Sorting with time data in Android ListView

Here is the activity:

 Public classMainactivity extends Activity {PrivateListView Mlistview =NULL; PrivateList<testdate> mlist =NULL; @Override Public voidonCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (R.layout.activity_main); Mlistview= (ListView) This. Findviewbyid (R.id.main_listview); Mlist=NewArraylist<testdate>();        InitData (); Collections.sort (Mlist,NewComparator<testdate>() {            /** * * * @param LHS * @param RHS * @return An integer < 0 if LHS is L             ESS than RHS, 0 if they is * equal, and > 0 if LHS is greater than RHS, compare data size when compared to time */@Override Public intCompare (TestDate lhs, testdate rhs) {Date date1=dateutil.stringtodate (Lhs.getdate ()); Date Date2=dateutil.stringtodate (Rhs.getdate ()); //The Date field is ascending, and the After method is used if you want to descending                if(Date1.before (date2)) {return 1; }                return-1;        }        }); Mlistview.setadapter (NewMyadapter ( This, mlist)); }    Private voidInitData () {Mlist.add (NewTestDate ("2012-12-12 12:30pm","Zhangsan")); Mlist.add (NewTestDate ("2012-12-12 10:20","Lisi")); Mlist.add (NewTestDate ("2012-12-11 10:21","Lisi")); Mlist.add (NewTestDate ("2012-12-11 10:20","Lisi")); Mlist.add (NewTestDate ("2012-12-13 01:03","Wangwu")); Mlist.add (NewTestDate ("2012-12-10 02:04","Zhaoliu")); Mlist.add (NewTestDate ("2012-12-15 23:00","Tianqi")); Mlist.add (NewTestDate ("2012-11-12 22:30","Wangwu")); Mlist.add (NewTestDate ("2012-12-17 08:24","Shimei")); Mlist.add (NewTestDate ("2012-11-10 11:10","Shisanmei")); Mlist.add (NewTestDate ("2012-12-18 16:50","Wangan")); Mlist.add (NewTestDate ("2012-12-19 18:00","Wangjiu")); Mlist.add (NewTestDate ("2012-12-20 19:30","Wusi")); Mlist.add (NewTestDate ("2012-12-20 19:30","Wusi")); }}

Here is the tool class:

 public  class   Dateutil { static   Date stringtodate (String datestring) {parseposition position  = new         Parseposition (0  ); SimpleDateFormat SimpleDateFormat  = new  SimpleDateFormat ( " yyyy-mm-dd hh:mm  "  );        Date dateValue  = Simpledateformat.parse (datestring, position);     return   DateValue; }}

Here is the adapter used by the ListView:

 Public classMyadapter extends Baseadapter {PrivateContext Mcontext; PrivateList<testdate>mlist;  PublicMyadapter (context context, list<testdate>list) {         This. Mcontext =context;  This. mlist =list; } @Override Public intGetCount () {returnMlist! =NULL? Mlist.size ():0; } @Override PublicObject GetItem (intposition) {        returnMlist.Get(position); } @Override Public LongGetitemid (intposition) {        returnposition; } @Override PublicView GetView (intposition, View Convertview, ViewGroup parent) {Viewholder Holder=NULL; if(Convertview = =NULL) {Convertview= (linearlayout) layoutinflater. from(Mcontext). Inflate (R.layout.main_item,NULL); Holder=NewViewholder (); Holder.textview1=(TextView) convertview. Findviewbyid (R.id.item_textview1); HOLDER.TEXTVEIW2=(TextView) convertview. Findviewbyid (R.ID.ITEM_TEXTVIEW2);        Convertview.settag (holder); } Else{Holder=(Viewholder) Convertview.gettag (); } holder.textView1.setText (mlist.Get(position). GetDate ()); Holder.textVeiw2.setText (mlist.Get(position). GetName ()); returnConvertview; }    Private classViewholder {PrivateTextView TextView1; PrivateTextView textVeiw2; }}

The following is an XML file:

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"Xmlns:tools="Http://schemas.android.com/tools"Android:layout_width="match_parent"Android:layout_height="match_parent"> <ListView Android:id="@+id/main_listview"Android:layout_width="match_parent"Android:layout_height="match_parent"Android:layout_centerhorizontal="true"android:layout_centervertical="true"Tools:context=". Mainactivity"/></relativelayout>

<?xml version="1.0"encoding="Utf-8"? ><linearlayout xmlns:android="http://schemas.android.com/apk/res/android"Android:layout_width="match_parent"Android:layout_height="match_parent"android:orientation="Horizontal"> <TextView Android:id="@+id/item_textview1"Android:layout_width="wrap_content"Android:layout_height="wrap_content"android:layout_gravity="center_vertical"Android:layout_margin="10DP"/> <TextView Android:id="@+id/item_textview2"Android:layout_width="wrap_content"Android:layout_height="wrap_content"android:layout_gravity="center_vertical"/></linearlayout>

The following is a JavaBean class:

 Public classTestDate {PrivateString date; PrivateString name;  PublicString getDate () {returndate; }     PublicString GetName () {returnname; }     Publictestdate (string date, string name) { This. Date =date;  This. Name =name; }}

Sorting with time data in Android ListView