How can I draw this Bottomn Nav bar with react native?

Question

I just have this for the moment.

I need to resize the width and draw this little hole under my big plus button like this model.

I searched on internet for a long time and I didn't find nothing

Answer 1

We can do it different:

In that white bar, add overflow: hidden. Then add a circle with css thats grey, and position it -50% top so only half of the circle shows. then add the icon ontop of that.