sendMessage method
Send message to companion app, message can only be sent if getReachability is true
Implementation
Future<void> sendMessage(Map<String, dynamic> message,
{MessageReplyHandler? replyHandler}) {
String? handlerId;
if (replyHandler != null) {
handlerId = getRandomString(20);
_watchOSObserver.replyHandlers[handlerId] = replyHandler;
}
return channel.invokeMethod("sendMessage", {
"message": message,
if (handlerId != null) "replyHandlerId": handlerId
});
}