Dumps the hierarchy of a view - Android User Interface

Android examples for User Interface:View Parent

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Description

Dumps the hierarchy of a view

Demo Code

import java.lang.reflect.Field;
import java.util.HashMap;

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

public class Main {
  private static HashMap<Integer, String> mIdValues;

  /**/*from  www.  j a  va2 s. co  m*/
   * Dumps the hierarchy of a view
   * 
   * @param R
   *          The ID reference of your project, must be R.id.class
   * @param depth
   *          The initial tab depth (usually 0)
   * @param parent
   *          The root view
   * @return A line separated, tabbed structure of the view's hierarchy
   */
  public static String dump(Class R, int depth, View parent) {
    if (mIdValues == null) {
      getIdValues(R);
    }

    String retStr = "";
    retStr += "\n" + depth + " " + parent.toString();

    if (mIdValues.get(parent.getId()) != null) {
      retStr += " id: R.id." + mIdValues.get(parent.getId());
    }

    if (parent instanceof ViewGroup) {
      int childCount = ((ViewGroup) parent).getChildCount();

      for (int index = 0; index < childCount; index++) {
        retStr += dump(R, depth + 1, ((ViewGroup) parent).getChildAt(index));
      }
    }

    return retStr;
  }

  private static void getIdValues(Class R) {
    mIdValues = new HashMap<Integer, String>();
    for (Field f : R.getFields()) {
      try {
        mIdValues.put((Integer) R.getField(f.getName()).get(Integer.class),
            f.getName());
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  }
}

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