I want to know if this is possible to have to buttons beside each others which fills the with in any screen size but without designing multiple xml layouts.  

Is it possible?
I've found this information and I tried that, but not working for my purpose: [Android: Align LinearLayout center for all screen sizes](https://stackoverflow.com/questions/14150780/android-align-linearlayout-center-for-all-screen-sizes) 

This is my layout:

```
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/background" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical" >

        <Button
            android:layout_weight="1"
            android:id="@+id/btnPersonalInfo"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#FFC40D"
            android:drawableTop="@drawable/person"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/personal_info"
            android:textColor="@color/button_text" />

        <Button
            android:layout_weight="1"
            android:id="@+id/btnLawyerInfo"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#EE1111"
            android:drawableTop="@drawable/lawyer"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/lawyer_info"
            android:textColor="@color/button_text" />

        <Button
            android:id="@+id/btnSharesInfo"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#2976DE"
            android:drawableTop="@drawable/shares"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/buy_sell"
            android:textColor="@color/button_text" />

        <Button
            android:id="@+id/btnFinancialInfo"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:layout_marginLeft="10dp"
            android:background="#902293"
            android:drawableTop="@drawable/wallet"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/financial_info"
            android:textColor="@color/button_text" />

        <Button
            android:id="@+id/btnNews"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#0D9A0E"
            android:drawableTop="@drawable/news"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/news"
            android:textColor="@color/button_text" />

        <Button
            android:id="@+id/btnMessages"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:layout_marginLeft="10dp"
            android:background="#CA5A35"
            android:drawableTop="@drawable/messages"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/messages"
            android:textColor="@color/button_text" />

        <Button
            android:id="@+id/btnSync"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="@color/pink"
            android:drawableTop="@drawable/sync"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/update"
            android:textColor="@color/button_text" />

        <Button
            android:id="@+id/btnExit"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:layout_marginLeft="10dp"
            android:background="#AF274D"
            android:drawableTop="@drawable/quit"
            android:onClick="clickHandler"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:paddingTop="10dp"
            android:text="@string/exit"
            android:textColor="@color/button_text" />

        </LinearLayout>

</ScrollView>

```

in my 2 first buttons I set android:layout\_weight="1" but nothing happs.