android - how do i set my screen for tablet? -

this xml code below make app tablet how set layout? change image button position when moving portrait landscape mode (green color button) , space in between 4 image icon , playstore icon when in portrait how reduce this?? me please images http://imgur.com/eks82xc , http://imgur.com/2piea8k want show green button below header right side above 4 icons button , reduce gap in between 4 icon , googleplay store icon how do this? change position when moving portrait landscape make tablet 1024 600 resolution

 <?xml version="1.0" encoding="utf-8"?>  <framelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" >   <linearlayout     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:background="@drawable/home_bgg"     android:orientation="vertical" >      <framelayout         android:layout_width="fill_parent"         android:layout_height="65.0dip" >          <imageview             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_gravity="center"             android:src="@drawable/logo" />       </framelayout>       <imagebutton             android:id="@id/btnsetting"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_gravity="right"             android:layout_marginright="10.0dip"             android:paddingbottom="5dp"             android:background="@null"             android:src="@drawable/power_on" />      <relativelayout         android:layout_width="fill_parent"         android:layout_height="0.0dip"         android:layout_weight="1.0"         android:gravity="center" >           <imagebutton             android:id="@id/btncamera"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:background="@color/transparent"             android:src="@drawable/home_btn_camera" />          <imagebutton             android:id="@id/btnhdr"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_marginleft="@dimen/home_btn_padding"             android:layout_torightof="@id/btncamera"             android:background="@color/transparent"             android:src="@drawable/home_btn_hdr" />          <imagebutton             android:id="@id/btnbeautify"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_below="@id/btncamera"             android:layout_margintop="@dimen/home_btn_padding"             android:background="@color/transparent"             android:src="@drawable/home_btn_edit" />          <imagebutton             android:id="@id/btncollage"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_alignleft="@id/btnhdr"             android:layout_aligntop="@id/btnbeautify"             android:layout_torightof="@id/btnbeautify"             android:background="@color/transparent"             android:src="@drawable/home_btn_collage" />     </relativelayout>     <relativelayout             android:layout_width="wrap_content"         android:layout_height="0.0dip"         android:layout_weight="0.5"          android:gravity="center"          >          <imagebutton             android:id="@id/btnsearch"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_marginleft="40dp"             android:background="@null"              android:gravity="center"               android:layout_centerinparent="true"              android:src="@drawable/google_play"              />           <imagebutton             android:id="@id/btnhot"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:background="@null"              android:gravity="right"               android:layout_alignparentbottom="true"               android:layout_alignparentright="true"              android:src="@drawable/footer_logoo"              />        </relativelayout>  </linearlayout>   </framelayout> 

put green button on same framelayout image view, , other 4 buttons, give id thr bottom google play relatiev layout , in relative layout of 4 buttons use this, android:layout_above="@+id/id_of_googleplay relative layout", , remove layout_weights, , gravity, in linearlayout gravity makes no sense since oriented consequently