folaoluwafemi

import 'package:flutter/material.dart';

typedef ChangeNotifierSelector<T extends ChangeNotifier> = bool Function(
  T? previous,
  T next,
);

typedef ChangeNotifierBuilderCallback<T extends ChangeNotifier> = Widget
    Function(BuildContext context, T value);

craiglabenz

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

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override

Maadhav

class SABT extends StatefulWidget {
  final Widget child;
  const SABT({
    Key key,
    @required this.child,
  }) : super(key: key);
  @override
  _SABTState createState() {
    return new _SABTState();
  }

diegoveloper

import 'package:flutter/material.dart';

class FadeIndexedStack extends StatefulWidget {
  final int index;
  final List<Widget> children;
  final Duration duration;

  const FadeIndexedStack({
    Key key,
    this.index,

slightfoot

class ColumnBuilder extends StatelessWidget {
	final IndexedWidgetBuilder itemBuilder;
	final MainAxisAlignment mainAxisAlignment;
	final MainAxisSize mainAxisSize;
	final CrossAxisAlignment crossAxisAlignment;
	final TextDirection textDirection;
	final VerticalDirection verticalDirection;
	final int itemCount;