Android Open Source - FreeFlow Free Flow Event Listener

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License

The source code is released under:

Apache License

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Java Source Code

/*******************************************************************************
 * Copyright 2013 Comcast Cable Communications Management, LLC
 * /* w ww . j  a v a  2s  . c o  m*/
 * 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.comcast.freeflow.core;

import com.comcast.freeflow.layouts.FreeFlowLayout;

/**
 * Interface that all listeners interested in layout change events must
 * implement
 * 
 */
public interface FreeFlowEventListener {

  /**
   * Event dispatched when layout change animations are about to begin.
   */
  public void layoutChangeAnimationsStarting();

  public void layoutChangeAnimationsComplete();

  public void layoutComputed();
  
  /**
   * Dispatched when the underlying data has been changed
   */
  public void dataChanged();

  /**
   * Called when the layout is about to change. Measurements based on the
   * current data provider and current size have been completed.
   * 
   * @param oldLayout
   * @param newLayout
   */
  public void onLayoutChanging(FreeFlowLayout oldLayout, FreeFlowLayout newLayout);
  
  /**
   * Dispatched when onLayout is called and views are laid out. Note that onLayout
   * could be called because of views moving to new positions during a transition 
   * animation, so you are passed that value as a boolean. 
   * 
   * @param areTransitionAnimationsPlaying Whether layout transition animations are 
   * playing
   */
  public void layoutComplete(boolean areTransitionAnimationsPlaying);

  

}

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