felangel

import 'dart:async';

import 'package:bloc/bloc.dart';
import 'package:rxdart/rxdart.dart';

enum CounterEvent { increment }

class CounterBloc extends Bloc<CounterEvent, int> {
  @override
  int get initialState => 0;

t-artikov

import 'dart:ui';

import 'package:flutter/material.dart';

Color mixColors(Color a, Color b, double t) {
  final w1 = (1 - t) * a.opacity;
  final w2 = t * b.opacity;
  final n = w1 + w2;
  final w = n > 0.000001 ? w2 / n : 0.5;

tomaszpolanski

import 'dart:math' as math;

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

class SliverFloatingHeader extends SingleChildRenderObjectWidget {
  const SliverFloatingHeader({
    Key key,
    Widget child,
  }) : super(key: key, child: child);