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App.js
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App.js
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import React from 'react';
import { Platform, StatusBar, StyleSheet, View } from 'react-native';
import { AppLoading, Asset, Font, Icon } from 'expo';
import AppNavigator from './navigation/AppNavigator';
import data from './screens/data';
import * as firebase from 'firebase';
export default class App extends React.Component {
constructor (props) {
super(props);
this.state = {
isLoadingComplete: false,
};
// Initialize Firebase
const firebaseConfig = {
apiKey: "AIzaSyDh9vBPL3_i-qiyoGQCF1dzMQg_6sdhXoM",
authDomain: "hellolens.firebaseapp.com",
databaseURL: "https://hellolens-5fbd4.firebaseio.com/",
projectId: "hellolens",
storageBucket: "hellolens-5fbd4.appspot.com",
messagingSenderId: "523608666117"
//expo guide doesnt have databaseURL, projectId, messagingSenderID
};
if (!firebase.apps.length){
firebase.initializeApp(firebaseConfig);
}
}
updateData = () => {
if (data.called == false){
data.called = true;
firebase.database().ref('conversations/conv2/msg').once('value').then(
function(snapshot){
console.log("snapshot val",snapshot.val())
data.lastConvo = snapshot.val();
})
firebase.database().ref('conversations/conv1/msg').once('value').then(
function(snapshot){
console.log("snapshot val",snapshot.val())
data.twoHours = snapshot.val();
})
firebase.database().ref('conversations/conv0/msg').once('value').then(
function(snapshot){
console.log("snapshot val",snapshot.val())
data.yesterday = snapshot.val();
})
}
};
render() {
this.updateData();
if (!this.state.isLoadingComplete && !this.props.skipLoadingScreen) {
return (
<AppLoading
startAsync={this._loadResourcesAsync}
onError={this._handleLoadingError}
onFinish={this._handleFinishLoading}
/>
);
} else {
return (
<View style={styles.container}>
{Platform.OS === 'ios' && <StatusBar barStyle="default" />}
<AppNavigator />
</View>
);
}
}
_loadResourcesAsync = async () => {
return Promise.all([
Asset.loadAsync([
require('./assets/images/robot-dev.png'),
require('./assets/images/robot-prod.png'),
]),
Font.loadAsync({
// This is the font that we are using for our tab bar
...Icon.Ionicons.font,
// We include SpaceMono because we use it in HomeScreen.js. Feel free
// to remove this if you are not using it in your app
'space-mono': require('./assets/fonts/SpaceMono-Regular.ttf'),
}),
]);
};
_handleLoadingError = error => {
// In this case, you might want to report the error to your error
// reporting service, for example Sentry
console.warn(error);
};
_handleFinishLoading = () => {
this.setState({ isLoadingComplete: true });
};
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#fff',
},
});