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Commit 8d725767 authored by Johannes Gallmann's avatar Johannes Gallmann
Browse files

Use custom interpolator for predictive back system animations 

Bug: 332512902
Flag: ACONFIG com.android.window.flags.predictive_back_system_anims TRUNKFOOD
Test: Manual, i.e. analysing screenrecordings and verify that there are no more animation jumps at the start/end of the back animation
Change-Id: I1a95b4c5e3ba393798254f2c44911d7b80ae1fc1
parent 5f430310

animationlib/src/com/android/app/animation/Interpolators.java

+9 −0
Original line number Diff line number Diff line
@@ -258,6 +258,15 @@ public class Interpolators { 
        }

    };



    /**

     * Use this interpolator for animating progress values coming from the back callback to get

     * the predictive-back-typical decelerate motion.

     *

     * This interpolator is similar to {@link Interpolators#STANDARD_DECELERATE} but has a slight

     * acceleration phase at the start.

     */

    public static final Interpolator BACK_GESTURE = new PathInterpolator(0.1f, 0.1f, 0f, 1f);



    private static final float FAST_FLING_PX_MS = 10;



    /*

animationlib/src/com/android/app/animation/InterpolatorsAndroidX.java

+9 −0
Original line number Diff line number Diff line
@@ -264,6 +264,15 @@ public class InterpolatorsAndroidX { 
        }

    };



    /**

     * Use this interpolator for animating progress values coming from the back callback to get

     * the predictive-back-typical decelerate motion.

     *

     * This interpolator is similar to {@link Interpolators#STANDARD_DECELERATE} but has a slight

     * acceleration phase at the start.

     */

    public static final Interpolator BACK_GESTURE = new PathInterpolator(0.1f, 0.1f, 0f, 1f);



    private static final float FAST_FLING_PX_MS = 10;



    /*