SliverList:将子组件放置在一个垂直列表中,可以根据需要动态加载和卸载列表项。 SliverGrid:将子组件放置在一个网格中,可以根据需要动态加载和卸载网格项。 SliverPadding:为子组件提供填充,以使它们与其他 Sliver 组件的大小和位置保持一致。 SliverToBoxAdapter:将一个普通的组件包装成一个 Sliver 组件,以便将其放置...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 ReorderableListView({Key key,this.header,// 列表头部标题@requiredthis.children,// 列表子类 item@requiredthis.onReorder,// 拖拽到新位置时回调this.scrollDirection=Axis.vertical,// 滑动方向,水平或竖直this.padding,// 内边距,仅用于 childrenthis.rever...
class PersistentHeaderRoute extends StatelessWidget { @override Widget build(BuildContext context) { return CustomScrollView( slivers: [ buildSliverList(), SliverPersistentHeader( pinned: true, delegate: SliverHeaderDelegate(//有最大和最小高度 maxHeight: 80, minHeight: 50, child: buildHeader(1), ...
children: [ for (final header in data) ...[ ListTile(title: Text('**${header['CategoryName']}**')), for (final item in header['Children'] ?? []) ListTile(title: Text(' ${item['CategoryName']}')), ], ], ), ), ); } } const List<Map<String, dynamic>> data = [ { "...
'ScrollPositionWithSingleContext' 是 Flutter 中用于滚动定位的一个关键类。它表示一个滚动位置,通常是屏幕上的可滚动区域,如 ListView 和 GridView 等。在单一的上下文环境中,这个类可以保存和计算滚动位置的信息,比如可见的区域、滚动方向和偏移值等等。它还提供了一些方法,比如强制滚动到特定的位置、调整滚动位置、...
message=exception.message;final String fullMessage=exception.toString();if(message is String&&message!=fullMessage){if(fullMessage.length>message.length){final int position=fullMessage.lastIndexOf(message);if(position==fullMessage.length-message.length&&position>2&&fullMessage.substring(position-2,...
SliverFixedExtentList:类似于SliverList只是可以设置滚动的高度; SliverGrid:类似于我们之前使用过的GridView; SliverPadding:设置Sliver的内边距,因为可能要单独给Sliver设置内边距; SliverAppBar:添加一个AppBar,通常用来作为CustomScrollView的HeaderView; SliverSafeArea:设置内容显示在安全区域(比如不让齐刘海挡住我们的内...
extended_list_library package library for extended_list and waterfall_flow, it provides core classes. 11 2025-04-20T12:27:40Z ff_native_screenshot A Flutter plugin to take or listen screenshot(support Platform Views) for Android and iOS with native code. 11 2025-04-20T12:21:03Z flutter_...
)', [, , proid], )); batch.commit; } /// 将市下的所有区插入数据库 Future insertDistrictsInCity(List districts, String cityid) async { var batch = _db.batch; districts.forEach((d) => batch.rawInsert( 'insert or ignore into $_tableDistricts (district_id, district_name, weather_...
Catch Stopwatch with static analysis by @LongCatIsLooong in #140019 🎨: fix cupertionActionSheet design by @Anishishi in #134345 Revert "Dynamic view sizing" by @chingjun in #140165 fix reorderable_list drop animation by @yiiim in #139362 Cupertino text clear label by @MitchellGoodwin in...