我正在编写一个反应本机 MERN 聊天应用程序,并且我正在添加一个个人资料页面,以便用户可以编辑或添加他的数据。 我想通过按钮并使用 useNavigation 访问此页面,但出现我在标题中提到的错误 注意:该按钮位于导航容器内 我的代码:
import React from 'react';
import storage from './storage';
import { useNavigation } from '@react-navigation/native'
import { NavigationContainer, Screen } from '@react-navigation/native';
import { createNativeStackNavigator } from '@react-navigation/native-stack';
import { LogBox, ActivityIndicator, Button, TouchableOpacity, View } from 'react-native';
import { Menu, MenuItem, MenuDivider } from 'react-native-material-menu';
import Icon from 'react-native-vector-icons/Entypo';
import ProfileScreen from './Profile.Screen';
//rest of the imports...
export default function App() {
const [savedData, setSavedData] = React.useState(null)
const [fetching, setFetching] = React.useState(false)
const [receiver, setReceiver] = React.useState(null)
const [visible, setVisible] = React.useState(false);
const navigation = useNavigation();
//rest of the code...
return (
<ThemeProvider>
<NavigationContainer>
<Stack.Navigator>
{isSignedIn && <>
<Stack.Screen name="Home" component={ChatList} initialParams={params} options={() => ({
title: "myApp", headerRight:
() => (
<View style={{ marginRight: 3 }}>
<Menu
visible={visible}
anchor={
<Icon
name="dots-three-vertical"
size={20}
color="black"
onPress={() => setVisible(true)}
/>
}
onRequestClose={() => setVisible(false)}
>
<MenuItem onPress={navigation.navigate('Profile')}>My Profile</MenuItem> {/* this is the line*/}
<MenuItem onPress={changeTheme}>Change Theme</MenuItem>
<MenuItem onPress={() => handleLogout(user)}>Log Out</MenuItem>
</Menu>
</View>
)
})} />
<Stack.Screen name="Chat" component={Chat} initialParams={params} options={() => ({ title: receiver })} />
<Stack.Screen name="Users" component={UsersScreen} initialParams={params} />
<Stack.Screen name="Profile" component={ProfileScreen} initialParams={params} options={{ title: 'My Profile' }} />
</>}
{!isSignedIn && <>
<Stack.Screen name="SignIn" component={SignInScreen} initialParams={{ onSignIn }} options={() => ({ title: "myApp" })} />
<Stack.Screen name="ForgotPassword" component={ForgetPassword} />
</>}
</Stack.Navigator>
</NavigationContainer>
</ThemeProvider>
)
}
我尝试删除引号(我在某个地方将其视为解决方案)(而不是
navigation.navigate('Profile')
我用了
navigation.navigate(Profile)
我尝试删除 onPress 函数,但仍然收到错误
const navigation = useNavigation()
我尝试在 NavigationContainer 旁边导入 useNavigation 但没有任何效果
我知道如果没有菜单,这会起作用,我怎样才能用菜单做到这一点 (注意:我知道它应该被 navigationContainer 包装,但我不知道如何)
您似乎错过了线路
const Stack = createNativeStackNavigator();
也不需要
const navigation = useNavigation();
你可以在选项回调中获取它
<Stack.Screen name="Home" component={ChatList} initialParams={params} options={(navigation) => ({ title: "myApp", headerRight: // rest of your code