如何在angular2中添加annyang库? [英] How to add annyang library in angular2?

问题描述

我需要在angular2中添加 annyang 库.任何人都可以建议我如何使用system.js和typescript进行添加吗?我们有一个角度为1的服务.

I need to add annyang library in angular2. Can anyone please suggest me how to add using system.js and typescript? We have a angular 1 service.

我创建了一个annyang服务，代码为

I created a annyang service the code is

import {Injectable} from '@angular/core'
declare let annyang:any

@Injectable()
export class AnnyangService {
  start() {
    annyang.addCommands(this.commands);
    annyang.start({continuous: false });
  }

  commands = {};
}

组件代码

import { Component,EventEmitter } from '@angular/core'
import {EventsListComponent} from './events/events-list.components'
import {NavBarComponent} from './nav/navbar.component'
import {AnnyangService} from './common/annyang.service'
declare var annyang:any

@Component({
    selector: 'events-app',
    template: `
    <h3>{{iv}}</h3>    
    <button class="btn btn-primary" (click) = "clickEvent()">click</button>

})
export class EventsAppComponent{
    iv:any

    nameArray:Array<string> = ["a","p","n"]
    constructor(private annyang:AnnyangService){

    }
    ngOnInit(){            
            this.iv="asdf"
            console.log(this.iv)
            this.annyang.commands = {
                '*val': (val)=>{
                    console.log("command start")
                    this.updateVar(val)
                }
            }
            this.annyang.start();
    }
    clickEvent = function(){
        let abc = this.nameArray[Math.floor(Math.random() * (this.nameArray.length)) + 0]
        this.updateVar(abc)
        console.log(abc)
    }
    updateVar = function(val){
        console.log(this.iv)
        this.iv = val
        console.log(this.iv)
    }        
}

单击按钮，我可以更改"iv"，但使用annyang时虽然使用相同的updateVar却无法获取更新的值，并且它也反映在控制台中.我需要任何事件方法来代替ngOnInit吗?还是我致电服务的方式不正确?

on click of button I am able to change "iv" but using annyang not getting the updated value though using the same updateVar and it is reflecting in console also. Do I need any event method instead of ngOnInit? or the way I am calling the service is not proper?

推荐答案

这是一个AMD模块，因此应该很简单. (步骤4和5是可选步骤，但建议使用)

It is an AMD module so this should be straightforward. (Steps 4 and 5 are optional but recommended)

1. 如果您使用的是jspm，请运行

1. If you are using jspm, run

jspm install npm:annyang

并跳至步骤 3

否则，如果您使用的是npm，请运行

Otherwise, if you are using npm, run

npm install annyang --save

将以下内容添加到 systemjs.config.js

SystemJS.config({
  map {
    // whatever is there now... 
    "annyang": "npm:annyang/dist/annyang.js"
  }
});

在 annyang-service.ts

import annyang from 'annyang';
import {Injectable} from '@angular/core';

@Injectable({providedIn: 'root'})
export default class AnnyangService {
  start() {
    annyang.addCommands(this.commands);
    annyang.debug(true);
    annyang.start();
  }

  commands = {};
}

由于annyang目前似乎没有任何可用的类型文件，因此我们可以通过创建一个名为 extra-types/annyang.d.ts的声明文件开始对它们进行存根处理. strong>

Since it doesn't look like annyang has any typings files available at this time, we can start to stub one out by creating a declaration file named extra-types/annyang.d.ts

export default annyang;

declare const annyang: {
  addCommands: <T extends {}>(commands: T) => void,
  debug: (yn?: true) => void,
  start: () => void
};

在 tsconfig.json

{
  "compilerOptions": {
    // whatever is there now... 
    "baseUrl": ".",
    "paths": {
      "annyang": [
        "extra-types/annyang"
      ]
    }
  }
}

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