apvasanth03 · November 13, 2016 18:27
diff --git a/VolleySingleton.java b/VolleySingleton.java
 package com.vasanth.restapiapplication.httprestapi.volley;

 import android.content.Context;

 import com.android.volley.Request;
 import com.android.volley.RequestQueue;
 import com.android.volley.toolbox.Volley;

 /**
 * Volley Singleton.
 * <p>
 * 1. Responsibility.
 * 1.a. Singleton class used to provide single instance volley components.
 * 1.b. Provides "Request Queue" & allows as to add "Request" to the queue.
 *
 * @author Vasanth
 */
 class VolleySingleton {

    private static VolleySingleton mInstance;
    private RequestQueue mRequestQueue;

    /**
     * Constructor.
     *
     * @param context Application Context.
     */
    private VolleySingleton(final Context context) {
        // getApplicationContext() is key, it keeps you from leaking the
        // Activity or BroadcastReceiver if someone passes one in.
        mRequestQueue = Volley.newRequestQueue(context.getApplicationContext());

    }

    /**
     * Used to singleton instance of VolleySingleton.
     *
     * @param context Context.
     * @return Singleton instance of VolleySingleton.
     */
    static synchronized VolleySingleton getInstance(Context context) {
        if (mInstance == null) {
            mInstance = new VolleySingleton(context);
        }
        return mInstance;
    }

    /**
     * Used to get volley request queue.
     *
     * @return Volley request queue.
     */
    RequestQueue getRequestQueue() {
        return mRequestQueue;
    }

    /**
     * Used to add the request to the request queue.
     *
     * @param request Request to be added to the queue.
     */
    <T> void addToRequestQueue(Request<T> request) {
        getRequestQueue().add(request);
    }

 }
	package com.vasanth.restapiapplication.httprestapi.volley;

	import android.content.Context;

	import com.android.volley.Request;
	import com.android.volley.RequestQueue;
	import com.android.volley.toolbox.Volley;

	/**
	* Volley Singleton.
	* <p>
	* 1. Responsibility.
	* 1.a. Singleton class used to provide single instance volley components.
	* 1.b. Provides "Request Queue" & allows as to add "Request" to the queue.
	*
	* @author Vasanth
	*/
	class VolleySingleton {

	private static VolleySingleton mInstance;
	private RequestQueue mRequestQueue;

	/**
	* Constructor.
	*
	* @param context Application Context.
	*/
	private VolleySingleton(final Context context) {
	// getApplicationContext() is key, it keeps you from leaking the
	// Activity or BroadcastReceiver if someone passes one in.
	mRequestQueue = Volley.newRequestQueue(context.getApplicationContext());

	}

	/**
	* Used to singleton instance of VolleySingleton.
	*
	* @param context Context.
	* @return Singleton instance of VolleySingleton.
	*/
	static synchronized VolleySingleton getInstance(Context context) {
	if (mInstance == null) {
	mInstance = new VolleySingleton(context);
	}
	return mInstance;
	}

	/**
	* Used to get volley request queue.
	*
	* @return Volley request queue.
	*/
	RequestQueue getRequestQueue() {
	return mRequestQueue;
	}

	/**
	* Used to add the request to the request queue.
	*
	* @param request Request to be added to the queue.
	*/
	<T> void addToRequestQueue(Request<T> request) {
	getRequestQueue().add(request);
	}

	}