我已经验证了我的用户，我有一个uid。但是当我尝试使用Firebase中建议的代码写入数据库时，
var isNewUser = true;
var ref = new Firebase("https://<YOUR-FIREBASE-APP>.firebaseio.com");
ref.onAuth(function(authData) {
if (authData && isNewUser) {
// save the user's profile into the database so we can list users,
// use them in Security and Firebase Rules, and show profiles
ref.child("users").child(authData.uid).set({
provider: authData.provider,
name: getName(authData)
});
}
});
// find a suitable name based on the meta info given by each provider
function getName(authData) {
switch(authData.provider) {
case 'password':
return authData.password.email.replace(/@.*/, '');
case 'twitter':
return authData.twitter.displayName;
case 'facebook':
return authData.facebook.displayName;
}
}
我返回onAuth不是函数的错误。
我认为通过道具传递Firebase可能是一个问题，因此注销了几条路径以查看我是否可以找到函数onAuth但不能。有什么建议？由于我只是测试相关代码，可以在account.js中找到n componentWillMount函数。
登录。 JS
'use strict';
import {
AppRegistry,
Text,
TextInput,
View,
TouchableHighlight,
ToolbarAndroid,
ActivityIndicator
} from 'react-native';
import React, {Component} from 'react';
import Signup from './Signup';
import Account from './Account';
import styles from '../styles/baseStyles.js';
export default class Login extends Component {
constructor(props){
super(props);
// We have the same props as in our signup.js file and they serve the same purposes.
this.state = {
loading: false,
email: '',
password: ''
}
}
render() {
// The content of the screen should be inputs for a username, password and submit button.
// If we are loading then we display an ActivityIndicator.
const content = this.state.loading ? <ActivityIndicator size="large"/> :
<View>
<TextInput
style={styles.textInput}
onChangeText={(text) => this.setState({email: text})}
value={this.state.email}
placeholder={"Email Address"} />
<TextInput
style={styles.textInput}
onChangeText={(text) => this.setState({password: text})}
value={this.state.password}
secureTextEntry={true}
placeholder={"Password"} />
<TouchableHighlight onPress={this.login.bind(this)} style={styles.primaryButton}>
<Text style={styles.primaryButtonText}>Login</Text>
</TouchableHighlight>
<TouchableHighlight onPress={this.goToSignup.bind(this)} style={styles.transparentButton}>
<Text style={styles.transparentButtonText}>New here?</Text>
</TouchableHighlight>
</View>;
// A simple UI with a toolbar, and content below it.
return (
<View style={styles.container}>
<View style={styles.body}>
{content}
</View>
</View>
);
}
login(){
this.setState({
loading: true
});
// Log in and display an alert to tell the user what happened.
this.props.firebaseApp.auth().signInWithEmailAndPassword(this.state.email, this.state.password
).then((userData) =>
{
this.setState({
loading: false,
username:"mone"
});
this.props.navigator.push({
component: Account
});
}
).catch((error) =>
{
this.setState({
loading: false
});
alert('Login Failed. Please try again' + error.message);
});
}
// Go to the signup page
goToSignup(){
this.props.navigator.push({
component: Signup
});
}
}
AppRegistry.registerComponent('Login', () => Login);
main.js
import React, { Component } from 'react';
'use strict';
import {
AppRegistry,
Text,
StyleSheet,
ActivityIndicator,
View,
Navigator,
} from 'react-native';
import Login from '../login/pages/Login';
import Account from '../login/pages/Account';
import * as firebase from 'firebase';
const firebaseConfig ={
apiKey: "AIzaSyAaJuCW0nsMLqi-ke6K_bTDhBujilgWneQ",
authDomain: "test-app-657c0.firebaseapp.com",
databaseURL: "https://test-app-657c0.firebaseio.com",
storageBucket: "test-app-657c0.appspot.com",
messagingSenderId: "215519929651"
};
const firebaseApp = firebase.initializeApp(firebaseConfig);
import styles from '../login/styles/baseStyles.js';
class Main extends Component {
constructor(props){
super(props);
this.state = {
// the page is the screen we want to show the user, we will determine that
// based on what user the firebase apI returns to us.
page: null
};
}
componentWillMount(){
// We must asynchronously get the auth state, if we use currentUser here, it'll be null
const unsubscribe = firebaseApp.auth().onAuthStateChanged((user) => {
// If the user is logged in take them to the accounts screen
if (user != null) {
this.setState({page: Account});
return;
}
// otherwise have them login
this.setState({page: Login});
// unsubscribe this observer
unsubscribe();
});
}
render() {
if (this.state.page) {
return (
// Take the user to whatever page we set the state to.
// We will use a transition where the new page will slide in from the right.
<Navigator
initialRoute={{component: this.state.page}}
configureScene={() => {
return Navigator.SceneConfigs.FloatFromRight;
}}
renderScene={(route, navigator) => {
if(route.component){
// Pass the navigator the the page so it can navigate as well.
// Pass firebaseApp so it can make calls to firebase.
return React.createElement(route.component, { navigator, firebaseApp});
}
}} />
);
} else {
return (
// Our default loading view while waiting to hear back from firebase
<View style={styles.container}>
<View style={styles.body}>
<ActivityIndicator size="large" />
</View>
</View>
);
}
}
}
module.exports = Main;
帐户
'use strict';
import {
AppRegistry,
StyleSheet,
Text,
View,
Image,
TouchableHighlight,
ToolbarAndroid
} from 'react-native';
import React, {Component} from 'react';
import Login from './Login';
import styles from '../styles/baseStyles.js';
// Styles specific to the account page
const accountStyles = StyleSheet.create({
email_container: {
padding: 20
},
email_text: {
fontSize: 18
}
});
export default class Account extends Component {
constructor(props) {
super(props);
this.state = {
loading: true,
}
}
componentWillMount() {
// get the current user from firebase
const userData = this.props.firebaseApp.auth().currentUser;
this.setState({
user: userData,
loading: false
});
console.log(userData);
console.log(this.props.firebaseApp)
console.log(this.props.firebaseApp.auth())
var isNewUser = true;
var ref = this.props.firebaseApp;
ref.onAuth(function(authData) {
if (authData && isNewUser) {
// save the user's profile into the database so we can list users,
// use them in Security and Firebase Rules, and show profiles
ref.child("users").child(authData.uid).set({
provider: authData.provider,
name: getName(authData)
});
}
});
// find a suitable name based on the meta info given by each provider
function getName(authData) {
switch(authData.provider) {
case 'password':
return authData.password.email.replace(/@.*/, '');
case 'twitter':
return authData.twitter.displayName;
case 'facebook':
return authData.facebook.displayName;
}
}
}
render() {
// If we are loading then we display the indicator, if the account is null and we are not loading
// Then we display nothing. If the account is not null then we display the account info.
const content = this.state.loading ? <ActivityIndicator size="large"/> :
this.state.user &&
<View style={styles.body}>
<View style={accountStyles.email_container}>
<Text style={accountStyles.email_text}>{this.state.user.email}</Text>
</View>
<TouchableHighlight onPress={this.logout.bind(this)} style={styles.primaryButton}>
<Text style={styles.primaryButtonText}>Logout</Text>
</TouchableHighlight>
<TouchableHighlight onPress={this.logout.bind(this)} style={styles.primaryButton}>
<Text style={styles.primaryButtonText}>Logout</Text>
</TouchableHighlight>
</View>
;
return (
<View style={styles.container}>
<View style={styles.body}>
{content}
</View>
</View>
);
}
logout() {
// logout, once that is complete, return the user to the login screen.
this.props.firebaseApp.auth().signOut().then(() => {
this.props.navigator.push({
component: Login
});
});
}
}
AppRegistry.registerComponent('Account', () => Account);