如何在Ionic3+TypeScript项目中无修改集成EmojiOne的unicodeToImage函数？

Hey there! I've got you covered on using the unicodeToImage function from EmojiOne in your Ionic 3 app—no need to tweak any code in your node_modules folder. Here's a straightforward step-by-step guide:

Step 1: Install EmojiOne #

First, install the package via npm if you haven't already:

npm install emojione --save

Step 2: Import the Library in Your Component/Service #

Since EmojiOne is a pure JavaScript library, you can import it directly in your Ionic component or service. If TypeScript throws a "module not found" error (because there's no official type definition), you can add a quick declaration to fix it:

1. Add a module declaration (if needed):
   Create or update src/typings.d.ts and add this line:

   declare module 'emojione';
   

2. Import in your component:
   In your .ts file (e.g., home.ts), import the library:

   import * as emojione from 'emojione';
   

Step 3: Configure EmojiOne (Optional but Recommended) #

Before using the unicodeToImage function, you can set custom configurations (like image paths) without modifying the original library. For example, if you want to use local emoji images instead of CDN ones:

1. Download the EmojiOne image assets (PNG or SVG) from the official repo.
2. Copy them to your Ionic app's assets/emojis folder (create the folder if it doesn't exist).
3. Set the image path in your component:

   // For PNG images
   emojione.imagePathPNG = 'assets/emojis/png/';
   // Or for SVG images
   // emojione.imagePathSVG = 'assets/emojis/svg/';
   

Step 4: Use the unicodeToImage Function #

Now you can call the function directly to convert unicode emojis to image tags. Since the output is HTML, you'll need to use Angular's [innerHTML] directive to render it in your template:

In your component class: #

export class HomePage {
  originalText: string = 'Hello! 😀 This is a test with emojis 🎉';
  convertedText: string;

  constructor() {
    // Configure EmojiOne first if needed
    emojione.imagePathPNG = 'assets/emojis/png/';
    // Convert the text
    this.convertedText = emojione.unicodeToImage(this.originalText);
  }
}

In your template (home.html): #

<div [innerHTML]="convertedText"></div>

Key Notes #

• No node_modules modifications: All configurations are done in your app's code, so future updates to EmojiOne won't overwrite your settings.
• HTML rendering: Always use [innerHTML] instead of interpolation ({{ }}) to render the converted text, since unicodeToImage returns HTML markup.
• Asset loading: Make sure your emoji image paths are correct so the app can load them properly. You can verify this by checking the network tab in your browser's dev tools.

内容的提问来源于stack exchange，提问作者davidesp