1/* 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import geolocation from '@ohos.geoLocationManager'; 17import Log from '../../../../../../../../common/src/main/ets/default/Log'; 18import createOrGet from '../../../../../../../../common/src/main/ets/default/SingleInstanceHelper'; 19 20const TAG = 'LocationModel'; 21 22export interface LocationStatrListener { 23 updateServiceState(status: boolean): void; 24} 25 26export class LocationService { 27 mIsStart = false; 28 mListener: LocationStatrListener; 29 30 startService(): void { 31 if (this.mIsStart) { 32 return; 33 } 34 Log.showInfo(TAG, 'startService'); 35 this.mIsStart = true; 36 this.getServiceState(); 37 try { 38 geolocation.on('locationEnabledChange', (state: boolean) => { 39 Log.showInfo(TAG, `startService locationChange, state: ${JSON.stringify(state)}`); 40 this.getServiceState(); 41 }); 42 } catch { 43 Log.showError(TAG, 'geolocation.on try-catch error'); 44 } 45 } 46 47 stopService(): void { 48 if (!this.mIsStart) { 49 return; 50 }; 51 Log.showInfo(TAG, 'stopService'); 52 this.mIsStart = false; 53 try { 54 geolocation.off('locationEnabledChange', (state: boolean) => { 55 Log.showInfo(TAG, `stopService locationChange, state: ${JSON.stringify(state)}`) 56 }); 57 } catch { 58 Log.showError(TAG, 'geolocation.off try-catch error'); 59 } 60 } 61 62 registerListener(listener: LocationStatrListener): void { 63 Log.showInfo(TAG, `registerListener, listener: ${listener}`); 64 this.mListener = listener; 65 } 66 67 getServiceState(): void { 68 Log.showDebug(TAG, 'getServiceState'); 69 try { 70 let data = geolocation.isLocationEnabled() 71 Log.showInfo(TAG, `getServiceState isLocationEnabled, data: ${JSON.stringify(data)}`); 72 this.mListener?.updateServiceState(data); 73 } catch(err) { 74 Log.showDebug(TAG, `getServiceState Error：${JSON.stringify(err || {})}`) 75 } 76 } 77 78 enableLocation(): void { 79 Log.showInfo(TAG, 'enableLocation'); 80 try { 81 geolocation.enableLocation() 82 .then((res) => Log.showInfo(TAG, `enableLocation, result: ${JSON.stringify(res)}`)) 83 .then(() => { 84 }).catch((err) => { 85 }); 86 } catch { 87 Log.showError(TAG, 'geolocation.enableLocation try-catch error'); 88 } 89 } 90 91 disableLocation(): void { 92 Log.showInfo(TAG, 'disableLocation'); 93 try { 94 geolocation.disableLocation(); 95 } catch { 96 Log.showError(TAG, 'geolocation.disableLocation try-catch error'); 97 } 98 } 99} 100 101let sLocationService = createOrGet(LocationService, TAG); 102 103export default sLocationService;