content: package com.rsen.animation.recyclerview.animators;
  
  /**
   * Copyright (C) 2015 Wasabeef
   * <p>
   * 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.support.v4.view.ViewCompat;
  import android.support.v7.widget.RecyclerView;
  import android.view.animation.Interpolator;
  
  public class ScaleInLeftAnimator extends BaseItemAnimator {
  
      public ScaleInLeftAnimator() {
      }
  
      public ScaleInLeftAnimator(Interpolator interpolator) {
          mInterpolator = interpolator;
      }
  
      @Override
      protected void preAnimateRemoveImpl(RecyclerView.ViewHolder holder) {
          ViewCompat.setPivotX(holder.itemView, 0);
      }
  
      @Override
      protected void animateRemoveImpl(final RecyclerView.ViewHolder holder) {
          ViewCompat.animate(holder.itemView)
                  .scaleX(0)
                  .scaleY(0)
                  .setDuration(getRemoveDuration())
                  .setInterpolator(mInterpolator)
                  .setListener(new DefaultRemoveVpaListener(holder))
                  .setStartDelay(getRemoveDelay(holder))
                  .start();
      }
  
      @Override
      protected void preAnimateAddImpl(RecyclerView.ViewHolder holder) {
          ViewCompat.setPivotX(holder.itemView, 0);
          ViewCompat.setScaleX(holder.itemView, 0);
          ViewCompat.setScaleY(holder.itemView, 0);
      }
  
      @Override
      protected void animateAddImpl(final RecyclerView.ViewHolder holder) {
          ViewCompat.animate(holder.itemView)
                  .scaleX(1)
                  .scaleY(1)
                  .setDuration(getAddDuration())
                  .setInterpolator(mInterpolator)
                  .setListener(new DefaultAddVpaListener(holder))
                  .setStartDelay(getAddDelay(holder))
                  .start();
      }
  }
  