Android hack to change the colour of the divider line in a Dialog

DialogHack.java

/*
 * Copyright (C) 2014 Glowworm Software
 *
 * 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 lib.widget;

import android.app.Dialog;
import android.content.res.Resources;
import android.view.View;


/**
 * Helper class that uses a HACK to change the divider line in a dialog. </p>
 * 
 * A better method would be to use a library such as
 * https://github.com/inmite/android-styled-dialogs.
 */
public class DialogHack
{

	/**
	 * HACK to change the colour of the divider line. Must be called on a dialog that has already
	 * been shown.
	 */
	public static void setTitleDividerColor(Dialog dialog, int color)
	{
		Resources resources = dialog.getContext().getResources();
		int dividerId = resources.getIdentifier("android:id/titleDivider", null, null);
		View divider = dialog.findViewById(dividerId);
		if (divider != null)
		{
			divider.setBackgroundColor(color);
		}
	}

}

Helper class that uses a HACK to change the divider line in a dialog.

A better method would be to use a library such as https://github.com/inmite/android-styled-dialogs.