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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/widgets.dart';
import 'colors.dart';
/// The Flutter logo, in widget form. This widget respects the [IconTheme].
/// See also:
/// * [IconTheme], which provides ambient configuration for icons.
/// * [Icon], for showing icons the Material design icon library.
/// * [ImageIcon], for showing icons from [AssetImage]s or other [ImageProvider]s.
class FlutterLogo extends StatelessWidget {
/// Creates a widget that paints the Flutter logo.
/// The [size] defaults to the value given by the current [IconTheme].
const FlutterLogo({
Key key,
this.textColor = const Color(0xFF616161), = FlutterLogoStyle.markOnly,
this.duration = const Duration(milliseconds: 750),
this.curve = Curves.fastOutSlowIn,
}) : super(key: key);
/// The size of the logo in logical pixels.
/// The logo will be fit into a square this size.
/// Defaults to the current [IconTheme] size, if any. If there is no
/// [IconTheme], or it does not specify an explicit size, then it defaults to
/// 24.0.
final double size;
/// The color swatch to use to paint the logo, [] by default.
/// If for some reason the default colors are impractical, then one
/// of [Colors.amber], [], or [Colors.indigo] swatches can be used.
/// These are Flutter's secondary colors.
/// In extreme cases where none of those four color schemes will work,
/// [], [Colors.purple], or [Colors.cyan] swatches can be used.
/// These are Flutter's tertiary colors.
final MaterialColor colors;
/// The color used to paint the "Flutter" text on the logo, if [style] is
/// [FlutterLogoStyle.horizontal] or [FlutterLogoStyle.stacked]. The
/// appropriate color is `const Color(0xFF616161)` (a medium gray), against a
/// white background.
final Color textColor;
/// Whether and where to draw the "Flutter" text. By default, only the logo
/// itself is drawn.
final FlutterLogoStyle style;
/// The length of time for the animation if the [style], [colors], or
/// [textColor] properties are changed.
final Duration duration;
/// The curve for the logo animation if the [style], [colors], or [textColor]
/// change.
final Curve curve;
Widget build(BuildContext context) {
final IconThemeData iconTheme = IconTheme.of(context);
final double iconSize = size ?? iconTheme.size;
final MaterialColor logoColors = colors ??;
return new AnimatedContainer(
width: iconSize,
height: iconSize,
duration: duration,
curve: curve,
decoration: new FlutterLogoDecoration(
lightColor: logoColors.shade400,
darkColor: logoColors.shade900,
style: style,
textColor: textColor,