android - Remove side spacing from button in linearLayout -

i have layout designed far

notice side space around both buttons name "save" have marked red color, want remove spacing.

both buttons wrapped inside linearlayout orientation set "vertical", tried using layout_weight, marginleft , marginright no success.

here's how xml code looks buttons inside linearlayout

 <linearlayout         android:id="@+id/buttonsection"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:orientation="vertical"          >         <!--this layout save , change currency buttons-->           <button              android:id="@+id/savebutton"              android:layout_width="fill_parent"              android:layout_height="wrap_content"              android:text="save"              android:layout_weight="1"           />           <button              android:id="@+id/currencybutton"              android:layout_width="fill_parent"              android:layout_height="wrap_content"              android:text="save"              android:layout_weight="1"          />     </linearlayout> 

just information above linearlayout wrapped inside 1 more linearlayout controls layout of full activity

edit

full code main activity xml file

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"     android:layout_height="match_parent"      android:paddingtop="@dimen/activity_vertical_margin"     android:paddingbottom="@dimen/activity_vertical_margin"     android:background="@drawable/layer_list"     app:layout_behavior="@string/appbar_scrolling_view_behavior"     tools:showin="@layout/activity_main"     tools:context=".mainactivity"     android:orientation="vertical"     android:weightsum="5"     >      <linearlayout         android:id="@+id/layout1"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:orientation="horizontal"         android:layout_weight="2"         android:paddingtop="10dp"         android:layout_marginbottom="30dp"         >          <linearlayout             android:id="@+id/leftcurrencysection"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_gravity="left"             android:layout_weight="1"             android:orientation="vertical"              >              <textview                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:text="gbp"                 android:textsize="30dp"                 android:textcolor="#ffffff"                 android:textallcaps="true"                 android:textstyle="bold"                 />              <edittext                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:text="0.00"                 android:textsize="30dp"                 android:textcolor="#ffffff"                 android:textallcaps="true"                 android:textstyle="bold"                 android:background="@null"                 />          </linearlayout>          <linearlayout             android:id="@+id/rightcurrencysection"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_gravity="right"             android:layout_weight="1"             android:orientation="vertical">              <textview                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:gravity="right"                 android:text="usd"                 android:textsize="30dp"                 android:textcolor="#ffffff"                 android:textallcaps="true"                 android:textstyle="bold"                 />              <edittext                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:gravity="right"                 android:text="0.00"                 android:textsize="30dp"                 android:textcolor="#ffffff"                 android:textallcaps="true"                 android:textstyle="bold"                 android:background="@null"                 />          </linearlayout>      </linearlayout>     <!--end of layout typing currency values-->      <linearlayout         android:id="@+id/buttonsection"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:orientation="vertical"          >         <!--this layout save , change currency buttons-->               <button                 android:id="@+id/savebutton"                 android:layout_width="fill_parent"                 android:layout_height="wrap_content"                 android:text="save"                 android:layout_weight="1"                 />                  <button                     android:id="@+id/currencybutton"                     android:layout_width="fill_parent"                     android:layout_height="wrap_content"                     android:text="save"                     android:layout_weight="1"                     />     </linearlayout>     <!--end of  save , change currency buttons-->      <!--begin layout calculator begin-->      <gridlayout          android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:columncount="3"         android:layout_gravity="center"         android:orientation="horizontal"         android:layout_weight="1"         >           <button android:text="1"              />          <button android:text="2" />          <button android:text="3" />            <button android:text="4" />          <button android:text="5" />          <button android:text="6" />            <button android:text="7" />          <button android:text="8" />          <button android:text="9" />           <button android:text="." />          <button android:text="0" />          <button android:text="del" />       </gridlayout>     <!--end layout calculator-->     <!--end layout calculator end-->   </linearlayout> 

there many people on here, pointed out mistake , guided me correct way of removing space either sides of button.

first i had remove padding parent linearlayout. removed paddingleft , paddingright. removed major part of space. cricket_007 pointing out.

even after removing space there still bit of space left out 1 or 2dp. apparently due default styling in android pointed out doug stevenson.

to remove last form of space, had apply sort of background mentioned eclipse example android:background="#00ff00"

applying above attribute removed space, due 9patch in android. learn more on here.