将Google Maps Nativescript插件与Angular 2连接起来



我正在尝试使用Nativescript的谷歌地图插件(https://github.com/dapriett/nativescript-google-maps-sdk)使用Angular 2和{N}-Angular路由器。我只在Nativescript中使用它,但一旦我添加了Angular 2和路由器,我就无法在UI中显示地图。

由于<Page>标签没有进入Angular2{N}组件模板,因此我不能使用<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,但它并没有以我尝试过的方式工作:https://docs.nativescript.org/ui/ui-with-xml#user-接口组件

你知道做这件事的正确方法吗?

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) { }
}

您需要向element-registry API注册mapView标签名称,例如:

https://github.com/NativeScript/nativescript-angular/blob/master/src/nativescript-angular/element-registry.ts#L70-L105

API还没有文档,但我们应该在未来几周内解决这个问题。

我发现在ns-angualr 2中使用这个插件时,我必须手动将applicationID添加到root/platforms/adroid下的build.gradle文件中:

android{
    defaultConfig{
        applicationId "org.nativescript.my_app_name"

这是在我使用tns插件添加nativescript-google-sdk之后。

否则,该应用程序构建成功,但在部署时不会安装在设备或模拟器上,并检查logcat,我觉得这很奇怪,因为nativeescapet永远不会让你编辑build.gradle文件。现在使用其他答案的代码效果很好

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