@Override public boolean onEditorAction(TextView textView, int actionId, KeyEvent keyEvent) { Log.d(TAG, "onEditorAction: actionId: " + actionId + ", keyEvent: " + keyEvent); if ((actionId == EditorInfo.IME_ACTION_DONE) || ((keyEvent != null) && (keyEvent.getKeyCode() == KeyEvent.KEYCODE_ENTER))) { Log.d(TAG, "onEditorAction: IME_ACTION_DONE || KEYCODE_ENTER"); String input = textView.getText().toString().trim(); if (input.length() > 0) { String result = ""; try { result += calculator.calculate(input); } catch (Exception e) { result = "no result (" + e.getMessage() + ")"; } if (listAdapter.getCount() > 0) { listAdapter.add(""); } listAdapter.add(input + " ="); if (input.indexOf("@") > -1) { listAdapter.add(calculator.getEquation() + " ="); } listAdapter.add(result); listAdapter.notifyDataSetChanged(); inputView.endBatchEdit(); inputView.setText(""); hideKeyboard(); } } return false; }