如何将Google Maps API集成到Angular 2组件中 [英] How can I integrate Google Maps APIs inside an Angular 2 component
问题描述
import {}我有一个Angular 2组件在文件comp.ts中以这种方式定义：组件}来自'angular2 / core';
@component（{
选择器：'my-comp'，
templateUrl：'comp.html'
}）
导出class MyComp {
constructor（）{
}
}
因为我希望组件显示谷歌地图，所以我在文件comp.html中插入了以下代码：
< ！DOCTYPE html>
< html>
< head>
< script src =http://maps.googleapis.com/maps/api/js>< / script>
< script>
函数initialize（）{
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（googleMap），mapProp）;
}
google.maps.event.addDomListener（window，'load'，initialize）;
< / script>
< / head>
< body>
< div id =googleMapstyle =width：500px; height：380px;>< / div>
< / body>
< / html>
此代码已从此链接复制 http://www.w3schools.com/googleAPI/google_maps_basic.asp 。问题是组件不显示地图。我做错了什么？
是的，你可以这样做。但是在打字稿编译器中会出现错误，所以不要忘记隐式声明谷歌变量。
declare var google：any ;
在组件导入后添加此指令。
从'@ angular / core'导入{Component，OnInit};
declare var google：any;
@Component（{
moduleId：module.id，
selector：'app-root'，
templateUrl：'app.component.html'，
styleUrls：['app.component.css']
}）
export class AppComponent实现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）;
}
}
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({
selector:'my-comp',
templateUrl:'comp.html'
})
export class MyComp{
constructor(){
}
}
Because I want the component to show a google map, I have inserted in the file comp.html the following code:
<!DOCTYPE html>
<html>
<head>
<script src="http://maps.googleapis.com/maps/api/js"></script>
<script>
function initialize() {
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("googleMap"),mapProp);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="googleMap" style="width:500px;height:380px;"></div>
</body>
</html>
This code has been copied from this link http://www.w3schools.com/googleAPI/google_maps_basic.asp. The problem is that the component doesn't show the map. What have I done wrong?
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);
}
}
这篇关于如何将Google Maps API集成到Angular 2组件中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
