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global event listener extension for react or react-native

License: MIT License

JavaScript 100.00%

event-listener react react-native

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rajanpn enlian siamak saravananpackirisamy pct parsempo erickmaedadeloitte rspock opencollective erhanbicer lis0u janak-nirmal tolgaberk roosberrypi alamastro mariovillamizar rnproj capella55

react-native-event-listeners's Issues

Do we really need to remove listeners?

We are using this for token refresh. when token is refreshed an event is emitted. On IOS, we get a crash when phone is locked for a little while. Can you please advise why that is the case or is removing listeners really important?

Add TypeScript Types (.d.ts)

declare module "react-native-event-listeners" {
  class EventRegister {

    static addEventListener(eventName: string, callBack: () => void): string | boolean
    static removeEventListener(listenerRef: any): boolean
    static removeAllListeners(): boolean
    static emitEvent(eventName: string): void

    static on(eventName: string, callBack: () => void): string | boolean
    static rm(listenerRef: any): boolean
    static rmAll(): boolean
    static emit(eventName: string): void
  }
  export { EventRegister }
}

This project is awesome!

@meinto, thanks to bring it to us!

Closing... 👍

Listener never called

I am emitting an event in one Component like this...

EventRegister.emit(Constants.EVENT_REDEEMED_COUPON, json)

I have registered a listener like this...

componentWillMount(){
    this.listener = EventRegister.addEventListener(Constants.EVENT_REDEEMED_COUPON, (coupon) => {
            this.setState({
                coupon : coupon,
            })
            this.makeRemoteRequest();
        })
  }

When an event is emitted, the listener is never called.

How can I debug this?

Send objects

Is this possible to send objects?

Is there a way to listen globally to any event such as `onPress`?

I don't want to have to manually emit an event on every button

sender from another js file

hi, as title,
could it work with the receiver in A.js, and sender in B.js?
thanks in advance

Not working on real device(Release mode)

Integrated this library for emitting events on an action and on other screen added some listeners to listen for the same events, which is working pretty fine as expected on simulator and device during debugging. But after release builds are generated for iOS and Android devices, its not working at all.

Anyone else has faced same issue?

removeAllListeners or removeEventListener doesn't change the count

Thank you for this awesome module.

Whenever I perform removeEventListener or removeAllListeners after registering a listener it does remove from ref array but count property remains unchanged. Why is that?

In addition to that, if I emit an event after removing the listener it still invokes the handler. Anything I'm missing here?

listener is called multiple times

In my case, the listener is called multiple times for each emit.

  useEffect(() => {
    const lst = EventRegister.addEventListener("nextprev", (data) => {
      tr("EventRegister.addEventListener " + data);
      if (data === "next") {
        handleSkipToNext();
      } else {
        handleSkipToPrevious();
      }
    });
    return () => {
      EventRegister.removeAllListeners();
    };

  }, []);

I emit like this:

<IconButton
  icon="skip-next"
  onPress={() => {
     EventRegister.emit("nextprev", "next");
  size={iconSize}
/>

Did I miss something?

Compilation time error: You may need an additional loader to handle the result of these loaders.

./node_modules/react-native-event-listeners/index.js 4:20
Module parse failed: Unexpected token (4:20)
File was processed with these loaders:

./node_modules/react-scripts/node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
|
| class EventRegister {

static _Listeners = {
| count: 0,
| refs: {}

Can not get listner in second class

I have to implement the same thing as per provided example but I can not get the argument in second class.

Bu t I can get console.log("@@@@@@", EventRegister._Listeners)

Event listing being triggered twice

I have a simple popup component that I call using the event listener but the event listener is being called twice, I get two popups one on top of each other and I see two logs in the console. See below my code.

My listener component:

`
export const PopupModal = (props) => {
const [isModalVisible, setModalVisible] = useState(false)

const toggleModal = () => {
    setModalVisible(!isModalVisible);
};
const [msg, setMsg] = useState(() => {
    return {
        title: '',
        buttonText: '',
        message: ''
    }
})
useEffect(() => {
    const subscribe = EventRegister.addEventListener('showMsg', (data) => {
        setMsg(data)
        setModalVisible(true)

    })

    return () => {
        EventRegister.removeEventListener(subscribe)
    }
}, [])

return (
    <>
        {isModalVisible && <View style={{ flex: 1, position:'absolute' }}>
            <Modal coverScreen={true} isVisible={isModalVisible} >
                <View style={Styling.popupContainer}>
                    <Text style={Styling.popupTitle}>{msg.title}</Text>
                    <Text style={Styling.popupText}>{msg.message}</Text>
                    <View >
                        <TouchableOpacity style={Styling.popupTouchableOpacity} onPress={toggleModal} ><Text style={Styling.touchableOpacityTxt}>{msg.buttonText}</Text></TouchableOpacity>
                    </View>
                </View>
            </Modal>
        </View>}
    </>

);

}
`

its being triggered onPress like so
EventRegister.emit('showMsg', messagesService.popUpContactUsError)

Thanks in advance

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