Collections.sort(list,new Comparator<Basedata>() {
@Override
public int compare(Basedata o1, Basedata o2) {
String name1 = PinYinUtil.getPingYin(o1.getName()).substring(0, 1).toUpperCase();
String name2 = PinYinUtil.getPingYin(o2.getName()).substring(0, 1).toUpperCase();
//按照首字母升序
return name1.compareTo(name2);
}
});