Angular 4+ 使用 Google Analytics [英] Angular 4+ using Google Analytics
问题描述
我正在尝试使用 angular 4 的 Google Analytics，但我在 ts 中找不到任何 @type 到 ga.js.
I'm trying to use the Google Analytics with angular 4, but i can't find any @type to ga.js in ts.
为了快速解决，我在每个组件中都使用了它:
For a quick solution I used this in every component:
declare let ga: any;
按照我的解决方法:
创建一个函数来动态加载 GA，插入具有当前 trackingId 和用户的 GA 脚本.
Create a function to load the GA dynamically that inserts the GA script with current trackingId and user.
loadGA(userId) {
if (!environment.GAtrackingId) return;
let scriptId = 'google-analytics';
if (document.getElementById(scriptId)) {
return;
}
var s = document.createElement('script') as any;
s.type = "text/javascript";
s.id = scriptId;
s.innerText = "(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', { trackingId: '" + **environment.GAtrackingId** + "', cookieDomain: 'auto', userId: '" + **userId** + "'});ga('send', 'pageview', '/');";
document.getElementsByTagName("head")[0].appendChild(s);
}
创建服务以实现您需要的方法.
Create the service to implement the methods that you will need.
import { Injectable } from '@angular/core';
import { environment } from '../../../environments/environment';
declare let ga: any;
@Injectable()
export class GAService {
constructor() {
}
/**
* Checks if the GA script was loaded.
*/
private useGA() : boolean {
return environment.GAtrackingId && typeof ga !== undefined;
}
/**
* Sends the page view to GA.
* @param {string} page The path portion of a URL. This value should start with a slash (/) character.
*/
sendPageView(
page: string
) {
if (!this.useGA()) return;
if (!page.startsWith('/')) page = `/${page}`;
ga('send', 'pageview', page);
}
/**
* Sends the event to GA.
* @param {string} eventCategory Typically the object that was interacted with (e.g. 'Video')
* @param {string} eventAction The type of interaction (e.g. 'play')
*/
sendEvent(
eventCategory: string,
eventAction: string
) {
if (!this.useGA()) return;
ga('send', 'event', eventCategory, eventAction);
}
}
然后我终于使用了组件中注入的服务.
Then I finally use the service injected in component.
constructor(private ga: GAService) {}
ngOnInit() { this.ga.sendPageView('/join'); }
推荐答案
首先，您需要在 devDependencies
npm install --save-dev @types/google.analytics
然后在基础 index.html 中添加您的跟踪代码，并删除最后一行，如下所示:
Then add your tracking code in the base index.html, and remove the last line as shown bellow:
<body>
<app-root>Loading...</app-root>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-XXXXXX-ID', 'auto'); // <- add the UA-ID
// <- remove the last line
</script>
</body>
下一步是更新您的主页组件构造函数以进行事件跟踪.
The next step consists to update your home component constructor for event tracking.
constructor(public router: Router) {
this.router.events.subscribe(event => {
if (event instanceof NavigationEnd) {
ga('set', 'page', event.urlAfterRedirects);
ga('send', 'pageview');
}
});
}
如果您想跟踪某个特定事件，您还可以创建一个服务并将其注入到您想要实现事件跟踪的任何组件中.
If you want to track some specific event, you can also create a service and inject it into any component that you want to implement event tracking.
// ./src/app/services/google-analytics-events-service.ts
import {Injectable} from "@angular/core";
@Injectable()
export class GoogleAnalyticsEventsService {
public emitEvent(eventCategory: string,
eventAction: string,
eventLabel: string = null,
eventValue: number = null) {
ga('send', 'event', { eventCategory, eventLabel, eventAction, eventValue });
}
}
例如，如果您想跟踪主页组件上的点击，您需要做的就是注入 GoogleAnalyticsEventsService 并调用 emitEvent() 方法.
So if you want track a click on your home component for example, all you need to do is to inject the GoogleAnalyticsEventsService and call the emitEvent() method.
更新后的home组件源代码:
The updated home component source code:
constructor(public router: Router, public googleAnalyticsEventsService: GoogleAnalyticsEventsService) {
this.router.events.subscribe(event => {
if (event instanceof NavigationEnd) {
ga('set', 'page', event.urlAfterRedirects);
ga('send', 'pageview');
}
});
}
submitEvent() { // event fired from home.component.html element (button, link, ... )
this.googleAnalyticsEventsService.emitEvent("testCategory", "testAction", "testLabel", 10);
}
这篇关于Angular 4+ 使用 Google Analytics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！
