crystal-wallet-android/app/src/main/res/layout/transaction_list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <RelativeLayout
            android:id="@+id/rlTransactionToolsHeader"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <EditText
                android:id="@+id/etTransactionSearch"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentStart="true"
                 />
            <Button
                android:id="@+id/btnTransactionsFilterDisplay"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:visibility="gone" />

            <Spinner
                android:id="@+id/spTransactionsOrder"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="order"
                 />
        </RelativeLayout>
        <android.support.v7.widget.RecyclerView
            android:id="@+id/transactionListView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/rlTransactionToolsHeader"
            />
    </RelativeLayout>
</LinearLayout>