drawable | BitmapDrawable ShapeDrawable LayerDrawable

You're calling findViewById on your current Activity, which doesn't contain R.id.pizza_selection. Therefore I suspect you'll see

val pizzaDropdown = findViewById(R.id.pizzaSelection)

return null.

Try something like this:

You need to replace \ with \\ if you are giving path with jenkins in Windows.
May be if file path is too huge or that is the root cause you can try mounting the directory to a short path

EDIT : Based on your modified question :
Open Jenkins dashboard. Navigate to Manage Jenkins-> Configure System. Under the Global properties section add another environment variable named GRADLE_USER_HOME as shown below.

You're doing inflater.inflate(R.layout.fragment_menu, container, false);, not inflating your R.layout.fragment_food_list. You'll need to inflate the right layout to find your Recycler view.

So, this is not exactly what you want but at least it has the same layout as you want with a simpler approach.

So, the main challenges are:

• Taking a curve cutout on the CardView probably need to be built programmatically with canvas for a better result. But for simplicity, this is replaced by a BottomAppBar wrapped in a CoordinatorLayout in order to have the curve effect with the top circle/gap.

• Replacing the top View with Fab in order to have an Inset FAB by setting the layout_anchor to the BottomAppBar. Check material design for this.

  And having the cutout behavior requires to make the FAB like it doesn't exist by setting a transparent backgroundTint & removing the outlineProvider

• Making the top cutout (gap) of a particular row get overlapped to the top row like if it is a part of it. This works with the negative margin on the root view.

Add these attributes to your theme

It seems that your HomeFragment doesn't have no parameters constructor. If you want to use fragment that requires constructor parameters you need to provide FragmentFactory to navigation component.

Add empty constructor HomeFragment() to HomeFragment, and it should work.

Just remove the following line, from TextView attributes

You need to set your recyclerView on the main thread. Try to put the recyclerView in onCreate() and the .startListening() in the onStart.

Interesting scenario. I think instead of adding time delays in adapter you should do that stuff in your class where you are passing data to adapter. Try to load first 3 items which you want to show then use handler to make delay of 10 seconds.

Like this :