Update native-modules-android.md

[simonbrunou]

Those two methods are missing in the documentation and an exception is sent if they are not in the code.

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[satya164]

Can you post what exception you got and share a link to the native module which implemented this?

[simonbrunou]

When omitting addListener, this is the exception:

`new NativeEventEmitter()` was called with a non-null argument without the required `addListener` method.

When omitting removeListeners, this is the exception:

`new NativeEventEmitter()` was called with a non-null argument without the required `removeListeners` method.

I cannot share a link to the native module which implemented this when I was confronted with the problem as it is proprietary source code. However I can put together a file that implements it quickly, if needed.

[rubennorte]

Thanks @simonbrunou for improving our docs! This was definitely incomplete without the examples that you added. Can you please address my comment so we can merge it? Thanks!

[simonbrunou]

Thanks @simonbrunou for improving our docs! This was definitely incomplete without the examples that you added. Can you please address my comment so we can merge it? Thanks!

I think it's done, however I'm not familiar with GitHub's interface so correct me if I did something wrong.

[Simek]

Hi @simonbrunou, thank you for bringing this topic up! 👍

Since the change landed in 0.65 release (facebook/react-native@114be1d), please update also versioned docs for 0.65 and 0.66 besides the next file:

• https://github.com/facebook/react-native-website#versioned-docs

[simonbrunou]

I rebased on main and added the changes to the documentation.

[Simek]

It looks like you did not force push after rebase, which leads to malformed PR, please fix that. 😉

[simonbrunou]

It should be good now.

[Simek]

Thank you for the updates! 👍

From the technical standpoint it LGTM, but let's wait with the merge for the @rubennorte approval on the wording/description changes. 🙂

[rubennorte]

I think we can still improve the comment. I don't think the current one is useful to tell people what this is for, only that's required. We could say something like what we say on iOS.

So instead of:

 // Keep: Required for RN built in Event Emitter Calls.

We could use something like:

@ReactMethod
public void addListener(String eventName) {
  // Set up any upstream listeners or background tasks as necessary
}

@ReactMethod
public void removeListeners(Integer count) {
  // Remove upstream listeners, stop unnecessary background tasks
}

@simonbrunou could you please make these changes? Sorry for the back and forth.

[simonbrunou]

Updated the files 👍

[rubennorte]

Thanks for improving our website, @simonbrunou!