Android Internals
Description
The course describes in details the software layers of the Android operating system and their components, starting from the Linux kernel, continue with the native layer ending with the framework layer. A deep knowledge of the internal mechanisms of an operating system can help programmers write efficient applications and helps solving problems. It is also essential for those who intend to build a customized Android OS.
Intended audience
Android programmers and support people who want better understanding of the operating system.
Prerequisites:
A previous knowledge of Android.
Basic knowledge of Linux.
Basic knowledge in C, C++ and Java.
Topics
General OS Overview
Operating system components
Operation modes
Android architecture
The Linux kernel
Linux kernel overview
Linux memory management
Linux Process Management
Linux I/O
Android modified kernel
Android file systems
Android partitions
Mounts in Android
The native layer
External open-source libraries
Native daemons
Android Runtime (ART)
The framework layer
Application components
Managers
The view system
Binder at framework layer
System services
Android boot process
The boot loader
The kernel and initramfs
The first stage init
The second stage init
Java level startup
Android Security
Application sandboxing
Trusted Execution Environment (TEE)
Authentication
Encryption
Verified boot
Android Open-source Project (AOSP)
Hardware requirements
Download the AOSP source tree
Building an Android image from the source
Modularization of the Android OS
Project Treble
The Generic Kernel Image (GKI) project
Customizing Android
Custom APIs
Custom user interface
Custom native code
Adding device drivers
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