Android is a powerful mobile operating system which supports a large number of applications. It is an open source Linux based operating system for mobile applications owned by Google. This operating system powers most of the smartphones and tablets nowadays. Cupcake, lollipop, KitKat, gingerbread,... are the various versions of the Android operating system.
Android is created for touchscreen devices like smartphones, tablet computers, a specialized user interface for Android TV, Android-enabled vehicles, and android wear. Android applications are available in stores such as Google play, slideME, opera mobile store, Amazon, F-droid, Mobango. The Android operating system follows a layered architecture approach.
It consists of all low-level drivers which make the foundation of the Android platform. Linux kernel is responsible for memory, process management, threading, driver model, network stack,...
The Android runtime consists of the Dalvik Virtual Machine which is basically a virtual machine to run the android application. It consumes less memory and provides fast performance. The Dalvik VM makes use of Linux core features like memory management and multi-threading.
WebKit, OpenGL, FreeType, SQLite, Media, C runtime library etc.are libraries.SQLite Library used for data storage and light in terms of mobile memory footprints and task execution.WebKit Library provides Web Browsing engine and so on.
It includes Android APIs such as User Interface, telephony, resources, locations, Content Providers and package managers. Developers have full access to the same framework APIs used by the core applications.
Activity manager Controls all aspects of the application lifecycle and activity stack.
windows manager manages windows and drawing surfaces, and is an abstraction of the surface manager library.
Resource manager Provides access to non-code resources such as localized Strings, bitmaps, Graphics and Layouts.
Notification manager enables apps to display custom alerts in the status bar.
All applications such as home, contact, settings, games, browsers are using the Android framework that uses android runtime and libraries. This layer uses all the layers below it for the proper functioning of these mobile apps.
There are many advantages for android apps over other operating systems
supports 2D, 3D graphics
supports multiple languages
faster web browser
supports MP4, 3GP, MPEG4, MIDI
additional hardware support
open source framework
updated user interface design
Android app development companies provide design, development and testing services for mobile apps. Over the last few years, there has been an exponential growth in the number of devices running on the Android OS. Thus the number of android developing companies has also increased. We are here to provide you with a list of companies which can successfully take your project as per your requirements.
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