How to make Button overlap CardView at the bottom

Question

I am creating an app that displays announcements, and I want to add a login. I am trying to make this XML design,

Answer 1

Using ConstraintLayout this issue can solve :

Here is the btn_rounded_primary:

Here is the dimens.xml:

2dp
3dp
5dp
7dp
10dp
15dp
18dp
20dp
25dp
35dp
40dp
50dp
55dp
8dp

colors.xml

#f7f7f7
#f2f2f2
#e6e6e6
#cccccc
#999999
#666666
#37474F
#263238

Output using ConstraintLayout: