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How can I integrate Google Maps APIs inside an Angular 2 component

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囚心锁ツ
囚心锁ツ 2020-12-07 23:38

I have an Angular 2 component that is defined in the file comp.ts in this way like this:

import {Component} from \'angular2/core\';

@component({
    selecto
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3条回答
  • 再見小時候
    2020-12-07 23:51

    I have found a solution. First of all, the following line:

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

    must be inserted in the index.html file. The code which creates the map must be inserted in the comp.ts file. In particular, it must be inserted in a special method, namely "ngOnInit", which can be positioned after the constructor of the class. This is comp.ts:

    import { Component } from 'angular2/core';

declare const google: any;

@Component({
    selector: 'my-app',
    templateUrl:'appHtml/app.html',
    styleUrls: ['css/app.css']
})

export class AppMainComponent {
    constructor() {}
    ngOnInit() {
        let mapProp = {
            center: new google.maps.LatLng(51.508742, -0.120850),
            zoom: 5,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        let map = new google.maps.Map(document.getElementById("googleMap"), mapProp);
    }
}

    Finally, the div with id "googleMap", which is going to contain the google map, must be inserted in the comp.html file, which will look like this:

    <body>
    <div id="googleMap" style="width:500px;height:380px;"></div>
</body>
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  • 失恋的感觉
    2020-12-07 23:59

    Yeah, you could do so. But there would be an error in typescript compiler, so don't forget to implicitly declare google variable.

    declare var google: any;

    add this directive right after component import.

    import { Component, OnInit } from '@angular/core';
declare var google: any;

@Component({
  moduleId: module.id,
  selector: 'app-root',
  templateUrl: 'app.component.html',
  styleUrls: ['app.component.css']
})
export class AppComponent implements OnInit {
  ngOnInit() {
    var mapProp = {
            center: new google.maps.LatLng(51.508742, -0.120850),
            zoom: 5,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
      var map = new google.maps.Map(document.getElementById("gmap"), mapProp);
  }
}
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  • 囚心锁ツ
    2020-12-08 00:00

    Use angular2-google-maps: https://angular-maps.com/

    import { BrowserModule } from '@angular/platform-browser';
import { NgModule, ApplicationRef } from '@angular/core';

import { AgmCoreModule } from 'angular2-google-maps/core';

@Component({
  selector: 'app-root',
    styles: [`
        .sebm-google-map-container {
            height: 300px;
        }
    `],
  template: `
        <sebm-google-map [latitude]="lat" [longitude]="lng"></sebm-google-map>
    `
})
export class AppComponent {
  lat: number = 51.678418;
  lng: number = 7.809007;
}

@NgModule({
  imports: [
    BrowserModule,
    AgmCoreModule.forRoot({
      apiKey: 'YOUR_GOOGLE_MAPS_API_KEY'
    })
  ],
  declarations: [ AppComponent ],
  bootstrap: [ AppComponent ]
})
export class AppModule {}
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