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/*******************************************************************************
 * Copyright 2011-2013 Sergey Tarasevich
 *
 * 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.nostra13.universalimageloader.core.display;

import android.graphics.Bitmap;
import android.widget.ImageView;

/**
 * Displays {@link Bitmap} in {@link ImageView}. Implementations can apply some changes to Bitmap or any animation for
 * displaying Bitmap.

 * Implementations have to be thread-safe.
 * 
 * @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
 * @since 1.5.6
 */
public interface BitmapDisplayer {
	/**
	 * Display bitmap in {@link ImageView}. Displayed bitmap should be returned.

	 * NOTE: This method is called on UI thread so it's strongly recommended not to do any heavy work in it.
	 * 
	 * @param bitmap Source bitmap
	 * @param imageView {@linkplain ImageView Image view} to display Bitmap
	 * @return Bitmap which was displayed in {@link ImageView}
	 */
	Bitmap display(Bitmap bitmap, ImageView imageView);
}