// Adjust the ActionMode and the menu according to the number of selected bookmarks.
if (numberOfSelectedBookmarks == 1) { // One bookmark is selected.
// List the number of selected bookmarks in the subtitle.
// Adjust the ActionMode and the menu according to the number of selected bookmarks.
if (numberOfSelectedBookmarks == 1) { // One bookmark is selected.
// List the number of selected bookmarks in the subtitle.