加载完成后，Flutter智能刷新器不会隐藏

问题描述

下面是我的dart代码，用于在我的聊天应用程序中进行上拉以加载更多选项。我有一个问题，当我拔出一次聊天框时，聊天框将重新加载，但是文本类型框下的单词不会自动隐藏。附件中显示了我的聊天视图的屏幕截图。加载完成后如何自动隐藏这些单词。有人请帮帮我。 谢谢。

Screenshot

@override
  Widget build(BuildContext context) {
    Timer(Duration(milliseconds: 1000),() => _controller.jumpTo(_controller.position.maxScrollExtent));
    return new WillPopScope(
        onWillPop: _onWillPop,child: new Scaffold(
      appBar: new AppBar(
        title: Text(name),),body: SmartRefresher(
          enablePullUp: true,enablePullDown: false,controller: _refreshController,onLoading: getChat,child: _saving?new Stack(
            children: [
              new Opacity(
                opacity: 0.3,child: const ModalBarrier(dismissible: false,color: Colors.grey),new Center(
                child: new CircularProgressIndicator(),],):new Container(
            child: new Column(
            children: <Widget>[
            new Flexible(
              child:new ListView.builder(
//                reverse: true,//                shrinkWrap: true,controller: _controller,itemCount: msg_list == null ? 0 : msg_list.length,itemBuilder: (BuildContext context,int index) {
                  if (msg_list[index]["NoMessageFound"] != null) {
                    return Column(
                      children: <Widget>[
                        new ListTile(
                          title: Text("No Messages"),);
                  } else {
                    label = msg_list[index]["body"];
                    var sign;
                    if (msg_list[index]["direction"] == "outbound") {
                      return createOutboundTile(label,msg_list[index]["time"]);
                    } else {
                      return createInboundTile(label,msg_list[index]["time"]);
//
                    }

                  }
                },new Divider(height: 1.0),new Container(
              decoration:
              new BoxDecoration(color: Theme.of(context).cardColor),child: _buildTextComposer(),new Builder(builder: (BuildContext context) {
//              _scaffoldContext = context;
              return new Container(width: 0.0,height: 0.0);
            }),decoration: Theme.of(context).platform == TargetPlatform.iOS
              ? new BoxDecoration(
              border: new Border(
                  top: new BorderSide(
                    color: Colors.grey[200],)))
              : null,)
    ));
  }

  Future<Null> getChat() async {
    setState(() {
      _saving = true;
    });
    String did = await SharedPreferencesHelper.getDidValue();
    String user_name = await SharedPreferencesHelper.getUserName();
    String usr_pwd = await SharedPreferencesHelper.getUserPassword();
    http.post("http://xxx.xx.xxx.xxx/r_p_a_p/get_single_chat.php",body: {
          "username": user_name,"password": usr_pwd,"did": did,"number" : "1"+number
        }).then((response) {
          _refreshController.loadComplete();
      this.setState(() {
        _saving = false;
      });
      if (response.statusCode != 200) {
        _showdilog(context,"Server failed to respond.");
        return "failed";
      }
      var jsonResponse = convert.jsonDecode(response.body);
      if (jsonResponse["result"]) {
        this.setState(() {
          msg_list = jsonResponse["list"];
        });
         timer = new Timer.periodic(new Duration(seconds: 1),(timer) {
          refreshMessage();
        });
      } else {
        this.logout();
      }
      if(_controller.hasClients) {
        _controller.jumpTo(_controller.position.maxScrollExtent);
      }
      return "Success";
    });
  }

解决方法

您必须通知SmartRefresher加载已完成，在数据加载后调用_refreshController.loadComplete();。

,

footer: const ClassicFooter(
                        loadStyle: LoadStyle.ShowWhenLoading),

这会帮助你。 您只需要更改 loadStyle 的默认属性。