ProfilePictureVolleyRequest.java

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

import com.android.volley.Cache;
import com.android.volley.Network;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.BasicNetwork;
import com.android.volley.toolbox.DiskBasedCache;
import com.android.volley.toolbox.HurlStack;
import com.android.volley.toolbox.ImageLoader;


public class ProfilePictureVolleyRequest {

    private Context mContext;
    private RequestQueue mRequestQueue;
    private ImageLoader mImageLoader;


    public ProfilePictureVolleyRequest(Context context, User user) {
        this.mContext = context;
        this.mRequestQueue = getRequestQueue();

        mImageLoader = new ProfilePictureLoader(user, mRequestQueue, new ImageLoader.ImageCache() {
                private final LruCache<String, Bitmap> cache = new LruCache<>(20);

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

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

    private RequestQueue getRequestQueue() {
        if (mRequestQueue == null) {
            Cache cache = new DiskBasedCache(mContext.getCacheDir(), 10 * 1024 * 1024);
            Network network = new BasicNetwork(
                    new HurlStack(null, S3Helper.getSocketFactory(mContext)));
            mRequestQueue = new RequestQueue(cache, network);
            mRequestQueue.start();
        }
        return mRequestQueue;
    }

    public ImageLoader getImageLoader() {
        return mImageLoader;
    }

}