reactnativecomponents/AmapLocation/index.js

React Native Components

import { DeviceEventEmitter, NativeModules, Platform } from 'react-native';
const config = {
    webApiKey: '',
    iosApiKey: '',
    androidApiKey: ''
};
const convertUrl = 'http://restapi.amap.com/v3/assistant/coordinate/convert?coordsys=gps&key=';
const ANDROID_EVENT = 'amapWatchPosition';
let watchId = 0;
const watchFunc = {};
function gpsToAmap(position, success, error) {
    fetch(`${convertUrl}${config.webApiKey}&locations=${position.coords.longitude},${position.coords.latitude}`)
        .then(res => res.json())
        .then(res => {
        if (res.status === '1') {
            const tmp = res.locations.split(',');
            const result = {
                ...position
            };
            result.coords.longitude = tmp[0];
            result.coords.latitude = tmp[1];
            success && success(result);
        }
        else {
            error && error({
                code: res.infocode,
                message: res.info
            });
        }
    })
        .catch(err => error && error(err));
}
/**
 * @author 田尘殇Sean(sean.snow@live.com)
 * @date 2017/4/6
 */
export default class AmapLocation {
    static setApiKey({ webApiKey, androidApiKey }) {
        config.webApiKey = webApiKey;
        config.androidApiKey = androidApiKey;
        if (Platform.OS === 'android') {
            NativeModules.AmapLocation.setApiKey(androidApiKey);
        }
    }
    /**
     * 高德定位SDK获取当前的地理位置
     * @param success 成功回调函数
     * @param error 失败回调函数
     * @param options 参数
     */
    static getCurrentPosition(success, error, options) {
        if (Platform.OS === 'android') {
            const onPosition = (payload) => {
                if (payload.success) {
                    success && success(payload);
                }
                else {
                    error && error(payload);
                }
                DeviceEventEmitter.removeListener(ANDROID_EVENT, onPosition);
            };
            DeviceEventEmitter.addListener(ANDROID_EVENT, onPosition);
            NativeModules.AmapLocation.getCurrentPosition(options);
        }
        else {
            navigator.geolocation.getCurrentPosition(position => gpsToAmap(position, success, error), error, options);
        }
    }
    static watchPosition(success, error, options) {
        if (Platform.OS === 'android') {
            const onPosition = (payload) => {
                if (payload.success) {
                    success && success(payload);
                }
                else {
                    error && error(payload);
                }
            };
            DeviceEventEmitter.addListener(ANDROID_EVENT, onPosition);
            watchId += 1;
            watchFunc[watchId] = onPosition;
            NativeModules.AmapLocation.watchPosition(options, watchId);
            return watchId;
        }
        return navigator.geolocation.watchPosition(position => gpsToAmap(position, success, error), error, options);
    }
    static clearWatch(id) {
        if (Platform.OS === 'android') {
            const onPosition = watchFunc[id];
            if (onPosition) {
                NativeModules.AmapLocation.clearWatch(id);
                Reflect.deleteProperty(watchFunc, id);
            }
        }
        else {
            navigator.geolocation.clearWatch(id);
        }
    }
}