我有以下代码库
世博链接
https://snack.expo.io/@mparvez19861/redux-example
app.js
<Provider store={store}>
<View style={styles.container}>
<Navigator />
</View>
</Provider>
Navigator.js
const AuthStack = createStackNavigator({
// { SignIn: SignInScreen }
// SignIn: { screen: EmailPwdLogin }
Login: { screen: LoginScreen },
Signup: { screen: SignupScreen },
});
const drNav = createDrawerNavigator(
{
Screen2: {
screen: Screen2
},
SignOut: {
screen: SignOutScreen
}
}
)
export default createAppContainer(createSwitchNavigator(
{
// screendesign: screendesign,
SplashScreen: SplashScreen,
App: drNav,
AuthStack: AuthStack
},
{
initialRouteName: 'SplashScreen',
}
));
login.js
import React, { Component } from 'react';
import { StyleSheet, View, Text, TextInput, Button, Alert } from 'react-native';
import { NavigationActions } from 'react-navigation';
import firebase from 'react-native-firebase';
import { connect } from 'react-redux';
import { getUserData, watchUserLogin } from '../redux/app-redux';
const mapStateToProps = (state) => {
return {
userData: state.userData,
};
}
const mapDispatchToProps = (dispatch) => {
return {
getUserData: (user) => { dispatch(getUserData(user)) },
};
}
class LoginScreen extends Component {
constructor(props) {
super(props);
this.state = {
userData: null,
email: "",
password: "",
};
}
onLoginPress = () => {
firebase.auth().signInWithEmailAndPassword(this.state.email, this.state.password)
.then((user) => {
//this.state.userData = user;
this.setState({ userData: user })
this.onGetUserData(user);
// this.props.navigation.navigate("friendsOnWay");
}, (error) => { Alert.alert(error.message); });
}
onGetUserData = (user) => {
this.props.getUserData(user);
}
onCreateAccountPress = () => {
// var navActions = NavigationActions.reset({
// index: 0,
// actions: [NavigationActions.navigate({routeName: "Signup"})]
// });
// this.props.navigation.dispatch(navActions);
// this.props.navigation.navigate("Signup");
}
render() {
return (
<View style={{ paddingTop: 50, alignItems: "center" }}>
<Text>Login</Text>
<TextInput style={{ width: 200, height: 40, borderWidth: 1 }}
value={this.state.email}
onChangeText={(text) => { this.setState({ email: text }) }}
placeholder="Email"
keyboardType="email-address"
autoCapitalize="none"
autoCorrect={false}
/>
<View style={{ paddingTop: 10 }} />
<TextInput style={{ width: 200, height: 40, borderWidth: 1 }}
value={this.state.password}
onChangeText={(text) => { this.setState({ password: text }) }}
placeholder="Password"
secureTextEntry={true}
autoCapitalize="none"
autoCorrect={false}
/>
<Button title="Login" onPress={this.onLoginPress} />
<Button title="Create account..." onPress={this.onCreateAccountPress} />
</View>
);
}
}
const styles = StyleSheet.create({
});
export default connect(mapStateToProps, mapDispatchToProps)(LoginScreen);
抛出错误
TypeError:TypeError:undefined不是函数(计算'(0,_react.useMemo)')
此错误位于以下位置:在SceneView中的SceneFine(由SceneView创建)(在StackViewLayout.js:784中)在RCTView(在View.js:45)中的视图(在StackViewLayout.js:783)中的RCTView(在View.js中) :45)在视图(在StackViewLayout.js:782)的RCTView(在View.js:45)中的视图(在createAnimatedComponent.js:153)中的AnimatedComponent(在StackViewCard.js:69)在RCTView中(在View.js上) :45)在View中(在createAnimated.js:153)的AnimatedComponent(at screens.native.js:59)中,在Screen(在StackViewCard.js:57)的Card中(在createPointerEventsContainer.js:27)在Container中(在StackViewLayout)在视图中的RCTView(在View.js:45)的ScreenContainer(在StackViewLayout.js:311)中的视图(在屏幕上,在屏幕上,在屏幕上,在View.js:83处)中的RCTView(在View.js:45处)(.js:860)在createAnimatedComponent.js:153)中的AnimatedComponent(在StackViewLayout.js:307)中的PanGestureHandler(在StackViewLayout.js:300)StackViewLayout(at withOrientation.js:30)in withOrientation(at StackView.js:79)in RCTView(在View.js:45)in View(在Tran sitioner.js:214)在TransitionView中的Stacker(在StackView.js:22中),在NavView中的Navigator中创建的(在createKeyboardAwareNavigator.js:12中),在SwitchView中的SceneView(由SwitchView创建)的KeyboardAwareNavigator(由SceneView创建)中。在导航器中创建的Navigator(在createAppContainer.js:388中)在NavigationContainer(在App.js:94)的RCTView(在View.js:45)中在View(在App.js:93)的Provider中(在App。在视图中的RCTView(在View.js:45)中的视图(在AppContainer.js:98中)的RCTView(在View.js:45)中的应用程序(在renderApplication.js:34)中的js:92)(在AppContainer中)。 js:115)在AppContainer中(在renderApplication.js:33)
此错误位于以下位置:位于应用程序中的提供程序(位于App.js:92)中的视图(位于App.js:93)中的RCTView(位于View.js:45)中的NavigationContainer(位于App.js:94) renderApplication.js:34)在RCTView(在View.js:45)的视图中(在AppContainer.js:98)在RCTView(在View.js:45)的视图中(在AppContainer.js:115)在AppContainer中(在renderApplication.js:33)ConnectFunction D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-redux \ lib \ components \ connectAdvanced.js:131:41 updateFunctionComponent D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:11441:29 updateSimpleMemoComponent D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js :11352:4 updateMemoComponent D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:11224:8 beginWork D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \反应母语\库\渲染\ oss \ ReactNativeRenderer-dev.js:12824:8 performUnitOfWork D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:16075:21 workLoop D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:16115:41 renderRoot D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:16219:15 performWorkOnRoot D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:17198:17 performWork D :\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:17099:24 performSyncWork D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:17060:14 requestWork D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.j s:16925:19 scheduleWork D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:16724:16 scheduleRootUpdate D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:17413:15 updateContainerAtExpirationTime D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer- dev.js:17447:28 updateContainer D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:17537:4 render D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ Renderer \ oss \ ReactNativeRenderer-dev.js:18191:20 renderApplication D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ ReactNative \ renderApplication。 js:59:34运行D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ ReactNative \ AppRegistry.js:101:10 runApplication D:\ Rnd \ React Nat ive \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ ReactNative \ AppRegistry.js:195:26 __callFunction D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ BatchedBridge \ MessageQueue.js: 366:47 D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ BatchedBridge \ MessageQueue.js:106:26 __guard D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ BatchedBridge \ MessageQueue.js:314:10 callFunctionReturnFlushedQueue D:\ Rnd \ React Native \ Project \ WhoAroundMe \ node_modules \ react-native \ Libraries \ BatchedBridge \ MessageQueue.js:105:17
我做错了请帮忙
版本7.0.1的redux-sagas“现在要求最小React版本为16.8.4或更高版本。”
我有同样的问题,我使用react-native版本0.58.6和react-redux版本6.0.1,它运作良好。
我得到了同样的错误。我更新了我的版本以进行反应并对原始版本以及redux和react-redux做出反应。它解决了。希望也适合你。