com.feedback2345sdk.cache.MemoryCache.java Source code

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Here is the source code for com.feedback2345sdk.cache.MemoryCache.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2015 bboyfeiyu@gmail.com, Inc
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.feedback2345sdk.cache;

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

import com.feedback2345sdk.request.BitmapRequest;

/**
 * ,keyuri,
 * 
 * @author mrsimple
 */
public class MemoryCache implements BitmapCache {

    private LruCache<String, Bitmap> mMemeryCache;

    public MemoryCache() {

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

        // ?4?
        final int cacheSize = maxMemory / 4;
        mMemeryCache = new LruCache<String, Bitmap>(cacheSize) {

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

    }

    @Override
    public Bitmap get(BitmapRequest key) {
        return mMemeryCache.get(key.imageUri);
    }

    @Override
    public void put(BitmapRequest key, Bitmap value) {
        mMemeryCache.put(key.imageUri, value);
    }

    @Override
    public void remove(BitmapRequest key) {
        mMemeryCache.remove(key.imageUri);
    }

}