Fix extra dependency errors

8 files changed, 1 insertions, 1192 deletions

diff --git a/fastadapter/build.gradle b/fastadapter/build.gradle
index 86fd084..9fd848e 100644
--- a/fastadapter/build.gradle
+++ b/fastadapter/build.gradle
@@ -3,6 +3,7 @@ ext.kauSubModuleMinSdk = kau.Versions.coreMinSdk
 apply from: '../android-lib.gradle'
 
 dependencies {
+    implementation project(':core')
     api project(':adapter')
 
     api kau.Dependencies.fastAdapter
diff --git a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/AnimatorInterfaces.kt b/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/AnimatorInterfaces.kt
deleted file mode 100644
index b83a2d0..0000000
--- a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/AnimatorInterfaces.kt
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2018 Allan Wang
- *
- * 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 ca.allanwang.kau.animators
-
-import android.view.View
-import android.view.ViewPropertyAnimator
-import androidx.recyclerview.widget.RecyclerView
-
-/**
- * Created by Allan Wang on 2017-07-11.
- */
-class KauAnimatorException(message: String) : RuntimeException(message)
-
-interface KauAnimatorAdd {
-    fun animationPrepare(holder: RecyclerView.ViewHolder): View.() -> Unit
-    fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit
-    fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit
-    fun getDelay(remove: Long, move: Long, change: Long): Long
-    var itemDelayFactor: Float
-}
-
-interface KauAnimatorRemove {
-    fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit
-    fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit
-    fun getDelay(remove: Long, move: Long, change: Long): Long
-    var itemDelayFactor: Float
-}
-
-interface KauAnimatorChange {
-    fun changeOldAnimation(
-        holder: RecyclerView.ViewHolder,
-        changeInfo: BaseItemAnimator.ChangeInfo
-    ): ViewPropertyAnimator.() -> Unit
-
-    fun changeNewAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit
-    fun changeAnimationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit
-}
diff --git a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/BaseItemAnimator.java b/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/BaseItemAnimator.java
deleted file mode 100644
index 4ead735..0000000
--- a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/BaseItemAnimator.java
+++ /dev/null
@@ -1,765 +0,0 @@
-package ca.allanwang.kau.animators;
-
-/*
- * Created by Allan Wang on 2017-06-27.
- *
- * Based on Item Animator by {@author Mike Penz}
- * Rewritten to match with the updated compat dependencies
- */
-/*
- * Copyright (C) 2014 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.
- */
-
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.TimeInterpolator;
-import android.animation.ValueAnimator;
-import androidx.annotation.NonNull;
-import androidx.core.view.ViewCompat;
-import androidx.recyclerview.widget.RecyclerView.ViewHolder;
-import androidx.recyclerview.widget.SimpleItemAnimator;
-
-import android.view.View;
-import android.view.ViewPropertyAnimator;
-import android.view.animation.Interpolator;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * This implementation of {@link androidx.recyclerview.widget.RecyclerView.ItemAnimator} provides basic
- * animations on remove, add, and move events that happen to the items in
- * a RecyclerView. RecyclerView uses a DefaultItemAnimator by default.
- *
- * @see androidx.recyclerview.widget.RecyclerView#setItemAnimator(androidx.recyclerview.widget.RecyclerView.ItemAnimator)
- */
-public abstract class BaseItemAnimator extends SimpleItemAnimator {
-    private static final boolean DEBUG = false;
-
-    private static TimeInterpolator sDefaultInterpolator;
-
-    private ArrayList<ViewHolder> mPendingRemovals = new ArrayList<>();
-    private ArrayList<ViewHolder> mPendingAdditions = new ArrayList<>();
-    private ArrayList<MoveInfo> mPendingMoves = new ArrayList<>();
-    private ArrayList<ChangeInfo> mPendingChanges = new ArrayList<>();
-
-    ArrayList<ArrayList<ViewHolder>> mAdditionsList = new ArrayList<>();
-    ArrayList<ArrayList<MoveInfo>> mMovesList = new ArrayList<>();
-    ArrayList<ArrayList<ChangeInfo>> mChangesList = new ArrayList<>();
-
-    ArrayList<ViewHolder> mAddAnimations = new ArrayList<>();
-    ArrayList<ViewHolder> mMoveAnimations = new ArrayList<>();
-    ArrayList<ViewHolder> mRemoveAnimations = new ArrayList<>();
-    ArrayList<ViewHolder> mChangeAnimations = new ArrayList<>();
-
-    public Interpolator interpolator;
-
-    private static class MoveInfo {
-        public ViewHolder holder;
-        public int fromX, fromY, toX, toY;
-
-        MoveInfo(ViewHolder holder, int fromX, int fromY, int toX, int toY) {
-            this.holder = holder;
-            this.fromX = fromX;
-            this.fromY = fromY;
-            this.toX = toX;
-            this.toY = toY;
-        }
-    }
-
-    public static class ChangeInfo {
-        public ViewHolder oldHolder, newHolder;
-        public int fromX, fromY, toX, toY;
-
-        private ChangeInfo(ViewHolder oldHolder, ViewHolder newHolder) {
-            this.oldHolder = oldHolder;
-            this.newHolder = newHolder;
-        }
-
-        ChangeInfo(ViewHolder oldHolder, ViewHolder newHolder,
-                   int fromX, int fromY, int toX, int toY) {
-            this(oldHolder, newHolder);
-            this.fromX = fromX;
-            this.fromY = fromY;
-            this.toX = toX;
-            this.toY = toY;
-        }
-
-        @Override
-        public String toString() {
-            return "ChangeInfo{"
-                    + "oldHolder=" + oldHolder
-                    + ", newHolder=" + newHolder
-                    + ", fromX=" + fromX
-                    + ", fromY=" + fromY
-                    + ", toX=" + toX
-                    + ", toY=" + toY
-                    + '}';
-        }
-    }
-
-    @Override
-    public void runPendingAnimations() {
-        boolean removalsPending = !mPendingRemovals.isEmpty();
-        boolean movesPending = !mPendingMoves.isEmpty();
-        boolean changesPending = !mPendingChanges.isEmpty();
-        boolean additionsPending = !mPendingAdditions.isEmpty();
-        if (!removalsPending && !movesPending && !additionsPending && !changesPending) {
-            // nothing to animate
-            return;
-        }
-        // First, remove stuff
-        for (ViewHolder holder : mPendingRemovals) {
-            animateRemoveImpl(holder);
-        }
-        mPendingRemovals.clear();
-        // Next, move stuff
-        if (movesPending) {
-            final ArrayList<MoveInfo> moves = new ArrayList<>();
-            moves.addAll(mPendingMoves);
-            mMovesList.add(moves);
-            mPendingMoves.clear();
-            Runnable mover = new Runnable() {
-                @Override
-                public void run() {
-                    for (MoveInfo moveInfo : moves) {
-                        animateMoveImpl(moveInfo.holder, moveInfo.fromX, moveInfo.fromY,
-                                moveInfo.toX, moveInfo.toY);
-                    }
-                    moves.clear();
-                    mMovesList.remove(moves);
-                }
-            };
-            if (removalsPending) {
-                View view = moves.get(0).holder.itemView;
-                ViewCompat.postOnAnimationDelayed(view, mover, 0);
-            } else {
-                mover.run();
-            }
-        }
-        // Next, change stuff, to run in parallel with move animations
-        if (changesPending) {
-            final ArrayList<ChangeInfo> changes = new ArrayList<>();
-            changes.addAll(mPendingChanges);
-            mChangesList.add(changes);
-            mPendingChanges.clear();
-            Runnable changer = new Runnable() {
-                @Override
-                public void run() {
-                    for (ChangeInfo change : changes) {
-                        animateChangeImpl(change);
-                    }
-                    changes.clear();
-                    mChangesList.remove(changes);
-                }
-            };
-            if (removalsPending) {
-                ViewHolder holder = changes.get(0).oldHolder;
-                long moveDuration = movesPending ? getMoveDuration() : 0;
-                ViewCompat.postOnAnimationDelayed(holder.itemView, changer, getRemoveDelay(getRemoveDuration(), moveDuration, getChangeDuration()));
-            } else {
-                changer.run();
-            }
-        }
-        // Next, add stuff
-        if (additionsPending) {
-            final ArrayList<ViewHolder> additions = new ArrayList<>();
-            additions.addAll(mPendingAdditions);
-            mAdditionsList.add(additions);
-            mPendingAdditions.clear();
-            Runnable adder = new Runnable() {
-                @Override
-                public void run() {
-                    for (ViewHolder holder : additions) {
-                        animateAddImpl(holder);
-                    }
-                    additions.clear();
-                    mAdditionsList.remove(additions);
-                }
-            };
-            if (removalsPending || movesPending || changesPending) {
-                long removeDuration = removalsPending ? getRemoveDuration() : 0;
-                long moveDuration = movesPending ? getMoveDuration() : 0;
-                long changeDuration = changesPending ? getChangeDuration() : 0;
-                View view = additions.get(0).itemView;
-                ViewCompat.postOnAnimationDelayed(view, adder, getAddDelay(removeDuration, moveDuration, changeDuration));
-            } else {
-                adder.run();
-            }
-        }
-    }
-
-    /**
-     * used to calculated the delay until the remove animation should start
-     *
-     * @param remove the remove duration
-     * @param move   the move duration
-     * @param change the change duration
-     * @return the calculated delay for the remove items animation
-     */
-    public long getRemoveDelay(long remove, long move, long change) {
-        return remove + Math.max(move, change);
-    }
-
-    /**
-     * used to calculated the delay until the add animation should start
-     *
-     * @param remove the remove duration
-     * @param move   the move duration
-     * @param change the change duration
-     * @return the calculated delay for the add items animation
-     */
-    public long getAddDelay(long remove, long move, long change) {
-        return remove + Math.max(move, change);
-    }
-
-    @Override
-    public boolean animateRemove(final ViewHolder holder) {
-        resetAnimation(holder);
-        mPendingRemovals.add(holder);
-        return true;
-    }
-
-    private void animateRemoveImpl(final ViewHolder holder) {
-        final ViewPropertyAnimator animation = removeAnimation(holder);
-        mRemoveAnimations.add(holder);
-        animation.setListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationStart(Animator animator) {
-                dispatchRemoveStarting(holder);
-            }
-
-            @Override
-            public void onAnimationEnd(Animator animator) {
-                animation.setListener(null);
-                removeAnimationCleanup(holder);
-                dispatchRemoveFinished(holder);
-                mRemoveAnimations.remove(holder);
-                dispatchFinishedWhenDone();
-            }
-        }).start();
-    }
-
-    abstract public ViewPropertyAnimator removeAnimation(ViewHolder holder);
-
-    abstract public void removeAnimationCleanup(ViewHolder holder);
-
-    @Override
-    public boolean animateAdd(final ViewHolder holder) {
-        resetAnimation(holder);
-        addAnimationPrepare(holder);
-        mPendingAdditions.add(holder);
-        return true;
-    }
-
-    void animateAddImpl(final ViewHolder holder) {
-        final ViewPropertyAnimator animation = addAnimation(holder);
-        mAddAnimations.add(holder);
-        animation.setListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationStart(Animator animator) {
-                dispatchAddStarting(holder);
-            }
-
-            @Override
-            public void onAnimationCancel(Animator animator) {
-                addAnimationCleanup(holder);
-            }
-
-            @Override
-            public void onAnimationEnd(Animator animator) {
-                animation.setListener(null);
-                dispatchAddFinished(holder);
-                mAddAnimations.remove(holder);
-                dispatchFinishedWhenDone();
-                addAnimationCleanup(holder);
-            }
-        }).start();
-    }
-
-    /**
-     * the animation to prepare the view before the add animation is run
-     *
-     * @param holder
-     */
-    public abstract void addAnimationPrepare(ViewHolder holder);
-
-    /**
-     * the animation for adding a view
-     *
-     * @param holder
-     * @return
-     */
-    public abstract ViewPropertyAnimator addAnimation(ViewHolder holder);
-
-    /**
-     * the cleanup method if the animation needs to be stopped. and tro prepare for the next view
-     *
-     * @param holder
-     */
-    abstract void addAnimationCleanup(ViewHolder holder);
-
-    @Override
-    public boolean animateMove(final ViewHolder holder, int fromX, int fromY,
-                               int toX, int toY) {
-        final View view = holder.itemView;
-        fromX += (int) holder.itemView.getTranslationX();
-        fromY += (int) holder.itemView.getTranslationY();
-        resetAnimation(holder);
-        int deltaX = toX - fromX;
-        int deltaY = toY - fromY;
-        if (deltaX == 0 && deltaY == 0) {
-            dispatchMoveFinished(holder);
-            return false;
-        }
-        if (deltaX != 0) {
-            view.setTranslationX(-deltaX);
-        }
-        if (deltaY != 0) {
-            view.setTranslationY(-deltaY);
-        }
-        mPendingMoves.add(new MoveInfo(holder, fromX, fromY, toX, toY));
-        return true;
-    }
-
-    void animateMoveImpl(final ViewHolder holder, int fromX, int fromY, int toX, int toY) {
-        final View view = holder.itemView;
-        final int deltaX = toX - fromX;
-        final int deltaY = toY - fromY;
-        if (deltaX != 0) {
-            view.animate().translationX(0);
-        }
-        if (deltaY != 0) {
-            view.animate().translationY(0);
-        }
-        // TODO: make EndActions end listeners instead, since end actions aren't called when
-        // vpas are canceled (and can't end them. why?)
-        // need listener functionality in VPACompat for this. Ick.
-        final ViewPropertyAnimator animation = view.animate();
-        mMoveAnimations.add(holder);
-        animation.setDuration(getMoveDuration()).setListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationStart(Animator animator) {
-                dispatchMoveStarting(holder);
-            }
-
-            @Override
-            public void onAnimationCancel(Animator animator) {
-                if (deltaX != 0) {
-                    view.setTranslationX(0);
-                }
-                if (deltaY != 0) {
-                    view.setTranslationY(0);
-                }
-            }
-
-            @Override
-            public void onAnimationEnd(Animator animator) {
-                animation.setListener(null);
-                dispatchMoveFinished(holder);
-                mMoveAnimations.remove(holder);
-                dispatchFinishedWhenDone();
-            }
-        }).start();
-    }
-
-    @Override
-    public boolean animateChange(ViewHolder oldHolder, ViewHolder newHolder,
-                                 int fromX, int fromY, int toX, int toY) {
-        if (oldHolder == newHolder) {
-            // Don't know how to run change animations when the same view holder is re-used.
-            // run a move animation to handle position changes.
-            return animateMove(oldHolder, fromX, fromY, toX, toY);
-        }
-        changeAnimation(oldHolder, newHolder,
-                fromX, fromY, toX, toY);
-        mPendingChanges.add(new ChangeInfo(oldHolder, newHolder, fromX, fromY, toX, toY));
-        return true;
-    }
-
-    void animateChangeImpl(final ChangeInfo changeInfo) {
-        final ViewHolder holder = changeInfo.oldHolder;
-        final View view = holder == null ? null : holder.itemView;
-        final ViewHolder newHolder = changeInfo.newHolder;
-        final View newView = newHolder != null ? newHolder.itemView : null;
-        if (view != null) {
-            final ViewPropertyAnimator oldViewAnim = changeOldAnimation(holder, changeInfo);
-            mChangeAnimations.add(changeInfo.oldHolder);
-            oldViewAnim.setListener(new AnimatorListenerAdapter() {
-                @Override
-                public void onAnimationStart(Animator animator) {
-                    dispatchChangeStarting(changeInfo.oldHolder, true);
-                }
-
-                @Override
-                public void onAnimationEnd(Animator animator) {
-                    oldViewAnim.setListener(null);
-                    changeAnimationCleanup(holder);
-                    view.setTranslationX(0);
-                    view.setTranslationY(0);
-                    dispatchChangeFinished(changeInfo.oldHolder, true);
-                    mChangeAnimations.remove(changeInfo.oldHolder);
-                    dispatchFinishedWhenDone();
-                }
-            }).start();
-        }
-        if (newView != null) {
-            final ViewPropertyAnimator newViewAnimation = changeNewAnimation(newHolder);
-            mChangeAnimations.add(changeInfo.newHolder);
-            newViewAnimation.setListener(new AnimatorListenerAdapter() {
-                @Override
-                public void onAnimationStart(Animator animator) {
-                    dispatchChangeStarting(changeInfo.newHolder, false);
-                }
-
-                @Override
-                public void onAnimationEnd(Animator animator) {
-                    newViewAnimation.setListener(null);
-                    changeAnimationCleanup(newHolder);
-                    newView.setTranslationX(0);
-                    newView.setTranslationY(0);
-                    dispatchChangeFinished(changeInfo.newHolder, false);
-                    mChangeAnimations.remove(changeInfo.newHolder);
-                    dispatchFinishedWhenDone();
-                }
-            }).start();
-        }
-    }
-
-    /**
-     * the whole change animation if we have to cross animate two views
-     *
-     * @param oldHolder
-     * @param newHolder
-     * @param fromX
-     * @param fromY
-     * @param toX
-     * @param toY
-     */
-    public void changeAnimation(ViewHolder oldHolder, ViewHolder newHolder, int fromX, int fromY, int toX, int toY) {
-        final float prevTranslationX = oldHolder.itemView.getTranslationX();
-        final float prevTranslationY = oldHolder.itemView.getTranslationY();
-        final float prevValue = oldHolder.itemView.getAlpha();
-        resetAnimation(oldHolder);
-        int deltaX = (int) (toX - fromX - prevTranslationX);
-        int deltaY = (int) (toY - fromY - prevTranslationY);
-        // recover prev translation state after ending animation
-        oldHolder.itemView.setTranslationX(prevTranslationX);
-        oldHolder.itemView.setTranslationY(prevTranslationY);
-
-        oldHolder.itemView.setAlpha(prevValue);
-        if (newHolder != null) {
-            // carry over translation values
-            resetAnimation(newHolder);
-            newHolder.itemView.setTranslationX(-deltaX);
-            newHolder.itemView.setTranslationY(-deltaY);
-            newHolder.itemView.setAlpha(0);
-        }
-    }
-
-    /**
-     * the animation for removing the old view
-     *
-     * @param holder
-     * @return
-     */
-    public abstract ViewPropertyAnimator changeOldAnimation(ViewHolder holder, ChangeInfo changeInfo);
-
-    /**
-     * the animation for changing the new view
-     *
-     * @param holder
-     * @return
-     */
-    public abstract ViewPropertyAnimator changeNewAnimation(ViewHolder holder);
-
-    /**
-     * the cleanup method if the animation needs to be stopped. and to prepare for the next view
-     *
-     * @param holder
-     */
-    public abstract void changeAnimationCleanup(ViewHolder holder);
-
-    private void endChangeAnimation(List<ChangeInfo> infoList, ViewHolder item) {
-        for (int i = infoList.size() - 1; i >= 0; i--) {
-            ChangeInfo changeInfo = infoList.get(i);
-            if (endChangeAnimationIfNecessary(changeInfo, item)) {
-                if (changeInfo.oldHolder == null && changeInfo.newHolder == null) {
-                    infoList.remove(changeInfo);
-                }
-            }
-        }
-    }
-
-    private void endChangeAnimationIfNecessary(ChangeInfo changeInfo) {
-        if (changeInfo.oldHolder != null) {
-            endChangeAnimationIfNecessary(changeInfo, changeInfo.oldHolder);
-        }
-        if (changeInfo.newHolder != null) {
-            endChangeAnimationIfNecessary(changeInfo, changeInfo.newHolder);
-        }
-    }
-
-    private boolean endChangeAnimationIfNecessary(ChangeInfo changeInfo, ViewHolder item) {
-        boolean oldItem = false;
-        if (changeInfo.newHolder == item) {
-            changeInfo.newHolder = null;
-        } else if (changeInfo.oldHolder == item) {
-            changeInfo.oldHolder = null;
-            oldItem = true;
-        } else {
-            return false;
-        }
-        changeAnimationCleanup(item);
-        item.itemView.setTranslationX(0);
-        item.itemView.setTranslationY(0);
-        dispatchChangeFinished(item, oldItem);
-        return true;
-    }
-
-    @Override
-    public void endAnimation(ViewHolder item) {
-        final View view = item.itemView;
-        // this will trigger end callback which should set properties to their target values.
-        view.animate().cancel();
-        // TODO if some other animations are chained to end, how do we cancel them as well?
-        for (int i = mPendingMoves.size() - 1; i >= 0; i--) {
-            MoveInfo moveInfo = mPendingMoves.get(i);
-            if (moveInfo.holder == item) {
-                view.setTranslationY(0);
-                view.setTranslationX(0);
-                dispatchMoveFinished(item);
-                mPendingMoves.remove(i);
-            }
-        }
-        endChangeAnimation(mPendingChanges, item);
-        if (mPendingRemovals.remove(item)) {
-            removeAnimationCleanup(item);
-            dispatchRemoveFinished(item);
-        }
-        if (mPendingAdditions.remove(item)) {
-            addAnimationCleanup(item);
-            dispatchAddFinished(item);
-        }
-
-        for (int i = mChangesList.size() - 1; i >= 0; i--) {
-            ArrayList<ChangeInfo> changes = mChangesList.get(i);
-            endChangeAnimation(changes, item);
-            if (changes.isEmpty()) {
-                mChangesList.remove(i);
-            }
-        }
-        for (int i = mMovesList.size() - 1; i >= 0; i--) {
-            ArrayList<MoveInfo> moves = mMovesList.get(i);
-            for (int j = moves.size() - 1; j >= 0; j--) {
-                MoveInfo moveInfo = moves.get(j);
-                if (moveInfo.holder == item) {
-                    view.setTranslationY(0);
-                    view.setTranslationX(0);
-                    dispatchMoveFinished(item);
-                    moves.remove(j);
-                    if (moves.isEmpty()) {
-                        mMovesList.remove(i);
-                    }
-                    break;
-                }
-            }
-        }
-        for (int i = mAdditionsList.size() - 1; i >= 0; i--) {
-            ArrayList<ViewHolder> additions = mAdditionsList.get(i);
-            if (additions.remove(item)) {
-                addAnimationCleanup(item);
-                dispatchAddFinished(item);
-                if (additions.isEmpty()) {
-                    mAdditionsList.remove(i);
-                }
-            }
-        }
-
-        // animations should be ended by the cancel above.
-        //noinspection PointlessBooleanExpression,ConstantConditions
-        if (mRemoveAnimations.remove(item) && DEBUG) {
-            throw new IllegalStateException("after animation is cancelled, item should not be in "
-                    + "mRemoveAnimations list");
-        }
-
-        //noinspection PointlessBooleanExpression,ConstantConditions
-        if (mAddAnimations.remove(item) && DEBUG) {
-            throw new IllegalStateException("after animation is cancelled, item should not be in "
-                    + "mAddAnimations list");
-        }
-
-        //noinspection PointlessBooleanExpression,ConstantConditions
-        if (mChangeAnimations.remove(item) && DEBUG) {
-            throw new IllegalStateException("after animation is cancelled, item should not be in "
-                    + "mChangeAnimations list");
-        }
-
-        //noinspection PointlessBooleanExpression,ConstantConditions
-        if (mMoveAnimations.remove(item) && DEBUG) {
-            throw new IllegalStateException("after animation is cancelled, item should not be in "
-                    + "mMoveAnimations list");
-        }
-        dispatchFinishedWhenDone();
-    }
-
-    private void resetAnimation(ViewHolder holder) {
-
-        if (sDefaultInterpolator == null) {
-            sDefaultInterpolator = new ValueAnimator().getInterpolator();
-        }
-        holder.itemView.animate().setInterpolator(sDefaultInterpolator);
-        endAnimation(holder);
-    }
-
-    @Override
-    public boolean isRunning() {
-        return (!mPendingAdditions.isEmpty()
-                || !mPendingChanges.isEmpty()
-                || !mPendingMoves.isEmpty()
-                || !mPendingRemovals.isEmpty()
-                || !mMoveAnimations.isEmpty()
-                || !mRemoveAnimations.isEmpty()
-                || !mAddAnimations.isEmpty()
-                || !mChangeAnimations.isEmpty()
-                || !mMovesList.isEmpty()
-                || !mAdditionsList.isEmpty()
-                || !mChangesList.isEmpty());
-    }
-
-    /**
-     * Check the state of currently pending and running animations. If there are none
-     * pending/running, call {@link #dispatchAnimationsFinished()} to notify any
-     * listeners.
-     */
-    void dispatchFinishedWhenDone() {
-        if (!isRunning()) {
-            dispatchAnimationsFinished();
-        }
-    }
-
-    @Override
-    public void endAnimations() {
-        int count = mPendingMoves.size();
-        for (int i = count - 1; i >= 0; i--) {
-            MoveInfo item = mPendingMoves.get(i);
-            View view = item.holder.itemView;
-            view.setTranslationY(0);
-            view.setTranslationX(0);
-            dispatchMoveFinished(item.holder);
-            mPendingMoves.remove(i);
-        }
-        count = mPendingRemovals.size();
-        for (int i = count - 1; i >= 0; i--) {
-            ViewHolder item = mPendingRemovals.get(i);
-            dispatchRemoveFinished(item);
-            mPendingRemovals.remove(i);
-        }
-        count = mPendingAdditions.size();
-        for (int i = count - 1; i >= 0; i--) {
-            ViewHolder item = mPendingAdditions.get(i);
-            addAnimationCleanup(item);
-            dispatchAddFinished(item);
-            mPendingAdditions.remove(i);
-        }
-        count = mPendingChanges.size();
-        for (int i = count - 1; i >= 0; i--) {
-            endChangeAnimationIfNecessary(mPendingChanges.get(i));
-        }
-        mPendingChanges.clear();
-        if (!isRunning()) {
-            return;
-        }
-
-        int listCount = mMovesList.size();
-        for (int i = listCount - 1; i >= 0; i--) {
-            ArrayList<MoveInfo> moves = mMovesList.get(i);
-            count = moves.size();
-            for (int j = count - 1; j >= 0; j--) {
-                MoveInfo moveInfo = moves.get(j);
-                ViewHolder item = moveInfo.holder;
-                View view = item.itemView;
-                view.setTranslationY(0);
-                view.setTranslationX(0);
-                dispatchMoveFinished(moveInfo.holder);
-                moves.remove(j);
-                if (moves.isEmpty()) {
-                    mMovesList.remove(moves);
-                }
-            }
-        }
-        listCount = mAdditionsList.size();
-        for (int i = listCount - 1; i >= 0; i--) {
-            ArrayList<ViewHolder> additions = mAdditionsList.get(i);
-            count = additions.size();
-            for (int j = count - 1; j >= 0; j--) {
-                ViewHolder item = additions.get(j);
-                View view = item.itemView;
-                addAnimationCleanup(item);
-                dispatchAddFinished(item);
-                additions.remove(j);
-                if (additions.isEmpty()) {
-                    mAdditionsList.remove(additions);
-                }
-            }
-        }
-        listCount = mChangesList.size();
-        for (int i = listCount - 1; i >= 0; i--) {
-            ArrayList<ChangeInfo> changes = mChangesList.get(i);
-            count = changes.size();
-            for (int j = count - 1; j >= 0; j--) {
-                endChangeAnimationIfNecessary(changes.get(j));
-                if (changes.isEmpty()) {
-                    mChangesList.remove(changes);
-                }
-            }
-        }
-
-        cancelAll(mRemoveAnimations);
-        cancelAll(mMoveAnimations);
-        cancelAll(mAddAnimations);
-        cancelAll(mChangeAnimations);
-
-        dispatchAnimationsFinished();
-    }
-
-    void cancelAll(List<ViewHolder> viewHolders) {
-        for (int i = viewHolders.size() - 1; i >= 0; i--) {
-            viewHolders.get(i).itemView.animate().cancel();
-        }
-    }
-
-    /**
-     * {@inheritDoc}
-     * <p>
-     * If the payload list is not empty, DefaultItemAnimator returns <code>true</code>.
-     * When this is the case:
-     * <ul>
-     * <li>If you override {@link #animateChange(ViewHolder, ViewHolder, int, int, int, int)}, both
-     * ViewHolder arguments will be the same instance.
-     * </li>
-     * <li>
-     * If you are not overriding {@link #animateChange(ViewHolder, ViewHolder, int, int, int, int)},
-     * then DefaultItemAnimator will call {@link #animateMove(ViewHolder, int, int, int, int)} and
-     * run a move animation instead.
-     * </li>
-     * </ul>
-     */
-    @Override
-    public boolean canReuseUpdatedViewHolder(@NonNull ViewHolder viewHolder,
-                                             @NonNull List<Object> payloads) {
-        return !payloads.isEmpty() || super.canReuseUpdatedViewHolder(viewHolder, payloads);
-    }
-}
diff --git a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/DefaultAnimator.kt b/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/DefaultAnimator.kt
deleted file mode 100644
index 4e342ab..0000000
--- a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/DefaultAnimator.kt
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright 2018 Allan Wang
- *
- * 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 ca.allanwang.kau.animators
-
-import android.view.ViewPropertyAnimator
-import androidx.recyclerview.widget.RecyclerView
-
-/**
- * Created by Allan Wang on 2017-06-27.
- */
-open class DefaultAnimator : BaseItemAnimator() {
-
-    override fun removeAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            alpha(0f)
-            duration = this@DefaultAnimator.removeDuration
-            interpolator = this@DefaultAnimator.interpolator
-        }
-    }
-
-    override fun removeAnimationCleanup(holder: RecyclerView.ViewHolder) {
-        holder.itemView.alpha = 1f
-    }
-
-    override fun addAnimationPrepare(holder: RecyclerView.ViewHolder) {
-        holder.itemView.alpha = 0f
-    }
-
-    override fun addAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            alpha(1f)
-            duration = this@DefaultAnimator.addDuration
-            interpolator = this@DefaultAnimator.interpolator
-        }
-    }
-
-    override fun addAnimationCleanup(holder: RecyclerView.ViewHolder) {
-        holder.itemView.alpha = 1f
-    }
-
-    override fun changeOldAnimation(holder: RecyclerView.ViewHolder, changeInfo: ChangeInfo): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            alpha(0f)
-            translationX(changeInfo.toX.toFloat() - changeInfo.fromX)
-            translationY(changeInfo.toY.toFloat() - changeInfo.fromY)
-            duration = this@DefaultAnimator.changeDuration
-            interpolator = this@DefaultAnimator.interpolator
-        }
-    }
-
-    override fun changeNewAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            alpha(1f)
-            translationX(0f)
-            translationY(0f)
-            duration = this@DefaultAnimator.changeDuration
-            interpolator = this@DefaultAnimator.interpolator
-        }
-    }
-
-    override fun changeAnimationCleanup(holder: RecyclerView.ViewHolder) {
-        holder.itemView.alpha = 1f
-    }
-}
diff --git a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/FadeScaleAnimator.kt b/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/FadeScaleAnimator.kt
deleted file mode 100644
index 9113b0e..0000000
--- a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/FadeScaleAnimator.kt
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright 2018 Allan Wang
- *
- * 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 ca.allanwang.kau.animators
-
-import android.view.View
-import android.view.ViewPropertyAnimator
-import androidx.recyclerview.widget.RecyclerView
-import ca.allanwang.kau.utils.scaleXY
-
-/**
- * Created by Allan Wang on 2017-07-11.
- */
-class FadeScaleAnimatorAdd(val scaleFactor: Float = 1.0f, override var itemDelayFactor: Float = 0.125f) :
-    KauAnimatorAdd {
-
-    override fun animationPrepare(holder: RecyclerView.ViewHolder): View.() -> Unit = {
-        scaleXY = scaleFactor
-        alpha = 0f
-    }
-
-    override fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = {
-        scaleXY(1f)
-        alpha(1f)
-    }
-
-    override fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = {
-        scaleXY = 1f
-        alpha = 1f
-    }
-
-    override fun getDelay(remove: Long, move: Long, change: Long): Long = 0L
-}
-
-class FadeScaleAnimatorRemove(val scaleFactor: Float = 1.0f, override var itemDelayFactor: Float = 0.125f) :
-    KauAnimatorRemove {
-
-    override fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = {
-        scaleXY(scaleFactor)
-        alpha(0f)
-    }
-
-    override fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = {
-        scaleXY = 1f
-        alpha = 1f
-    }
-
-    override fun getDelay(remove: Long, move: Long, change: Long): Long = 0L
-}
-
-class FadeAnimatorChange : KauAnimatorChange {
-
-    override fun changeOldAnimation(
-        holder: RecyclerView.ViewHolder,
-        changeInfo: BaseItemAnimator.ChangeInfo
-    ): ViewPropertyAnimator.() -> Unit = { alpha(0f) }
-
-    override fun changeNewAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = { alpha(1f) }
-
-    override fun changeAnimationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = { alpha = 1f }
-}
diff --git a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/KauAnimator.kt b/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/KauAnimator.kt
deleted file mode 100644
index b9df946..0000000
--- a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/KauAnimator.kt
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright 2018 Allan Wang
- *
- * 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 ca.allanwang.kau.animators
-
-import android.view.ViewPropertyAnimator
-import androidx.recyclerview.widget.RecyclerView
-import ca.allanwang.kau.utils.KAU_BOTTOM
-import ca.allanwang.kau.utils.KAU_RIGHT
-
-/**
- * Created by Allan Wang on 2017-06-27.
- */
-open class KauAnimator(
-    val addAnimator: KauAnimatorAdd = SlideAnimatorAdd(KAU_BOTTOM),
-    val removeAnimator: KauAnimatorRemove = SlideAnimatorRemove(KAU_RIGHT),
-    val changeAnimator: KauAnimatorChange = FadeAnimatorChange()
-) : BaseItemAnimator() {
-
-    open fun startDelay(holder: RecyclerView.ViewHolder, duration: Long, factor: Float) =
-        Math.max(0L, (holder.adapterPosition * duration * factor).toLong())
-
-    override fun removeAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            startDelay = startDelay(holder, removeDuration, removeAnimator.itemDelayFactor)
-            duration = removeDuration
-            interpolator = this@KauAnimator.interpolator
-            removeAnimator.animation(holder)()
-        }
-    }
-
-    override fun removeAnimationCleanup(holder: RecyclerView.ViewHolder) {
-        holder.itemView.apply { removeAnimator.animationCleanup(holder)() }
-    }
-
-    override fun getRemoveDelay(remove: Long, move: Long, change: Long): Long =
-        removeAnimator.getDelay(remove, move, change)
-
-    override fun addAnimationPrepare(holder: RecyclerView.ViewHolder) {
-        holder.itemView.apply { addAnimator.animationPrepare(holder)() }
-    }
-
-    override fun addAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            startDelay = startDelay(holder, addDuration, addAnimator.itemDelayFactor)
-            duration = addDuration
-            interpolator = this@KauAnimator.interpolator
-            addAnimator.animation(holder)()
-        }
-    }
-
-    override fun addAnimationCleanup(holder: RecyclerView.ViewHolder) {
-        holder.itemView.apply { addAnimator.animationCleanup(holder)() }
-    }
-
-    override fun getAddDelay(remove: Long, move: Long, change: Long): Long = addAnimator.getDelay(remove, move, change)
-
-    override fun changeOldAnimation(holder: RecyclerView.ViewHolder, changeInfo: ChangeInfo): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            duration = changeDuration
-            interpolator = this@KauAnimator.interpolator
-            changeAnimator.changeOldAnimation(holder, changeInfo)()
-        }
-    }
-
-    override fun changeNewAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
-        return holder.itemView.animate().apply {
-            duration = changeDuration
-            interpolator = this@KauAnimator.interpolator
-            changeAnimator.changeNewAnimation(holder)()
-        }
-    }
-
-    override fun changeAnimationCleanup(holder: RecyclerView.ViewHolder) {
-        holder.itemView.apply { changeAnimator.changeAnimationCleanup(holder)() }
-    }
-}
diff --git a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/NoAnimator.kt b/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/NoAnimator.kt
deleted file mode 100644
index cca8a25..0000000
--- a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/NoAnimator.kt
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright 2018 Allan Wang
- *
- * 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 ca.allanwang.kau.animators
-
-import android.view.View
-import android.view.ViewPropertyAnimator
-import androidx.recyclerview.widget.RecyclerView
-
-/**
- * Created by Allan Wang on 2017-08-02.
- */
-class NoAnimatorAdd(override var itemDelayFactor: Float = 0f) : KauAnimatorAdd {
-
-    override fun animationPrepare(holder: RecyclerView.ViewHolder): View.() -> Unit = {}
-
-    override fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = {}
-
-    override fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = { }
-
-    override fun getDelay(remove: Long, move: Long, change: Long): Long = 0L
-}
-
-class NoAnimatorRemove(override var itemDelayFactor: Float = 0f) : KauAnimatorRemove {
-
-    override fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = { }
-
-    override fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = {}
-
-    override fun getDelay(remove: Long, move: Long, change: Long): Long = 0L
-}
-
-class NoAnimatorChange : KauAnimatorChange {
-
-    override fun changeOldAnimation(
-        holder: RecyclerView.ViewHolder,
-        changeInfo: BaseItemAnimator.ChangeInfo
-    ): ViewPropertyAnimator.() -> Unit = { }
-
-    override fun changeNewAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = { }
-
-    override fun changeAnimationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = { alpha = 1f }
-}
diff --git a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/SlideAnimator.kt b/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/SlideAnimator.kt
deleted file mode 100644
index 55d5b2e..0000000
--- a/fastadapter/src/main/kotlin/ca/allanwang/kau/animators/SlideAnimator.kt
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright 2018 Allan Wang
- *
- * 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 ca.allanwang.kau.animators
-
-import android.view.View
-import android.view.ViewPropertyAnimator
-import androidx.recyclerview.widget.RecyclerView
-import ca.allanwang.kau.utils.KAU_BOTTOM
-import ca.allanwang.kau.utils.KAU_LEFT
-import ca.allanwang.kau.utils.KAU_RIGHT
-import ca.allanwang.kau.utils.KAU_TOP
-
-/**
- * Created by Allan Wang on 2017-07-11.
- */
-class SlideAnimatorAdd(val fromEdge: Int, val slideFactor: Float = 1f, override var itemDelayFactor: Float = 0.125f) :
-    KauAnimatorAdd {
-
-    override fun animationPrepare(holder: RecyclerView.ViewHolder): View.() -> Unit = {
-        when (fromEdge) {
-            KAU_TOP -> translationY = slideFactor * -height
-            KAU_LEFT -> translationX = slideFactor * -width
-            KAU_BOTTOM -> translationY = slideFactor * height
-            KAU_RIGHT -> translationX = slideFactor * width
-            else -> throw KauAnimatorException("Invalid edge flag used in Slide Animator; use one of KAU_*")
-        }
-        alpha = 0f
-    }
-
-    override fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = {
-        translationY(0f)
-        translationX(0f)
-        alpha(1f)
-    }
-
-    override fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = {
-        translationY = 0f
-        translationX = 0f
-        alpha = 1f
-    }
-
-    override fun getDelay(remove: Long, move: Long, change: Long): Long = 0L
-}
-
-class SlideAnimatorRemove(
-    val fromEdge: Int,
-    val slideFactor: Float = 1f,
-    override var itemDelayFactor: Float = 0.125f
-) : KauAnimatorRemove {
-    override fun animation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator.() -> Unit = {
-        with(holder.itemView) {
-            when (fromEdge) {
-                KAU_TOP -> translationY(slideFactor * -height)
-                KAU_LEFT -> translationX(slideFactor * -width)
-                KAU_BOTTOM -> translationY(slideFactor * height)
-                KAU_RIGHT -> translationX(slideFactor * width)
-                else -> throw KauAnimatorException("Invalid edge flag used in Slide Animator; use one of KAU_*")
-            }
-        }
-        alpha(0f)
-    }
-
-    override fun animationCleanup(holder: RecyclerView.ViewHolder): View.() -> Unit = {
-        translationY = 0f
-        translationX = 0f
-        alpha = 1f
-    }
-
-    override fun getDelay(remove: Long, move: Long, change: Long): Long = 0L
-}