Difference between revisions of "Android Concepts"
(→Android Architecture) |
(→Android Architecture) |
||
| Line 9: | Line 9: | ||
== Android Architecture == | == Android Architecture == | ||
Here are the major components based on this [[http://developer.android.com/guide/basics/what-is-android.html source]] | Here are the major components based on this [[http://developer.android.com/guide/basics/what-is-android.html source]] | ||
| − | [[Image:system-architecture.jpg| | + | |
| + | [[Image:system-architecture.jpg|700px| ]] | ||
Key principles | Key principles | ||
| Line 15: | Line 16: | ||
1. Linux Kernel - proven driver model, memory and process management, etc. (a core service of a reliable operating system) | 1. Linux Kernel - proven driver model, memory and process management, etc. (a core service of a reliable operating system) | ||
| − | 2. | + | 2. |
{| class="wikitable" border="1" | {| class="wikitable" border="1" | ||
| Line 25: | Line 26: | ||
| OpenGL | ES & SGL || core of graphics libraries | | OpenGL | ES & SGL || core of graphics libraries | ||
|- | |- | ||
| − | | Media Framework || core media: mpeg,mp3, | + | | Media Framework || core media: mpeg, mp3, all video formats, etc. |
|- | |- | ||
| − | | | + | | FreeType || an engine for rendering fonts |
| − | + | - | |
| − | + | | SQLite || core of data storage | |
| + | - | ||
| + | | WebKit || an open source web browser engine | ||
| + | - | ||
| + | | SSL || security socket layer | ||
|} | |} | ||
Revision as of 12:26, 8 March 2011
Main Page · Course Description · Course Topics · Schedule, Students, Teams · Course Resources · Course Projects
What is Android
Android is a software product for mobile devices that has three major parts:
- operating system
- middleware
- key applications
Android Architecture
Here are the major components based on this [source]
Key principles
1. Linux Kernel - proven driver model, memory and process management, etc. (a core service of a reliable operating system)
2.
| Component | Responsability | ||||||
|---|---|---|---|---|---|---|---|
| Surface Manager | composing drawing surface onto the screen | ||||||
| ES & SGL | core of graphics libraries | ||||||
| Media Framework | core media: mpeg, mp3, all video formats, etc. | ||||||
| FreeType | an engine for rendering fonts
- |
SQLite | core of data storage
- |
WebKit | an open source web browser engine
- |
SSL | security socket layer |
