Merge "Added new interpolator spec to be used throughout all of our motion" into sc-v2-dev (96376719) · Commits · e / os / android_frameworks_base

packages/SystemUI/animation/src/com/android/systemui/animation/Interpolators.java

+108 −4

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package com.android.systemui.animation;

		import android.graphics.Path;
		import android.util.MathUtils;
		import android.view.animation.AccelerateDecelerateInterpolator;
		import android.view.animation.AccelerateInterpolator;
		@@ -29,7 +30,97 @@ import android.view.animation.PathInterpolator;
		* Utility class to receive interpolators from
		*/
		public class Interpolators {
		public static final Interpolator FAST_OUT_SLOW_IN = new PathInterpolator(0.4f, 0f, 0.2f, 1f);

		/*
		* ============================================================================================
		* Emphasized interpolators.
		* ============================================================================================
		*/

		/**
		* The default emphasized interpolator. Used for hero / emphasized movement of content.
		*/
		public static final Interpolator EMPHASIZED = createEmphasizedInterpolator();

		/**
		* The accelerated emphasized interpolator. Used for hero / emphasized movement of content that
		* is disappearing e.g. when moving off screen.
		*/
		public static final Interpolator EMPHASIZED_ACCELERATE = new PathInterpolator(
		0.3f, 0f, 0.8f, 0.15f);

		/**
		* The decelerating emphasized interpolator. Used for hero / emphasized movement of content that
		* is appearing e.g. when coming from off screen
		*/
		public static final Interpolator EMPHASIZED_DECELERATE = new PathInterpolator(
		0.05f, 0.7f, 0.1f, 1f);


		/*
		* ============================================================================================
		* Standard interpolators.
		* ============================================================================================
		*/

		/**
		* The standard interpolator that should be used on every normal animation
		*/
		public static final Interpolator STANDARD = new PathInterpolator(
		0.2f, 0f, 0f, 1f);

		/**
		* The standard accelerating interpolator that should be used on every regular movement of
		* content that is disappearing e.g. when moving off screen.
		*/
		public static final Interpolator STANDARD_ACCELERATE = new PathInterpolator(
		0.3f, 0f, 1f, 1f);

		/**
		* The standard decelerating interpolator that should be used on every regular movement of
		* content that is appearing e.g. when coming from off screen.
		*/
		public static final Interpolator STANDARD_DECELERATE = new PathInterpolator(
		0f, 0f, 0f, 1f);

		/*
		* ============================================================================================
		* Legacy
		* ============================================================================================
		*/

		/**
		* The default legacy interpolator as defined in Material 1. Also known as FAST_OUT_SLOW_IN.
		*/
		public static final Interpolator LEGACY = new PathInterpolator(0.4f, 0f, 0.2f, 1f);

		/**
		* The default legacy accelerating interpolator as defined in Material 1.
		* Also known as FAST_OUT_LINEAR_IN.
		*/
		public static final Interpolator LEGACY_ACCELERATE = new PathInterpolator(0.4f, 0f, 1f, 1f);

		/**
		* The default legacy decelerating interpolator as defined in Material 1.
		* Also known as LINEAR_OUT_SLOW_IN.
		*/
		public static final Interpolator LEGACY_DECELERATE = new PathInterpolator(0f, 0f, 0.2f, 1f);

		/**
		* Linear interpolator. Often used if the interpolator is for different properties who need
		* different interpolations.
		*/
		public static final Interpolator LINEAR = new LinearInterpolator();

		/*
		* ============================================================================================
		* Custom interpolators
		* ============================================================================================
		*/

		public static final Interpolator FAST_OUT_SLOW_IN = LEGACY;
		public static final Interpolator FAST_OUT_LINEAR_IN = LEGACY_ACCELERATE;
		public static final Interpolator LINEAR_OUT_SLOW_IN = LEGACY_DECELERATE;

		/**
		* Like {@link #FAST_OUT_SLOW_IN}, but used in case the animation is played in reverse (i.e. t
		@@ -37,12 +128,9 @@ public class Interpolators {
		*/
		public static final Interpolator FAST_OUT_SLOW_IN_REVERSE =
		new PathInterpolator(0.8f, 0f, 0.6f, 1f);
		public static final Interpolator FAST_OUT_LINEAR_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
		public static final Interpolator LINEAR_OUT_SLOW_IN = new PathInterpolator(0f, 0f, 0.2f, 1f);
		public static final Interpolator SLOW_OUT_LINEAR_IN = new PathInterpolator(0.8f, 0f, 1f, 1f);
		public static final Interpolator ALPHA_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
		public static final Interpolator ALPHA_OUT = new PathInterpolator(0f, 0f, 0.8f, 1f);
		public static final Interpolator LINEAR = new LinearInterpolator();
		public static final Interpolator ACCELERATE = new AccelerateInterpolator();
		public static final Interpolator ACCELERATE_DECELERATE = new AccelerateDecelerateInterpolator();
		public static final Interpolator DECELERATE_QUINT = new DecelerateInterpolator(2.5f);
		@@ -72,6 +160,12 @@ public class Interpolators {
		public static final Interpolator TOUCH_RESPONSE_REVERSE =
		new PathInterpolator(0.9f, 0f, 0.7f, 1f);

		/*
		* ============================================================================================
		* Functions / Utilities
		* ============================================================================================
		*/

		/**
		* Calculate the amount of overshoot using an exponential falloff function with desired
		* properties, where the overshoot smoothly transitions at the 1.0f boundary into the
		@@ -122,4 +216,14 @@ public class Interpolators {
		return (float) (1f - 0.5f * (1f - Math.cos(3.14159f * oneMinusFrac * oneMinusFrac)));
		}
		}

		// Create the default emphasized interpolator
		private static PathInterpolator createEmphasizedInterpolator() {
		Path path = new Path();
		// Doing the same as fast_out_extra_slow_in
		path.moveTo(0f, 0f);
		path.cubicTo(0.05f, 0f, 0.133333f, 0.06f, 0.166666f, 0.4f);
		path.cubicTo(0.208333f, 0.82f, 0.25f, 1f, 1f, 1f);
		return new PathInterpolator(path);
		}
		}