app/src/main/res/layout/onlinefeedview_header.xml

<?xml version="1.0" encoding="utf-8"?>

<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">

    <ImageView
        android:id="@+id/imgvCover"
        android:layout_width="@dimen/thumbnail_length_onlinefeedview"
        android:layout_height="@dimen/thumbnail_length_onlinefeedview"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:layout_marginTop="16dp"
        android:contentDescription="@string/cover_label"
        tools:src="@drawable/ic_stat_antenna_default"
        tools:background="@android:color/holo_green_dark" />

    <TextView
        android:id="@+id/txtvTitle"
        style="@style/AntennaPod.TextView.Heading"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="8dp"
        android:layout_marginRight="16dp"
        android:layout_marginTop="16dp"
        android:layout_toRightOf="@id/imgvCover"
        android:ellipsize="end"
        android:gravity="center_vertical"
        android:maxLines="2"
        tools:text="Online feed title"
        tools:background="@android:color/holo_green_dark" />

    <TextView
        android:id="@+id/txtvAuthor"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/txtvTitle"
        android:layout_marginBottom="8dp"
        android:layout_marginRight="16dp"
        android:layout_toRightOf="@id/imgvCover"
        android:ellipsize="end"
        android:lines="1"
        android:textColor="?android:attr/textColorSecondary"
        android:textSize="@dimen/text_size_small"
        tools:text="Online feed author"
        tools:background="@android:color/holo_green_dark" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/imgvCover"
        android:orientation="vertical">


        <Spinner
            android:id="@+id/spinnerAlternateUrls"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="16dp"
            android:layout_marginRight="16dp"
            android:layout_marginTop="8dp"
            android:textColor="?android:attr/textColorPrimary"
            android:textSize="@dimen/text_size_micro" />

        <Button
            android:id="@+id/butSubscribe"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="16dp"
            android:focusable="false"
            android:text="@string/subscribe_label" />

        <TextView
            android:id="@+id/txtvDescription"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="16dp"
            android:layout_marginLeft="16dp"
            android:layout_marginRight="16dp"
            android:textColor="?android:attr/textColorSecondary"
            android:textSize="@dimen/text_size_small"
            tools:text="@string/design_time_lorem_ipsum"
            tools:background="@android:color/holo_green_dark"/>

    </LinearLayout>
</RelativeLayout>