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Android™ Runtime Development

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New Contributor
JohnFarrell
Posts: 8
Registered: ‎09-03-2012
My Device: 9630

What Android is not?

A Java ME implementation — Android applications are written using the Java language,
but they are not run within a Java ME (Mobile Edition) VM, and Java-compiled classes and
executables will not run natively in Android.
Part of the Linux Phone Standards Forum (LiPS) or the Open Mobile Alliance (OMA)
Android runs on an open-source Linux kernel, but, while their goals are similar, Android’s
complete software stack approach goes further than the focus of these standards-defining
organizations.
Simply an application layer (such as UIQ or S60) — Although Android does include an application
layer, “Android’’ also describes the entire software stack, encompassing the underlying
operating system, the API libraries, and the applications themselves.
A mobile phone handset — Android includes a reference design for mobile handset manufacturers,
but there is no single “Android phone.” Instead, Android has been designed to support
many alternative hardware devices.
Google’s answer to the iPhone — The iPhone is a fully proprietary hardware and software
platform released by a single company (Apple), whereas Android is an open-source
software stack produced and supported by the Open Handset Alliance (OHA) and designed
to operate on any compatible device.

New Contributor
JohnFarrell
Posts: 8
Registered: ‎09-03-2012
My Device: 9630

All About Android

Android has expanded beyond a pure mobile phone platform to provide a development
platform for an increasingly wide range of hardware, including tablets and televisions.
Put simply, Android is an ecosystem made up of a combination of three components:

  • A free, open-source operating system for embedded devices
  • An open-source development platform for creating applications
  • Devices, particularly mobile phones, that run the Android operating system and the applications created for it

Android is made up of several necessary and dependent parts, including the
following:

  • A Compatibility Definition Document (CDD) and Compatibility Test Suite (CTS) that describe the capabilities required for a device to support the software stack.
  • A Linux operating system kernel that provides a low-level interface with the hardware, memory management, and process control, all optimized for mobile and embedded devices.
  • Open-source libraries for application development, including SQLite, WebKit, OpenGL, and a media manager.
  • A run time used to execute and host Android applications, including the Dalvik Virtual Machine (VM) and the core libraries that provide Android-specific functionality. The run time is designed to be small and efficient for use on mobile devices.
  • An application framework that agnostically exposes system services to the application layer, including the window manager and location manager, databases, telephony, and sensors.
  • A user interface framework used to host and launch applications.
  • A set of core pre-installed applications.
  • Native Android Applications x 5
  • A software development kit (SDK) used to create applications, including the related tools, plug-ins, and documentation.
New Contributor
JohnFarrell
Posts: 8
Registered: ‎09-03-2012
My Device: 9630

Types of Android Applications

Most of the applications we create in Android will fall into one of the following categories:
Foreground Applications — The application which is only useful when appears on the screen and if it is suspended will not be visible like Game apps.

Background Application — These type of application only works at background of phone software. It does not show their visibility, most of its lifetime hidden like alarm clock.

Intermittent Applications — It works at both foreground and background. This type of application do most of their work in the background. Most well-designed applications fall into this category. A common example would be a media player.

Widgets and Live Wallpapers Apps— Some applications are represented only as a home-screen
Widget or as a Live Wallpaper.

New Contributor
JohnFarrell
Posts: 8
Registered: ‎09-03-2012
My Device: 9630

Applications in Android Devices

Following are the preinstalled applications in almost all the android devices which makes it open source project:

E-mail client
SMS management application
A full PIM (personal information management) suite, including a calendar and contacts list
WebKit-based web browser
music player and picture gallery
camera and video recording application
calculator
home screen
alarm clock

Few devices also offers Google Mobiel applications like:

Google Play Store for downloading third-party Android applications
Google Maps application, including StreetView, driving directions,
and turn-by-turn navigation, satellite views, and traffic conditions
Gmail
Google Talk
YouTube

Note: Some devices can have more than these apps.

New Developer
jordaan0_gmail
Posts: 23
Registered: ‎08-03-2012
My Device: BlackBerry Playbook, BlackBerry 10 dev alpha device

Re: All About Android


JohnFarrell wrote:

Android has expanded beyond a pure mobile phone platform to provide a development
platform for an increasingly wide range of hardware, including tablets and televisions.
Put simply, Android is an ecosystem made up of a combination of three components:


Android has encorperated Google glass to its android family creating a new massive realm of augmented reality to its ecosystem 

 

New Contributor
JohnFarrell
Posts: 8
Registered: ‎09-03-2012
My Device: 9630

Re: All About Android


Android has encorperated Google glass to its android family creating a new massive realm of augmented reality to its ecosystem 

 

 


Yes of course!
Android is from Google that's why......:smileyhappy: