별짓 다해봤는데 안되는데 대체 어떻게 하면되죠?? 그냥 크기만 줄뿐 위치는 안바뀌네요..

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/mirror"
    android:gravity="center"
    android:orientation="vertical"
     >

 

    <LinearLayout
        android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_weight="5"
    android:orientation="vertical" >


        <Button
            android:id="@+id/button2"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="100dp"
            android:layout_weight="1"
            android:text="범위설정하기" />

    </LinearLayout>

    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_margin="30dp"
        android:layout_weight="4"
        android:text="마법의 구슬아 알려주세요" />

</LinearLayout>