JAva基本ソート

 android ，       HashMap，   list  HashMap，   List           ，        ，         ：

mainメソッドに次のものがある場合:

public List<HashMap<String, Object>> listitem;
       listitem.add(new HashMap("name","one"));
       listitem.add(new HashMap("name","  "));
       listitem.add(new HashMap("name","  "));
       listitem.add(new HashMap("name","  "));
       listitem.add(new HashMap("name","two"));
      
       Comparent comparent = new Comparent();
       Collections.sort(listitem, comparent);

ここで、Comparent.javaファイルで定義する方法は次のとおりです.

import java.text.Collator;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Locale;
public class Comparent implements  Comparator<Object> {
 @SuppressWarnings("unchecked")
 @Override
 public int compare(Object arg0, Object arg1) {
  HashMap<String, Object> name1 = (HashMap<String, Object>)arg0;
  HashMap<String, Object> name2 = (HashMap<String, Object>)arg1;
  Collator ca = Collator.getInstance(Locale.CHINA);
  int flags = 0;
  if (ca.compare((String) name1.get("name"), (String)name2.get("name")) < 0) {
   flags = -1;
  }
  else if(ca.compare((String) name1.get("name"), (String)name2.get("name")) > 0) {
   flags = 1;
  }
  else {
   flags = 0;
  }
  return flags;
 }
}