【发布时间】:2016-04-06 06:46:02
【问题描述】:
我正在尝试将 Google Maps 插件用于 Nativescript (https://github.com/dapriett/nativescript-google-maps-sdk) 与 Angular 2 和 {N}-Angular 路由器。我让它只在 Nativescript 中工作,但是一旦我添加了 Angular 2 和路由器,我就无法让地图显示在 UI 中。
由于 <Page> 标记没有进入 Angular2 {N} 组件模板,我不能使用 <Page> 上的 xmlns:maps="nativescript-google-maps-sdk" 命名空间来实例化 <maps:mapView>
{N} 组件基础页面提供了一些指导,但它不能以我尝试的方式工作:https://docs.nativescript.org/ui/ui-with-xml#user-interface-components
有什么正确的方法吗?
app.component.ts
import {Component} from "angular2/core";
import {RouteConfig} from "angular2/router";
import {NS_ROUTER_DIRECTIVES, NS_ROUTER_PROVIDERS} from "nativescript-angular/router";
import {HomeComponent} from "./pages/home/home.component";
@Component({
selector: "app-main",
directives: [NS_ROUTER_DIRECTIVES],
providers: [NS_ROUTER_PROVIDERS],
template: "<page-router-outlet ></page-router-outlet>"
})
@RouteConfig([
{ path: "/home", component: HomeComponent, as: "Home", useAsDefault: true },
])
export class AppComponent {
}
home.html
<stack-layout orientation="vertical">
<label [text]="message"></label>
<mapView [latitude]="latitude" [longitude]="longitude"
[zoom]="zoom" [bearing]="bearing"
[tilt]="tilt" (mapReady)="OnMapReady"
(markerSelect)="onMarkerSelect"
(cameraChanged)="onCameraChanged">
</mapView>
</stack-layout>
home.component.ts
import {Component} from "angular2/core";
var geolocation = require("nativescript-geolocation");
var mapsModule = require("nativescript-google-maps-sdk");
exports.mapView = mapsModule.MapView; //Doesn't work
exports.mapView = new mapsModule.MapView(); //Doesn't work
exports.mapView = mapsModule; //Doesn't work
@Component({
selector: "home",
templateUrl: "pages/home/home.html",
})
export class HomeComponent {
public message:string = "Message set.";
public latitude:number = 30.0;
public longitude:number = -100.0;
public zoom:number = 10;
public bearing:number = 0;
public tilt:number = 0;
constructor() {
this.message = "Home constructed.";
}
OnMapReady(args) { }
onMarkerSelect(args) { }
onCameraChanged(args) { }
}
【问题讨论】:
-
事件 (cameraChanged) 和 (markerSelect) 在上述代码中是否有效?因为他们似乎在这里不起作用..
-
不,它们在 Angular 2 设置中似乎不像在普通的 Nativescript 示例中那样工作。我发现您可以在组件中的 MapView 对象本身上以编程方式设置它们以使它们工作。我已经开始基于此构建示例项目,但仍有一些问题,但您可以使用代码示例:Nativescript Maps App
标签: typescript angular angular2-routing nativescript