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Android™ Application Development


OTS Solutions an IT Outsourcing Company provide android application, Client / Server Android Development, Android Tablet Apps Development, Android Web App Development. OTS has been involved in Android development since its emergence and provides these applications around the globe. – PowerPoint PPT presentation

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Title: Android™ Application Development

Android Application Development

What is Android ?
  • Google purchased Android Inc., a 22-month-old
    Palo Alto, California, startup in July 2005.
  • Android is a software stack for mobile devices
    that includes an operating system, middleware and
    key applications.

  • One of the most widely used mobile OS these days
    is ANDROID. Android is a software bunch
    comprising not only operating system but also
    middleware and key applications.
  • Android applications are written in java
    programming language and It is available as open
    source for developers to develop applications
    which can be further used for selling in android

Android OS Market
In Q2 2009 Android had 2.8 market share which
had grown to 33 market share by Q4 2010 and in
May its grow to 50, which made Android leader
of smart phone OSs worldwide.
How Android Is Different
  • Open for modification.
  • This gives vendors the opportunity to change and
    enhance their products based on their own
    preferences. This has created many versions of
    Android phones, which can vary by vendor, as
    well as a range of other devices that use this

Android System Architecture
Different version of Android
Basics applications of Android
  • Android applications are composed of one or more
    application components (activities, services,
    content providers, and broadcast receivers).
  • Each component performs a different role in the
    overall application behavior, and each one can be
    activated individually (even by other

Basics applications of Android
  • The manifest file must declare all components in
    the application and should also declare all
    application requirements, such as the minimum
    version of Android required and any hardware
    configurations required
  • Non-code application resources (images, strings,
    layout files, etc.) should include alternatives
    for different device configurations (such as
    different strings for different languages)

Android Features
  • Application Framework that enables reuse and
    replacement of components.
  • Optimized Graphics that is powered by customized
    2D graphics library and 3D graphics based on the
    OpenGL ES 1.0 specification
  • Provision of Bluetooth, EDGE, 3G and Wi-Fi .
  • SQLite for structured data storage Open source
  • Web Kit engine based integrated web browser .

Android Features
  • Camera, GPS, Compass, and Accelerometer
    (dependent on hardware support) GSM Telephony
    Dalvik virtual machine optimized for mobile
  • GSM Telephony
  • Dalvik virtual machine optimized for mobile
    devices .

Android's Latest
  • Browser It also supports popular web standards
    like CSS 3D, Animations . It also supports
    playback of HTML5 video content.
  • Gallery Now the gallery supports PTP (Picture
    Transfer Protocol) so that users can directly
    connect their cameras with Android device and
    transfer pictures with a single touch.

Android's Latest
  • Email When replying or forwarding an HTML
    message, The Email app now sends both plain text
    and HTML bodies as a multi-part mime message.
    This ensures that the message will be formatted
    properly for all recipients.
  • Enterprise support Users can now configure an
    HTTP proxy for each connected Wi-Fi access point.
    This lets administrators work with users to set a
    proxy hostname, port, and any bypass sub domains.

What is Android Tablet ?
  • Tablets are taking the computing world by storm.
    They are the latest trend that gives you internet
    capabilities, access to email, video chat and
    allows you to capture images and video while on
    the go.
  • These multimedia devices are designed to be
    portable, with small dimensions and a lightweight
    design. They also give you control by navigating
    around the device using the touchscreen display
    or stylus pen.

Android Tablet
  • Ice Cream Sandwich is the new update from Google
    to Android mobile operating system and tablets.
    It has many new features, which make it more of a
    complete revamp than upgrade.
  • Android Tablet is very famous in modern world and
    people of all profession are using Tablets for
    different usages.

Android Tablet
  • Android Tablet is very famous in modern world and
    people of all profession are using Tablets for
    different usages.
  • There is no mess of maintaining a keyboard etc,
    but it is fully integrated with touch screen
    functionality and it has LCD screen.
  • It is helpful for everyone and its usage totally
    depend on person-to-person and their requirements.

Android Cloud to Device Messaging Framework
  • Android Cloud to Device Messaging (C2DM) is a
    service that helps developers send data from
    servers to their applications on Android devices.
  • The service provides a simple, lightweight
    mechanism that servers can use to tell mobile
    applications to contact the server directly, to
    fetch updated application or user data.

Cloud to Device Messaging (C2DM)
Characteristics of Android Cloud to Device
Messaging (C2DM)
  • It allows third-party application servers to send
    lightweight messages to their Android
  • An application on an Android device doesnt need
    to be running to receive messages.

Characteristics of Android Cloud to Device
Messaging (C2DM)
  • It does not provide any built-in user interface
    or other handling for message data. C2DM simply
    passes raw message data received straight to the
  • It uses an existing connection for Google
    services. This requires users to set up their
    Google account on their mobile devices.

Architecture of Android Cloud to Device
Messaging (C2DM)
Enabling C2DM
  • The first time the application needs to use the
    messaging service, it fires off a registration
    Intent to a C2DM server.
  • If the registration is successful, the C2DM
    server broadcasts a REGISTRATION Intent which
    gives the application a registration ID. The
    application should store this ID for later use.

Enabling C2DM
  • To complete the registration, the application
    sends the registration ID to the application
    server. The application server typically stores
    the registration ID in a database.

Enabling C2DMThe application must include
the id package name is the unique identifier of
our application on Android.
Enabling C2DMGoogle's servers will
generate a token, the registration id and return
it to the application.
Enabling C2DM.This token will allow us to
send a message from the content. Once received,
it must be sent to our application server to be
Sending a Message
  • The application has a registration ID that allows
    it to receive messages for a particular device.
  • The third-party application server has stored the
    registration ID.
  • The application server sends a message to C2DM

Sending a Message
  • Google enqueue and stores the message in case the
    device is inactive.
  • When the device is online, Google sends the
    message to the device.

Receiving a Message
Receiving a Message
  • The system receives the incoming message and
    extracts the raw key/value pairs from the message
  • The system passes the key/value pairs to the
    targeted Android application in a Intent as
    a set of extras.
  • The Android application extracts the raw data
    from the RECEIVE Intent by key.

  • Thank You

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