+ if (backgroundTaskCountObserver == null) {
+ Log.d("rtl", "creating background task count observer");
+ Data.backgroundTaskCount.addObserver(backgroundTaskCountObserver = new Observer() {
+ @Override
+ public void update(Observable o, Object arg) {
+ mActivity.runOnUiThread(() -> {
+ int cnt = Data.backgroundTaskCount.get();
+ Log.d("trl", String.format("background task count changed to %d", cnt));
+ swiper.setRefreshing(cnt > 0);
+ });
+ }
+ });
+ }