<RelativeLayout 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"
    tools:context="${relativePackage}.${activityClass}" >

   <LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/btsearchdev"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:background="@drawable/color_button_selector"
            android:text="@string/btSearchDev" />

    </LinearLayout>

    <ListView
        android:id="@+id/lv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="50dip"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"
        android:layout_marginTop="100dip" >
    </ListView>

    <TextView
        android:id="@+id/scan_devinfo"
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dip"
        android:layout_below="@+id/linearLayout1"
        android:layout_centerHorizontal="true"
        android:text="" />

</RelativeLayout>