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PWA Elements

Capacitor のプラグインの中には、CameraToastのように、ネイティブで動作していないときにウェブベースの UI を利用できるものがあります。例えば、Camera.getPhoto()を呼び出すと、ウェブ上で動作しているときに、レスポンシブな写真撮影エクスペリエンスをロードします:

この UI は、Web コンポーネントを使って実装されています。Shadow DOM の魔法により、これらのコンポーネントは、あなた自身の UI と あなた自身の UI と衝突しないようにします。

Installation

To enable these controls, you must add @ionic/pwa-elements to your app.

A typical installation involves importing the package and registering the elements, or adding a script tag to the <head> of the index.html for your app:

Importing PWA Elements

npm install @ionic/pwa-elements

Then, depending on your framework of choice, import the element loader and call it at the correct time:

React

index.tsx or index.js:

import { defineCustomElements } from '@ionic/pwa-elements/loader';

ReactDOM.render(<App />, document.getElementById('root'));

// Call the element loader after the app has been rendered the first time
defineCustomElements(window);

Angular

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';

import { defineCustomElements } from '@ionic/pwa-elements/loader';

if (environment.production) {
  enableProdMode();
}

platformBrowserDynamic()
  .bootstrapModule(AppModule)
  .catch(err => console.log(err));

// Call the element loader after the platform has been bootstrapped
defineCustomElements(window);

Including through script tag

PWA Elements can be included through a script tag in your index.html. However, keep in mind this will not work for offline scenarios:

<script
  type="module"
  src="https://unpkg.com/@ionic/pwa-elements@latest/dist/ionicpwaelements/ionicpwaelements.esm.js"
></script>
<script
  nomodule
  src="https://unpkg.com/@ionic/pwa-elements@latest/dist/ionicpwaelements/ionicpwaelements.js"
></script>
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