subscribeMsg method
一次性订阅消息
Implementation
Future<void> subscribeMsg({
required int scene,
required String templateId,
String? reserved,
}) {
assert(templateId.length <= 1024);
assert(reserved == null || reserved.length <= 1024);
return _channel.invokeMethod<void>(
_METHOD_SUBSCRIBEMSG,
<String, dynamic>{
_ARGUMENT_KEY_SCENE: scene,
_ARGUMENT_KEY_TEMPLATEID: templateId,
if (reserved != null) _ARGUMENT_KEY_RESERVED: reserved,
},
);
}