I show my infinte progress bar in the action bar \"as usual\":
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); ... setProgressBarIndeterminateVisibi
in case, if somebody else faced the same problem,
to disable editing the text use: EditText.setFocusable(false);
EditText.setFocusable(false);
to enable editing: EditText.setFocusableInTouchMode(true);
EditText.setFocusableInTouchMode(true);