Angular 9 Google Maps API Place Autocomplete

Question

I have a Angular 9 (just migrated from 8), I need to use the Google Places API (I have a API key) for a Address Autocomplete, I can show the map with the @angular/googlemaps library but I can't make the Autocomplete work...

I tried to use the https://developers.google.com/maps/documentation/javascript/examples/places-autocomplete code, but I can't make angular to use the javascript... or try to use the @agm/core and @angular-material-extensions/google-maps-autocomplete, also not working...

My best bet is to use it as native as possible, but I don't know how to use just javascript in Angular... there is a angular native component like the maps? o how can I implement the javascript way that Google uses in the demos?

Answer 1

Angular should be able to use the googlemaps apis directly without too much of an issue.

The below code is using @agm/core for the map, however the autocomplete is just using the basic google maps api. If you still have issues, it maybe worth trying some of the following:

• Explicitly setting the google maps version.
• Making sure the places library is included
• Making sure the css it set correctly, sometimes the autocomplete ends up being hidden if a z-index and position isn't set.

component.html

<div class="map-container">
  <agm-map [latitude]="lat" [longitude]="lng" [zoom]="zoom">
    <agm-marker [latitude]="lat" [longitude]="lng"></agm-marker>
  </agm-map>
</div>

<div id="pac-container">
  <input #search id="pac-input" type="text" placeholder="Enter a location">
</div>

component.ts

import { Component, OnInit, ElementRef, ViewChild, NgZone } from '@angular/core';
import { MapsAPILoader } from '@agm/core';

@Component({
  selector: 'app-map',
  templateUrl: './component.html',
  styleUrls: ['./component.css']
})
export class MapComponent implements OnInit {

  lat: string;
  lng: string;
  zoom = 1;
  private geoCoder;

  @ViewChild('search')
  public searchElementRef: ElementRef;

  constructor(
    private mapsAPILoader: MapsAPILoader,
    private ngZone: NgZone) { }

  ngOnInit() {
    //load Places Autocomplete
    this.mapsAPILoader.load().then(() => { 
      this.geoCoder = new google.maps.Geocoder;

      const autocomplete = new google.maps.places.Autocomplete(this.searchElementRef.nativeElement);
      autocomplete.addListener("place_changed", () => {
        this.ngZone.run(() => {
          //get the place result
          const place: google.maps.places.PlaceResult = autocomplete.getPlace();

          //verify result
          if (place.geometry === undefined || place.geometry === null) {
            return;
          }

          //set latitude, longitude and zoom
          this.lat = place.geometry.location.lat();
          this.lng = place.geometry.location.lng();
          this.zoom = 12;
        }); 
      });
    });
  }
}

component.css

.map-container {
  bottom: 0px;
  top: 0px;
  left: 0px;
  position: absolute;
  right: 0px;
}

agm-map {
  height: 100%;
  width: 100%;
}

#pac-container {
  padding-bottom: 12px;
  margin-right: 12px;
  z-index: 5000; /* not setting this can lead to angular hiding the autocomplete */
  position: absolute; /* not setting this can lead to angular hiding the autocomplete */
}

Your app module will need to import the @agm/core properly.

AgmCoreModule.forRoot({
  apiKey: 'yourapikey',
  libraries: ["places"],
  apiVersion: 'quarterly'
}),

Answer 2

You may use this library instead https://github.com/angular-material-extensions/google-maps-autocomplete.