content: /*
   * Copyright (C) 2013 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 android.transition;
  
  import android.annotation.NonNull;
  import android.util.ArrayMap;
  import android.view.View;
  import android.view.ViewGroup;
  
  import java.util.ArrayList;
  import java.util.Map;
  
  /**
   * Data structure which holds cached values for the transition.
   * The view field is the target which all of the values pertain to.
   * The values field is a map which holds information for fields
   * according to names selected by the transitions. These names should
   * be unique to avoid clobbering values stored by other transitions,
   * such as the convention project:transition_name:property_name. For
   * example, the platform might store a property "alpha" in a transition
   * "Fader" as "android:fader:alpha".
   *
   * <p>These values are cached during the
   * {@link Transition#captureStartValues(TransitionValues)}
   * capture} phases of a scene change, once when the start values are captured
   * and again when the end values are captured. These start/end values are then
   * passed into the transitions via the
   * for {@link Transition#createAnimator(ViewGroup, TransitionValues, TransitionValues)}
   * method.</p>
   */
  public class TransitionValues {
  
      /** @deprecated Use {@link #TransitionValues(View)} instead */
      @Deprecated
      public TransitionValues() {
      }
  
      public TransitionValues(@NonNull View view) {
          this.view = view;
      }
  
      /**
       * The View with these values
       */
      @SuppressWarnings("NullableProblems") // Can't make it final because of deprecated constructor.
      @NonNull
      public View view;
  
      /**
       * The set of values tracked by transitions for this scene
       */
      @NonNull
      public final Map<String, Object> values = new ArrayMap<String, Object>();
  
      /**
       * The Transitions that targeted this view.
       */
      @NonNull
      final ArrayList<Transition> targetedTransitions = new ArrayList<Transition>();
  
      @Override
      public boolean equals(Object other) {
          if (other instanceof TransitionValues) {
              if (view == ((TransitionValues) other).view) {
                  if (values.equals(((TransitionValues) other).values)) {
                      return true;
                  }
              }
          }
          return false;
      }
  
      @Override
      public int hashCode() {
          return 31*view.hashCode() + values.hashCode();
      }
  
      @Override
      public String toString() {
          String returnValue = "TransitionValues@" + Integer.toHexString(hashCode()) + ":\n";
          returnValue += "    view = " + view + "\n";
          returnValue += "    values:";
          for (String s : values.keySet()) {
              returnValue += "    " + s + ": " + values.get(s) + "\n";
          }
          return returnValue;
      }
  }