Bitmap cache by WeakHashMap : Bitmap « 2D Graphics « Android






  1. Android
  2. 2D Graphics
  3. Bitmap

Bitmap cache by WeakHashMap

    
/*
 * Copyright (C) 2009 Teleca Poland Sp. z o.o. <android@teleca.com>
 *
 * 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.
 */

import java.util.WeakHashMap;

import android.graphics.Bitmap;

/**
 * Caches downloaded images, saves bandwidth and user's
 * packets
 * 
 * @author Lukasz Wisniewski
 */
public class ImageCache extends WeakHashMap<String, Bitmap> {

  private static final long serialVersionUID = 1L;
  
  public boolean isCached(String url){
    return containsKey(url) && get(url) != null;
  }

}








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