postMessage method
Post a message
to the injected JavaScript object which sent this JavaScriptReplyProxy.
Official Android API: https://developer.android.com/reference/androidx/webkit/JavaScriptReplyProxy#postMessage(java.lang.String)
Implementation
Future<void> postMessage(String message) async {
Map<String, dynamic> args = <String, dynamic>{};
args.putIfAbsent('message', () => message);
await _webMessageListener._channel.invokeMethod('postMessage', args);
}