地理定位在设备 ionic3 中不起作用

Question

我正在使用 ionic 3 基于位置的工作。我无法在此处获取当前的经纬度位置。我提到了我的可用代码。它在浏览器级别工作正常，但在移动设备中不工作。

代码

$ ionic cordova plugin add cordova-plugin-geolocation --variable GEOLOCATION_USAGE_DESCRIPTION="To locate you"
$ npm install --save @ionic-native/geolocation

import { Geolocation } from '@ionic-native/geolocation';

constructor(private geolocation: Geolocation) {}

this.geolocation.getCurrentPosition().then((resp) => {
  console.log( resp.coords.latitude)
 console.log( resp.coords.longitude)
}).catch((error) => {
  console.log('Error getting location', error);
});

Answer 1

尝试在 ionViewDidLoad() 或 ngAfterViewInit() 方法中调用地理定位函数。

import { Geolocation } from '@ionic-native/geolocation';

constructor(private geolocation: Geolocation) {}

ngAfterViewInit(){
  this.geolocation.getCurrentPosition().then((resp) => {
    console.log( resp.coords.latitude)
    console.log( resp.coords.longitude)
  }).catch((error) => {
    console.log('Error getting location', error);
  });
}

希望这能解决您的问题！

Answer 2

试试这个：

import { Geolocation } from '@ionic-native/geolocation';
import { Platform } from 'ionic-angular';

//Set the properties in this class
long: any; //longitude
lati: any; //latitude

constructor(private platform: Platform, private geolocation: Geolocation) {
this.platform.ready().then(()=>{

//set options.. 
var options = {
           timeout: 20000 //sorry I use this much milliseconds
       }
//use the geolocation 
this.geolocation.getCurrentPosition(options).then(data=>{
  this.long = data.coords.longitude;
  this.lati = data.coords.latitude;
 }).catch((err)=>{
     console.log("Error", err);
   });
});
}

让它在构造函数中。不要忘记同意位置隐私许可，同时在您的 Android 设备上启用位置选项（虽然这是可能的）。

Answer 3

import { Geolocation } from '@ionic-native/geolocation';
import { Platform } from 'ionic-angular';

//Set the properties in this class
long: any; //longitude
lati: any; //latitude

constructor(private platform: Platform, private geolocation: Geolocation) {
this.platform.ready().then(()=>{

//set options.. 
var options = {
        enableHighAccuracy: true, timeout: 60000, maximumAge: 0
    };
//use the geolocation 
this.geolocation.getCurrentPosition(options).then(data=>{
  this.long = data.coords.longitude;
  this.lati = data.coords.latitude;
 }).catch((err)=>{
     console.log("Error", err);
   });

 let watch = this.geolocation.watchPosition(options);
          watch.subscribe((data) => {
            let lat_lng = data.coords.latitude+","+data.coords.longitude; 

});

});
}

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