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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <FrameLayout
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        >
        <EditText
            android:id="@+id/categoriesSearchBox"
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:hint="@string/categories_search_text_hint"
            />
        <ProgressBar
            android:id="@+id/categoriesSearchInProgress"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:indeterminate="true"
            android:indeterminateOnly="true"
            android:layout_marginRight="4dp"
            android:layout_gravity="center_vertical|right"
            style="?android:progressBarStyleSmall"
            android:visibility="gone"
            />
    </FrameLayout>

    <ListView
        android:id="@+id/categoriesListBox"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:fadingEdge="none"
        />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <FrameLayout
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        >
        <EditText
            android:id="@+id/categoriesSearchBox"
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:hint="@string/categories_search_text_hint"
            android:singleLine="true"
            />
        <ProgressBar
            android:id="@+id/categoriesSearchInProgress"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:indeterminate="true"
            android:indeterminateOnly="true"
            android:layout_marginRight="4dp"
            android:layout_gravity="center_vertical|right"
            style="?android:progressBarStyleSmall"
            android:visibility="gone"
            />
    </FrameLayout>

    <ListView
        android:id="@+id/categoriesListBox"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:fadingEdge="none"
        />
</LinearLayout>
Make categories search line single line
Make categories search line single line

Multi line probably just confuses the code badly
