BitmapCache.java

package com.amlogic.tzr.charismatic_yichang.Tool;

import android.graphics.Bitmap;
import android.support.v4.util.LruCache;

import com.android.volley.toolbox.ImageLoader;

/**
 * Created by Administrator on 2015/6/21.
 */
public class BitmapCache implements ImageLoader.ImageCache {

    private LruCache<String, Bitmap> mCache;
    public static int getDefaultLruCacheSize() {

        final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);

        final int cacheSize = maxMemory / 8;

        return cacheSize;
    }

    public BitmapCache() {
        int maxSize = getDefaultLruCacheSize();
        mCache = new LruCache<String, Bitmap>(maxSize) {
            @Override
            protected int sizeOf(String key, Bitmap bitmap) {
                return bitmap.getRowBytes() * bitmap.getHeight();
            }
        };
    }

    @Override
    public Bitmap getBitmap(String url) {
        return mCache.get(url);
    }

    @Override
    public void putBitmap(String url, Bitmap bitmap) {
        mCache.put(url, bitmap);
    }
}