Как использовать Google Maps с Ionic 3

Я настоятельно рекомендую вам использовать оболочку Ionic Native для карт Google вместо того, чтобы идти соло.

1. Установите плагины Cordova и Ionic Native:

$ ionic cordova plugin add cordova-plugin-googlemaps --variable API_KEY_FOR_ANDROID="YOUR_ANDROID_API_KEY_IS_HERE" --variable API_KEY_FOR_IOS="YOUR_IOS_API_KEY_IS_HERE"
$ npm install --save @ionic-native/google-maps

2. После установки пакета плагинов добавьте его в свои приложения NgModule.

...

import { Camera } from '@ionic-native/camera';

...

@NgModule({
  ...

  providers: [
    ...
    GoogleMaps
    ...
  ]
  ...
})
export class AppModule { }

3. Использование

import {
 GoogleMaps,
 GoogleMap,
 GoogleMapsEvent,
 LatLng,
 CameraPosition,
 MarkerOptions,
 Marker
} from '@ionic-native/google-maps';

export class MapPage {
 constructor(private googleMaps: GoogleMaps) {}

// Load map only after view is initialized
ngAfterViewInit() {
 this.loadMap();
}

loadMap() {
 // make sure to create following structure in your view.html file
 // and add a height (for example 100%) to it, else the map won't be visible
 // <ion-content>
 //  <div #map id="map" style="height:100%;"></div>
 // </ion-content>

 // create a new map by passing HTMLElement
 let element: HTMLElement = document.getElementById('map');

 let map: GoogleMap = this.googleMaps.create(element);

 // listen to MAP_READY event
 // You must wait for this event to fire before adding something to the map or modifying it in anyway
 map.one(GoogleMapsEvent.MAP_READY).then(
   () => {
     console.log('Map is ready!');
     // Now you can add elements to the map like the marker
   }
 );

 // create LatLng object
 let ionic: LatLng = new LatLng(43.0741904,-89.3809802);

 // create CameraPosition
 let position: CameraPosition = {
   target: ionic,
   zoom: 18,
   tilt: 30
 };

 // move the map camera to position
 map.moveCamera(position);

 // create new marker
 let markerOptions: MarkerOptions = {
   position: ionic,
   title: 'Ionic'
 };

 const marker: Marker = map.addMarker(markerOptions)
   .then((marker: Marker) => {
      marker.showInfoWindow();
    });
 }

}