This section explains how Android processes the various inputs it receives from the keyboard, sensors, and more.
Automotive
The Android Automotive hardware abstraction layer (HAL) provides a consistent interface to the Android framework regardless of physical transport layer. This vehicle HAL is the interface for developing Android Automotive implementations.
Input
The Android input subsystem nominally consists of an event pipeline that traverses multiple layers of the system. At the lowest layer, the physical input device produces signals that describe state changes such as key presses and touch contact points.
Neural Networks
The Android Neural Networks API (NNAPI) runs computationally intensive operations for machine learning. This document provides an overview on how to implement a Neural Networks API driver for Android 9.
Peripherals and accessories
Using a suite of standard protocols, you can implement compelling peripherals and other accessories that extend Android capabilities in a wide range of Android-powered devices.
Sensors
Android sensors give applications access to a mobile device's underlying
physical sensors. They are data-providing virtual devices defined by
sensors.h, the sensor Hardware Abstraction Layer (HAL).