Colors in AlertDialog

I wanted to use colors in AlertDialog and I found this post. It work great although the solution there is not full (there are features of AlertDialog that will not work). One issue with that post - the code & XML there can not be easily copied.

Here's that code again, with some changes/improvements:
* Renamed the class name to ColorAlertDialog
* ColorAlertDialog.Builder does not inherits AlertDialog.Builder. This caused some confusion (you could call function but they didn't do anything).
* Added functionality to ColorAlertDialog.Builder
* Fixed force-close on Android 1.5

Class (I've renamed the class):

import java.util.ArrayList;
import java.util.Iterator;

import android.app.AlertDialog;
import android.content.Context;
import android.content.res.TypedArray;
import android.content.res.Resources.Theme;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.Drawable;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;

public class ColorAlertDialog extends AlertDialog {
 private static int NONE = -1;
 private int tint = NONE;

 /**
 * @param context
 * @param theme
 */
 protected ColorAlertDialog(Context context) {
  super(context);
  init();
 }

 /**
 * @param context
 * @param theme
 */
 protected ColorAlertDialog(Context context, int theme) {
  super(context, theme);
  init();
 }

 /**
 * 
 */
 private void init() {      
  final Theme theme = getContext().getTheme();
  final TypedArray attrs = theme.obtainStyledAttributes(new int[] { android.R.attr.tint });
  tint = attrs.getColor(0, NONE);
 }

 /* (non-Javadoc)
 * @see android.app.Dialog#show()
 */
 @Override
 public void show() {
  super.show();
  setTint(tint);
 }

 /**
 * @param tint
 */
 public void setTint(int tint) {
  this.tint = tint;

  if ( tint != NONE ) {
   Iterator vi = iterator(android.R.id.content);
   while ( vi.hasNext() ) {
    tintView(vi.next(), tint);
   }
  }
 }

 /**
 * Set the {@link tint} color for the {@link View}
 * 
 * @param v the {@link View} to change the tint
 * @param tint color tint
 */
 private static void tintView(final View v, final int tint) {
  if ( v != null ) {
   final Mode mode = Mode.SRC_ATOP;
   if ( v instanceof ImageView ) {
    final Drawable d = ((ImageView)v).getDrawable();
    if ( d != null ) {
     try {
     d.mutate().setColorFilter(tint, mode);
     } catch (Exception ex) {
      // Patch for Android 1.5
     }
    }
   }
   else {
    final Drawable d = v.getBackground();
    if ( d != null ) {
     d.setColorFilter(tint, mode);
    }
   }
  }
 }

 /**
 * @param button
 */
 public void setCancelButton(Button button) {
  button.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    cancel();
   }
  });
 }

 /**
 * @param button
 */
 public void setPositiveButton(Button button) { 
  button.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    dismiss();  
   }
  });
 }
 
 /**
 * Return a {@link ChildrenIterator} starting at the {@link ViewGroup}
 * identified by the specified resource id.
 *  
 * @param res resource id of the {@link ViewGroup} to start the iteration
 * @return iterator
 */
 public Iterator iterator(int res) {
  final ViewGroup vg = (ViewGroup)findViewById(res);
  return new ChildrenIterator(vg);
 }

 public static class Builder {
  private ColorAlertDialog dialog;

  public Builder(Context context) {
   dialog = new ColorAlertDialog(context);
  }

  public Builder(Context context, int theme) {
   dialog = new ColorAlertDialog(context, theme);
  }

  public ColorAlertDialog create() {
   return dialog;
  }

  public Builder setMessage(CharSequence message) {
   dialog.setMessage(message);
   return this;
  }

  public Builder setTitle(CharSequence title) {
   dialog.setTitle(title);
   return this;
  }

  public Builder setPositiveButton(int resId, OnClickListener listener) {
   return setPositiveButton(dialog.getContext().getString(resId), listener);
  }
  
  public Builder setPositiveButton(CharSequence text, OnClickListener listener) {
   dialog.setButton(BUTTON_POSITIVE, text, listener);
   return this;
  }

  public Builder setNegativeButton(int resId, OnClickListener listener) {
   return setNegativeButton(dialog.getContext().getString(resId), listener);
  }

  public Builder setNegativeButton(CharSequence text, OnClickListener listener) {
   dialog.setButton(BUTTON_NEGATIVE, text, listener);
   return this;
  }
    
  public Builder setIcon(int iconId) {
   dialog.setIcon(iconId);
   return this;
  }
  
  public Builder setCancelable(boolean flag) {
   dialog.setCancelable(flag);
   return this;   
  }
  
  public ColorAlertDialog show() {
   dialog.show();
   return dialog;
  }
 }
 
 public class ChildrenIterator implements Iterator {
  ArrayList list;
  private int i;
  
  public ChildrenIterator(ViewGroup vg) {
   super();
        
   if ( vg == null ) 
    throw new RuntimeException("ChildrenIterator needs a ViewGroup != null to find its children");

   init();
   findChildrenAndAddToList(vg, list);
  }
     
  private void init() {
   list = new ArrayList();
   i = 0;         
  }
     
  @Override
  public boolean hasNext() {
   return ( i < list.size() );
  }
  
  @Override
  public V next() {
   return list.get(i++);
  }
  
  @Override
  public void remove() {
   list.remove(i);
  }
     
  @SuppressWarnings("unchecked")
  private void findChildrenAndAddToList(final ViewGroup root, final ArrayList list) {
   for (int i=0; i < root.getChildCount(); i++) {
    V v = (V)root.getChildAt(i);
    list.add(v);
    if ( v instanceof ViewGroup ) 
     findChildrenAndAddToList((ViewGroup)v, list);
                
   }       
  }
 } 
}

And the styles (put in an XML file under the 'res/values' folder):

 
 
 
 
    
 
 
 
 
 #88FF0000
 #880000FF
 #88FFFF00
 #88995f86
 #aaffbf00
 #88ff33cc
 #0000