If you would like to have a custom launch screen for your Android project, support is available inside the Project Settings under the Platforms/Android/Launch Images section of your project.
You can set the background, portrait, or landscape images used as well as whether or not the feature is enabled/disabled (refer to the table below for more information).
Launch Images Options
Download Background Vertical Image
Used as the background for OBB downloading.
Used as a splash screen for applications with Portrait, Reverse Portrait, Sensor Portrait, Sensor or Full Sensor orientation.
Used as a splash screen for applications with Landscape, Sensor Landscape, Reverse Landscape, Sensor or Full Sensor orientation.
Show Launch Image
Shows the launch image as a startup splash screen. If enabled, either or both launch images selected for the project will be included depending on the orientation setting in the project.