android - Why can't ListView be top level view? -


so create fragment contains single listview, must do

<framelayout 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"                 android:paddingleft="@dimen/activity_horizontal_margin"                 android:paddingright="@dimen/activity_horizontal_margin"                 android:paddingtop="@dimen/activity_vertical_margin"                 android:paddingbottom="@dimen/activity_vertical_margin"                 tools:context=".mainactivityfragment">      <listview         android:id="@+id/listview"         android:layout_width="match_parent"         android:layout_height="match_parent"/>  </framelayout>

why have place listview inside framelayout? why can't listview top level view?

update

i kind of asked question wrong: meant is: why not best practice make listview top level view? see framelayout wrapper in online codes.

it can, long don't expect put else in layout.

framelayout, same linear , relative, containers several views, if have 1 don't need them.

most layout files seen online assume may want expand on ui adding necessities empty state or fab. empty state needs on same layout too.


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