如何在组件内部使用ngx-translate [英] How to use ngx-translate inside component

问题描述

我在网站内部使用ngx-translate，唯一的问题是我知道如何在html模板中使用它，效果很好，但是如何在组件内部调用 JSON 的键?

I am using ngx-translate inside my website, only problem is that i know how to use it inside html template it is working great, but how can i call key of JSON inside component?

这就是我需要的

app.html

 <div>{{"home" | translate }}</div>

这工作正常，但是在组件内部我有类似的东西

this is working ok, but inside component i have something like this

 this.Items = [
      { title: 'Home', component: BookAServicePage, icon: 'settings' }
    ];

我如何替换此HO​​ME以从 json 文件读取?

How can i replace this HOME to be read form a json file?

推荐答案

我能够找到解决方案.需要注意的一件事是，我必须利用DoCheck生命周期事件，以便组件级标签可以在不刷新的情况下进行转换.

I was able to figure out a solution. One thing to note is I had to utilize the DoCheck lifecycle event so that component level labels would translate without a refresh.

这是我的方法.

import { Component, DoCheck } from '@angular/core';
import { TranslateService } from '@ngx-translate/core';

@Component({
    selector: 'app-some',
    templateUrl: './some.component.html',
    styleUrls: ['./some.component.css']
})
export class SomeComponent implements DoCheck {

  headers = [];

  constructor(public translate: TranslateService){
  }

  ngDoCheck() {
    this.translate.get(['HEADER.PRIORITY', 'HEADER.STATE', 'HEADER.DATE_CREATED'])
    .subscribe(translations => {
        this.setHeaders(translations);
      });
  }

  setHeaders(translations) {
    this.headers = [
        {
            title: translations['HEADER.PRIORITY'],
            active: true
        },{
            title: translations['HEADER.STATE'],
            active: false
        },{
            title: translations['HEADER.DATE_CREATED'],
            active: false
        }];
  }
}

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