java - Remove spaces between the buttons in custom GridView programmatically -


i'm trying remove vertical spaces between buttons on bottom right corner, programmatically. i've created custom gridview represent buttons, , part of relative layout.

enter image description here

my code:

public class buttonsgridviewoptions extends gridview {     public buttonsgridviewoptions(context context, attributeset attrs){         super(context, attrs);         buttonsgridviewadapter gridviewadapter = new buttonsgridviewadapter(context);         setadapter(gridviewadapter);     }      private class buttonsgridviewadapter extends baseadapter {          private context context;          @override         public view getview(int position, view convertview, viewgroup parent) {             view v = convertview;             if(v == null){                 layoutinflater inflater = ((activity)context).getlayoutinflater();                 v = inflater.inflate(r.layout.button, parent, false);                 numberbutton btn;                 btn = (numberbutton) v;                 btn.settextsize(10);                 btn.setid(position);                  switch (position) {                     case 0: {                         btn.settext("del");                         btn.setnumber(0, 9);                         break;                     }                     case 1: {                         btn.settext("undo");                         btn.setnumber(0, 10);                         break;                     }                     case 2: {                         btn.settext("redo");                         btn.setnumber(0, 11);                         break;                     }                     case 3: {                         btn.settext("draft");                         btn.setnumber(0, 12);                         break;                     }                 }                 return btn;             }             return v;         }     } }


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