用闲鱼flutterboost框架时，emptyView显示不出来

[galaxybruce]

用闲鱼flutterboost框架时，EmptyView显示不出来。同样的代码在demo中就可以。 下面是测试代码： `import 'dart:async';

import 'package:flutter/material.dart'; import 'package:flutter_easyrefresh/easy_refresh.dart';

/// 空视图示例 class EmptyPage extends StatefulWidget { @override EmptyPageState createState() { return EmptyPageState(); } } class EmptyPageState extends State { // 总数 int _count = 0; EasyRefreshController _controller; ScrollController _scrollController;

@override void initState() { super.initState(); _controller = EasyRefreshController(); _scrollController = ScrollController(); }

@override void dispose() { super.dispose(); _controller.dispose(); _scrollController.dispose(); }

@override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('emptyWidget'), backgroundColor: Colors.white, ), body: EasyRefresh.custom( firstRefresh: true, controller: _controller, scrollController: _scrollController, firstRefreshWidget: Container( width: double.infinity, height: double.infinity, child: Center( child: SizedBox( height: 200.0, width: 300.0, child: Card( child: Column( mainAxisAlignment: MainAxisAlignment.center, crossAxisAlignment: CrossAxisAlignment.center, children: [ Container( child: Text('loading'), ) ], ), ), ) ), ), emptyWidget: _count == 0 ? Container( height: double.infinity, child: Column( mainAxisAlignment: MainAxisAlignment.center, crossAxisAlignment: CrossAxisAlignment.center, children: [ Text( 'noData', style: TextStyle(fontSize: 16.0, color: Colors.grey[400]), ), Expanded(child: SizedBox(), flex: 3,), ], ), ): null, slivers: [ SliverList( delegate: SliverChildBuilderDelegate( (context, index) { return null; }, childCount: _count, ), ), ], onRefresh: () async { setState(() { _count = 0; });

      _controller.resetLoadState();
      _controller.finishRefresh();
    },
    onLoad: () async {
      await Future.delayed(Duration(seconds: 2), () {
        setState(() {
          _count += 0;
        });
      });
    },
  ),
);

} }`

[galaxybruce]

empty_widget.dart中size是0.

[xuelongqy]

flutterboost目前可能存在部分不稳定情况，你可以搜集问题到flutterboost反馈，或者通过计算高度实现emptyView