Round only top corner of cardview

I have been trying the same but none of the solutions provided worked for me.

The only thing that worked was:

1) Make a custom background resource (like a rectangle shape) with rounded corners.

2) set this custom background using the command -

cardView = view.findViewById(R.id.card_view2);
cardView.setBackgroundResource(R.drawable.card_view_bg);

Worked perfectly for me! Hope this helps you.

The XML layout I made with top left and bottom right radius.

<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/white" />
<corners android:topLeftRadius="18dp" android:bottomRightRadius="18dp" />
</shape>

In your case, you need to change only topLeftRadius as well as topRightRadius.

We can set the marginBottom of the card view in negative value.Margin should be same value as card radius. For Example,

    <FrameLayout
        android:id="@+id/rootview"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

   <android.support.v7.widget.CardView
         android:id="@+id/card_view"
         android:layout_marginBottom="-3dp"
         project:cardCornerRadius="3dp"
         android:layout_width="match_parent"
         android:layout_height="match_parent">

         <!--The child view inside the cardview should have extra padding,so that negative margin will not affect the bottom padding of its child.Here normally we have 16dp bottom padding for child + margin bottom of the parent is 3dp=19dp comes.-->

       <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingBottom="19dp"/>

   </android.support.v7.widget.CardView>
   </FrameLayout>

It works for me.But I am in doubt whether it is the proper way of doing.Any suggestions are welcome.