A more efficient layout possible?

I have a working layout looking something like this:

This is the according xml:

<FrameLayout
    android:id="@+id/red"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

        ...

        <RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_above="@+id/green"
                android:layout_alignParentEnd="true"
                android:layout_alignParentRight="true"
                android:background="@drawable/blueyellow_border">

                <ImageButton
                    android:id="@+id/blue"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="2dp"
                    android:background="@drawable/selector_blue_border"
                    android:padding="5dp"
                    android:src="@drawable/blue_icon"
                    tools:ignore="ContentDescription"/>

                <ImageButton
                    android:id="@+id/yellow"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="2dp"
                    android:layout_toRightOf="@id/blue"
                    android:background="@drawable/selector_yellow_border"
                    android:padding="5dp"
                    android:src="@drawable/selector_yellow_icon"
                    tools:ignore="ContentDescription"/>
            </RelativeLayout>

            <TextView
                android:id="@+id/green"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                android:layout_alignParentEnd="true"
                android:layout_alignParentRight="true"
                android:background="@drawable/green_border"
                android:text="@string/green_string"/>

        </RelativeLayout>
</FrameLayout>

The problem is that this layout is not efficient according to Hierarchy View. In the following I am referring to the traffic light color scheme of Hierarchy View.

• For the "yellow" ImageButton I get "red" for layout and "yellow" for measuring.
• For the "blue" ImageButton I get "yellow" for drawing.
• For the "green" TextView I get "yellow" for layout.
• For the inner RelativeLayout I get "red" for measuring and drawing.
• And for the outer RelativeLayout I get "red" for measuring and "yellow" for layout and drawing.

Is there a way to do what I am doing (i.e. use selectors for backgrounds and image sources) and still be more efficient?

You can use only one RelativeLayout. Something like this (code not verified):

<RelativeLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/some_red_background">

    <TextView
        android:id="@+id/green"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:background="@drawable/green_border"
        android:text="@string/green_string"/>

    <ImageButton
        android:id="@+id/yellow"
        tools:ignore="ContentDescription"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@id/green"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_margin="2dp"
        android:background="@drawable/selector_yellow_border"
        android:padding="5dp"
        android:src="@drawable/selector_yellow_icon"/>

    <ImageButton
        android:id="@+id/blue"
        tools:ignore="ContentDescription"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@id/yellow"
        android:layout_above="@id/green"
        android:background="@drawable/selector_blue_border"
        android:padding="5dp"
        android:src="@drawable/blue_icon"/>


</RelativeLayout>