zumo_2.0_android/app/src/main/res/layout/activity_splash.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
  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:id="@+id/frame_layout"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  >


  <android.support.constraint.ConstraintLayout
    android:id="@+id/container_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/transparent"
    android:orientation="vertical"
    />

  <ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center|bottom"
    android:layout_marginBottom="45dp"
    app:srcCompat="@drawable/logo_lifeplus"
    />
</FrameLayout>