Volley + OkHttp

OkHttpStack.java

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

import javax.net.ssl.SSLSocketFactory;

import com.android.volley.toolbox.HurlStack;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.OkUrlFactory;

public class OkHttpStack extends HurlStack {
	
	private static final String HEADER_USER_AGENT = "User-Agent";

	private final String mUserAgent;
	private final OkUrlFactory mOkUrlFactory;

	public OkHttpStack(String userAgent, UrlRewriter urlRewriter, SSLSocketFactory sslSocketFactory) {
		super(urlRewriter);

		OkHttpClient okHttpClient = new OkHttpClient();
		okHttpClient.setSslSocketFactory(sslSocketFactory);

		mOkUrlFactory = new OkUrlFactory(okHttpClient);
		mUserAgent = userAgent;
	}

	@Override
	protected HttpURLConnection createConnection(URL url) throws IOException {
		HttpURLConnection connection = mOkUrlFactory.open(url);
		connection.setRequestProperty(HEADER_USER_AGENT, mUserAgent);
		return connection;
	}

}