c# - Flutter中 'Future'的实例

Question

我从服务器获取一个int Id，该服务器在HTTP请求中抖动，可以，并且我想将此值保存在变量中，但是当我调用返回的值时，我得到了这个错误“Future”的实例，有什么建议吗？ ？
这是代码

                    child: RaisedButton(onPressed:() {
                    CurrentPrjId= SaveProject();
                    print("CurrentPrjId Is saved CurrentPrjId :::::::: " );
                    print(CurrentPrjId);
                    Navigator.of(context).pushReplacementNamed('/AllUSerStories');
                }
//Save Project

  Future SaveProject() async {

//SaveProjectResult has the id of the current created project which i need that for its user stories
var SaveProjectResult = await GetPostProjects().createProject(_ProjectnameController.text, _CustomernameController.text, _dropNewItem, _dropNewItem2, _StartDateController.text, _EndDateController.text,);
print(":::::::::::::::::::::::::::::::The Project Is Created And Here Its ID In SaveProject:::::::::");
print(SaveProjectResult);
return SaveProjectResult;

}

Answer 1

没有代码，很难猜测发生了什么。.但是您可以尝试等待将来的完成..这样做:

methOdThatLoadsId().then((id) => print("Id that was loaded: $id"));

要么

var id = await methodThatLoadsId();

祝好运 :)