public void enablePresenceClickEventHandler(View v) { EditText editTextServer = (EditText) findViewById(R.id.EditTextServer); EditText editTextApplicationKey = (EditText) findViewById(R.id.EditTextApplicationKey); EditText editTextChannel = (EditText) findViewById(R.id.EditTextChannel); CheckBox checkBoxIsCluster = (CheckBox) findViewById(R.id.CheckBoxIsCluster); Ortc.enablePresence( editTextServer.getText().toString(), checkBoxIsCluster.isChecked(), editTextApplicationKey.getText().toString(), defaultPrivateKey, editTextChannel.getText().toString(), true, new OnEnablePresence() { @Override public void run(Exception error, String result) { final Exception exception = error; final String resultText = result; runOnUiThread( new Runnable() { @Override public void run() { if (exception != null) { log(String.format("Error: %s", exception.getMessage())); } else { log(resultText); } } }); } }); }