variablesSync method
同步读取变量,返回值为空间域变量Json
Implementation
@override
String variablesSync(String pageName, Map<dynamic, dynamic> variableNames) {
var msg = FairMessage(pageName, FairMessage.VARIABLE, variableNames);
var from = msg.from();
return _channel!.sendCommonMessageSync(jsonEncode(from));
}