calculateAndDisplayRoute() {
var points = [];
this.directionsService.route({
origin: this.start,
destination: this.end,
travelMode: ‘DRIVING‘,
provideRouteAlternatives: true

}, (response, status) => {
if (status === ‘OK‘) {
var step = 1;

for(var j=0;j<response.routes.length;j++){

  points=[]
  for (var i = 0; i < response.routes[j].overview_path.length; i++) {
    points.push(response.routes[j].overview_path[i].toJSON())
  }
  let position=points[20]
  this.drawRoutePolyLine(points,j,position)
  step=step+1
}
 

} else {
window.alert(‘Directions request failed due to ‘ + status);
}
});
} 幫我添加infowindow

如何添加infowindow距離和時間像谷歌地圖的折線連接兩個點?