CurvedBottomNavigation

This a material design implementation of the bottomnavigation but with fab anchored on the view just like the BottomAppBar that was introduced recently by Google's Material Design Team.

Usage

<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity">

<androidx.core.widget.NestedScrollView android:layout_width="match_parent"
                                       android:id="@+id/nested"
                                       android:layout_height="match_parent">
    <TextView
            android:layout_width="match_parent"
            android:text="@string/cat_curvedbottombar_lorem_ipsum"
            android:layout_height="wrap_content"/>
</androidx.core.widget.NestedScrollView>

<com.scaleup.admin.library.curvedbottomnavigation.CurvedBottomBar android:layout_width="match_parent"
                                                                  android:id="@+id/bar"
                                                                  app:curvedHideOnScroll="true"
                                                                  app:curvedBackgroundTint="@android:color/white"
                                                                  android:layout_gravity="bottom"
                                                                  app:menu="@menu/navigation"
                                                                  app:labelVisibilityMode="labeled"
                                                                  app:curvedFabCradleMargin="8dp"
                                                                  android:layout_height="wrap_content"/>

<com.google.android.material.floatingactionbutton.FloatingActionButton android:layout_width="wrap_content"
                                                                       app:layout_anchor="@id/bar"
                                                                       android:id="@+id/fab"
                                                                       android:layout_height="wrap_content"/>

</androidx.coordinatorlayout.widget.CoordinatorLayout>

I recommend using app:curvedBackgroundTint="@android:color/white" because theming is buggy and also use Material design theme the lib requires it.