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Commit e754bad9 authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Android (Google) Code Review
Browse files

Merge "Revert "Add spring to shelf for home <-> overview <-> all apps state... 

Merge "Revert "Add spring to shelf for home <-> overview <-> all apps state transitions."" into ub-launcher3-master
parents 2c3089d5 2bdac8f7

quickstep/src/com/android/quickstep/ActivityControlHelper.java

+4 −3
Original line number Original line Diff line number Diff line
@@ -21,6 +21,7 @@ import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY; 
import static com.android.launcher3.LauncherState.BACKGROUND_APP;

import static com.android.launcher3.LauncherState.BACKGROUND_APP;

import static com.android.launcher3.LauncherState.FAST_OVERVIEW;

import static com.android.launcher3.LauncherState.FAST_OVERVIEW;

import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.allapps.AllAppsTransitionController.ALL_APPS_PROGRESS;

import static com.android.launcher3.anim.Interpolators.LINEAR;

import static com.android.launcher3.anim.Interpolators.LINEAR;

import static com.android.launcher3.states.RotationHelper.REQUEST_LOCK;

import static com.android.launcher3.states.RotationHelper.REQUEST_LOCK;

import static com.android.quickstep.TouchConsumer.INTERACTION_NORMAL;

import static com.android.quickstep.TouchConsumer.INTERACTION_NORMAL;
@@ -52,9 +53,9 @@ import com.android.launcher3.LauncherInitListener; 
import com.android.launcher3.LauncherState;

import com.android.launcher3.LauncherState;

import com.android.launcher3.R;

import com.android.launcher3.R;

import com.android.launcher3.TestProtocol;

import com.android.launcher3.TestProtocol;

import com.android.launcher3.allapps.AllAppsTransitionController;

import com.android.launcher3.allapps.DiscoveryBounce;

import com.android.launcher3.allapps.DiscoveryBounce;

import com.android.launcher3.anim.AnimatorPlaybackController;

import com.android.launcher3.anim.AnimatorPlaybackController;

import com.android.launcher3.anim.SpringObjectAnimator;

import com.android.launcher3.compat.AccessibilityManagerCompat;

import com.android.launcher3.compat.AccessibilityManagerCompat;

import com.android.launcher3.config.FeatureFlags;

import com.android.launcher3.config.FeatureFlags;

import com.android.launcher3.dragndrop.DragLayer;

import com.android.launcher3.dragndrop.DragLayer;
@@ -294,8 +295,8 @@ public interface ActivityControlHelper<T extends BaseDraggingActivity> { 




            AnimatorSet anim = new AnimatorSet();

            AnimatorSet anim = new AnimatorSet();

            if (!activity.getDeviceProfile().isVerticalBarLayout()) {

            if (!activity.getDeviceProfile().isVerticalBarLayout()) {

                Animator shiftAnim = new SpringObjectAnimator(activity.getAllAppsController(),

                AllAppsTransitionController controller = activity.getAllAppsController();

                        activity.getAllAppsController().getShiftRange(),

                ObjectAnimator shiftAnim = ObjectAnimator.ofFloat(controller, ALL_APPS_PROGRESS,

                        fromState.getVerticalProgress(activity),

                        fromState.getVerticalProgress(activity),

                        endState.getVerticalProgress(activity));

                        endState.getVerticalProgress(activity));

                shiftAnim.setInterpolator(LINEAR);

                shiftAnim.setInterpolator(LINEAR);

quickstep/src/com/android/quickstep/LongSwipeHelper.java

+3 −8
Original line number Original line Diff line number Diff line
@@ -19,7 +19,6 @@ import static com.android.launcher3.LauncherAnimUtils.MIN_PROGRESS_TO_ALL_APPS; 
import static com.android.launcher3.LauncherState.ALL_APPS;

import static com.android.launcher3.LauncherState.ALL_APPS;

import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.anim.Interpolators.DEACCEL;

import static com.android.launcher3.anim.Interpolators.DEACCEL;

import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;

import static com.android.quickstep.WindowTransformSwipeHandler.MAX_SWIPE_DURATION;

import static com.android.quickstep.WindowTransformSwipeHandler.MAX_SWIPE_DURATION;

import static com.android.quickstep.WindowTransformSwipeHandler.MIN_OVERSHOOT_DURATION;

import static com.android.quickstep.WindowTransformSwipeHandler.MIN_OVERSHOOT_DURATION;
@@ -42,6 +41,7 @@ import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch; 
import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;

import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;

import com.android.launcher3.util.FlingBlockCheck;

import com.android.launcher3.util.FlingBlockCheck;

import com.android.quickstep.views.RecentsView;

import com.android.quickstep.views.RecentsView;

import com.android.systemui.shared.system.RemoteAnimationTargetCompat;





/**

/**

 * Utility class to handle long swipe from an app.

 * Utility class to handle long swipe from an app.
@@ -113,7 +113,7 @@ public class LongSwipeHelper { 
                    * MAX_SWIPE_DURATION * SWIPE_DURATION_MULTIPLIER));

                    * MAX_SWIPE_DURATION * SWIPE_DURATION_MULTIPLIER));

            duration = Math.min(MAX_SWIPE_DURATION, expectedDuration);

            duration = Math.min(MAX_SWIPE_DURATION, expectedDuration);





            if (blockedFling && !toAllApps && !QUICKSTEP_SPRINGS.get()) {

            if (blockedFling && !toAllApps) {

                Interpolators.OvershootParams overshoot = new OvershootParams(currentFraction,

                Interpolators.OvershootParams overshoot = new OvershootParams(currentFraction,

                        currentFraction, endProgress, velocityPxPerMs, (int) mMaxSwipeDistance);

                        currentFraction, endProgress, velocityPxPerMs, (int) mMaxSwipeDistance);

                duration = (overshoot.duration + duration);

                duration = (overshoot.duration + duration);
@@ -145,13 +145,8 @@ public class LongSwipeHelper { 
        ValueAnimator animator = mAnimator.getAnimationPlayer();

        ValueAnimator animator = mAnimator.getAnimationPlayer();

        animator.setDuration(duration).setInterpolator(interpolator);

        animator.setDuration(duration).setInterpolator(interpolator);

        animator.setFloatValues(currentFraction, endProgress);

        animator.setFloatValues(currentFraction, endProgress);



        if (QUICKSTEP_SPRINGS.get()) {

            mAnimator.dispatchOnStartWithVelocity(endProgress, velocityPxPerMs);

        } else {

        animator.start();

        animator.start();

    }

    }

    }





    private void onSwipeAnimationComplete(boolean toAllApps, boolean isFling, Runnable callback) {

    private void onSwipeAnimationComplete(boolean toAllApps, boolean isFling, Runnable callback) {

        RecentsView rv = mLauncher.getOverviewPanel();

        RecentsView rv = mLauncher.getOverviewPanel();

quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java

+7 −14
Original line number Original line Diff line number Diff line
@@ -22,7 +22,6 @@ import static com.android.launcher3.Utilities.postAsyncCallback; 
import static com.android.launcher3.anim.Interpolators.DEACCEL;

import static com.android.launcher3.anim.Interpolators.DEACCEL;

import static com.android.launcher3.anim.Interpolators.LINEAR;

import static com.android.launcher3.anim.Interpolators.LINEAR;

import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;

import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;

import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;

import static com.android.quickstep.QuickScrubController.QUICK_SCRUB_FROM_APP_START_DURATION;

import static com.android.quickstep.QuickScrubController.QUICK_SCRUB_FROM_APP_START_DURATION;

import static com.android.quickstep.QuickScrubController.QUICK_SWITCH_FROM_APP_START_DURATION;

import static com.android.quickstep.QuickScrubController.QUICK_SWITCH_FROM_APP_START_DURATION;

import static com.android.quickstep.TouchConsumer.INTERACTION_NORMAL;

import static com.android.quickstep.TouchConsumer.INTERACTION_NORMAL;
@@ -789,8 +788,7 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> { 
            mRecentsAnimationWrapper.enableTouchProxy();

            mRecentsAnimationWrapper.enableTouchProxy();

        }

        }





        animateToProgress(startShift, endShift, duration, interpolator, goingToHome,

        animateToProgress(startShift, endShift, duration, interpolator, goingToHome);

                velocityPxPerMs);

    }

    }





    private void doLogGesture(boolean toLauncher) {

    private void doLogGesture(boolean toLauncher) {
@@ -815,14 +813,14 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> { 
    }

    }





    /** Animates to the given progress, where 0 is the current app and 1 is overview. */

    /** Animates to the given progress, where 0 is the current app and 1 is overview. */

    private void animateToProgress(float start, float end, long duration, Interpolator interpolator,

    private void animateToProgress(float start, float end, long duration,

            boolean goingToHome, float velocityPxPerMs) {

            Interpolator interpolator, boolean goingToHome) {

        mRecentsAnimationWrapper.runOnInit(() -> animateToProgressInternal(start, end, duration,

        mRecentsAnimationWrapper.runOnInit(() -> animateToProgressInternal(start, end, duration,

                interpolator, goingToHome, velocityPxPerMs));

                interpolator, goingToHome));

    }

    }





    private void animateToProgressInternal(float start, float end, long duration,

    private void animateToProgressInternal(float start, float end, long duration,

            Interpolator interpolator, boolean goingToHome, float velocityPxPerMs) {

            Interpolator interpolator, boolean goingToHome) {

        mIsGoingToHome = goingToHome;

        mIsGoingToHome = goingToHome;

        ObjectAnimator anim = mCurrentShift.animateToValue(start, end).setDuration(duration);

        ObjectAnimator anim = mCurrentShift.animateToValue(start, end).setDuration(duration);

        anim.setInterpolator(interpolator);

        anim.setInterpolator(interpolator);
@@ -856,13 +854,8 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> { 
                mLauncherTransitionController.dispatchSetInterpolator(Interpolators.mapToProgress(

                mLauncherTransitionController.dispatchSetInterpolator(Interpolators.mapToProgress(

                        interpolator, adjustedStart, end));

                        interpolator, adjustedStart, end));

                mLauncherTransitionController.getAnimationPlayer().setDuration(adjustedDuration);

                mLauncherTransitionController.getAnimationPlayer().setDuration(adjustedDuration);



                if (QUICKSTEP_SPRINGS.get()) {

                    mLauncherTransitionController.dispatchOnStartWithVelocity(end, velocityPxPerMs);

                } else {

                mLauncherTransitionController.getAnimationPlayer().start();

                mLauncherTransitionController.getAnimationPlayer().start();

            }

            }

            }

        });

        });

    }

    }
@@ -1006,7 +999,7 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> { 
        long duration = FeatureFlags.QUICK_SWITCH.get()

        long duration = FeatureFlags.QUICK_SWITCH.get()

                ? QUICK_SWITCH_FROM_APP_START_DURATION

                ? QUICK_SWITCH_FROM_APP_START_DURATION

                : QUICK_SCRUB_FROM_APP_START_DURATION;

                : QUICK_SCRUB_FROM_APP_START_DURATION;

        animateToProgress(mCurrentShift.value, 1f, duration, LINEAR, true /* goingToHome */, 1f);

        animateToProgress(mCurrentShift.value, 1f, duration, LINEAR, true /* goingToHome */);

    }

    }





    private void onQuickScrubStartUi() {

    private void onQuickScrubStartUi() {

src/com/android/launcher3/allapps/AllAppsTransitionController.java

+5 −54
Original line number Original line Diff line number Diff line 
package com.android.launcher3.allapps;

package com.android.launcher3.allapps;





import static com.android.launcher3.LauncherState.ALL_APPS_CONTENT;

import static com.android.launcher3.LauncherState.ALL_APPS_CONTENT;

import static com.android.launcher3.LauncherState.ALL_APPS_HEADER;

import static com.android.launcher3.LauncherState.ALL_APPS_HEADER_EXTRA;

import static com.android.launcher3.LauncherState.ALL_APPS_HEADER_EXTRA;

import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.LauncherState.VERTICAL_SWIPE_INDICATOR;

import static com.android.launcher3.LauncherState.VERTICAL_SWIPE_INDICATOR;
@@ -14,7 +15,9 @@ import static com.android.launcher3.util.SystemUiController.UI_STATE_ALL_APPS; 




import android.animation.Animator;

import android.animation.Animator;

import android.animation.AnimatorListenerAdapter;

import android.animation.AnimatorListenerAdapter;

import android.animation.ObjectAnimator;

import android.util.Property;

import android.util.Property;

import android.view.View;

import android.view.animation.Interpolator;

import android.view.animation.Interpolator;





import com.android.launcher3.DeviceProfile;

import com.android.launcher3.DeviceProfile;
@@ -26,15 +29,10 @@ import com.android.launcher3.LauncherStateManager.StateHandler; 
import com.android.launcher3.R;

import com.android.launcher3.R;

import com.android.launcher3.anim.AnimationSuccessListener;

import com.android.launcher3.anim.AnimationSuccessListener;

import com.android.launcher3.anim.AnimatorSetBuilder;

import com.android.launcher3.anim.AnimatorSetBuilder;

import com.android.launcher3.anim.SpringObjectAnimator;

import com.android.launcher3.anim.PropertySetter;

import com.android.launcher3.anim.PropertySetter;

import com.android.launcher3.anim.SpringObjectAnimator.SpringProperty;

import com.android.launcher3.util.Themes;

import com.android.launcher3.util.Themes;

import com.android.launcher3.views.ScrimView;

import com.android.launcher3.views.ScrimView;





import androidx.dynamicanimation.animation.FloatPropertyCompat;

import androidx.dynamicanimation.animation.SpringAnimation;



/**

/**

 * Handles AllApps view transition.

 * Handles AllApps view transition.

 * 1) Slides all apps view using direct manipulation

 * 1) Slides all apps view using direct manipulation
@@ -61,53 +59,6 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil 
        }

        }

    };

    };





    public static final FloatPropertyCompat<AllAppsTransitionController> ALL_APPS_PROGRESS_SPRING

            = new FloatPropertyCompat<AllAppsTransitionController>("allAppsProgressSpring") {

        @Override

        public float getValue(AllAppsTransitionController controller) {

            return controller.mProgress;

        }



        @Override

        public void setValue(AllAppsTransitionController controller, float progress) {

            controller.setProgress(progress);

        }

    };



    /**

     * Property that either sets the progress directly or animates the progress via a spring.

     */

    public static class AllAppsSpringProperty extends

            SpringProperty<AllAppsTransitionController, Float> {



        SpringAnimation mSpring;

        boolean useSpring = false;



        public AllAppsSpringProperty(SpringAnimation spring) {

            super(Float.class, "allAppsSpringProperty");

            mSpring = spring;

        }



        @Override

        public Float get(AllAppsTransitionController controller) {

            return controller.getProgress();

        }



        @Override

        public void set(AllAppsTransitionController controller, Float progress) {

            if (useSpring) {

                mSpring.animateToFinalPosition(progress);

            } else {

                controller.setProgress(progress);

            }

        }



        @Override

        public void switchToSpring() {

            useSpring = true;

        }

    }



    private AllAppsContainerView mAppsView;

    private AllAppsContainerView mAppsView;

    private ScrimView mScrimView;

    private ScrimView mScrimView;
@@ -223,8 +174,8 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil 
        Interpolator interpolator = config.userControlled ? LINEAR : toState == OVERVIEW

        Interpolator interpolator = config.userControlled ? LINEAR : toState == OVERVIEW

                ? builder.getInterpolator(ANIM_OVERVIEW_SCALE, FAST_OUT_SLOW_IN)

                ? builder.getInterpolator(ANIM_OVERVIEW_SCALE, FAST_OUT_SLOW_IN)

                : FAST_OUT_SLOW_IN;

                : FAST_OUT_SLOW_IN;

        Animator anim = new SpringObjectAnimator(this, 1f / mShiftRange, mProgress,

        ObjectAnimator anim =

                targetProgress);

                ObjectAnimator.ofFloat(this, ALL_APPS_PROGRESS, mProgress, targetProgress);

        anim.setDuration(config.duration);

        anim.setDuration(config.duration);

        anim.setInterpolator(builder.getInterpolator(ANIM_VERTICAL_PROGRESS, interpolator));

        anim.setInterpolator(builder.getInterpolator(ANIM_VERTICAL_PROGRESS, interpolator));

        anim.addListener(getProgressAnimatorListener());

        anim.addListener(getProgressAnimatorListener());

src/com/android/launcher3/anim/AnimatorPlaybackController.java

+4 −66
Original line number Original line Diff line number Diff line
@@ -16,7 +16,6 @@ 
package com.android.launcher3.anim;

package com.android.launcher3.anim;





import static com.android.launcher3.anim.Interpolators.LINEAR;

import static com.android.launcher3.anim.Interpolators.LINEAR;

import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;





import android.animation.Animator;

import android.animation.Animator;

import android.animation.Animator.AnimatorListener;

import android.animation.Animator.AnimatorListener;
@@ -24,16 +23,10 @@ import android.animation.AnimatorListenerAdapter; 
import android.animation.AnimatorSet;

import android.animation.AnimatorSet;

import android.animation.TimeInterpolator;

import android.animation.TimeInterpolator;

import android.animation.ValueAnimator;

import android.animation.ValueAnimator;

import android.util.Log;





import java.util.ArrayList;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Collections;

import java.util.HashSet;

import java.util.List;

import java.util.List;

import java.util.Set;



import androidx.dynamicanimation.animation.DynamicAnimation;

import androidx.dynamicanimation.animation.SpringAnimation;





/**

/**

 * Helper class to control the playback of an {@link AnimatorSet}, with custom interpolators

 * Helper class to control the playback of an {@link AnimatorSet}, with custom interpolators
@@ -44,9 +37,6 @@ import androidx.dynamicanimation.animation.SpringAnimation; 
 */

 */

public abstract class AnimatorPlaybackController implements ValueAnimator.AnimatorUpdateListener {

public abstract class AnimatorPlaybackController implements ValueAnimator.AnimatorUpdateListener {





    private static final String TAG = "AnimatorPlaybackCtrler";

    private static boolean DEBUG = false;



    public static AnimatorPlaybackController wrap(AnimatorSet anim, long duration) {

    public static AnimatorPlaybackController wrap(AnimatorSet anim, long duration) {

        return wrap(anim, duration, null);

        return wrap(anim, duration, null);

    }

    }
@@ -70,7 +60,6 @@ public abstract class AnimatorPlaybackController implements ValueAnimator.Animat 
    private final long mDuration;

    private final long mDuration;





    protected final AnimatorSet mAnim;

    protected final AnimatorSet mAnim;

    private Set<SpringAnimation> mSprings;





    protected float mCurrentFraction;

    protected float mCurrentFraction;

    private Runnable mEndAction;

    private Runnable mEndAction;
@@ -78,9 +67,6 @@ public abstract class AnimatorPlaybackController implements ValueAnimator.Animat 
    protected boolean mTargetCancelled = false;

    protected boolean mTargetCancelled = false;

    protected Runnable mOnCancelRunnable;

    protected Runnable mOnCancelRunnable;





    private OnAnimationEndDispatcher mEndListener;

    private DynamicAnimation.OnAnimationEndListener mSpringEndListener;



    protected AnimatorPlaybackController(AnimatorSet anim, long duration,

    protected AnimatorPlaybackController(AnimatorSet anim, long duration,

            Runnable onCancelRunnable) {

            Runnable onCancelRunnable) {

        mAnim = anim;

        mAnim = anim;
@@ -89,8 +75,7 @@ public abstract class AnimatorPlaybackController implements ValueAnimator.Animat 




        mAnimationPlayer = ValueAnimator.ofFloat(0, 1);

        mAnimationPlayer = ValueAnimator.ofFloat(0, 1);

        mAnimationPlayer.setInterpolator(LINEAR);

        mAnimationPlayer.setInterpolator(LINEAR);

        mEndListener = new OnAnimationEndDispatcher();

        mAnimationPlayer.addListener(new OnAnimationEndDispatcher());

        mAnimationPlayer.addListener(mEndListener);

        mAnimationPlayer.addUpdateListener(this);

        mAnimationPlayer.addUpdateListener(this);





        mAnim.addListener(new AnimatorListenerAdapter() {

        mAnim.addListener(new AnimatorListenerAdapter() {
@@ -114,15 +99,6 @@ public abstract class AnimatorPlaybackController implements ValueAnimator.Animat 
                mTargetCancelled = false;

                mTargetCancelled = false;

            }

            }

        });

        });



        mSprings = new HashSet<>();

        mSpringEndListener = (animation, canceled, value, velocity1) -> {

            if (canceled) {

                mEndListener.onAnimationCancel(mAnimationPlayer);

            } else {

                mEndListener.onAnimationEnd(mAnimationPlayer);

            }

        };

    }

    }





    public AnimatorSet getTarget() {

    public AnimatorSet getTarget() {
@@ -204,29 +180,6 @@ public abstract class AnimatorPlaybackController implements ValueAnimator.Animat 
        }

        }

    }

    }





    /**

     * Starts playback and sets the spring.

     */

    public void dispatchOnStartWithVelocity(float end, float velocity) {

        if (!QUICKSTEP_SPRINGS.get()) {

            dispatchOnStart();

            return;

        }



        if (DEBUG) Log.d(TAG, "dispatchOnStartWithVelocity#end=" + end + ", velocity=" + velocity);



        for (Animator a : mAnim.getChildAnimations()) {

            if (a instanceof SpringObjectAnimator) {

                if (DEBUG) Log.d(TAG, "Found springAnimator=" + a);

                SpringObjectAnimator springAnimator = (SpringObjectAnimator) a;

                mSprings.add(springAnimator.getSpring());

                springAnimator.startSpring(end, velocity, mSpringEndListener);

            }

        }



        dispatchOnStart();

    }



    public void dispatchOnStart() {

    public void dispatchOnStart() {

        dispatchOnStartRecursively(mAnim);

        dispatchOnStartRecursively(mAnim);

    }

    }
@@ -329,18 +282,6 @@ public abstract class AnimatorPlaybackController implements ValueAnimator.Animat 
        }

        }

    }

    }





    private boolean isAnySpringRunning() {

        for (SpringAnimation spring : mSprings) {

            if (spring.isRunning()) {

                return true;

            }

        }

        return false;

    }



    /**

     * Only dispatches the on end actions once the animator and all springs have completed running.

     */

    private class OnAnimationEndDispatcher extends AnimationSuccessListener {

    private class OnAnimationEndDispatcher extends AnimationSuccessListener {





        @Override

        @Override
@@ -350,14 +291,11 @@ public abstract class AnimatorPlaybackController implements ValueAnimator.Animat 




        @Override

        @Override

        public void onAnimationSuccess(Animator animator) {

        public void onAnimationSuccess(Animator animator) {

            // We wait for the spring (if any) to finish running before completing the end callback.

            if (mSprings.isEmpty() || !isAnySpringRunning()) {

            dispatchOnEndRecursively(mAnim);

            dispatchOnEndRecursively(mAnim);

            if (mEndAction != null) {

            if (mEndAction != null) {

                mEndAction.run();

                mEndAction.run();

            }

            }

        }

        }

        }





        private void dispatchOnEndRecursively(Animator animator) {

        private void dispatchOnEndRecursively(Animator animator) {

            for (AnimatorListener l : nonNullList(animator.getListeners())) {

            for (AnimatorListener l : nonNullList(animator.getListeners())) {