Android官方文档

下面的内容来自Android官方网站，由于访问这个网站需要FQ，不方便，所以我把部分内容copy下来了，不保证内容是最新的。

Source

Overview
    Codelines, Branches, and Releases
    Codenames, Tags, and Build Numbers
    Project Roles
    Brand Guidelines
    Licenses
    FAQ
Downloading and Building
    Establishing a Build Environment
    Downloading the Source
    Building the System
    Compiling with Jack
    Running Builds
    Building Kernels
    Known Issues
Developing    
    Using Repo
    Using Eclipse
    Learning Git
    Adding a New Device
    Understanding 64-bit Builds
Contributing
    Life of a Patch
    Submitting Patches
    View Patches
    Life of a Bug
    Reporting Bugs
    Code Style Guidelines
Community

Devices

Interfaces
    Accessories    
        Audio Accessories

Headset

Specification

Requirements

Testing
        Custom Accessories

AOA        
              AOA 2.0
              AOA 1.0
            Stylus
    Audio
        Terminology
        Implementatio

Data Formats
        Attributes
        Warmup
        Latency

Contributors            Design            Measure            Light Testing Circuit            Audio Loopback Dongle            Measurements            Applications
        Priority Inversion
        Sample Rate Conversion
        Debugging
        MIDI

MIDI Architecture
            MIDI Test Procedure
        USB Digital Audio
        TV Audio
    Bluetooth
    Camera
        Camera HAL3
        HAL Subsystem
        Metadata and Controls
        3A Modes and State
        Output and Cropping
        Errors and Streams
        Request Creation
        Version Support
    DRM
    Graphics
        Architecture
        Implementation
        OpenGL ES Testing

Building test programs
            Porting the test framework
            Running the tests
            Automating the tests
            Using special test groups
            Integrating with Android CTS

Input
        Overview
        Key Layout Files
        Key Character Map Files
        Input Device Configuration Files
        Migration Guide
        Keyboard Devices
        Touch Devices
        Diagnostics
        Getevent
        Validate Keymaps
    Media
        SoC Dependencies
        OEM Dependencies
    Sensors
        Sensor stack
        Reporting modes
        Suspend mode
        Power consumption
        Interaction
        HAL interface
        Batching
        Sensor types
        Version deprecation
    Storage
        Traditional Storage
        Adoptable Storage
        Device Configuration
        Configuration Examples
    TV
        HDMI-CEC control service
Core Technologies
    ART and Dalvik
        Bytecode Format
        .Dex Format
        Instruction Formats
        Constraints
        Configuration
        Garbage Collection
    Configuration
         Carrier Customization
         File System
         Kernel Configuration
        Kernel Network Tests
        Low RAM
        OpenGLRenderer
        Runtime Permissions
        UICC
        Visual Voicemail
    Data Usage
        Network interface statistics overview
        Excluding Network Types from Data Usage
        Tethering Data
        Usage Cycle Reset Dates
        Kernel Overview
        Data Usage Tags Explained
        Kernel Changes
    Debugging
        AddressSanitizer
        Dumpsys
        Native Memory Use
        Network Use
        RAM Use
    Device Administration
        Implementation
        Multiple Users
        Managed Profiles
        Provisioning
        Multiuser Apps
        Testing Setup
    HAL File Reference
    OTA Updates
        OTA Tools
        Block-based OTA
        Inside OTA Packages
        Device-Specific Code

Reducing OTA Size
        Signing Builds for Release
    Power
        Power Management
        Component Power
        Device Power
        Power Values
        Battery Use
    Testing Infrastructure
        Start Here
        Machine Setup
        Working with Devices
        Test Lifecycle
        Option Handling
        An End-to-End Example
        Package Index

Security

Overview
    Kernel Security
    App Security
    Implementing Security
    Updates and Resources
    Enhancements
        Android 6.0
        Android 5.0
        Android 4.4
        Android 4.3
        Android 4.2
        Android 4.1
    Acknowledgements
Bulletins
Authentication
    Fingerprint HAL
    Gatekeeper
Keystore
    Features
    Implementer's Reference
Trusty TEE
    Trusty API Reference
Full Disk Encryption
SELinux
    Concepts
    Implementation
    Customization
    Validation
Verified Boot
    Verifying Boot
    Implementing dm-verity

Compatibility

Overview
    Compatibility Definition Document (CDD)
    Compatibility Test Suite
        Set up CTS
        Run CTS
        Run CTS Verifier
            Rotation Vector Crosscheck
        Interpret Results
        Develop CTS
    Downloads
    Contact Us