Android: listview: convertview. settag () to set data

Void Android. View. View. settag (Object Tag) Public void Settag (Object Tag) Since: API Level 1

Sets the tag associated with this view. A tag can be used to mark a view in its hierarchy and does not have to be unique within the hierarchy. tags can also be used to store data within a view without resorting to another data structure.

Parameters An object to tag the view

Also see

• Gettag ()
• Settag (INT,
Object)

     Public View getview ( Int  Position, view convertview, viewgroup parent ){  Final   Int Cc = Position; viewholder holder = Null  ;  If (Convertview = Null  ) {Holder =New  Viewholder (); convertview = Minflater. Inflate (R. layout. itemrow, Null  ); Holder. tagcolor = (Imageview) convertview. findviewbyid (R. Id. itemrowiamge); Holder. itemname = (Textview) convertview. findviewbyid (R. Id. itemrowtext); Holder. CB = (Checkbox) convertview. findviewbyid (R. Id. itemrowcb); convertview. settag (holder );}  Else  {Holder =(Viewholder) convertview. gettag ();}  //  Obtain the data filled in viewholder. Holder. tagcolor. setbackgroundresource (integer) itemlist. Get (position). Get ("IMG" ); Holder. itemname. settext (string) itemlist. Get (position). Get ( "Itemname" ); Holder. CKD = (String) itemlist. Get (position). Get ("checked" );  //  The checkbox key listening function in a single project Holder. CB. setonclicklistener ( New View. onclicklistener (){  Public   Void  Onclick (view v) {SETC (CC );  //  Call the function to change the status after being pressed.  }});  If (Holder. CKD. Equals ("T" ) Holder. CB. setchecked (  True  );  Else  Holder. CB. setchecked ( False  );  Return  Convertview ;} 

Set a holder class

 Import  Android. widget. checkbox;  Import  Android. widget. imageview;  Import  Android. widget. textview;  //  The viewholder class is used to store the data required by each project.  Public   Class  Viewholder { Public Imageview tagcolor; //  Images in a single project      Public Textview itemname; //  Text in a single project      Public Checkbox CB; //  Checkbox in a single project      Public String CKD; //  String variable used to identify the checkbox status in a single project }

You can.