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Some improvements to location module API.
This commit is contained in:
Nedyalko Nikolov
217
location/location.android.ts
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217
location/location.android.ts
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@@ -0,0 +1,217 @@
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import enums = require("ui/enums");
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import appModule = require("application");
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import locationModule = require("location");
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import common = require("location/location-common");
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import merger = require("utils/module-merge");
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declare var exports;
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merger.merge(common, exports);
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export class LocationManager implements locationModule.LocationManager {
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get android(): locationModule.AndroidLocationManager {
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return this.androidLocationManager;
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}
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get ios(): locationModule.iOSLocationManager {
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return undefined;
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}
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public isStarted: boolean;
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// in meters
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public desiredAccuracy: number;
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// The minimum distance (measured in meters) a device must move horizontally before an update event is generated.
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public updateDistance: number;
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private androidLocationManager: locationModule.AndroidLocationManager;
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private _locationListener: any;
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get locationListener(): any {
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if (!this._locationListener) {
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this._locationListener = <any>new android.location.LocationListener({
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onLocationChanged: function (location1: android.location.Location) {
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if (this._onLocation) {
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var location = LocationManager.locationFromAndroidLocation(location1);
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if (this.maximumAge) {
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if (location.timestamp.valueOf() + this.maximumAge > new Date().valueOf()) {
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this._onLocation(location);
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}
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}
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else {
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this._onLocation(location);
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}
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}
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},
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onProviderDisabled: function (provider: string) {
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//
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},
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onProviderEnabled: function (provider: string) {
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//
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},
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onStatusChanged: function (arg1: string, arg2: number, arg3: android.os.Bundle): void {
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//
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}
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});
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}
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return this._locationListener;
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}
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private static locationFromAndroidLocation(androidLocation: android.location.Location): locationModule.Location {
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var location = new locationModule.Location();
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location.latitude = androidLocation.getLatitude();
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location.longitude = androidLocation.getLongitude();
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location.altitude = androidLocation.getAltitude();
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location.horizontalAccuracy = androidLocation.getAccuracy();
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location.verticalAccuracy = androidLocation.getAccuracy();
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location.speed = androidLocation.getSpeed();
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location.direction = androidLocation.getBearing();
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location.timestamp = new Date(androidLocation.getTime());
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location.android = androidLocation;
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return location;
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}
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private static androidLocationFromLocation(location: locationModule.Location): android.location.Location {
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var androidLocation = new android.location.Location('custom');
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androidLocation.setLatitude(location.latitude);
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androidLocation.setLongitude(location.longitude);
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if (location.altitude) {
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androidLocation.setAltitude(location.altitude);
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}
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if (location.speed) {
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androidLocation.setSpeed(float(location.speed));
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}
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if (location.direction) {
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androidLocation.setBearing(float(location.direction));
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}
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if (location.timestamp) {
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try {
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androidLocation.setTime(long(location.timestamp.getTime()));
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}
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catch (e) {
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console.error('invalid location timestamp');
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}
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}
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return androidLocation;
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}
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public static isEnabled(): boolean {
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var criteria = new android.location.Criteria();
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criteria.setAccuracy(android.location.Criteria.ACCURACY_COARSE);
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var lm = appModule.android.context.getSystemService(android.content.Context.LOCATION_SERVICE);
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// due to bug in android API getProviders() with criteria parameter overload should be called (so most loose acuracy is used).
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var enabledProviders = lm.getProviders(criteria, true);
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return (enabledProviders.size() > 0) ? true : false;
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}
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public static distance(loc1: locationModule.Location, loc2: locationModule.Location): number {
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if (!loc1.android) {
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loc1.android = LocationManager.androidLocationFromLocation(loc1);
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}
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if (!loc2.android) {
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loc2.android = LocationManager.androidLocationFromLocation(loc2);
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}
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return loc1.android.distanceTo(loc2.android);
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}
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constructor() {
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//super();
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this.desiredAccuracy = enums.Accuracy.any;
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this.updateDistance = 0;
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//this.androidLocationManager = appModule.android.context.getSystemService(android.content.Context.LOCATION_SERVICE);
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var alm = appModule.android.context.getSystemService(android.content.Context.LOCATION_SERVICE);
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this.androidLocationManager = new AndroidLocationManager(alm);
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this.androidLocationManager.minimumUpdateTime = 200;
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}
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public startLocationMonitoring(onLocation: (location: locationModule.Location) => any, onError?: (error: Error) => any, options?: locationModule.Options) {
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var criteria = new android.location.Criteria();
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if (options) {
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if (options.desiredAccuracy) {
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this.desiredAccuracy = options.desiredAccuracy;
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}
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if (options.updateDistance) {
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this.updateDistance = options.updateDistance;
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}
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if (options.minimumUpdateTime) {
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this.androidLocationManager.minimumUpdateTime = options.minimumUpdateTime;
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}
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}
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criteria.setAccuracy((this.desiredAccuracy === enums.Accuracy.high) ? android.location.Criteria.ACCURACY_FINE : android.location.Criteria.ACCURACY_COARSE);
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this.locationListener._onLocation = onLocation;
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this.locationListener._onError = onError;
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this.locationListener.maximumAge = (options && ("number" === typeof options.maximumAge)) ? options.maximumAge : undefined;
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try {
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this.androidLocationManager.manager.requestLocationUpdates(this.androidLocationManager.minimumUpdateTime, this.updateDistance, criteria, this.locationListener, null);
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this.isStarted = true;
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}
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catch (e) {
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if (onError) {
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onError(e);
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}
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}
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}
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public stopLocationMonitoring() {
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this.androidLocationManager.manager.removeUpdates(this.locationListener);
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this.isStarted = false;
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}
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get lastKnownLocation(): locationModule.Location {
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var criteria = new android.location.Criteria();
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criteria.setAccuracy((this.desiredAccuracy === enums.Accuracy.high) ? android.location.Criteria.ACCURACY_FINE : android.location.Criteria.ACCURACY_COARSE);
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try {
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var providers = this.androidLocationManager.manager.getProviders(criteria, false);
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var it = providers.iterator();
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var location: android.location.Location;
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var tempLocation: android.location.Location;
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while (it.hasNext()) {
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var element = it.next();
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//console.log('found provider: ' + element);
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tempLocation = this.androidLocationManager.manager.getLastKnownLocation(element);
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if (!location) {
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location = tempLocation;
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}
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else {
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if (tempLocation.getTime() < location.getTime()) {
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location = tempLocation;
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}
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}
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}
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if (location) {
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return LocationManager.locationFromAndroidLocation(location);
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}
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}
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catch (e) {
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console.error(e.message);
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}
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return null;
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}
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}
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export class AndroidLocationManager implements locationModule.AndroidLocationManager {
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private _manager: android.location.LocationManager;
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private _minimumUpdateTime: number;
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public set minimumUpdateTime(value: number) {
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this._minimumUpdateTime = value;
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}
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public get minimumUpdateTime(): number {
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return this._minimumUpdateTime;
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}
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public get manager(): android.location.LocationManager {
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return this._manager;
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}
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constructor(manager: android.location.LocationManager) {
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this._manager = manager;
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}
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}
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