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App.js
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App.js
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import React from "react"
import { StyleSheet, Text, View, Image, Button } from "react-native"
import Expo from "expo"
export default class App extends React.Component {
constructor(props) {
super(props)
this.state = {
signedIn: false,
name: "",
photoUrl: ""
}
}
signIn = async () => {
try {
const result = await Expo.Google.logInAsync({
androidClientId:
"833456763323-ig9ndr0tbvb62jv4ddn6j8pos3a49m35.apps.googleusercontent.com",
//iosClientId: YOUR_CLIENT_ID_HERE, <-- if you use iOS
scopes: ["profile", "email"]
})
if (result.type === "success") {
this.setState({
signedIn: true,
name: result.user.name,
photoUrl: result.user.photoUrl
})
} else {
console.log("cancelled")
}
} catch (e) {
console.log("error", e)
}
}
render() {
return (
<View style={styles.container}>
{this.state.signedIn ? (
<LoggedInPage name={this.state.name} photoUrl={this.state.photoUrl} />
) : (
<LoginPage signIn={this.signIn} />
)}
</View>
)
}
}
const LoginPage = props => {
return (
<View>
<Text style={styles.header}>Sign In With Google</Text>
<Button title="Sign in with Google" onPress={() => props.signIn()} />
</View>
)
}
const LoggedInPage = props => {
return (
<View style={styles.container}>
<Text style={styles.header}>Welcome:{props.name}</Text>
<Image style={styles.image} source={{ uri: props.photoUrl }} />
</View>
)
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: "#fff",
alignItems: "center",
justifyContent: "center"
},
header: {
fontSize: 25
},
image: {
marginTop: 15,
width: 150,
height: 150,
borderColor: "rgba(0,0,0,0.2)",
borderWidth: 3,
borderRadius: 150
}
})