I received such a layout:
How correctly to make such, not using the Custom View? Or is this the only way to solve the problem? I'm not sure how this design solution is called, so Google has not helped much.
I have a strong desire to program this in the most standard way, so that it turns into a theme that could be applied to standard widgets
Try this
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/linearTop"
android:padding="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="140dp"
android:layout_weight="1"
android:orientation="vertical">
<Button
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_margin="2dp"
android:background="@drawable/test"
android:text="button 1" />
<Button
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_margin="2dp"
android:background="@drawable/test"
android:text="button 1" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="130dp"
android:layout_weight="1"
android:orientation="vertical">
<Button
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/test"
android:text="button 1" />
</LinearLayout>
</LinearLayout>
<android.support.v7.widget.CardView
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_marginTop="-20dp"
android:background="#ffffff"
android:padding="10dp"
app:cardCornerRadius="50dp"
app:cardUseCompatPadding="true"
app:layout_anchor="@id/linearTop"
app:layout_anchorGravity="center">
<android.support.design.widget.FloatingActionButton
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_margin="10dp"
android:backgroundTint="#de0606"
android:scaleType="fitXY"
android:src="@drawable/ic_dot" />
</android.support.v7.widget.CardView>
</android.support.design.widget.CoordinatorLayout>
@drawable/ic_dot
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:fillColor="#de0606"
android:pathData="M12,12m-10,0a10,10 0,1 1,20 0a10,10 0,1 1,-20 0"/>
</vector>
android:background="@drawable/test"
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#06892b" />
<corners android:radius="20dp" />
</shape>
OUTPUT