android - Add a dynamic tablelayout in a relativelayout above a existing button -

i'm trying add tablelayout in relativelayout, i'm havind problems put tablelayout above existing button, can below it.

xml

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/main" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_horizontal" android:paddingbottom="@dimen/activity_vertical_margin" android:paddingleft="@dimen/activity_horizontal_margin" android:paddingright="@dimen/activity_horizontal_margin" android:paddingtop="@dimen/activity_vertical_margin" android:stretchcolumns="0,1" tools:context=".mainactivity" >  <button     android:id="@+id/button1"     android:layout_width="wrap_content"     android:layout_height="wrap_content"            android:gravity="center_horizontal"     android:text="button" /> 

the lp.addrule(relativelayout.above, idx); isn't working

protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      // size of screen set size of buttons according     // level     display display = getwindowmanager().getdefaultdisplay();     point size = new point();     display.getsize(size);     int level = 3;     int width = size.x - (size.x / level);     int btsize = width / level;      // main layout     relativelayout rlayout = (relativelayout) findviewbyid(r.id.main);           //     tablelayout tlayout = new tablelayout(this);      int id = 0;     (int = 0; < level; i++) {         // create tablerow         tablerow trow = new tablerow(this);          (int j = 0; j < level; j++) {              id++;             button bt = new button(this);             bt.setid(id);             bt.setwidth(btsize);             bt.setheight(btsize);             bt.setminimumwidth(0);             bt.setminimumheight(0);             trow.addview(bt); // add button row         }         tlayout.addview(trow);// add row table     }       relativelayout.layoutparams lp = new relativelayout.layoutparams(             relativelayout.layoutparams.wrap_content, relativelayout.layoutparams.wrap_content);     int idx = findviewbyid(r.id.button1).getid();     lp.addrule(relativelayout.above, idx);     rlayout.addview(tlayout,lp);// add table relativelayout  } 

you can try this... put code in oncreate() method

protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main);   relay = (relativelayout)findviewbyid(r.id.rlayout);  layoutparams layoutprams = new layoutparams(layoutparams.wrap_content,layoutparams.wrap_content);   tablelayout table=new tablelayout(this); relay.addview(table);