我想在我的基于 React Native 的应用程序中使用 Redux 框架来实现 Facebook 登录(我现在正在学习 Redux)。我正在寻找有关如何构建 Facebook 登录代码以使用 redux 的建议。更具体地说,我应该创建哪些操作、 reducer 和存储?
下面是我的应用程序中当前基于 Facebook 的登录代码(它不使用 redux 结构)。为了简单起见,我删除了不相关的代码:
index.ios.js
class ProjectXApp extends React.Component {
constructor(props) {
// Set the use to NULL
this.state = {
user: null,
};
}
handleLogin(user) {
this.setState({
// Update the user state once the login is complete
user,
});
}
renderScene(route, navigator) {
const Component = route.component;
return (
<View style={styles.app}>
<Component
user={this.state.user}
navigator={navigator}
route={route}
/>
</View>
);
}
render() {
return (
<Navigator
renderScene={this.renderScene.bind(this)}
initialRoute={{
// Render the Login page in the beginning
component: Login,
props: {
onLogin: this.handleLogin.bind(this),
},
}}
/>
);
}
}
登录.js
// Import Facebook Login Util Component
class Login extends React.Component {
constructor(props) {
super(props);
this.state = {
// 'false' means responseToken is not required. 'true' means responseToken is required
responseToken: false,
};
}
// This method gets the fb access token, if the token is returned then
// I render the Main App component (switchToMain method). If the
// access token is not returned then I render a login Button (Refer to render method)
async getAccessToken() {
let _this = this;
await (FBSDKAccessToken.getCurrentAccessToken((token) => {
if(!token) {
_this.setState({responseToken: true})
return;
}
_this.setState({responseToken: true});
_this.props.route.props.onLogin({user: true});
_this.switchToMain();
}));
}
switchToMain() {
this.props.navigator.push({
component: Main, // Render the app
props: {
onLogOut: this.onLogOut.bind(this)
}
});
}
componentDidMount() {
this.getAccessToken();
}
onLoginButtonPress() {
// Shows transition between login and Main Screen
this.setState({responseToken: false})
FBSDKLoginManager.logInWithReadPermissions(['public_profile','email','user_friends'], (error, result) => {
if (error) {
alert('Error logging in');
} else {
if (result.isCancelled) {
alert('Login cancelled');
} else {
this.setState({result});
this.getAccessToken();
}
}
});
}
onLogOut() {
this.setState({responseToken: true});
}
render() {
// This component renders when I am calling getAccessToken method
if(!this.state.responseToken) {
return (
<Text></Text>
);
}
// This renders when access token is not available after calling getAccessToken
return (
<View style={styles.container}>
<TouchableHighlight
onPress={this.onLoginButtonPress.bind(this)}
>
<View>
// Login Button
</View>
</TouchableHighlight>
</View>
);
}
}
// Removed the styling code
注销.js
import { FBSDKLoginManager } from 'react-native-fbsdklogin';
class Logout extends React.Component {
onLogOut() {
FBSDKLoginManager.logOut();
this.props.onLogOut();
this.props.navigator.popToTop();
}
render() {
return (
<View>
<TouchableHighlight
onPress={this.onLogOut.bind(this)}
>
<View
// Styles to create Logout button
</View>
</TouchableHighlight>
</View>
);
}
});
// Removed the styling code
最佳答案
关于react-native - 使用react native和redux实现FB登录,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34666947/