无法读取未定义的“纬度”属性

Question

我需要帮助，这是watchPosition()的问题，还是我做错了什么？

这是代码：

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

 private lat: any;
 private lng: any;
 constructor( private geolocation: Geolocation ) {

 let watch = this.geolocation.watchPosition();
watch.subscribe((data) => {

 // data can be a set of coordinates, or an error (if an error occurred).
 this.lat= data.coords.latitude;
 this.lng= data.coords.longitude;
},(error)=>{console.log(error);});

  }

Answer 1

如果要获取当前的纬度和经度，请使用getCurrentPosition方法

this.geolocation.getCurrentPosition().then((position) => {

      this.latitude = position.coords.latitude;
      this.longitude = position.coords.longitude;
     });