Android Open Source - Billy Bitmap Lru Cache

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License

The source code is released under:

GNU General Public License

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Java Source Code

package com.vibin.billy;
/*from  w w  w  . j a v a 2 s. c o m*/
import android.graphics.Bitmap;
import android.support.v4.util.LruCache;
import android.util.Log;

import com.android.volley.toolbox.ImageLoader;

/**
 * Basic LRU Memory cache.
 *
 * @author Trey Robinson
 */
public class BitmapLruCache
        extends LruCache<String, Bitmap>
        implements ImageLoader.ImageCache {

    private static final String TAG = BitmapLruCache.class.getSimpleName();

    public BitmapLruCache() {
        this(getDefaultLruCacheSize());
    }

    public BitmapLruCache(int sizeInKiloBytes) {
        super(sizeInKiloBytes);
    }


    @Override
    protected int sizeOf(String key, Bitmap value) {
        return value.getRowBytes() * value.getHeight() / 1024;
    }

    @Override
    public Bitmap getBitmap(String url) {
        //Log.d(TAG, "Grab " + url);
        return get(url);
    }

    @Override
    public void putBitmap(String url, Bitmap bitmap) {
        //Log.d(TAG, "Put " + url);
        put(url, bitmap);
    }

    public static int getDefaultLruCacheSize() {
        final int maxMemory =
                (int) (Runtime.getRuntime().maxMemory() / 1024);
        final int cacheSize = maxMemory / 8;

        Log.d(TAG, "cachesize is " + cacheSize);

        Log.d(TAG, cacheSize + " is cache Size");

        return cacheSize;
    }
}

Java Source Code List