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@craiglabenz
craiglabenz / chat_message_render_box.dart
Last active April 10, 2025 10:34
Demonstrates a custom RenderObject that draws chat messages like WhatsApp, where the `sentAt` timestamp is tucked into the last line if it fits
import 'dart:math';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
@slightfoot
slightfoot / transitions_fun.dart
Created January 8, 2020 21:31
Fun with Route Animations - by Simon Lightfoot - #HumpDayQandA - 8th Janurary 2020
// MIT License
//
// Copyright (c) 2019 Simon Lightfoot
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
@slightfoot
slightfoot / dropdown_popup.dart
Last active August 30, 2021 06:33
Custom Dropdown Popup Menu Example - Custom Enum, Theming, Extending Existing API, Animations, Transitions, Routes, Custom shadows, borders and painting. Based on https://dribbble.com/shots/2369431-Daily-UI-027-Dropdown
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:vector_math/vector_math_64.dart' show radians;
void main() => runApp(ExampleApp());
class ExampleItem {
static const Pineapples = ExampleItem._('Pineapples');
static const Watermelons = ExampleItem._('Watermelons');
static const StarFruit = ExampleItem._('Star Fruit');
@blasten
blasten / group-intervals.js
Created January 6, 2015 05:57
Group all overlapping intervals.
// Group all overlaping intervals
// * * * * * * *
// This is an approach to a problem the engineers at Google Calandar/ Outlook probably faced.
// You have events that may overlap and you want to display them in such a way that
// they don't overlap with each other. One approach is to distribute them into columns.
// Each column has events that don't overlap with each other.
// Cost: O(n*log n) if the interval aren't sorted by the starting time,
// O(n) otherwise.
// Sample run: groupOverlapingIntervals([ [2, 5], [5, 6],[3, 4] ])