Google Volley starter Kit

VolleySingleton.java

package com.example.ikram.bathak.network;


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

import com.android.volley.RequestQueue;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.Volley;
import com.example.ikram.bathak.MyApplication;

public class VolleySingleton {

    private static VolleySingleton mInstance = null;
    private RequestQueue mRequestQueue;
    private ImageLoader mImageLoader;

    private VolleySingleton(){
        mRequestQueue = Volley.newRequestQueue(MyApplication.getAppContext());
        mImageLoader = new ImageLoader(this.mRequestQueue, new ImageLoader.ImageCache() {
            private final LruCache<String, Bitmap> mCache = new LruCache<String, Bitmap>(getDefaultLruCacheSize());
            public void putBitmap(String url, Bitmap bitmap) {
                mCache.put(url, bitmap);
            }
            public Bitmap getBitmap(String url) {
                return mCache.get(url);
            }
        });
    }

    public static VolleySingleton getInstance(){
        if(mInstance == null){
            mInstance = new VolleySingleton();
        }
        return mInstance;
    }

    public RequestQueue getRequestQueue(){
        return this.mRequestQueue;
    }

    public ImageLoader getImageLoader(){
        return this.mImageLoader;
    }

    private static int getDefaultLruCacheSize() {
        final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
        return maxMemory / 8;
    }

}

WebClient.java

package com.example.ikram.bathak.network;

import android.util.Log;

import com.android.volley.DefaultRetryPolicy;
import com.android.volley.Response;
import com.android.volley.toolbox.StringRequest;


public class WebClient extends StringRequest {

    Priority priorityRequest = Priority.NORMAL;


    public  WebClient(String url, Response.Listener<String> listener, Response.ErrorListener errorListener) {
        super(url, listener, errorListener);
        setRetryPolicy(new DefaultRetryPolicy(5000 , 3 , DefaultRetryPolicy.DEFAULT_BACKOFF_MULT  ) );
        VolleySingleton.getInstance().getRequestQueue().add(this);
    }


    public WebClient(String url, Response.Listener<String> listener, Response.ErrorListener errorListener , Priority priority)
    {
        super(url, listener, errorListener);
        setPriority(priority);
        setRetryPolicy(new DefaultRetryPolicy(5000, 3, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
        VolleySingleton.getInstance().getRequestQueue().add(this);
    }


    @Override
    protected void deliverResponse(String response) {
        super.deliverResponse(response);
        Log.i("Volley Request:", priorityRequest.toString() + " => " + getUrl());
    }



    public void setPriority(Priority priority)
    {
        priorityRequest = priority;
    }


    /**
     * Returns the {@link Priority} of this request; {@link Priority#NORMAL} by default.
     */
    @Override
    public Priority getPriority() {
        return priorityRequest;
    }



}

/*


new WebClient( URL.buildUrl( WebUrl.POST_URL, "20", null, null, postsDataSource.getLastPostWebIdByType( "video" , false , null ), null, "video" ), new Response.Listener<String>()
            {
                @Override
                public void onResponse( String response )
                {
                    final String r = response;
                    new Thread(new Runnable() {
                        @Override
                        public void run() {
                            List<Post> postList ;
                            postList = WebJSONParser.postParseFeed( r );
                            postsDataSource.insertPosts(postList);
                            startActivityRequestDone();
                        }
                    }).start();


                }

            }, new Response.ErrorListener()
            {
                @Override
                public void onErrorResponse( VolleyError error )
                {
                    Log.d( TAG, "POST Request failed " + error.getMessage() );
                    startActivityRequestDone();
                }
            }, Request.Priority.LOW ).setTag(TAG);

protected void onPause()
    {
        super.onPause();
        postsDataSource.close();
        VolleySingleton.getInstance().getRequestQueue().cancelAll(TAG);
    }

*/