CardView inside RecyclerView has extra margins

Question

I am using a CardView as element inside a RecyclerView. When doing so android automatically generates margins between the cardView and the screen and between different cardViews.

<android.support.v7.widget.CardView  xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/galleryCardBGColor" app:cardCornerRadius="2dp" >  <android.support.v7.widget.RecyclerView     android:id="@+id/my_recycler_view"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:scrollbars="vertical" /> 

I followed the instructions in the link to integrate them into my project: using-recyclerview-and-cardview-in-eclipse-adt

I had been previously using a linearlayout for the list element :

<LinearLayout     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:orientation="vertical" > 

This was working perfectly fine, with no margins whatsoever between the list elements. I have now just placed the linear layout inside the cardView which has resulted in extra margins.

The reason being that i want to provide exact margins to these elements, and any margins I supply now is being added over to this preexisting margins. I have tried supplying zero/negative paddings/margins to the cardView element but none of these work.

Any idea, I can remove these margins or otherwise know exactly how much margin is being added.

Answer 1

It worked for me. Use:

 card_view:cardElevation="0dp"  card_view:cardMaxElevation="0dp"