package nodomain.myapplication;

enter code here
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.net.URLEncoder;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        int responseCode = 0;

        String db_Username = "root";
        String db_Password = "";
        String db_Name = "testdb";

        try {
            URL oUrl = new URL("http://10.0.0.2/testdb/connection.php");

            HttpURLConnection oHttpUrlConnection = (HttpURLConnection) oUrl.openConnection();

                oHttpUrlConnection.setRequestMethod("POST");

            String dataToSend = encodeURLString("username")
                    + "=" + encodeURLString(db_Username) + "&"

                    + encodeURLString("password")
                    + "=" + encodeURLString(db_Password) + "&"

                    + encodeURLString("database")
                    + "=" + encodeURLString(db_Name);

                oHttpUrlConnection.connect();

                responseCode = oHttpUrlConnection.getResponseCode();


            oHttpUrlConnection.setDoOutput(true);

           oHttpUrlConnection.setDoInput(true);

            OutputStream serverStream = oHttpUrlConnection.getOutputStream();

            BufferedWriter myWriter = new BufferedWriter(new OutputStreamWriter(serverStream, "UTF-8"));

            myWriter.write(dataToSend);


        }catch(MalformedURLException e){

                    }catch(IOException e){

                      Log.i("IO Error from URL", "URL_ERROR");
                      Log.i(e.getMessage(), "ERROR DETAILS");

                    }


            Log.i(Integer.toString(responseCode),"Response:"+responseCode);

        }
    private String encodeURLString(String value) {

        String encodedString = "";
        try {

            encodedString = URLEncoder.encode(value, "UTF-8");

        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return encodedString;
    }

    }