android - RecyclerView GridLayoutManager: change column width -

i have recyclerview , gridlayoutmanager. columns width equal want first column 80dp width. possible?

example: recyclerview width 5 columns

final columnscount = 5;  recyclerview.width = 500dp  column0.width = 80dp  column 1-2-3-4 width = (recyclerview.width - column0.width) / columnscount 

any advice?

edit: code

public class testrecyclerviewadapter extends recyclerview.adapter<recyclerview.viewholder> {     private static final int view_type_start = 0;     private static final int view_type_progress_item = 1;     private layoutinflater inflater;      public testrecyclerviewadapter(context context) {         this.inflater = layoutinflater.from(context);     }      @override     public int getitemviewtype(int position) {         if (position == 0) {             return view_type_start;         } else {             return view_type_progress_item;         }     }      @override     public recyclerview.viewholder oncreateviewholder(viewgroup parent, int viewtype) {         final view view;         switch (viewtype) {             case view_type_start:                 view = this.inflater.inflate(r.layout.view_item_small, parent, false);                 return new testviewholder(view);             case view_type_progress_item:                 view = this.inflater.inflate(r.layout.view_item, parent, false);                 return new testviewholder(view);         }         return null;     }      @override     public void onbindviewholder(recyclerview.viewholder holder, int position) {     }      @override     public int getitemcount() {         return 5;     } } 

view_item.xml

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#0000ff" android:orientation="vertical"> 

view_item_small.xml

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="80dp" android:layout_height="match_parent" android:background="#ff0000" android:orientation="vertical"> 

usage:

@override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      recyclerview recyclerview = (recyclerview) findviewbyid(r.id.recyclerview);     recyclerview.setadapter(new testrecyclerviewadapter(this));     recyclerview.setlayoutmanager(new gridlayoutmanager(this, 5)); } 

in adapter can that.

check if item's position equals 0, if inflate layout 80dp width.