Hello folks, happy you are here once again to read more details about Android. In previous article we have highlighted introduction about Android & also how the era of Android Starts. So better you now know some things about Android. We have written this article to make you more familiar with Android – Software Stack that holds number of Layers inside with unique functionalities.
As you can see, android software stack contains different layers that are as described below:
- Linux Kernel
- Contain all low level drivers for various hardware components
- Relaying on Linux Kernel for core system services like
- Memory and process management
- Network stack
- Driver model
- Provides Abstraction between hardware and rest of the software stack
- Android RunTime
- Contains set of core libraries that enables developers to write Android Apps using Java Programming
- It also has DVM that stands for Dalvik Virtual Machine, which provides environment to execute Android Applications. It also has lots of stuffs as,
- Each android app runs in it’s own environment
- have it’s own instance of Dalvik VM
- Exposed to developers through Android Application Framework
- Contains C/C++ libraries used by components of Android Systems
- few of features include
- SQLite Library used for data storage and light in terms of mobile memory footprints and task execution
- WebKit Library mainly functions for Web Browsing and much more in that.
- Application Framework
- Exposed various capabilities of Android that developers use them in their Application developments
- Enables and simplify the reuse of components that are available directly for developers and their apps
- Developers have full access to the same framework APIs used by the core applications, so that can enhance more in terms of functionalities of their applications
- Users are allowed to replace components as they like and feel
- Various Features are like,
- View System – used to build an application, including lists, grids, texts, boxes, buttons and much more.
- Content Provider – Enable application to access data from other application or to share their own data
- Resource Manager – Provide access to non-code resources (localized Strings, Graphics and Layouts)
- Notification Manager – Enable apps to display custom alerts in the status bar
- Activity Manager – Manage the Lifecycle of apps & provide common navigation back stack
- Top of the Android Application Stack contain tone of Apps that users can download from Android Official Play Market
- Set of Core applications are pre-packed in the handset like Email Client, SMS Program, Calendar, Maps, Browser, Contacts and few more.
So for now, you are aware about Android Software Stack and it’s layer terminology. I am sure you have get plenty of good notes from this article. Anytime if queries persist you can always comment back so we can answer back to you.
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