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angular 国际化 Angular 国际化-应用示例

2023-03-15 04:33 Angular13

angular 国际化 Angular 国际化-应用示例

angular 国际化

Angular 国际化是一种技术,它可以让你的应用程序能够在不同的语言和地区中运行。它可以帮助你的应用程序更好地服务于全球用户,并且可以帮助你更好地理解不同文化背景下的用户需求。

Angular 国际化是一个复杂的过程,它需要对代码、文本、图像和其他内容进行本地化处理,以便能够适应不同语言和地区的要求。Angular 提供了一些内置工具来帮助开发者实现国际化:

// 使用 Angular 的 i18n 工具来标记文本字符串:
@Component({
  selector: 'app-my-component',
  template: `

My component

` }) export class MyComponent { }
// 使用 Angular 的 locale 过滤器来格式化时间、数字和货币: 
@Component({  selector: 'app-my-component',   template: `{{ date | date:'longDate' }}` }) export class MyComponent {   date = new Date(); }  

此外,Angular 还提供了一个 ngx-translate 扩展库(也叫 i18n 库)来帮助开发者将文本字符串本地化。ngx-translate 是一个强大的工具,它可以将文本字符串分割成独立的部分并将其映射到特定语言/地区代码中。

此外,Angular 还提供了一些工具来帮助开发者测试国际化功能。例如,Angular CLI 命令行界面可以生成特定语言/地区代码的测试数据集。此外,Angular 还提供了一个单独的测试工具——i18n tester——来帮助开发者测试国际化功能是否正常工作。

总之,Angular 提供了很多内置工具和扩展库来帮助开发者实现国际化。使用这些工具和扩展库(如 ngx-translate 和 i18n tester )可以大大减少国际化过程中遇到的问题数量并极大地减少开发时间。

Angular 国际化-应用示例

浏览翻译后的范例应用

要浏览 Angular 国际化指南中使用的带法语翻译的范例应用,参见live example / 下载范例。

fr-CA 和 en-US 范例

以下选项卡显示示例应用程序和相关的翻译文件。

  • src/app/app.component.html
  • <h1 i18n="User welcome|An introduction header for this sample@@introductionHeader">
      Hello i18n!
    </h1>
    
    <ng-container i18n>I don"t output any element</ng-container>
    
    <br />
    
    <img [src]="logo" i18n-title title="Angular logo" alt="Angular logo"/>
    <br>
    <button type="button" (click)="inc(1)">+</button> <button type="button" (click)="inc(-1)">-</button>
    <span i18n>Updated {minutes, plural, =0 {just now} =1 {one minute ago} other {{{minutes}} minutes ago}}</span>
    ({{minutes}})
    <br><br>
    <button type="button" (click)="male()">&#9794;</button> <button type="button" (click)="female()">&#9792;</button> <button type="button" (click)="other()">&#9895;</button>
    <span i18n>The author is {gender, select, male {male} female {female} other {other}}</span>
    <br><br>
    <span i18n>Updated: {minutes, plural,
      =0 {just now}
      =1 {one minute ago}
      other {{{minutes}} minutes ago by {gender, select, male {male} female {female} other {other}}}}
    </span>
  • src/app/app.component.ts
    import { Component } from "@angular/core";
    
    @Component({
      selector: "app-root",
      templateUrl: "./app.component.html"
    })
    export class AppComponent {
      minutes = 0;
      gender = "female";
      fly = true;
      logo = "https://angular.io/assets/images/logos/angular/angular.png";
      inc(i: number) {
        this.minutes = Math.min(5, Math.max(0, this.minutes + i));
      }
      male() { this.gender = "male"; }
      female() { this.gender = "female"; }
      other() { this.gender = "other"; }
    }
  • src/app/app.module.ts
    import { NgModule } from "@angular/core";
    import { BrowserModule } from "@angular/platform-browser";
    
    import { AppComponent } from "./app.component";
    
    @NgModule({
      imports: [ BrowserModule ],
      declarations: [ AppComponent ],
      bootstrap: [ AppComponent ]
    })
    export class AppModule { }
  • src/main.ts
    import { enableProdMode } from "@angular/core";
    import { platformBrowserDynamic } from "@angular/platform-browser-dynamic";
    
    import { AppModule } from "./app/app.module";
    import { environment } from "./environments/environment";
    
    if (environment.production) {
      enableProdMode();
    }
    
    platformBrowserDynamic().bootstrapModule(AppModule);
  • src/locale/messages.fr.xlf
    <?xml version="1.0" encoding="UTF-8" ?>
    <xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2">
      <file source-language="en" datatype="plaintext" original="ng2.template">
        <body>
          <trans-unit id="introductionHeader" datatype="html">
            <source>Hello i18n!</source>
            <note priority="1" from="description">An introduction header for this sample</note>
            <note priority="1" from="meaning">User welcome</note>
          </trans-unit>
          <trans-unit id="introductionHeader" datatype="html">
            <source>Hello i18n!</source>
            <target>Bonjour i18n !</target>
            <note priority="1" from="description">An introduction header for this sample</note>
            <note priority="1" from="meaning">User welcome</note>
          </trans-unit>
          <trans-unit id="ba0cc104d3d69bf669f97b8d96a4c5d8d9559aa3" datatype="html">
            <source>I don&apos;t output any element</source>
            <target>Je n"affiche aucun élément</target>
          </trans-unit>
          <trans-unit id="701174153757adf13e7c24a248c8a873ac9f5193" datatype="html">
            <source>Angular logo</source>
            <target>Logo d"Angular</target>
          </trans-unit>
          <trans-unit id="5a134dee893586d02bffc9611056b9cadf9abfad" datatype="html">
            <source>{VAR_PLURAL, plural, =0 {just now} =1 {one minute ago} other {<x id="INTERPOLATION" equiv-text="{{minutes}}"/> minutes ago} }</source>
            <target>{VAR_PLURAL, plural, =0 {à l"instant} =1 {il y a une minute} other {il y a <x id="INTERPOLATION" equiv-text="{{minutes}}"/> minutes} }</target>
          </trans-unit>
          <trans-unit id="f99f34ac9bd4606345071bd813858dec29f3b7d1" datatype="html">
            <source>The author is <x id="ICU" equiv-text="{gender, select, male {...} female {...} other {...}}"/></source>
            <target>L"auteur est <x id="ICU" equiv-text="{gender, select, male {...} female {...} other {...}}"/></target>
          </trans-unit>
          <trans-unit id="eff74b75ab7364b6fa888f1cbfae901aaaf02295" datatype="html">
            <source>{VAR_SELECT, select, male {male} female {female} other {other} }</source>
            <target>{VAR_SELECT, select, male {un homme} female {une femme} other {autre} }</target>
          </trans-unit>
          <trans-unit id="972cb0cf3e442f7b1c00d7dab168ac08d6bdf20c" datatype="html">
            <source>Updated: <x id="ICU" equiv-text="{minutes, plural, =0 {...} =1 {...} other {...}}"/></source>
            <target>Mis à jour: <x id="ICU" equiv-text="{minutes, plural, =0 {...} =1 {...} other {...}}"/></target>
          </trans-unit>
          <trans-unit id="7151c2e67748b726f0864fc443861d45df21d706" datatype="html">
            <source>{VAR_PLURAL, plural, =0 {just now} =1 {one minute ago} other {<x id="INTERPOLATION" equiv-text="{{minutes}}"/> minutes ago by {VAR_SELECT, select, male {male} female {female} other {other} }} }</source>
            <target>{VAR_PLURAL, plural, =0 {à l"instant} =1 {il y a une minute} other {il y a <x id="INTERPOLATION" equiv-text="{{minutes}}"/> minutes par {VAR_SELECT, select, male {un homme} female {une femme} other {autre} }} }</target>
          </trans-unit>
          <trans-unit id="myId" datatype="html">
            <source>Hello</source>
            <target state="new">Bonjour</target>
          </trans-unit>
        </body>
      </file>
    </xliff>


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