在Ionic中使用ngx-translate传递翻译值

npm install @ngx-translate/core @ngx-translate/http-loader --save

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { HttpClientModule, HttpClient } from '@angular/common/http';
import { TranslateModule, TranslateLoader } from '@ngx-translate/core';
import { TranslateHttpLoader } from '@ngx-translate/http-loader';

import { AppComponent } from './app.component';

// 创建一个HttpLoaderFactory函数，用于加载翻译文件
export function HttpLoaderFactory(http: HttpClient) {
  return new TranslateHttpLoader(http);
}

@NgModule({
  declarations: [AppComponent],
  imports: [
    BrowserModule,
    HttpClientModule,
    TranslateModule.forRoot({
      loader: {
        provide: TranslateLoader,
        useFactory: HttpLoaderFactory,
        deps: [HttpClient]
      }
    })
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}

{
  "hello": "Hello",
  "welcome": "Welcome to my app"
}

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

@Component({
  selector: 'app',
  template: `
    <h1>{{ 'hello' | translate }}</h1>
    <p>{{ 'welcome' | translate }}</p>
  `
})
export class AppComponent {
  constructor(private translate: TranslateService) {
    // 设置默认语言
    translate.setDefaultLang('en');
    // 添加支持的语言
    translate.addLangs(['en', 'zh']);
    // 根据浏览器语言自动切换语言
    translate.use(translate.getBrowserLang());
  }
}