app.js
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import React, { Component } from 'react';
import { Alert, StyleSheet, Text, TouchableOpacity, View } from 'react-native';
import Orientation from 'react-native-orientation';
export default class Demo extends Component {
componentWillMount() {
const init = Orientation.getInitialOrientation();
this.setState({
init,
orientation: init,
specificOrientation: init,
});
}
componentDidMount() {
Orientation.addOrientationListener(this._updateOrientation);
Orientation.addSpecificOrientationListener(this._updateSpecificOrientation);
}
componentWillUnmount() {
Orientation.removeOrientationListener(this._updateOrientation);
Orientation.removeSpecificOrientationListener(this._updateSpecificOrientation);
}
_getOrientation() {
Orientation.getOrientation((err, orientation) => {
Alert.alert(`Orientation is ${orientation}`);
});
}
_getSpecificOrientation() {
Orientation.getSpecificOrientation((err, orientation) => {
Alert.alert(`Specific orientation is ${orientation}`);
});
}
_updateOrientation = (orientation) => this.setState({ orientation });
_updateSpecificOrientation = (specificOrientation) => this.setState({ specificOrientation });
render() {
const { init, orientation, specificOrientation } = this.state;
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native Orientation Demo!
</Text>
<Text style={styles.instructions}>
{`Initial Orientation: ${init}`}
</Text>
<Text style={styles.instructions}>
{`Current Orientation: ${orientation}`}
</Text>
<Text style={styles.instructions}>
{`Specific Orientation: ${specificOrientation}`}
</Text>
<TouchableOpacity
onPress={Orientation.unlockAllOrientations}
style={styles.button}
>
<Text style={styles.instructions}>
Unlock All Orientations
</Text>
</TouchableOpacity>
<TouchableOpacity
onPress={Orientation.lockToPortrait}
style={styles.button}
>
<Text style={styles.instructions}>
Lock To Portrait
</Text>
</TouchableOpacity>
<View style={styles.buttonContainer}>
<TouchableOpacity
onPress={Orientation.lockToLandscapeLeft}
style={styles.button}
>
<Text style={styles.instructions}>
Lock To Left
</Text>
</TouchableOpacity>
<TouchableOpacity
onPress={Orientation.lockToLandscape}
style={styles.button}
>
<Text style={styles.instructions}>
Lock To Landscape
</Text>
</TouchableOpacity>
<TouchableOpacity
onPress={Orientation.lockToLandscapeRight}
style={styles.button}
>
<Text style={styles.instructions}>
Lock To Right
</Text>
</TouchableOpacity>
</View>
<View style={styles.buttonContainer}>
<TouchableOpacity
onPress={this._getOrientation}
style={styles.button}
>
<Text style={styles.instructions}>
Get Orientation
</Text>
</TouchableOpacity>
<TouchableOpacity
onPress={this._getSpecificOrientation}
style={styles.button}
>
<Text style={styles.instructions}>
Get Specific Orientation
</Text>
</TouchableOpacity>
</View>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
buttonContainer: {
flex: 0,
flexDirection: 'row',
justifyContent: 'space-around'
},
button: {
padding: 5,
margin: 5,
borderWidth: 1,
borderColor: 'white',
borderRadius: 3,
backgroundColor: 'grey',
}
});