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Android is an open source and Linux-based operating system for mobile devices such as smartphones and tablet computers.This tutorial will teach you basic Android programming and will also take you through some advance concepts related to Android application development.

Core Java

Java is a programming language that helps you write software for many platforms. Whether you are writing a GUI program with a desktop interface, or developing server-side software, or a mobile application using Android, learning Java will serve you well. Here are some core Java concepts to help you get started.

UI Widgets

GUI widgets are graphical elements used to build the human-machine-interface of a program. GUI widgets are implemented like software components. Widget toolkits and software frameworks, like e.g. GTK+ or Qt, contain them in software libraries so that programmers can use them to build GUIs for their programs.

Android Menu

The Android UI provides three basic menu types: The options menu is the one that appears when you click the menu button on older Android devices, or via the action bar at the top of the screen in newer ones (post 3.0). The options menu should handle global application actions that make sense for the whole app.

View

The View is a base class for all UI components in android. For example, the EditText class is used to accept the input from users in android apps, which is a sub class of View . Following are the some of common View subclasses which will be used in android applications.

Layout Menu

The Android UI provides three basic menu types: The options menu is the one that appears when you click the menu button on older Android devices, or via the action bar at the top of the screen in newer ones (post 3.0). The options menu should handle global application actions that make sense for the whole app.

Adaptor

In short, an adapter in Android carries the data from a source (e.g. ArrayList<> ) and delivers it to a layout (.xml file). Adapters in Android are a bridge between the adapter view (e.g. ListView ) and the underlying data for that view.

Android Service

Android service is a component that is used to perform operations on the background such as playing music, handle network transactions, interacting content providers etc. It doesn't has any UI (user interface). The service runs in the background indefinitely even if application is destroyed.

SQLite

SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. Advantage of SQLite: ... Android-databases created in Android are visible only to the application that created them. XML

XML stands for eXtensible Markup Language. XML is a markup language much like HTML. XML was designed to store and transport data. XML was designed to be self-descriptive. XML is a W3C Recommendation.

JSON

JSON stands for JavaScript Object Notation. JSON is a lightweight format for storing and transporting data. JSON is often used when data is sent from a server to a web page. JSON is "self-describing" and easy to understand.

Android APIs

API level is basically the Android version. Instead of using the Android version name (eg 2.0, 2.3, 3.0, etc) an integer number is used. This number is increased with each version. Android 1.6 is API Level 4, Android 2.0 is API Level 5, Android 2.0.1 is API Level 6, and so on.

Device Connectivity

Besides enabling communication with the cloud, Android's wireless APIs also enable communication with other devices on the same local network, and even devices which are not on a network, but are physically nearby. The addition of Network Service Discovery (NSD) takes this further by allowing an application to seek out a nearby device running services with which it can communicate. Integrating this functionality into your application helps you provide a wide range of features, such as playing games with users in the same room, pulling images from a networked NSD-enabled webcam, or remotely logging into other machines on the same network.

Android Graphics

Handling and Displaying Images in Android. Android provides many views which we can use to define a user interface for our apps. Amongst these it provides a large number to display information and take input from the user, these include text and image views.

Web Service

A web service is any piece of software that makes itself available over the internet and uses a standardized XML messaging system. XML is used to encode all communications to a web service. For example, a client invokes a web service by sending an XML message, then waits for a corresponding XML response.

Location Based Service

Location Based Services are provided by Android through its location framework. The framework provides a location API which consists of certain classes and interface. These classes and interface are the key components which allow us to develop Location Based Application in Android.

Google Map

Android provides facility to integrate Google map in our application. Google map displays your current location, navigate location direction, search location etc. We can also customize Google map according to our requirement.

Sensors

A sensor is a device used to measure a property, such as pressure, position, temperature, or acceleration, and respond with feedback. TE Connectivity (TE) is a global technology leader, providing sensors and connectivity essential in today's increasingly connected world.

Wi-Fi

Wi-Fi is the name of a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. A common misconception is that the term Wi-Fi is short for "wireless fidelity," however this is not the case. Wi-Fi is simply a trademarked phrase that means IEEE 802.11x.

Telephony Services

Telephony is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties.

Camera

The Android framework includes support for various cameras and camera features available on devices, allowing you to capture pictures and videos in your applications. This document discusses a quick, simple approach to image and video capture and outlines an advanced approach for creating custom camera experiences for your users.

Bluetooth

Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs).