你需要在 info.plist 中添加 NSLocationWhenInUseUsageDescription键来定位，当你用 react-native init来创建一个项目时，默认情况下定位是能够使用的。
定位遵循 MDN 规范：
https://developer.mozilla.org/en-US/docs/Web/API/Geolocation
static getCurrentPosition(geo_success: Function, geo_error?: Function, geo_options?: Object)
static watchPosition(success: Function, error?: Function, options?: Object)
static clearWatch(watchID: number)
static stopObserving()
Edit on GitHub
/* eslint no-console: 0 */'use strict';var React = require('react-native');var {
StyleSheet,
Text,
View,
} = React;
exports.framework = 'React';
exports.title = 'Geolocation';
exports.description = 'Examples of using the Geolocation API.';
exports.examples = [
{
title: 'navigator.geolocation',
render: function(): ReactElement { return <GeolocationExample />;
},
}
];var GeolocationExample = React.createClass({
watchID: (null: ?number),
getInitialState: function() { return {
initialPosition: 'unknown',
lastPosition: 'unknown',
};
},
componentDidMount: function() {
navigator.geolocation.getCurrentPosition(
(initialPosition) => this.setState({initialPosition}),
(error) => console.error(error)
); this.watchID = navigator.geolocation.watchPosition((lastPosition) => { this.setState({lastPosition});
});
},
componentWillUnmount: function() {
navigator.geolocation.clearWatch(this.watchID);
},
render: function() { return ( <View>
<Text>
<Text style={styles.title}>Initial position: </Text>
{JSON.stringify(this.state.initialPosition)} </Text>
<Text>
<Text style={styles.title}>Current position: </Text>
{JSON.stringify(this.state.lastPosition)} </Text>
</View>
);
}
});var styles = StyleSheet.create({
title: {
fontWeight: '500',
},
});