Issue with Android XML layout
<p>Why is my layout, shown below, containing <code>EditText</code> and <code>Button</code>, not shown? The <code>MapView</code> is taking up the entire view.</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
    a:layout_width="fill_parent"
    a:layout_height="fill_parent" &gt;

&lt;LinearLayout
    a:layout_width="fill_parent"
    a:layout_height="wrap_content"
    a:orientation="vertical" &gt;

    &lt;LinearLayout
        a:layout_width="fill_parent"
        a:layout_height="wrap_content"
        a:orientation="vertical" &gt;

        &lt;RelativeLayout
            a:layout_width="fill_parent"
            a:layout_height="40dip"
            a:background="#50ffffff"
            a:orientation="horizontal"
            a:paddingBottom="0dip"
            a:paddingLeft="5dip"
            a:paddingRight="5dip"
            a:paddingTop="5dip" &gt;

            &lt;Button
                a:id="@+id/smsCancelButton"
                a:layout_width="70dip"
                a:layout_height="40dip"
                a:layout_alignParentRight="true"
                a:layout_weight="1.0"
                a:enabled="false"
                a:text="@string/sms_cancel_abbr" /&gt;
        &lt;/RelativeLayout&gt;

        &lt;com.google.android.maps.MapView
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/mapview"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:apiKey="not shown"
            android:clickable="true" /&gt;
    &lt;/LinearLayout&gt;

    &lt;SeekBar
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/seekBar1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:layout_marginTop="26dp"
        a:paddingLeft="10dip"
        a:paddingRight="10dip"
        a:paddingTop="30dip"
        android:max="100" &gt;
    &lt;/SeekBar&gt;
&lt;/LinearLayout&gt;
&lt;!-- #dcdcdc --&gt;

&lt;LinearLayout
    a:layout_width="fill_parent"
    a:layout_height="wrap_content"
    a:layout_alignParentBottom="true"
    a:background="#dcdcdc"
    a:orientation="horizontal"
    a:paddingBottom="5dip"
    a:paddingLeft="5dip"
    a:paddingRight="5dip"
    a:paddingTop="5dip" &gt;

    &lt;EditText
        a:id="@+id/smsBody"
        a:layout_width="0dip"
        a:layout_height="wrap_content"
        a:layout_weight="1.0"
        a:autoText="true"
        a:capitalize="sentences"
        a:hint="@string/sms_enter_message"
        a:imeOptions="actionSend|flagNoEnterAction"
        a:inputType="textShortMessage|textAutoCorrect|textCapSentences|textMultiLine"
        a:maxLines="10"
        a:nextFocusRight="@+id/send_button" /&gt;

    &lt;LinearLayout
        a:layout_width="wrap_content"
        a:layout_height="wrap_content"
        a:orientation="vertical" &gt;

        &lt;Button
            a:id="@+id/smsSendButton"
            a:layout_width="wrap_content"
            a:layout_height="wrap_content"
            a:layout_marginLeft="5dip"
            a:layout_weight="1.0"
            a:enabled="false"
            a:nextFocusLeft="@+id/smsBody"
            a:text="@string/sms_send_abbr" /&gt;
    &lt;/LinearLayout&gt;
&lt;/LinearLayout&gt;
</code></pre>

<p> </p>
