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Commit cf5aea05 authored by Tony Wickham's avatar Tony Wickham Committed by Automerger Merge Worker
Browse files

Update overview from home transitions am: 03a4a0cd 

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/12184426

Change-Id: Iac33ad0742264a97e754a1cc4336ed3ab727944a
parents 2fe0d5f7 03a4a0cd

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java

+7 −4
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ package com.android.launcher3.uioverrides; 


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

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

import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_ACTIONS_FADE;

import static com.android.quickstep.views.RecentsView.CONTENT_ALPHA;

import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;

import static com.android.quickstep.views.RecentsView.TASK_MODALNESS;
@@ -57,7 +58,7 @@ public final class RecentsViewStateController extends 
            mRecentsView.updateEmptyMessage();

            mRecentsView.resetTaskVisuals();

        }

        setAlphas(PropertySetter.NO_ANIM_PROPERTY_SETTER, state);

        setAlphas(PropertySetter.NO_ANIM_PROPERTY_SETTER, new StateAnimationConfig(), state);

        mRecentsView.setFullscreenProgress(state.getOverviewFullscreenProgress());

    }
@@ -75,17 +76,19 @@ public final class RecentsViewStateController extends 
                    AnimationSuccessListener.forRunnable(mRecentsView::resetTaskVisuals));

        }



        setAlphas(builder, toState);

        setAlphas(builder, config, toState);

        builder.setFloat(mRecentsView, FULLSCREEN_PROGRESS,

                toState.getOverviewFullscreenProgress(), LINEAR);

    }



    private void setAlphas(PropertySetter propertySetter, LauncherState state) {

    private void setAlphas(PropertySetter propertySetter, StateAnimationConfig config,

            LauncherState state) {

        float buttonAlpha = (state.getVisibleElements(mLauncher) & OVERVIEW_BUTTONS) != 0 ? 1 : 0;

        propertySetter.setFloat(mRecentsView.getClearAllButton(), ClearAllButton.VISIBILITY_ALPHA,

                buttonAlpha, LINEAR);

        propertySetter.setFloat(mLauncher.getActionsView().getVisibilityAlpha(),

                MultiValueAlpha.VALUE, buttonAlpha, LINEAR);

                MultiValueAlpha.VALUE, buttonAlpha, config.getInterpolator(

                        ANIM_OVERVIEW_ACTIONS_FADE, LINEAR));

    }



    @Override

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java

+11 −4
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ import static com.android.launcher3.LauncherState.OVERVIEW; 
import static com.android.launcher3.LauncherState.OVERVIEW_PEEK;

import static com.android.launcher3.WorkspaceStateTransitionAnimation.getSpringScaleAnimator;

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

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

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

import static com.android.launcher3.anim.Interpolators.DEACCEL_1_7;

import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
@@ -163,10 +164,15 @@ public class QuickstepAtomicAnimationFactory extends 
            config.setInterpolator(ANIM_WORKSPACE_FADE, ACCEL);

            config.setInterpolator(ANIM_ALL_APPS_FADE, ACCEL);

            config.setInterpolator(ANIM_OVERVIEW_SCALE, clampToProgress(ACCEL, 0, 0.9f));

            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, ACCEL);

            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, ACCEL_DEACCEL);



            if (SysUINavigationMode.getMode(mActivity) == NO_BUTTON) {

                config.setInterpolator(ANIM_OVERVIEW_FADE, FINAL_FRAME);

            } else {

                config.setInterpolator(ANIM_OVERVIEW_FADE, DEACCEL_1_7);

            Workspace workspace = mActivity.getWorkspace();

            }



            Workspace workspace = mActivity.getWorkspace();

            // Start from a higher workspace scale, but only if we're invisible so we don't jump.

            boolean isWorkspaceVisible = workspace.getVisibility() == VISIBLE;

            if (isWorkspaceVisible) {
@@ -206,8 +212,10 @@ public class QuickstepAtomicAnimationFactory extends 
                config.setInterpolator(ANIM_WORKSPACE_SCALE,

                        fromState == NORMAL ? ACCEL : OVERSHOOT_1_2);

                config.setInterpolator(ANIM_WORKSPACE_TRANSLATE, ACCEL);

                config.setInterpolator(ANIM_OVERVIEW_FADE, INSTANT);

            } else {

                config.setInterpolator(ANIM_WORKSPACE_SCALE, OVERSHOOT_1_2);

                config.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);



                // Scale up the recents, if it is not coming from the side

                RecentsView overview = mActivity.getOverviewPanel();
@@ -225,7 +233,6 @@ public class QuickstepAtomicAnimationFactory extends 
                    : OVERSHOOT_1_7;

            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, translationInterpolator);

            config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, translationInterpolator);

            config.setInterpolator(ANIM_OVERVIEW_FADE, OVERSHOOT_1_2);

        } else if (fromState == HINT_STATE && toState == NORMAL) {

            config.setInterpolator(ANIM_DEPTH, DEACCEL_3);

            if (mHintToNormalDuration == -1) {

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java

+20 −5
Original line number Diff line number Diff line
@@ -19,13 +19,13 @@ import static com.android.launcher3.AbstractFloatingView.TYPE_ALL; 
import static com.android.launcher3.AbstractFloatingView.TYPE_ALL_APPS_EDU;

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

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

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

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

import static com.android.launcher3.anim.Interpolators.DEACCEL_3;

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

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

import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_HOME_GESTURE;

import static com.android.launcher3.touch.AbstractStateChangeTouchController.SUCCESS_TRANSITION_PROGRESS;

import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;

import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;



import android.animation.ValueAnimator;
@@ -45,6 +45,7 @@ import com.android.launcher3.anim.Interpolators; 
import com.android.launcher3.anim.PendingAnimation;

import com.android.launcher3.compat.AccessibilityManagerCompat;

import com.android.launcher3.config.FeatureFlags;

import com.android.launcher3.graphics.OverviewScrim;

import com.android.launcher3.logging.StatsLogManager;

import com.android.launcher3.states.StateAnimationConfig;

import com.android.launcher3.testing.TestProtocol;
@@ -52,7 +53,9 @@ import com.android.launcher3.touch.SingleAxisSwipeDetector; 
import com.android.launcher3.userevent.nano.LauncherLogProto;

import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;

import com.android.launcher3.util.TouchController;

import com.android.quickstep.util.AnimatorControllerWithResistance;

import com.android.quickstep.util.AssistantUtilities;

import com.android.quickstep.util.OverviewToHomeAnim;

import com.android.quickstep.views.RecentsView;

import com.android.systemui.shared.system.ActivityManagerWrapper;
@@ -63,6 +66,8 @@ public class NavBarToHomeTouchController implements TouchController, 
        SingleAxisSwipeDetector.Listener {



    private static final Interpolator PULLBACK_INTERPOLATOR = DEACCEL_3;

    // How much of the overview scrim we can remove during the transition.

    private static final float OVERVIEW_TO_HOME_SCRIM_PROGRESS = 0.5f;



    private final Launcher mLauncher;

    private final SingleAxisSwipeDetector mSwipeDetector;
@@ -156,8 +161,13 @@ public class NavBarToHomeTouchController implements TouchController, 
        final PendingAnimation builder = new PendingAnimation(accuracy);

        if (mStartState.overviewUi) {

            RecentsView recentsView = mLauncher.getOverviewPanel();

            builder.setFloat(recentsView, ADJACENT_PAGE_OFFSET,

                    -mPullbackDistance / recentsView.getPageOffsetScale(), PULLBACK_INTERPOLATOR);

            AnimatorControllerWithResistance.createRecentsResistanceFromOverviewAnim(mLauncher,

                    builder);

            float endScrimAlpha = Utilities.mapRange(OVERVIEW_TO_HOME_SCRIM_PROGRESS,

                    mStartState.getOverviewScrimAlpha(mLauncher),

                    mEndState.getOverviewScrimAlpha(mLauncher));

            builder.setFloat(mLauncher.getDragLayer().getOverviewScrim(),

                    OverviewScrim.SCRIM_PROGRESS, endScrimAlpha, PULLBACK_INTERPOLATOR);

            if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {

                builder.addOnFrameCallback(recentsView::redrawLiveTile);

            }
@@ -211,8 +221,13 @@ public class NavBarToHomeTouchController implements TouchController, 
                recentsView.switchToScreenshot(null,

                        () -> recentsView.finishRecentsAnimation(true /* toRecents */, null));

            }

            if (mStartState == OVERVIEW) {

                new OverviewToHomeAnim(mLauncher, () -> onSwipeInteractionCompleted(mEndState))

                        .animateWithVelocity(velocity);

            } else {

                mLauncher.getStateManager().goToState(mEndState, true,

                        () -> onSwipeInteractionCompleted(mEndState));

            }

            if (mStartState != mEndState) {

                logStateChange(mStartState.containerType, logAction);

            }

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java

+26 −45
Original line number Diff line number Diff line
@@ -21,11 +21,8 @@ import static com.android.launcher3.LauncherState.NORMAL; 
import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.Utilities.EDGE_NAV_BAR;

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

import static com.android.launcher3.states.StateAnimationConfig.PLAY_ATOMIC_OVERVIEW_PEEK;

import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;



import android.animation.Animator;

import android.animation.AnimatorSet;

import android.animation.ObjectAnimator;

import android.animation.ValueAnimator;

import android.graphics.PointF;
@@ -35,14 +32,15 @@ import android.view.MotionEvent; 
import com.android.launcher3.Launcher;

import com.android.launcher3.LauncherState;

import com.android.launcher3.Utilities;

import com.android.launcher3.anim.AnimationSuccessListener;

import com.android.launcher3.anim.AnimatorPlaybackController;

import com.android.launcher3.graphics.OverviewScrim;

import com.android.launcher3.statemanager.StateManager;

import com.android.launcher3.states.StateAnimationConfig;

import com.android.launcher3.testing.TestProtocol;

import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;

import com.android.launcher3.util.VibratorWrapper;

import com.android.quickstep.util.StaggeredWorkspaceAnim;

import com.android.quickstep.util.AnimatorControllerWithResistance;

import com.android.quickstep.util.OverviewToHomeAnim;

import com.android.quickstep.views.RecentsView;



/**
@@ -62,10 +60,10 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo 


    private boolean mDidTouchStartInNavBar;

    private boolean mReachedOverview;

    private boolean mIsOverviewRehidden;

    private boolean mIsHomeStaggeredAnimFinished;

    // The last recorded displacement before we reached overview.

    private PointF mStartDisplacement = new PointF();

    private float mStartY;

    private AnimatorPlaybackController mOverviewResistYAnim;



    // Normal to Hint animation has flag SKIP_OVERVIEW, so we update this scrim with this animator.

    private ObjectAnimator mNormalToHintOverviewScrimAnimator;
@@ -123,6 +121,7 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo 
                    mToState.getOverviewScrimAlpha(mLauncher));

        }

        mReachedOverview = false;

        mOverviewResistYAnim = null;

    }



    @Override
@@ -160,6 +159,9 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo 
        mNormalToHintOverviewScrimAnimator = null;

        mCurrentAnimation.dispatchOnCancelWithoutCancelRunnable(() -> {

            mLauncher.getStateManager().goToState(OVERVIEW, true, () -> {

                mOverviewResistYAnim = AnimatorControllerWithResistance

                        .createRecentsResistanceFromOverviewAnim(mLauncher, null)

                        .createPlaybackController();

                mReachedOverview = true;

                maybeSwipeInteractionToOverviewComplete();

            });
@@ -173,13 +175,6 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo 
        }

    }



    // Used if flinging back to home after reaching overview

    private void maybeSwipeInteractionToHomeComplete() {

        if (mIsHomeStaggeredAnimFinished && mIsOverviewRehidden) {

            onSwipeInteractionCompleted(NORMAL, Touch.FLING);

        }

    }



    @Override

    protected boolean handlingOverviewAnim() {

        return mDidTouchStartInNavBar && super.handlingOverviewAnim();
@@ -193,12 +188,18 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo 
        if (mMotionPauseDetector.isPaused()) {

            if (!mReachedOverview) {

                mStartDisplacement.set(xDisplacement, yDisplacement);

                mStartY = event.getY();

            } else {

                mRecentsView.setTranslationX((xDisplacement - mStartDisplacement.x)

                        * OVERVIEW_MOVEMENT_FACTOR);

                float yProgress = (mStartDisplacement.y - yDisplacement) / mStartY;

                if (yProgress > 0 && mOverviewResistYAnim != null) {

                    mOverviewResistYAnim.setPlayFraction(yProgress);

                } else {

                    mRecentsView.setTranslationY((yDisplacement - mStartDisplacement.y)

                            * OVERVIEW_MOVEMENT_FACTOR);

                }

            }

            // Stay in Overview.

            return true;

        }
@@ -212,35 +213,8 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo 
        StateManager<LauncherState> stateManager = mLauncher.getStateManager();

        boolean goToHomeInsteadOfOverview = isFling;

        if (goToHomeInsteadOfOverview) {

            if (velocity > 0) {

                stateManager.goToState(NORMAL, true,

                        () -> onSwipeInteractionCompleted(NORMAL, Touch.FLING));

            } else {

                mIsHomeStaggeredAnimFinished = mIsOverviewRehidden = false;



                StaggeredWorkspaceAnim staggeredWorkspaceAnim = new StaggeredWorkspaceAnim(

                        mLauncher, velocity, false /* animateOverviewScrim */);

                staggeredWorkspaceAnim.addAnimatorListener(new AnimationSuccessListener() {

                    @Override

                    public void onAnimationSuccess(Animator animator) {

                        mIsHomeStaggeredAnimFinished = true;

                        maybeSwipeInteractionToHomeComplete();

                    }

                }).start();



                // StaggeredWorkspaceAnim doesn't animate overview, so we handle it here.

                stateManager.cancelAnimation();

                StateAnimationConfig config = new StateAnimationConfig();

                config.duration = OVERVIEW.getTransitionDuration(mLauncher);

                config.animFlags = PLAY_ATOMIC_OVERVIEW_PEEK;

                AnimatorSet anim = stateManager.createAtomicAnimation(

                        stateManager.getState(), NORMAL, config);

                anim.addListener(AnimationSuccessListener.forRunnable(() -> {

                    mIsOverviewRehidden = true;

                    maybeSwipeInteractionToHomeComplete();

                }));

                anim.start();

            }

            new OverviewToHomeAnim(mLauncher, ()-> onSwipeInteractionCompleted(NORMAL, Touch.FLING))

                    .animateWithVelocity(velocity);

        }

        if (mReachedOverview) {

            float distanceDp = dpiFromPx(Math.max(
@@ -256,6 +230,13 @@ public class NoButtonNavbarToOverviewTouchController extends FlingAndHoldTouchCo 
                    .withEndAction(goToHomeInsteadOfOverview

                            ? null

                            : this::maybeSwipeInteractionToOverviewComplete);

            if (!goToHomeInsteadOfOverview) {

                // Return to normal properties for the overview state.

                StateAnimationConfig config = new StateAnimationConfig();

                config.duration = duration;

                LauncherState state = mLauncher.getStateManager().getState();

                mLauncher.getStateManager().createAtomicAnimation(state, state, config).start();

            }

        }

    }

quickstep/recents_ui_overrides/src/com/android/quickstep/util/OverviewToHomeAnim.java

0 → 100644
+143 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2020 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.quickstep.util;



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

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

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

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

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

import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_COMPONENTS;

import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_ACTIONS_FADE;

import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;

import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;

import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;

import static com.android.launcher3.states.StateAnimationConfig.PLAY_ATOMIC_OVERVIEW_PEEK;



import android.animation.Animator;

import android.animation.AnimatorSet;

import android.util.Log;

import android.view.animation.Interpolator;



import com.android.launcher3.Launcher;

import com.android.launcher3.LauncherState;

import com.android.launcher3.anim.AnimationSuccessListener;

import com.android.launcher3.statemanager.StateManager;

import com.android.launcher3.states.StateAnimationConfig;

import com.android.quickstep.views.RecentsView;



/**

 * Runs an animation from overview to home. Currently, this animation is just a wrapper around the

 * normal state transition, in order to keep RecentsView at the same scale and translationY that

 * it started out at as it translates offscreen. It also scrolls RecentsView to page 0 and may play

 * a {@link StaggeredWorkspaceAnim} if we're starting from an upward fling.

 */

public class OverviewToHomeAnim {



    private static final String TAG = "OverviewToHomeAnim";



    // Constants to specify how to scroll RecentsView to the default page if it's not already there.

    private static final int DEFAULT_PAGE = 0;

    private static final int PER_PAGE_SCROLL_DURATION = 150;

    private static final int MAX_PAGE_SCROLL_DURATION = 750;



    private final Launcher mLauncher;

    private final Runnable mOnReachedHome;



    // Only run mOnReachedHome when both of these are true.

    private boolean mIsHomeStaggeredAnimFinished;

    private boolean mIsOverviewHidden;



    public OverviewToHomeAnim(Launcher launcher, Runnable onReachedHome) {

        mLauncher = launcher;

        mOnReachedHome = onReachedHome;

    }



    /**

     * Starts the animation. If velocity < 0 (i.e. upwards), also plays a

     * {@link StaggeredWorkspaceAnim}.

     */

    public void animateWithVelocity(float velocity) {

        StateManager<LauncherState> stateManager = mLauncher.getStateManager();

        LauncherState startState = stateManager.getState();

        if (startState != OVERVIEW) {

            Log.e(TAG, "animateFromOverviewToHome: unexpected start state " + startState);

        }



        boolean playStaggeredWorkspaceAnim = velocity < 0;

        if (playStaggeredWorkspaceAnim) {

            StaggeredWorkspaceAnim staggeredWorkspaceAnim = new StaggeredWorkspaceAnim(

                    mLauncher, velocity, false /* animateOverviewScrim */);

            staggeredWorkspaceAnim.addAnimatorListener(new AnimationSuccessListener() {

                @Override

                public void onAnimationSuccess(Animator animator) {

                    mIsHomeStaggeredAnimFinished = true;

                    maybeOverviewToHomeAnimComplete();

                }

            }).start();

        } else {

            mIsHomeStaggeredAnimFinished = true;

        }



        RecentsView recentsView = mLauncher.getOverviewPanel();

        int numPagesToScroll = recentsView.getNextPage() - DEFAULT_PAGE;

        int scrollDuration = Math.min(MAX_PAGE_SCROLL_DURATION,

                numPagesToScroll * PER_PAGE_SCROLL_DURATION);

        int duration = Math.max(scrollDuration, startState.getTransitionDuration(mLauncher));



        StateAnimationConfig config = new UseFirstInterpolatorStateAnimConfig();

        config.duration = duration;

        config.animFlags = playStaggeredWorkspaceAnim

                // StaggeredWorkspaceAnim doesn't animate overview, so we handle it here.

                ? PLAY_ATOMIC_OVERVIEW_PEEK

                : ANIM_ALL_COMPONENTS;

        config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_X, DEACCEL);

        config.setInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, FINAL_FRAME);

        config.setInterpolator(ANIM_OVERVIEW_SCALE, FINAL_FRAME);

        config.setInterpolator(ANIM_OVERVIEW_ACTIONS_FADE, INSTANT);

        AnimatorSet anim = stateManager.createAtomicAnimation(

                startState, NORMAL, config);

        anim.addListener(new AnimationSuccessListener() {

            @Override

            public void onAnimationSuccess(Animator animator) {

                mIsOverviewHidden = true;

                maybeOverviewToHomeAnimComplete();

            }

        });

        stateManager.cancelAnimation();

        anim.start();

        recentsView.snapToPage(DEFAULT_PAGE, duration);

    }



    private void maybeOverviewToHomeAnimComplete() {

        if (mIsHomeStaggeredAnimFinished && mIsOverviewHidden) {

            mOnReachedHome.run();

        }

    }



    /**

     * Wrapper around StateAnimationConfig that doesn't allow interpolators to be set if they are

     * already set. This ensures they aren't overridden before being used.

     */

    private static class UseFirstInterpolatorStateAnimConfig extends StateAnimationConfig {

        @Override

        public void setInterpolator(int animId, Interpolator interpolator) {

            if (mInterpolators[animId] == null || interpolator == null) {

                super.setInterpolator(animId, interpolator);

            }

        }

    }

}