match_parent width does not work in RecyclerView

My RecyclerView and item has match_parent width but the result is : <view class=”android.support.v7.widget.RecyclerView” android:layout_width=”match_parent” and items: <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:tools=”http://schemas.android.com/tools” xmlns:fab=”http://schemas.android.com/apk/res-auto” android:id=”@+id/ll_itm” android:orientation=”horizontal” … Read more