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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| import { start, stop, addLocationListener, Location } from "."; | ||
| import { EmitterSubscription } from "react-native"; | ||
|
|
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| /** | ||
| * 坐标信息 | ||
| * | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/Coordinates | ||
| */ | ||
| export interface Coordinates { | ||
| latitude: number; | ||
| longitude: number; | ||
| altitude: number; | ||
| accuracy: number; | ||
| altitudeAccuracy: number; | ||
| heading: number; | ||
| speed: number; | ||
| } | ||
|
|
||
| /** | ||
| * 定位信息 | ||
| * | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/Position | ||
| */ | ||
| export interface Position { | ||
| coords: Coordinates; | ||
| timestamp: number; | ||
| location: Location; | ||
| } | ||
|
|
||
| /** | ||
| * 定位错误信息 | ||
| * | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/PositionError | ||
| */ | ||
| export interface PositionError { | ||
| code: number; | ||
| message: string; | ||
| PERMISSION_DENIED: 1; | ||
| POSITION_UNAVAILABLE: 2; | ||
| TIMEOUT: 3; | ||
| } | ||
|
|
||
| /** | ||
| * 定位选项 | ||
| * | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/PositionOptions | ||
| */ | ||
| export interface PositionOptions { | ||
| timeout?: number; | ||
| maximumAge?: number; | ||
| enableHighAccuracy?: boolean; | ||
|
|
||
| /** | ||
| * @see [[setDistanceFilter]] | ||
| */ | ||
| distanceFilter?: number; | ||
| } | ||
|
|
||
| /** | ||
| * 获取当前位置信息 | ||
| * | ||
| * 注意：使用该方法会停止持续定位 | ||
| * | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/Geolocation/getCurrentPosition | ||
| */ | ||
| export function getCurrentPosition( | ||
| success: (position: Position) => void, | ||
| error?: (error: PositionError) => void, | ||
| options?: PositionOptions | ||
| ) { | ||
| const listener = addLocationListener(location => { | ||
| success(toPosition(location)); | ||
| stop(); | ||
| listener.remove(); | ||
| }); | ||
| start(); | ||
| } | ||
|
|
||
| let count = 0; | ||
| const watchMap: { [watchId: number]: EmitterSubscription } = {}; | ||
|
|
||
| /** | ||
| * 注册监听器进行持续定位 | ||
| * | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/Geolocation/watchPosition | ||
| */ | ||
| export function watchPosition( | ||
| success: (position: Position) => void, | ||
| error?: (error: PositionError) => void, | ||
| options?: PositionOptions | ||
| ) { | ||
| watchMap[++count] = addLocationListener(location => { | ||
| success(toPosition(location)); | ||
| }); | ||
| start(); | ||
| return count; | ||
| } | ||
|
|
||
| /** | ||
| * 移除位置监听 | ||
| * | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/Geolocation/clearWatch | ||
| */ | ||
| export function clearWatch(id: number) { | ||
| const listener = watchMap[id]; | ||
| if (listener) { | ||
| listener.remove(); | ||
| } | ||
| } | ||
|
|
||
| function toPosition(location: Location) { | ||
| return { | ||
| location, | ||
| coords: { | ||
| latitude: location.latitude, | ||
| longitude: location.longitude, | ||
| altitude: location.altitude, | ||
| accuracy: location.accuracy, | ||
| altitudeAccuracy: null, // 高德定位接口没有找到对应的数据 | ||
| heading: location.heading, | ||
| speed: location.speed | ||
| }, | ||
| timestamp: location.timestamp | ||
| }; | ||
| } | ||
|
|
||
| /** | ||
| * @see https://developer.mozilla.org/zh-CN/docs/Web/API/Geolocation | ||
| */ | ||
| export default class Geolocation { | ||
| static getCurrentPosition = getCurrentPosition; | ||
| static watchPosition = watchPosition; | ||
| static clearWatch = clearWatch; | ||
| } |
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