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Merge pull request #1448 from apwilson/curve

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Add fast-out-slow-in Material-Design-style curve.
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Andrew Wilson 2015-10-01 17:19:38 -07:00
commit e9f27245b5
1 changed files with 7 additions and 4 deletions
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11
packages/flutter/lib/src/animation/curves.dart
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@ -150,16 +150,16 @@ class ElasticInOutCurve implements Curve {
/// A linear animation curve /// A linear animation curve
const Linear linear = const Linear(); const Linear linear = const Linear();
/// A cubic animation cuve that speeds up quickly and ends slowly /// A cubic animation curve that speeds up quickly and ends slowly
const Cubic ease = const Cubic(0.25, 0.1, 0.25, 1.0); const Cubic ease = const Cubic(0.25, 0.1, 0.25, 1.0);
/// A cubic animation cuve that starts slowly and ends quickly /// A cubic animation curve that starts slowly and ends quickly
const Cubic easeIn = const Cubic(0.42, 0.0, 1.0, 1.0); const Cubic easeIn = const Cubic(0.42, 0.0, 1.0, 1.0);
/// A cubic animation cuve that starts quickly and ends slowly /// A cubic animation curve that starts quickly and ends slowly
const Cubic easeOut = const Cubic(0.0, 0.0, 0.58, 1.0); const Cubic easeOut = const Cubic(0.0, 0.0, 0.58, 1.0);
/// A cubic animation cuve that starts slowly, speeds up, and then and ends slowly /// A cubic animation curve that starts slowly, speeds up, and then and ends slowly
const Cubic easeInOut = const Cubic(0.42, 0.0, 0.58, 1.0); const Cubic easeInOut = const Cubic(0.42, 0.0, 0.58, 1.0);
/// An oscillating curve that grows in magnitude /// An oscillating curve that grows in magnitude
@ -179,3 +179,6 @@ const ElasticOutCurve elasticOut = const ElasticOutCurve();
/// An oscillating curve that grows and then shrinks in magnitude while overshootings its bounds /// An oscillating curve that grows and then shrinks in magnitude while overshootings its bounds
const ElasticInOutCurve elasticInOut = const ElasticInOutCurve(); const ElasticInOutCurve elasticInOut = const ElasticInOutCurve();
/// A curve that starts quickly and eases into its final position. Over the course of the animation, the object spends more time near its final destination. As a result, the user isn’t left waiting for the animation to finish, and the negative effects of motion are minimized.
const Curve fastOutSlowIn = const Cubic(0.4, 0.0, 0.2, 1.0);