layout_gravity="bottom" doesn't work
<p>Hello stackoverflow community!
I'm newbie both in programming and on this site, but let's get to the point.
I wrote an app:</p>

<pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:orientation="vertical"&gt;

&lt;LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:baselineAligned="false"
    android:orientation="horizontal"
    android:layout_marginTop="10dp"&gt;

    &lt;LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="2"
        android:orientation="vertical"
        tools:context="com.example.android.courtcounter.MainActivity"
        android:padding="24dp"&gt;

        &lt;TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:padding="4dp"
            android:text="Team A"
            android:textSize="14sp"
            android:fontFamily="sans-serif-medium"/&gt;

        &lt;TextView
            android:id="@+id/team_a_score"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:padding="4dp"
            android:text="0"
            android:textSize="56sp"
            android:textColor="#000000"
            android:fontFamily="sans-serif-light" /&gt;

        &lt;Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="4dp"
            android:onClick="plus3a"
            android:text="+3 Points" /&gt;

        &lt;Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="4dp"
            android:onClick="plus2a"
            android:text="+2 Points" /&gt;

        &lt;Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="4dp"
            android:onClick="plus1a"
            android:text="Free throw" /&gt;
    &lt;/LinearLayout&gt;

    &lt;View
        android:layout_width="1dp"
        android:background="@android:color/darker_gray"
        android:layout_height="match_parent"&gt;

    &lt;/View&gt;

    &lt;LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="2"
        android:orientation="vertical"
        tools:context="com.example.android.courtcounter.MainActivity"
        android:padding="24dp"&gt;

        &lt;TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:padding="4dp"
            android:text="Team B"
            android:textSize="14sp"
            android:fontFamily="sans-serif-medium"/&gt;

        &lt;TextView
            android:id="@+id/team_b_score"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:padding="4dp"
            android:text="0"
            android:textSize="56sp"
            android:textColor="#000000"
            android:fontFamily="sans-serif-light"/&gt;

        &lt;Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="4dp"
            android:onClick="plus3b"
            android:text="+3 Points" /&gt;

        &lt;Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="4dp"
            android:onClick="plus2b"
            android:text="+2 Points" /&gt;

        &lt;Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="4dp"
            android:onClick="plus1b"
            android:text="Free throw" /&gt;
    &lt;/LinearLayout&gt;

&lt;/LinearLayout&gt;

&lt;LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"&gt;

    &lt;Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|center_horizontal"
        android:onClick="scoreReset"
        android:text="reset" /&gt;
    &lt;/LinearLayout&gt;

&lt;/LinearLayout&gt;
</code></pre>

<p>I have a problem with positioning a button at the end.
I want it to be at the bottom of a screen and centered horizontally.
I know I could use relative layout but I decided to check if I can do this using linear layout. And seems that I can't... "bottom" attribute is being ignored.</p>