Need dispose method for clearing resources

[shashikantdurge]

There were memory leak issues in iOS when using this plugin.
Fixed it after using clearListeners()

No proper guide on freeing the resources.

Can we have dispose method in align with flutter ? where it will clearListeners, destroy, close, disconnect...

[jumperchen]

The code seem to be there already -

socket.io-client-dart/lib/src/manager.dart

Lines 432 to 445 in 5297bbf

	void close() => disconnect();
	void disconnect() {
	_logger.fine('disconnect');
	skipReconnect = true;
	reconnecting = false;
	if ('opening' == readyState) {
	// `onclose` will not fire because
	// an open event never happened
	cleanup();
	}
	backoff.reset();
	readyState = 'closed';
	engine?.close();

which will invoke engine#onClose() to clear all the listeners -

socket.io-client-dart/lib/src/engine/socket.dart

Line 687 in 5297bbf

transport.clearListeners();

[shashikantleher]

close() does not call clearListeners() due to which there was memory leak in iOS.
We have faced this issue in prod, took 2 days to figure out the issue for memory leak which was causing iOS crashes

[jumperchen]

@shashikantleher you mean transport.clearListeners() was not called or someone else?

[shashikantleher]

socket.clearListeners()