public class LoginActivity extends AppCompatActivity {

private static String response, username, password, fdid;
private static HttpClient httpclient;
EditText fdidTextBox, usernameTextBox, passwordTextBox;
Button loginButton;
User user;

public static final MediaType JSON
        = MediaType.parse("application/json; charset=utf-8");

OkHttpClient client = new OkHttpClient();

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


    fdidTextBox = (EditText) findViewById(R.id.fdidEditText);
    usernameTextBox = (EditText) findViewById(R.id.usernameEditText);
    passwordTextBox = (EditText) findViewById(R.id.passwordEditText);

    loginButton = (Button) findViewById(R.id.login_button);
    //only 5 digits for fdid
    int maxLength = 5;
    fdidTextBox.setFilters(new InputFilter[]{new InputFilter.LengthFilter(maxLength) {
    }});
    loginButtonListener();


}




private void loginButtonListener() {
    username = usernameTextBox.getText().toString();
    password = passwordTextBox.getText().toString();
    fdid = fdidTextBox.getText().toString();
    loginButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            makePostRequestOnNewThread();

        }
    });

}
private void makePostRequestOnNewThread() {
    Thread t = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                //getUrlContent("http://fireeport.com/api/login");
                postToServer("http://fireeport.com/api/login");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });
    t.start();
}

String getUrlContent(String url) throws IOException {
        Request request = new Request.Builder()
                .url(url)
                .build();

        Response response = client.newCall(request).execute();
    Log.d("result",response.body().string());
        return response.body().string();

    }

String postToServer(String url) throws IOException {
    RequestBody formBody=new FormBody.Builder().add("username",username).add("password",password).add("fdid",fdid).build();
    Request request = new Request.Builder()
            .url(url).post(formBody)
            .build();

    Response response = client.newCall(request).execute();
    Log.d("result",response.body().string());
    return response.body().string();
}