callHandler method
Implementation
void callHandler(String method, {List? args, OnReturnValue? handler}) {
final callInfo = _CallInfo(method, ++_callID, args);
if (handler != null) {
_handlerMap[callInfo.callbackId] = handler;
}
if (_callInfoList != null) {
_callInfoList?.add(callInfo);
} else {
_dispatchJavaScriptCall(callInfo);
}
}