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Commit a21fe3ae authored by Selim Cinek's avatar Selim Cinek Committed by Automerger Merge Worker
Browse files

Merge "Added new interpolator spec to be used throughout all of our motion"... 

Merge "Added new interpolator spec to be used throughout all of our motion" into sc-v2-dev am: 96376719 am: 12e0953a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15920766

Change-Id: I6d987aedd8c2e80d6b76f37e55474232e7461ce1
parents b628c937 12e0953a

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);

    }

}