Android 4 Advanced Programming (third edition) Android introduction

The Android component consists of:

A compatibility definition document (compatibility definition DOCUMENT,CDD) and a Compatibility test package (compatibility test suite,cts) that describe the performance that mobile devices need to support the software stack.

A Linux operating system kernel

Open Source Library for application development, including SQLite Webkit OpenGL and a media manager

Runtime for running and hosting Android applications, including Dalvik virtual machines and core libraries that provide Android-specific features

An application framework that implicitly displays system services to the application layer, including window managers, location managers, databases, telephones, and sensors

A user interface framework for hosting and launching applications

A core set of preinstalled applications

Software development kits for developing applications, including tools, plugins, and documentation

Features of the Android SDK:

Access to hardware (including cameras, GPS, and sensors)

Data transfer using WiFi, Bluetooth technology and NFC

Maps, geocoding, and location-based services

Background services

Data storage and retrieval using the SQLite database

Shared data and inter-application communication

Enhance your home screen with widgets and live wallpaper

Wide range of media support and 2d/3d graphics

Cloud to Device Messaging (C2DM)

Optimized memory and process management

Android software Development Kit (software development KIT,SDK):

Android API SDK Core is the Android API library, it provides developers with access to the Android stack method

Development tools

Android virtual Device Manager and emulator

The complete documentation

Sample code

Online Support

Android software Stack:

Linux kernel

Library on top of the kernel, Android contains a variety of C + + core libraries

Android runtime

Application Framework

Application Layer

Android Application Architecture:

Activity Manager and Fragment Manager

Views View

Notification Manager (Notification Manager)

Content Provider (contents provider)

Resource Manager (Resource Manager)

Intent

Android 4 Advanced Programming (third edition) Android introduction