compile 'com.github.ulez:dropindicator:0.0.2'
<comulez.github.droplibrary.DropIndicator
android:background="@color/colorPrimary"
android:id="@+id/circleIndicator"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_alignParentBottom="true"
app:circle_color="@android:color/darker_gray"
app:click_color="#fafafa"
app:color1="#FCC04D"
app:color2="#00C3E2"
app:color3="#FE626D"
app:color4="#966ACF"
app:duration="800"
app:radius="14dp"
app:scale="0.5">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/msg" />
........
</comulez.github.droplibrary.DropIndicator>
Lisenced under Apache 2.0 lisence