registerLangListener - Supernote

registerLangListener(langListener: PluginEventListener): PluginEventSubscription;

Listens for system language changes. When the system language switches, it triggers the callback and provides the language code string. Parameters

Parameter	Type	Description
`langListener`	`PluginEventListener`	Language change listener that implements `onMsg(msg)`. `msg` is the language code string

Returns

PluginEventSubscription: subscription object. Call remove() to unregister the listener

Language Codes

Language	Code
English	`en`
Simplified Chinese	`zh_CN`
Traditional Chinese	`zh_TW`
Japanese	`ja`

Type Definitions

PluginEventListener

interface PluginEventListener {
 onMsg(msg: string): void;
}

Description

onMsg(msg): triggered when the system language changes
msg: language code (see “Language Codes”)

PluginEventSubscription

type PluginEventSubscription = {
 remove(): void;
};

Example

import { PluginManager } from 'sn-plugin-lib';

/**
 * Example: listen for system language changes.
 */
export async function exampleRegisterLangListener() {
 const sub = PluginManager.registerLangListener({
 onMsg(langCode) {
 console.log('lang changed:', langCode);
 },
 });
 return sub;
}