best-flutter/flutter_refresh

A Flutter plugin for refreshing every scrollable view by pulling down-up.

flutter_refresh

A Flutter plugin for refreshing every scrollable view by pulling down-up.

Show cases

Roadmap

see:ROADMAP.md

Changelogs

see:CHANGELOG.md

Quick Start

Installation

1 Add

flutter_refresh : ^0.0.1

to your pubspec.yaml ,and run

flutter packages get 

in your project's root directory.

2 Add

import 'package:flutter_refresh/flutter_refresh.dart';

and write the code like this:

  Future<Null> onFooterRefresh() {
    return new Future.delayed(new Duration(seconds: 2), () {
      setState(() {
        _itemCount += 10;
      });
    });
  }

  
  Future<Null> onHeaderRefresh() {
    return new Future.delayed(new Duration(seconds: 2), () {
      setState(() {
        _itemCount = 10;
      });
    });
  }


  @override
  Widget build(BuildContext context) {
    ...
    return new Refresh(
          onFooterRefresh: onFooterRefresh,
          onHeaderRefresh: onHeaderRefresh,
          childBuilder: (BuildContext context,
              {ScrollController controller, ScrollPhysics physics}) {
            return new Container(
                child: new ListView.builder(
              physics: physics,
              controller: controller,
              itemBuilder: _itemBuilder,
              itemCount: _itemCount,
            ));
          },
        );
  }

full example see here: main.dart.

flutter_refresh's Issues

如果只有几条数据 就无法下拉刷新了

上拉加载更多的时候，数据还没有请求成功，底部的那个圈圈指示器就隐藏了

上拉加载更多的时候，数据还没有请求成功，底部的那个圈圈指示器就隐藏了，我就以为数据加载成功了，然后一看没有数据，是我用的不对，还是需要设置，怎么设置底部的圈圈指示器一直显示，等数据返回加载了再隐藏

下拉刷新没有显示动画，上拉没有问题

而且没有等待，一瞬间就没了

IOS系统中点击status bar无法回到顶部

下拉刷新展示异常

如果布局既有listview也有左右滑动（子项SingleChildScrollView）左右滑动时会出现下拉刷新，我是在你的_drag(ScrollNotification)方法里加入了方向判断

语言切换

放开刷新的语言切换的api是什么呢，

这个刷新加载更多控件有些情况的布局好像没有？

比如，刷新时，刷新失败情况展示的布局没有，上拉加载更多时，加载更多失败，没有更多等情况布局也没有，不知道是不是我还没看到。

这个刷新的指示器可以自定义吗？结束的时候 箭头有点跳跃

这个刷新的指示器可以自定义吗？结束的时候 箭头有点跳跃

刷新时顶部的下拉的距离没有回去

先上图：首先这个是默认的界面，刚初始化，还没刷新的

然后这个是刷新过后的，顶部多了个间距

最后这个是我把它往上滑的，顶部那个距离，就多出现了那个刷新时间

然后上代码：
两种放child的使用方式我都用过：
1.
@OverRide
Widget build(BuildContext context) {
return Refresh(
controller: _refreshController,
onHeaderRefresh: () {
_loadData();
},
childBuilder: ( _ , {controller, physics}) => ListView.builder(
physics: physics,
controller: controller,
itemBuilder: ( _ , index) => _widgets[index],
itemCount: _widgets.length,
),
);
}
2.
@OverRide
Widget build(BuildContext context) {
return Refresh(
controller: _refreshController,
onHeaderRefresh: () {
_loadData();
},
child: ListView.builder(
itemBuilder: ( _ , index) => _widgets[index],
itemCount: _widgets.length,
),
);
}
我的布局大概是这样：
MaterialApp ->
appbar: AppBar
body:Scaffold ->
Refresh

进入内容页返回报错了

I/flutter (10831): Another exception was thrown: A ValueNotifier was used after being disposed.
I/flutter (10831): Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4598 pos 14: 'oldChild == null || oldChild._debugLifecycleState == _ElementLifecycle.active': is not true.
I/chatty (10831): uid=10087(youliaowenzhou.net.news) Thread-4 identical 1 line
I/flutter (10831): Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4598 pos 14: 'oldChild == null || oldChild._debugLifecycleState == _ElementLifecycle.active': is not true.
I/flutter (10831): Another exception was thrown: A ValueNotifier was used after being disposed.
I/flutter (10831): Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 2810 pos 12: '_debugLifecycleState == _ElementLifecycle.active
I/flutter (10831): Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 3775 pos 12: 'child == _child': is not true.
I/flutter (10831): Another exception was thrown: Duplicate GlobalKeys detected in widget tree.
I/flutter (10831): Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4971 pos 12: '_children.contains(child)': is not true.
I/flutter (10831): Another exception was thrown: NoSuchMethodError: The getter 'userGestureInProgress' was called on null.
I/flutter (10831): Another exception was thrown: Duplicate GlobalKey detected in widget tree.
I/OMXClient(10831): IOmx service obtained