Android Custom SSL Connection with Self signed Cert

SSLCustomSocket.java

/*Create a certificate factory based on X509 standard, this hold the algorithm for most certs*/
            CertificateFactory cf = CertificateFactory.getInstance("X.509");
            /*Get the .pem cert from cert file stored in \app\src\main\res\raw*/
            InputStream caInput = mContext.getResources().openRawResource(R.raw.cert);
            /*Then generate the raw file into certification file*/
            Certificate ca = cf.generateCertificate(caInput);
            /*Close the inputstream. This is important!*/
            caInput.close();

            /*Generate the KeyStore, DO NOT USE "BKS". Just use the default type!*/
            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
            /*Load the default keystore with no parameters*/
            keyStore.load(null, null);
            /*Assign the certification factory to the KeyStore*/
            keyStore.setCertificateEntry("ca", ca);

            /*Create an comfigure algorithm using default Trustmanager based algorithm (RSA)*/
            String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
            /*Get the TrustManagerFactory to implement the KeyStore*/
            TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
            tmf.init(keyStore);
            
            /*Assign the SSLContext for the Protocol of the SSL server, in this case TLSv1.2*/
            Log.d("Protocol 0", "Assigning SSLContext");
            SSLContext sslContext = SSLContext.getInstance("TLSv1.2");
            /*Append it with the TrustManagerFactory that holds the KeyStore which holds the Cert*/
            sslContext.init(null, tmf.getTrustManagers(), null);
            Log.d("Protocol 0", "Assigning SSLSocket Manager");
            /* This one uses ION library for AsyncTask */
            AsyncSSLSocketMiddleware sslMiddleWare = Ion.getDefault(mContext).getHttpClient().getSSLSocketMiddleware();
            sslMiddleWare.setSSLContext(sslContext);
            sslMiddleWare.setTrustManagers(tmf.getTrustManagers());