mapContext.fromScreenLocation({
  x:0,
  y:0,
  success: (res)=>{
                this.setDate({
                markers: [{
                    latitude: res.latitude,
                    longitude: res.longitude,
                    id: 2,
                    iconPath: '/static/img/map-wd.png',
                    width: 24,
                    height: 24
                }]
            })
  }
}}