Android basic authorization

public void onClick(View v) {
Intent in = getIntent();
String filename = in.getStringExtra(KEY_FILENAME);

if(v.getId() == R.id.ButtonTestPlayPause){

try {
String AUDIO_PATH = "http://91.73.25.212:8080/imap/attachments/"+filename;
String username = "admin";
String password = "admin";
String userpassword = username + ":" + password;
byte[] authEncBytes = Base64.encodeBase64(userpassword.getBytes());
String authStringEnc = new String(authEncBytes);

URL url = new URL(AUDIO_PATH);
URLConnection urlConnection = url.openConnection();
urlConnection.setRequestProperty("Authorization", "Basic " + authStringEnc);

Toast.makeText(getApplicationContext(),"play", Toast.LENGTH_LONG).show();
mediaPlayer.setDataSource(AUDIO_PATH);
mediaPlayer.prepareAsync();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}