fliggy-mobile / frefresh Goto Github PK

import 'dart:async';

import 'package:flutter/material.dart' hide NestedScrollView;
import 'package:frefresh/frefresh.dart';
import 'package:extended_nested_scroll_view/extended_nested_scroll_view.dart';
import '../commons/index.dart' show Util;

class CustomScrollViewPage extends StatefulWidget {
  @override
  _CustomScrollViewPageState createState() => _CustomScrollViewPageState();
}

class _CustomScrollViewPageState extends State<CustomScrollViewPage> {
  FRefreshController _fRefreshController;
  List<String> _tabs = ['111', '222', '333', '444', '555', '666'];
  String _appID = '';

  @override
  void initState() {
    super.initState();
    _getAppID();
    _fRefreshController = FRefreshController();
    _fRefreshController.setOnStateChangedCallback((state) {
      print('state = $state');
    });
  }

  _getAppID() async {
    _appID = await Util.appID();
    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    final double statusBarHeight = MediaQuery.of(context).padding.top;
    double pinnedHeaderHeight = statusBarHeight + kToolbarHeight;
    List<Widget> _silverBuilder(BuildContext context, bool innerBoxIsScrolled) {
      return <Widget>[
        SliverToBoxAdapter(
          child: Container(
            height: 368.0,
            color: Colors.yellow,
            child: Center(
              child: Text(
                _appID,
                style: TextStyle(color: Colors.red),
              ),
            ),
          ),
        ),
      ];
    }

    return FRefresh(
      controller: _fRefreshController,
      header: Image.asset(
        "assets/icon_refresh4.gif",
        height: 80.0,
        fit: BoxFit.fitHeight,
      ),
      headerHeight: 80.0,
      onRefresh: () {
        Timer(Duration(milliseconds: 3000), () {
          _fRefreshController.finishRefresh();
        });
      },
      child: Scaffold(
        body: Stack(
          children: <Widget>[
            DefaultTabController(
              length: _tabs.length, // This is the number of tabs.
              child: NestedScrollView(
                headerSliverBuilder: _silverBuilder,
                pinnedHeaderSliverHeightBuilder: () {
                  return pinnedHeaderHeight;
                },
                body: Column(
                  children: <Widget>[
                    TabBar(
                      labelColor: Theme.of(context).accentColor,
                      unselectedLabelColor: Theme.of(context).hintColor,
                      indicatorSize: TabBarIndicatorSize.label,
                      isScrollable: true,
                      tabs:
                          _tabs.map((String name) => Tab(text: name)).toList(),
                    ),
                    Divider(
                      height: 0,
                    ),
                    Expanded(
                      child: TabBarView(
                        children: _tabs.map((String name) {
                          return MediaQuery.removePadding(
                            context: context,
                            removeTop: true,
                            removeBottom: false,
                            child: ListView.separated(
                              key: PageStorageKey<String>(name),
                              itemCount: 100,
                              itemBuilder: (BuildContext context, int index) {
                                return ListTile(
                                    title: Text('title: ' + index.toString()));
                              },
                              separatorBuilder:
                                  (BuildContext context, int index) {
                                return Divider(
                                  height: 0,
                                );
                              },
                            ),
                          );
                        }).toList(),
                      ),
                    )
                  ],
                ),
              ),
            ),
            Positioned(
              left: 0,
              top: 0,
              right: 0,
              child: Container(
                padding: EdgeInsets.only(top: statusBarHeight),
                color: Theme.of(context).accentColor,
                height: pinnedHeaderHeight,
                child: Container(
                  height: kToolbarHeight,
                  color: Colors.red,
                  child: Row(
                    children: <Widget>[
                      Text('data'),
                      Icon(Icons.home),
                    ],
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}
[✓] Flutter (Channel stable, v1.17.3, on Mac OS X 10.15.5 19F101, locale zh-Hans-CN)
 
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.5)
[✓] Android Studio (version 4.0)
[✓] VS Code (version 1.45.1)
[✓] Connected device (1 available)

• No issues found!

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, 1.21.0-5.0.pre, on Mac OS X 10.15.4 19E287, locale zh-Hans)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    ✗ Android license status unknown.
      Try re-installing or updating your Android SDK Manager.
      See https://developer.android.com/studio/#downloads or visit
      https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions.
 
[✓] Xcode - develop for iOS and macOS (Xcode 11.4.1)
[✓] Android Studio (version 3.5)
[✓] VS Code (version 1.48.0)
[✓] Connected device (1 available)

❯ dart --version
Dart SDK version: 2.9.0-21.0.dev.flutter-9dca49e71e (be) (Fri Jul 17 13:26:08 2020 +0000) on "macos_x64"

frefresh: ^1.1.0

Another exception was thrown: RenderBox.size accessed beyond the scope of resize, layout, or permitted parent access. RenderBox can always access its own size, otherwise, the only object that is allowed to read RenderBox.size is its parent, if they have said they will. It you hit this assert trying to access a child's size, pass "parentUsesSize: true" to that child's layout().

════════ Exception caught by rendering library ═════════════════════════════════
RenderBox.size accessed beyond the scope of resize, layout, or permitted parent access. RenderBox can always access its own size, otherwise, the only object that is allowed to read RenderBox.size is its parent, if they have said they will. It you hit this assert trying to access a child's size, pass "parentUsesSize: true" to that child's layout().
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1709 pos 13: 'debugDoingThisResize || debugDoingThisLayout ||
              (RenderObject.debugActiveLayout == parent && _size._canBeUsedByParent)'
The relevant error-causing widget was
    FRefresh