HansMuller

import 'package:flutter/material.dart';

class TitleBar extends SliverPersistentHeaderDelegate {
  const TitleBar(this.height, this.topPadding);

  final double height;
  final double topPadding;

  @override
  double get minExtent => height + topPadding;

HansMuller

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';

class _CacheHeight extends SingleChildRenderObjectWidget {
  const _CacheHeight({
    super.key,
    super.child,
    required this.heights,
    required this.index,
  });

HansMuller

import 'package:flutter/material.dart';

class SliverListDemo extends StatelessWidget {
  const SliverListDemo({ super.key });

  @override
  Widget build(BuildContext context) {
    final List<int> itemHeights = <int>[1, 3, 5, 1, 3, 2, 4, 2, 1, 4, 1]; // # of calendars per item

    return Scaffold(

HansMuller

import 'package:flutter/material.dart';

class CalendarSlivers extends StatelessWidget {
  const CalendarSlivers({
    super.key,
    required this.startColor,
    required this.endColor,
  });

  final Color startColor;

HansMuller

import 'package:flutter/material.dart';

const List<double> itemHeights = <double>[
  600, 300, 800, 40, 400, 50, 80, 60, 50, 40, 40, 300, 400, 50, 800, 200, 30,
  500, 80, 700, 40, 160, 50, 400, 80, 200, 500, 100, 80, 40, 200, 60, 600,
];

class ItemSlivers extends StatelessWidget {
  const ItemSlivers({
    super.key,

HansMuller

// This version of the SliverAppBar iOS large title snap demo is similar to
// snap.dart but uses a pair of SliverPersistentHeaders for the title
// and large title. This makes the layout simpler and obviates the ClipBox
// widget.
//
// Problems:
// - Same as snap.dart per the ScrollController and desktop.
// - To package this approach up as a single Sliver, SliverMainAxisGroup is needed.
// - It seems like the stretchConfiguration property should be on LargeTitleBar, since that's
//   the one we want to stretch (plus scaling upon stretching...)

HansMuller

import 'package:flutter/material.dart';

// This widget clips its bottom-aligned child. When the ClipBox's
// height gets continually smaller, the child appears to be
// moving upwards - the top of the is increasingly clipped while
// the bottom remains visible.
class ClipBox extends StatelessWidget {
  const ClipBox({ super.key, required this.child });

  final Widget child;

HansMuller

// https://gist.github.com/HansMuller/dab66f5d34225ad8499ad285e69b6160

// The goal here is for the 'ClipBoxDemo' text widget to appear to scroll upwards
// and be clipped by its Container, as the height of its Container is reduced.

import 'package:flutter/material.dart';

class ClipBoxDemo extends StatelessWidget {
  const ClipBoxDemo({ super.key });

HansMuller

// https://github.com/flutter/uxr/discussions/93

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart' show timeDilation;


class Item {
  const Item(this.title, this.backgroundColor, this.foregroundColor);

HansMuller

import 'package:flutter/widgets.dart';

class Application with WidgetsBindingObserver {
  final Widget home;
  final Function onLaunch;
  final Function onTerminate;

  Application({
    @required this.home,
    this.onLaunch,