MyFragment.java

public class MyFragment {
        boolean loaded;
        private void maybeLoad() {
            if (!loaded && getUserVisibleHint()) {
                loaded = true;
                loadMyData();
            }
        }

        @Override
        public void onViewCreated(View view, Bundle savedInstanceState) {
            super.onViewCreated(view, savedInstanceState);
            maybeLoad();
        }

        @Override
        public void setUserVisibleHint(boolean isVisibleToUser) {
            super.setUserVisibleHint(isVisibleToUser);
            maybeLoad();
        }
}