Calculator– PART 2

BySharmilee J Java Trainer

Mazenet Solution

Objectives

• Android Studio• Features • System Requirements• Jdk installation• Android studio 2.1 installation• Project structure• Creating an application in Android Studio• Developing CALCULATOR App

What is an Android?

• Android is an open source and Linux-based  Operating System for mobile devices such as smart

phones and tablet computers.

• Android was developed by the Open Handset Alliance, led by Google, and other companies.

Features of Android• Beautiful UI• Connectivity• Storage• Media Support• Messaging• Web Browser• Multi-touch• Multitasking• Resizable widgets• Multi-language• GCM• Wi-Fi Direct• Android Beam

Why Android?

Android Architecture

Android Studio

Introduction

• Android Studio is the official IDE for android application development.

• It works based on IntelliJ IDEA

• You can download android studio from the given below link

• https://developer.android.com/studio/index.html

• For MAC• For windows• For linux

Features of Android Studio IDE

• A flexible Gradle-based build system• A fast and feature-rich emulator• A unified environment where you can develop

for all Android devices• Instant Run to push changes to your running

app without building a new APK• Extensive testing tools and frameworks• C++ and NDK support

System Requirements

For Windows• Microsoft® Windows® 7/8/10 (32- or 64-bit)• 2 GB RAM minimum, 8 GB RAM recommended• 2 GB of available disk space minimum,

4 GB Recommended (500 MB for IDE + 1.5 GB for Android SDK and emulator system image)

• 1280 x 800 minimum screen resolution• Java Development Kit (JDK) 8• For accelerated emulator: 64-bit operating system and Intel®

processor with support for Intel® VT-x, Intel® EM64T (Intel® 64), and Execute Disable (XD) Bit functionality

For MAC

• Mac® OS X® 10.8.5 or higher, up to 10.11.4 (El Capitan)• 2 GB RAM minimum, 8 GB RAM recommended• 2 GB of available disk space minimum,

4 GB Recommended (500 MB for IDE + 1.5 GB for Android SDK and emulator system image)

• 1280 x 800 minimum screen resolution• Java Development Kit (JDK) 6

Software needed

• Java JDK1.8• Java Runtime Environment (JRE) 8• Android Studio 2.1

Java Installation

Set Path on Environment variables

• JAVA_HOMEC:\Program Files\Java\jdk1.8.0_51

Android Studio Installation

Project Structure

Calculator App

activity_main.xml (layout file)

MainActivity.java (java file)

Android Virtual Device

Emulator

• The Android SDK includes a virtual mobile device emulator that runs on your computer.

• The emulator lets you prototype, develop and test Android applications without using a physical device.

Emulator

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