I'm using DeviceEventEmitter to handle events of a favorite method, to which is subscribed in the constructor: 

DeviceEventEmitter.addListener("FavoriteClick", async (e) => { // do something })

This event listener stays active whenever the components unmounts (permenantly). What do I have to call to unsub? I've tried storing the event as a variable and calling listener.removeCurrentListener() in the componentWillUnmount() like the (limited) documentation states, if I understand that correctly, but removeCurrentListener() is not a method.

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1 Answer

DeviceEventEmitter is deprecated, you should use NativeEventEmitter instead.

Example :

import { NativeEventEmitter, NativeModules } from 'react-native'; const { CalendarManager } = NativeModules; const calendarManagerEmitter = new NativeEventEmitter(CalendarManager); const subscription = calendarManagerEmitter.addListener( 'EventReminder', (reminder) => console.log(reminder.name) ); ... // Don't forget to unsubscribe, typically in componentWillUnmount subscription.remove();
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