我正在使用 React Native 构建一个应用程序,并有一个登录、主页和会员屏幕。当用户是管理员时,我让他进入主屏幕,当他是会员时,我让他进入会员屏幕。在主屏幕内,我还有 AddMember 屏幕,因此我在堆栈导航内构建堆栈导航和抽屉导航以导航到这些屏幕。App.js 代码:
import 'react-native-gesture-handler';
import React from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createNativeStackNavigator } from '@react-navigation/native-stack';
import { createDrawerNavigator } from '@react-navigation/drawer';
import LoginScreen from './screens/LoginScreen';
import HomeScreen from './screens/HomeScreen';
import MembersScreen from './screens/MembersScreen';
import AddMember from './screens/AddMember';
const Stack = createNativeStackNavigator();
const Drawer = createDrawerNavigator();
function Root() {
return (
<Drawer.Navigator>
{/* <Drawer.Screen name="Home" component={HomeScreen} /> */}
<Drawer.Screen name="AddMember" component={AddMember} />
</Drawer.Navigator>
);
}
export default function App() {
return (
<NavigationContainer>
<Stack.Navigator>
<Stack.Screen name="Login" component={LoginScreen} />
<Stack.Screen
name="Root"
component={Root}
options={{ headerShown: false }}
/>
{/* <Stack.Screen name="Home" component={HomeScreen} /> */}
<Stack.Screen name="Members" component={MembersScreen} />
</Stack.Navigator>
</NavigationContainer>
);
}
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和登录屏幕
import { useNavigation } from '@react-navigation/core';
import React, { useEffect, useState } from 'react';
import { StyleSheet, Text, TextInput, TouchableOpacity, View } from 'react-native';
import {
auth,
signInWithEmailAndPassword,
onAuthStateChanged,
db,
collection,
getDocs
} from '../firebase';
export default function LoginScreen() {
const [email , setEmail ] = useState('');
const [password , setPassword ] = useState('');
const navigation = useNavigation();
useEffect(() => {
const unsibscribe = onAuthStateChanged(auth, (user) => {
if(user) {
handleCheckAdmin(user.email);
}
});
return unsibscribe;
}, []);
const hanldeLogin = async () => {
await signInWithEmailAndPassword(auth, email, password)
.then(userCredentials => {
const user = userCredentials.user;
})
.catch(error => alert(error.message));
}
const handleCheckAdmin = async (userEmail) => {
try {
const admins = collection(db, 'admin');
const adminSnapshot = await getDocs(admins);
const adminList = adminSnapshot.docs.map(doc => doc.get("adminEmail"));
adminList.forEach(adEmail => {
if (adEmail === userEmail) {
navigation.replace('Root');
}
else {
navigation.replace('Members');
}
});
} catch (error) {
console.log(error);
}
}
return (
<View
style={styles.container}
behavior="padding"
>
<View style={styles.inputContainer}>
<TextInput
placeholder="Email"
value={email}
onChangeText={ text => setEmail(text)}
style={styles.input}
/>
<TextInput
placeholder="Password"
value={password}
onChangeText={ text => setPassword(text)}
style={styles.input}
secureTextEntry
/>
</View>
<View style={styles.buttonContainer}>
<TouchableOpacity
onPress={hanldeLogin}
style={styles.button}
>
<Text style={styles.buttonText}>Login</Text>
</TouchableOpacity>
</View>
</View>
)
}
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我的问题是,当我运行应用程序并在主屏幕中登录时,我收到此错误:RNGestureHandlerModule.attach Gesture Handler getting 3arguments,expected 2。
我在降级 expo SDK 时开始遇到这个问题。我只是通过运行来解决它expo install react-native-gesture-handler
。这样,expo 将针对您当前的 SDK 处理反应原生手势处理程序的最佳版本。希望能帮助到你!
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