GoogleMaps Routing Service Using Ion-Native

Question

I am using googleMaps with my ionic2 application. I am using ionic-native lib.I have so far implemented a lot of business and now I am trying to find a route between two points using the google directional service. But I can not find any pattern or where I could start. Any ideas or sample are fully appreciated.

Answer 1

Cordoba has not yet implemented the Directions-Service, therefore it is not available for convenient use in Ionic.

Here is an example of how to use it in another way:

'src/index.html', script body.

<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY"></script>

, , YOUR-API-KEY Google API.

'src/pages/home/home.html', "ion-content" .

<ion-content>
  <div id="floating-panel">
    <b>Start: </b>
    <select [(ngModel)]="start" id="start" (change)="calculateAndDisplayRoute()">
      <option value="chicago, il">Chicago</option>
      <option value="st louis, mo">St Louis</option>
      <option value="joplin, mo">Joplin, MO</option>
      <option value="oklahoma city, ok">Oklahoma City</option>
      <option value="amarillo, tx">Amarillo</option>
      <option value="gallup, nm">Gallup, NM</option>
      <option value="flagstaff, az">Flagstaff, AZ</option>
      <option value="winona, az">Winona</option>
      <option value="kingman, az">Kingman</option>
      <option value="barstow, ca">Barstow</option>
      <option value="san bernardino, ca">San Bernardino</option>
      <option value="los angeles, ca">Los Angeles</option>
    </select><br>
    <b>End: </b>
    <select [(ngModel)]="end" id="end" (change)="calculateAndDisplayRoute()">
      <option value="chicago, il">Chicago</option>
      <option value="st louis, mo">St Louis</option>
      <option value="joplin, mo">Joplin, MO</option>
      <option value="oklahoma city, ok">Oklahoma City</option>
      <option value="amarillo, tx">Amarillo</option>
      <option value="gallup, nm">Gallup, NM</option>
      <option value="flagstaff, az">Flagstaff, AZ</option>
      <option value="winona, az">Winona</option>
      <option value="kingman, az">Kingman</option>
      <option value="barstow, ca">Barstow</option>
      <option value="san bernardino, ca">San Bernardino</option>
      <option value="los angeles, ca">Los Angeles</option>
    </select>
    </div>
    <div #map id="map"></div>
</ion-content>

'src/pages/home/home.ts', .

import { Component, ViewChild, ElementRef } from '@angular/core';
import { IonicPage } from 'ionic-angular';
import { NavController } from 'ionic-angular';

declare var google;

@IonicPage()
@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {

  @ViewChild('map') mapElement: ElementRef;
  map: any;
  start = 'chicago, il';
  end = 'chicago, il';
  directionsService = new google.maps.DirectionsService;
  directionsDisplay = new google.maps.DirectionsRenderer;

  constructor(public navCtrl: NavController) {

  }

  ionViewDidLoad(){
    this.initMap();
  }

  initMap() {
    this.map = new google.maps.Map(this.mapElement.nativeElement, {
      zoom: 7,
      center: {lat: 41.85, lng: -87.65}
    });

    this.directionsDisplay.setMap(this.map);
  }

  calculateAndDisplayRoute() {
    this.directionsService.route({
      origin: this.start,
      destination: this.end,
      travelMode: 'DRIVING'
    }, (response, status) => {
      if (status === 'OK') {
        this.directionsDisplay.setDirections(response);
      } else {
        window.alert('Directions request failed due to ' + status);
      }
    });
  }

}