This tutorial describes how to use the Android Sensor manager. The tutorial is based on Eclipse 3.6, Java 1.6 and Android 2.3.3 (Gingerbread). Develop Book Apps: How to Develop Book Apps for Android Using Android Studio This Video Show You - How to Develop/Create or Build a Book App for Android by u. Root Samsung Galaxy S II On Android 2.3.3 How To Tutorial By Oliver Haslam May 1st, 2011 Samsung’s Galaxy S II has barely been launched and thanks to developer Chainfire of XDA-Developer fame, it has been rooted already for full file system access. This tutorial will consider that you are going to setup your environment on Windows machine having Windows 8.1 operating system. Step 3 - Create Android Virtual Device. To test your Android applications, you will need a virtual Android device. So before we start writing our code, let us create an Android virtual device.

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Android - User Interface

Android Advanced Concepts

Android Useful Examples

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Step 1 - System Requirements

You will be delighted, to know that you can start your Android application development on either of the following operating systems −

Microsoft® Windows® 10/8/7/Vista/2003 (32 or 64-bit)
Mac® OS X® 10.8.5 or higher, up to 10.9 (Mavericks)
GNOME or KDE desktop

Second point is that all the required tools to develop Android applications are open source and can be downloaded from the Web. Following is the list of software's you will need before you start your Android application programming.

Java JDK5 or later version
Java Runtime Environment (JRE) 6
Android Studio

Web Browser For Android 2.3.3

Step 2 - Setup Android Studio

Overview

Android Studio is the official IDE for android application development.It works based on IntelliJ IDEA, You can download the latest version of android studio from Android Studio 2.2 Download, If you are new to installing Android Studio on windows,you will find a file, which is named as android-studio-bundle-143.3101438-windows.exe.So just download and run on windows machine according to android studio wizard guideline.

If you are installing Android Studio on Mac or Linux, You can download the latest version from Android Studio Mac Download,or Android Studio Linux Download, check the instructions provided along with the downloaded file for Mac OS and Linux. This tutorial will consider that you are going to setup your environment on Windows machine having Windows 8.1 operating system.

Installation

So let's launch Android Studio.exe,Make sure before launch Android Studio, Our Machine should required installed Java JDK. To install Java JDK,take a references of Android environment setup

Once you launched Android Studio, its time to mention JDK7 path or later version in android studio installer.

Below the image initiating JDK to android SDK

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Need to check the components, which are required to create applications, below the image has selected Android Studio, Android SDK, Android Virtual Machine and performance(Intel chip).

Need to specify the location of local machine path for Android studio and Android SDK, below the image has taken default location of windows 8.1 x64 bit architecture.

Need to specify the ram space for Android emulator by default it would take 512MB of local machine RAM.

At final stage, it would extract SDK packages into our local machine, it would take a while time to finish the task and would take 2626MB of Hard disk space.

After done all above steps perfectly, you must get finish button and it gonna be open android studio project with Welcome to android studio message as shown below

You can start your application development by calling start a new android studio project. in a new installation frame should ask Application name, package information and location of the project.

After entered application name, it going to be called select the form factors your application runs on, here need to specify Minimum SDK, in our tutorial, I have declared as API23: Android 6.0(Mashmallow)

The next level of installation should contain selecting the activity to mobile, it specifies the default layout for Applications

At the final stage it going to be open development tool to write the application code.

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Step 3 - Create Android Virtual Device

To test your Android applications, you will need a virtual Android device. So before we start writing our code, let us create an Android virtual device. Launch Android AVD Manager Clicking AVD_Manager icon as shown below

After Click on a virtual device icon, it going to be shown by default virtual devices which are present on your SDK, or else need to create a virtual device by clicking Create new Virtual device button

If your AVD is created successfully it means your environment is ready for Android application development. If you like, you can close this window using top-right cross button. Better you re-start your machine and once you are done with this last step, you are ready to proceed for your first Android example but before that we will see few more important concepts related to Android Application Development.

Hello Word Example

Before Writing a Hello word code, you must know about XML tags.To write hello word code, you should redirect to App>res>layout>Activity_main.xml

To show hello word, we need to call text view with layout ( about text view and layout, you must take references at Relative Layout and Text View ).

Need to run the program by clicking Run>Run App or else need to call shift+f10key. Finally, result should be placed at Virtual devices as shown below

Android is used by most of the mobile users and is a trending topic of modern technology. It is an open source area of development and is a Linux based OS which acts as middleware and a key mobile application. This OS is designed to use in modern smartphones, e-book readers, set-top boxes, tablets, and televisions as well. Open Handset Alliance created it. In this tutorial, you will learn the basics of Android, and what are its features and categories of applications developed for Android.

What is Android?

Android is an open source software package that was developed primarily to improve the mobile user experience and has now become the best-selling operating system for mobile devices. Android is now a part of Google and the Open Handset Alliance, and the current version of the Android operating system is Oreo (version 8.0), which was released in August 2017.

Features of Android

Android is filled with a lot of features which makes it popular in the world. These are:

Android is a customizable operating system, and therefore users can customize it in their way.
It has an opening screen, quick notification option, stylish yet straightforward UI, etc.
It is an open source application.
A diverse range of applications can be chosen to install and use from the Android Play Store.
It supports Touch-based keyboards.
It has a Customized Home screen.
It provides custom ROMs.
Widgets for better UX.

Why Use Android?

Android provides an extensive developer's community support.
It uses the core Java language for developing applications.
It also provides high marketing.
Application development cost is less.
Good storage and uses a lightweight relational database, SQLite
It provides good security.

Different Genres of Android Applications

There are a wide variety

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