对“更多”的堆栈导航,您可以在其中看到屏幕名称为CameraView。
<Stack.Navigator initialRouteName="More">
<Stack.Screen name="More" component={More}/>
<Stack.Screen name="UserProfile" component={Profile}/>
<Stack.Screen name="CameraView" component={CameraView}/>
</Stack.Navigator>
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