private Map
     
       mapDate;//正序mapDate=new TreeMap
      
       (new Comparator
       
        () {            @Override            public int compare(String lhs, String rhs) {                // TODO Auto-generated method stub                return lhs.compareTo(rhs);            }        });//倒序mapDate=new TreeMap
        
         (new Comparator
         
          () {            @Override            public int compare(String lhs, String rhs) {                // TODO Auto-generated method stub                return rhs.compareTo(lhs);            }        }); List
          
            mSections=new mSections = new ArrayList
           
            (); Collections.sort(mSections);