Android Open Source - FirstTipCalc View Traverser

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Back to project page FirstTipCalc.

License

The source code is released under:

Apache License

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Java Source Code

/**
 * Copyright (c) 2014 Michal Dabski/*from w  ww  .  jav a  2  s.  c  o  m*/
 *   
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * Copyright 2014 ReliQ Artz
 *
 * 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.reliqartz.firsttipcalc.utils;

import android.view.View;
import android.view.ViewGroup;

/***
 * Traverse layout tree one view at a time
 * @author Michal
 */
public class ViewTraverser {
    
  private final View root;
  
  public ViewTraverser(View root)
  {
    this.root = root;
  }
  
  public void traverse(ForeachAction<View> foreach)
  {
    traverse(root, foreach);
  }
  
  protected void traverse(View root, ForeachAction<View> foreach)
  {
    foreach.onElement(root);
    if (root instanceof ViewGroup)
    {
      ViewGroup viewGroup = (ViewGroup) root;
      for (int i = 0; i < viewGroup.getChildCount(); i++)
      {
        traverse(viewGroup.getChildAt(i), foreach);
      }
    }
  }
  
  /**
   * Action to be performed on each object.
   * @author Michal
   * @param <T>
   */
  public interface ForeachAction<T> {
    void onElement(T element);
  }
}

Java Source Code List