当使用ListView.builder()使用ExpansionTile()延迟构建列表中的项目时,我有一个奇怪的行为,我无法通过从打开的扩展磁贴中抓取一个项目来滚动整个列表。如果将bool标志swapFailureTrigger设置为true,则不会对打开的扩展块内容使用ListView.builder(),而只是将其全部放入内存中。import 'package:flutter/material.dart';
// If TRUE, scrolling works well when
为什么我的ListView不显示预期的瓷砖?DepartureCell extends StatelessWidget {
Widget build(BuildContext context) {flutter: Viewports expand in the scrolling direction to fill their container.In this case, aheight of the
我正在尝试将Stack添加到SafeArea中的ListView中。但是,有一个运行时异常,如下所示: BoxConstraints forces an infinite height.I/flutter (18717): These invalid constraints were provided to RenderConstrainedBox's layout() function:
I/flutter (18717): RenderConstrainedBox.p