I saw this the following icon Handling in some apps
Is there a way to expo to do this? I didn't find any other way than including custom Components, which is not possible in expo so far. So the only way i see working would be detaching. I would prefere not to detcach from expo, as it offers many comforts in App devellopment.
Still looking into the problem i found a Solution.
There is an component which is called Floating-Action-Button, that is compatible with expo.
Here is the link of the git with an expo example as well.
https://github.com/santomegonzalo/react-native-floating-action
Hope this helps someone else comming across the same problem.