51 lines
1.8 KiB
Dart
51 lines
1.8 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/animation.dart';
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// The easing curves of the Material Library
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/// The standard easing curve in the Material 2 specification.
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///
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/// Elements that begin and end at rest use standard easing.
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/// They speed up quickly and slow down gradually, in order
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/// to emphasize the end of the transition.
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///
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/// See also:
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/// * <https://material.io/design/motion/speed.html#easing>
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@Deprecated(
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'Use Easing.legacy (M2) or Easing.standard (M3) instead. '
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'This curve is updated in M3. '
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'This feature was deprecated after v3.18.0-0.1.pre.',
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)
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const Curve standardEasing = Curves.fastOutSlowIn;
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/// The accelerate easing curve in the Material 2 specification.
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///
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/// Elements exiting a screen use acceleration easing,
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/// where they start at rest and end at peak velocity.
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///
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/// See also:
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/// * <https://material.io/design/motion/speed.html#easing>
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@Deprecated(
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'Use Easing.legacyAccelerate (M2) or Easing.standardAccelerate (M3) instead. '
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'This curve is updated in M3. '
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'This feature was deprecated after v3.18.0-0.1.pre.',
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)
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const Curve accelerateEasing = Cubic(0.4, 0.0, 1.0, 1.0);
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/// The decelerate easing curve in the Material 2 specification.
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///
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/// Incoming elements are animated using deceleration easing,
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/// which starts a transition at peak velocity (the fastest
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/// point of an element’s movement) and ends at rest.
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///
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/// See also:
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/// * <https://material.io/design/motion/speed.html#easing>
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@Deprecated(
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'Use Easing.legacyDecelerate (M2) or Easing.standardDecelerate (M3) instead. '
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'This curve is updated in M3. '
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'This feature was deprecated after v3.18.0-0.1.pre.',
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)
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const Curve decelerateEasing = Cubic(0.0, 0.0, 0.2, 1.0);
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