bin2277904333的博客

构造函数语法PosterDetail({Key key,@required this.testState,@required this.group}):super(key:key);上面是flutter官方例子上的方法，也是官方推荐的但是个人习惯用下面这种PosterDetail({@required this.testState,@required this.group}...

dependencies:http: ^0.12.0+2import 'package:http/http.dart' as http;http.Response response = await http.get(ProjectConstant.BaseUrl + "/img/findGroupList");如果 使用了 await 关键字，方法名称需要加async关键字...