protected final void setExplorerMode(final boolean explorerMode) {
MainActivity act = (MainActivity) getActivity();
if (act == null) return;
PreferenceManager.getDefaultSharedPreferences(act)
.edit()
.putBoolean("explorer_mode", explorerMode)
.commit();
reload();
act.getFragmentManager().popBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
act.setTitle(mPresenter.getTitle());
act.invalidateOptionsMenu();
act.invalidateCrumbs();
}
