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@ -1,592 +0,0 @@
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/*
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* ====================================================
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* package : widgets
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* author : Created by nansi.
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* time : 2019/5/13 1:44 PM
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* remark :
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* ====================================================
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*/
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import 'package:aku_new_community/utils/text_utils.dart';
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import 'package:flutter/material.dart';
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/// 自筛选列表点击监听
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typedef SelectedListener = Function(int selectedIndex, FilterItemModel item);
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/// 下拉列表状态变更
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typedef PopOptionHandle = Function(OptionListStatus status);
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/// filterBar 标题点击、变更等监听
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typedef FilterToolBarListener = Function(bool update);
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class FilterToolBarController {
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late FilterResultContainerHelper helper;
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late int selectedIndex;
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late FilterItemModel item;
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late GlobalKey _containerKey;
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late GlobalKey _toolBarKey;
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/// [update] 是否需要通知外层 sublist 点击的index 和上次一致时，不通知外层
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FilterToolBarListener updateToolBarState = (bool update) {};
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close() {
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helper.changeOptionListStatus(OptionListStatus.close);
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}
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get toolBarDx {
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RenderBox box = _toolBarKey.currentContext?.findRenderObject()
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as RenderBox; //_toolBarKey.currentContext.findRenderObject();
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Offset offset = box.localToGlobal(Offset.zero);
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return offset.dx;
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}
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double get toolBarDy {
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/// toolbar 距离top 的间距 - container外层距离top的间距
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RenderBox containerBox =
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_containerKey.currentContext?.findRenderObject() as RenderBox;
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RenderBox box = _toolBarKey.currentContext?.findRenderObject() as RenderBox;
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Offset containerTopOffset = containerBox.localToGlobal(Offset.zero);
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Offset toolBarTopOffset = box.localToGlobal(Offset.zero);
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return toolBarTopOffset.dy - containerTopOffset.dy;
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}
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////获取position
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// RenderBox box = _key.currentContext.findRenderObject();
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// Offset offset = box.localToGlobal(Offset.zero);
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//
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////获取size
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// Size size = box.size;
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// print(" ---- $offset ------- $size");
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}
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enum OptionListStatus { open, close }
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/// 筛选子列表操作
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class FilterResultContainerHelper {
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final PopOptionHandle handle;
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/// 字筛选列表弹出状态
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late OptionListStatus status;
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FilterResultContainerHelper({required this.handle});
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changeOptionListStatus(OptionListStatus status) {
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this.status = status;
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this.handle(status);
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}
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}
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/// 筛选下拉列表容器 与 FilterToolBar 一起使用
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class FilterToolBarResultContainer extends StatefulWidget {
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final FilterToolBarController? controller;
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final Widget? body;
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const FilterToolBarResultContainer(
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{GlobalKey? key, this.controller, this.body})
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: assert(controller != null, "controller 不为空");
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@override
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State<StatefulWidget> createState() {
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return _FilterToolBarResultContainerState();
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}
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}
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class _FilterToolBarResultContainerState
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extends State<FilterToolBarResultContainer> with TickerProviderStateMixin {
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/// 子列表行数
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late int _lines;
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int maxLines = 3;
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/// 子列表单行高度
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double _lineHeight = 35.0;
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/// 底部内边距
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double _bottomSpacing = 8.0;
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/// 顶部边距
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double _topSpacing = 8.0;
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/// 未选中颜色
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Color _unselectedColor = Colors.grey[700]!;
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/// toolbar 字体大小
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// double _toolBarTitleFont = 14.0;
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/// 子列表字体大小
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double _subTitleFont = 13.0;
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/// 子列表单行内边距 因为点击要整行选中，所以在row上设置左右边距
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EdgeInsetsGeometry _subtitleRowPadding = EdgeInsets.only(left: 15, right: 15);
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late AnimationController _animationController;
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late Animation<double> _animation;
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@override
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void initState() {
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_animationController =
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AnimationController(vsync: this, duration: Duration(milliseconds: 150));
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_lines = maxLines;
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widget.controller?.helper = FilterResultContainerHelper(handle: (status) {
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if (status == OptionListStatus.open) {
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_buildAnimation(widget.controller!.item);
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_animationController.forward();
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} else {
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_animationController.reset();
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}
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});
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if (widget.key == null) {
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widget.controller!._containerKey = GlobalKey();
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} else {
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widget.controller!._containerKey = widget.key as GlobalKey;
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}
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super.initState();
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}
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@override
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void dispose() {
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_animationController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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key: widget.controller!._containerKey,
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child: _buildBody(context),
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);
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}
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Stack _buildBody(BuildContext context) {
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return Stack(
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children: <Widget>[
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/// body内容
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Container(
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height: double.infinity,
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child: widget.body,
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),
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/// 蒙版
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_maskView(),
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widget.controller?._toolBarKey == null
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? Container()
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: Positioned(
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top: widget.controller!.toolBarDy + 40,
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left: 0,
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right: 0,
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bottom: 0,
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child: Stack(children: [
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widget.controller!.item.type == FilterItemType.list
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? _buildList(context)
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: Container(),
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]))
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],
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);
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}
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Widget _maskView() {
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double? num = widget.controller?.toolBarDy;
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return widget.controller?._toolBarKey == null
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? Container()
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: Positioned(
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top: (num as double) + 40,
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left: 0,
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right: 0,
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bottom: 0,
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child: Offstage(
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child: GestureDetector(
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behavior: HitTestBehavior.translucent,
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onTap: () {
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widget.controller!.helper.changeOptionListStatus(
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OptionListStatus.close,
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);
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widget.controller!.updateToolBarState(false);
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_animationController.reset();
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},
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child: Opacity(
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opacity: 0.3,
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child: Container(
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color: Colors.black,
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),
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),
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),
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offstage: _animation == null ||
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(_animation.status == AnimationStatus.dismissed),
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),
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);
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}
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/// 有多个子列表时 因为有设置最大行数，小于最大行数[widget.maxLines]时，以子列表个数为准，
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/// 否则以最大行数为准，选中时切换动画,
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_buildAnimation(FilterItemModel item) {
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_lines =
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item.subtitles!.length > maxLines ? maxLines : item.subtitles!.length;
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_animation = new Tween(
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begin: 0.0 - _lines * _lineHeight - _bottomSpacing - _topSpacing,
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end: 0.0)
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.animate(_animationController)
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..addListener(() {
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setState(() {
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// the state that has changed here is the animation object’s value
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});
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});
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}
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/// 筛选子列表
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Positioned _buildList(context) {
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FilterItemModel item = widget.controller!.item;
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return Positioned(
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top: _animation.value,
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left: 0,
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right: 0,
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child: LimitedBox(
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maxHeight: _lineHeight * _lines + _topSpacing + _bottomSpacing,
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child: Container(
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padding: EdgeInsets.only(bottom: _bottomSpacing, top: 5),
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height: _lineHeight * item.subtitles!.length +
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_bottomSpacing +
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_topSpacing,
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decoration: BoxDecoration(
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color: Color.fromARGB(240, 255, 255, 255),
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borderRadius: BorderRadius.only(
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bottomLeft: Radius.circular(10),
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bottomRight: Radius.circular(10))),
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child: MediaQuery.removePadding(
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context: context,
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removeTop: true,
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child: ListView.builder(
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physics: NeverScrollableScrollPhysics(),
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controller: PrimaryScrollController.of(context),
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itemCount: item.subtitles!.length,
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itemBuilder: (context, index) {
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bool subTitleSelected = item.selectedSubIndex == index;
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return Container(
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height: _lineHeight,
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child: RawMaterialButton(
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onPressed: () {
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widget.controller!.helper
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.changeOptionListStatus(OptionListStatus.close);
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widget.controller!.updateToolBarState(false);
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if (item.selectedSubIndex == index) return;
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item.selectedSubIndex = index;
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String title = item.subtitleShort == null ||
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TextUtils.isEmpty(item.subtitleShort![index])
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? item.subtitles![index]
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: item.subtitleShort![index];
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item.title = title;
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widget.controller!.updateToolBarState(true);
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},
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child: _sublistItem(index, item, subTitleSelected),
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),
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);
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}),
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),
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),
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),
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);
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}
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/// 子列表item
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Container _sublistItem(
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int index, FilterItemModel item, bool subTitleSelected) {
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return Container(
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padding: _subtitleRowPadding,
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child: Row(
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children: <Widget>[
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Offstage(
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child: Padding(
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padding: EdgeInsets.symmetric(horizontal: 8),
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child: Icon(
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Icons.check,
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size: 17,
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color: Colors.red,
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),
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),
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offstage: index != item.selectedSubIndex,
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),
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Expanded(
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child: Text(
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item.subtitles![index],
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style: TextStyle(
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fontSize: _subTitleFont,
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color: _unselectedColor,
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fontWeight:
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(subTitleSelected ? FontWeight.w600 : FontWeight.w400)),
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)),
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],
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),
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);
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}
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}
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class FilterToolBar extends StatefulWidget {
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FilterToolBar({
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required this.titles,
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required this.listener,
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required this.controller,
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this.selectedColor,
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this.maxLines = 4,
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this.trialing,
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this.startWidget,
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this.fontSize = 15.0,
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this.height = 40,
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}) : assert(listener != null, "请设置监听事件"),
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assert(controller != null, "请设置controller");
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final List<FilterItemModel> titles;
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final Color? selectedColor;
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final int maxLines;
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final SelectedListener listener;
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final Widget? trialing;
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final Widget? startWidget;
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final FilterToolBarController? controller;
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final double fontSize;
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final double height;
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@override
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State<StatefulWidget> createState() {
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return _FilterToolBarState();
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}
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}
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class _FilterToolBarState extends State<FilterToolBar>
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with TickerProviderStateMixin {
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Color _unselectedColor = Colors.grey[700]!;
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GlobalKey _key = GlobalKey();
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@override
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void initState() {
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super.initState();
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widget.controller?.selectedIndex = widget.controller?.selectedIndex ?? 0;
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widget.controller?._toolBarKey = _key;
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widget.controller?.updateToolBarState = (bool update) {
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// print("----- ${widget.controller.selectedIndex}");
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if (update) {
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widget.listener(
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widget.controller!.selectedIndex, widget.controller!.item);
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}
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setState(() {});
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};
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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width: double.infinity,
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height: widget.height,
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child: _buildToolBar(),
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);
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}
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Container _buildToolBar() {
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List<Widget> items = <Widget>[];
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if (widget.startWidget != null) {
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items.add(SizedBox(
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width: 60,
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));
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items.add(widget.startWidget!);
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items.add(SizedBox(
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width: 20,
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));
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}
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items.addAll(_buildToolBarItem());
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if (widget.trialing != null) {
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items.add(widget.trialing!);
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}
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return Container(
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key: _key,
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height: 40,
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decoration: BoxDecoration(
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color: Colors.white,
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border: Border(
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top: BorderSide(color: Colors.grey[200]!, width: 0.5),
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bottom: BorderSide(color: Colors.grey[200]!, width: 0.5))),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: items,
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),
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);
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}
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List<Expanded> _buildToolBarItem() {
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return widget.titles.map((item) {
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int index = widget.titles.indexOf(item);
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bool selected = index == widget.controller?.selectedIndex;
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Color color = (selected ? widget.selectedColor : _unselectedColor)!;
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return Expanded(
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child: GestureDetector(
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onTap: () {
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widget.controller?.item = item;
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/// 列表弹出后直接点击toolbar上按钮 列表消失
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if (widget.controller?.helper != null &&
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widget.controller?.helper.status == OptionListStatus.open) {
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widget.controller?.helper.changeOptionListStatus(
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OptionListStatus.close,
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);
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} else {
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if (item.type == FilterItemType.list) {
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/// 当前已选中，再次点击弹出列表
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if (widget.controller?.selectedIndex == index) {
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if (widget.controller?.helper != null) {
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widget.controller?.helper.changeOptionListStatus(
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OptionListStatus.open,
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);
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} else {
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FlutterError("列表类型需要与 FilterToolBarResultContainer 一起使用");
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}
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} else {
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/// 点击其他列表项时，把当前列表项之前选中的状态返回
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widget.listener(index, item);
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}
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}
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}
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/// 上下箭头选项点击
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if (item.type == FilterItemType.double) {
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if (widget.controller?.selectedIndex != index) {
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item.selectedList![index] = true;
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item.topSelected = item.selectedList![index];
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} else {
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//print(item.topSelected);
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//item.topSelected = !item.topSelected;
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// print(widget.titles[index].topSelected);
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item.selectedList![index] = !item.selectedList![index];
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item.topSelected = item.selectedList![index];
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}
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widget.listener(index, item);
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}
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/// 普通
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else if (item.type == FilterItemType.normal) {
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if (widget.controller?.selectedIndex == index) return;
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widget.listener(index, item);
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}
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widget.controller?.selectedIndex = index;
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setState(() {});
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},
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child: Container(
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color: Colors.white,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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Text(item.title,
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style: TextStyle(
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fontSize: widget.fontSize,
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color: color,
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fontWeight: FontWeight.w400)
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// AppTextStyle.generate(widget.fontSize,
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// color: color, fontWeight: FontWeight.w400),
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),
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_buildArrow(item, color, selected, index)
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],
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),
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),
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),
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);
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}).toList();
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}
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_buildArrow(FilterItemModel item, color, bool selected, int index) {
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if (item.type == FilterItemType.list) {
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return Icon(
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selected
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? (widget.controller?.helper != null &&
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widget.controller?.helper.status == OptionListStatus.open
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? Icons.arrow_drop_up
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: Icons.arrow_drop_down)
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: Icons.arrow_drop_down,
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color: color,
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size: 19,
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);
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} else if (item.type == FilterItemType.double) {
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if (selected) {
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return Padding(
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padding: const EdgeInsets.only(left: 2.0),
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child: Icon(
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item.selectedList![index]
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? IconData(0xe620, fontFamily: "AppIcons")
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: IconData(0xe621, fontFamily: "AppIcons"),
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size: 7,
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color: color,
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),
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);
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} else {
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return Padding(
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padding: const EdgeInsets.only(left: 2.0),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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Icon(
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IconData(0xe620, fontFamily: "AppIcons"),
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size: 7,
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color: _unselectedColor,
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),
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Icon(
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IconData(0xe621, fontFamily: "AppIcons"),
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size: 7,
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color: _unselectedColor,
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),
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],
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),
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);
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}
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} else {
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return Container();
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}
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}
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}
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enum FilterItemType {
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/// 列表形式
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list,
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/// 价格等上下箭头
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double,
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/// 普通
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normal
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}
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class FilterItemModel {
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final FilterItemType type;
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String title;
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final List<String>? subtitles;
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/// 列表下拉时的子标题
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final List<String>? subtitleShort;
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List<bool>? selectedList;
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bool topSelected;
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int selectedSubIndex = 0;
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FilterItemModel({
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required this.type,
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required this.title,
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this.selectedList,
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this.subtitles,
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this.subtitleShort,
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this.topSelected = true,
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}) : assert(
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type == FilterItemType.list
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? (subtitles != null && subtitles.length > 0)
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: true,
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"type为list，列表项不能为空");
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}
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