android - Use ImageView with a GridView to set number of images displayed in the rows and columns -

i want layout 8x8 grid of images, 40x40px icons, within gridview layout using imageview class.

i have tried playing around setlayoutparams , setscaletype methods of imageview class have not been able achieve desired affect. here have, experimenting 3x3 grid of small icons until hang of it.

main acitvity:

package com.topherwilso.ropasci;  import android.os.bundle; import android.app.activity; import android.view.menu; import android.widget.gridview;  public class mainactivity extends activity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);         gridview gv = (gridview) findviewbyid(r.id.gridview);         gv.setadapter(new imageadapter(getapplicationcontext()));     }      @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }  } 

and imageadapter class:

package com.topherwilso.ropasci;  import android.content.context; import android.view.view; import android.view.viewgroup; import android.widget.baseadapter; import android.widget.gridview; import android.widget.imageview; import android.widget.imageview.scaletype;  public class imageadapter extends baseadapter {      int[] images = {             r.drawable.one, r.drawable.two,             r.drawable.three, r.drawable.four,             r.drawable.five, r.drawable.six,             r.drawable.seven, r.drawable.eight,             r.drawable.nine     };     private context context;      public imageadapter(context applicationcontext){         context=applicationcontext;     }      @override     public int getcount() {         //number of data elements displayed         return images.length;     }      @override     public object getitem(int position) {         // todo auto-generated method stub         return null;     }      @override     public long getitemid(int position) {         // todo auto-generated method stub         return 0;     }      @override     public view getview(int position, view convertview, viewgroup parent) {         imageview iv;         if(convertview != null){             iv = (imageview) convertview;         }         else{             iv = new imageview(context);             iv.setlayoutparams(new gridview.layoutparams(120, 120));             iv.setscaletype(scaletype.center);             iv.setpadding(0, 0, 0, 0);         }         iv.setimageresource(images[position]);         return iv;     }  } 

this looks now,

this like,

try below

<?xml version="1.0" encoding="utf-8"?> <gridview xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/gridview" android:padding="40dp" android:layout_width="fill_parent"  android:layout_height="fill_parent" android:columnwidth="0dp" android:numcolumns="3" // set number of columns 3 android:verticalspacing="20dp" android:horizontalspacing="20dp"  android:gravity="center" /> 

http://developer.android.com/guide/topics/ui/layout/gridview.html

http://developer.android.com/reference/android/widget/gridview.html

specifying number of rows not possible. can use tablelayout instead of gridview if above not work. in case have 9 icons setting column number 3 should work.

for tablelayout

http://developer.android.com/reference/android/widget/tablelayout.html