uniapp如何实现网络定位、离线定位？

有时候我们会有在H5或者app里使用到离线定位的功能需求，很多小伙伴不知道如何处理，这里我将告诉大家如何处理

废话不多说 直接上代码

async getLatlng() {

        let getLatlngOnline = ()=>{

                return new Promise((resolve, reject)=>{

                        uni.getLocation({

                                type: \'gcj02\',

                                success: (res)=> {

                                        resolve({

                                                lat: res.latitude,

                                                lng: res.longitude

                                        })

                                },

                                fail: (error)=> {

                                        uni.showToast({

                                                title: \'当前位置获取失败,请检查