This document provides information about the Unit Converter Android application. It discusses that Android is a software stack for mobile devices that includes an operating system and applications. It also describes that an Android application runs on the Android platform, typically on a smartphone or tablet. The document outlines that the primary objective of the Unit Converter app is to allow users to convert various units, including length, temperature, currency, and weight. It was developed in Java using the Android Studio IDE. It provides descriptions of key aspects of the app, including activities, splash screens, toasts, spinners, layout files, EditText fields, and key methods like onCreate() and findViewById(). Screenshots of the app interface are also included.

1. UNIT
CONVERT
ER
FOR ANDROID

2. What is Android
 Android is a software stack for mobile devices
that includes an operating system, middleware
and key applications.

3. Different Versions

4. What is an Android Application
 An Android application is a software
application running on the Android platform.
Because the Android platform is built for
mobile devices, a typical Android app is
designed for a Smartphone or a tablet PC
running on the Android Operating System.

5. Android Studio
 Android Studio is an Integrated Development
Environment (IDE) for developing android
applications for the Android platform.
 It was announced on May 16, 2013 at the
Google I/O conference by Google's Product
Manager, Katherine Chou.

6. Unit Converter
 Objective
The primary objective of Unit Converter
Application is to allow its users to make most
used unit conversions like km to mile, foot to
inch, Celsius to Fahrenheit and many more
including currency and weight conversions
other than basic length and temperature
conversions.

7. Unit Converter
 Tools and Languages Used
The project is developed in Java Programming
Language using the Android Studio Integrated
Development Environment or IDE.

8. Unit Converter
 Description of some functions and terms
Activity
• Activity is a Java code that supports a screen or UI.
Splash Screen
• Splash screen is an activity that will show for set time when
our app is starting and after set time period the user is
redirected to application main screen or main activity.

9. Unit Converter
Toast
• A toast provides simple feedback about an operation in a
small popup. It only fills the amount of space required for the
message and the current activity remains visible and
interactive.
Spinners
• Spinners provide a quick way to select one value from a set.
In the default state, a spinner shows its currently selected
value. Touching the spinner displays a dropdown menu with
all other available values, from which the user can select a
new one.

10. Unit Converter
Layout Resource File
• A layout resource defines the architecture for the UI in an
Activity or a component of a UI.

11. Unit Converter
EditText
 A EditText field allows the user to type text into our app. It can
be either single line or multi-line. Touching a text field places
the cursor and automatically displays the keyboard.

12. Unit Converter
OnCreate()
 When the user selects our app icon from the Home screen,
the system calls the onCreate() method for the activity in our
app that we've declared to be the "launcher" (or "main")
activity. This is the activity that serves as the main entry point
to our app's user interface. It is called on initial creation of the
fragment & non graphical initializations are done here.
findViewById()
• Android findViewById () is a very commonly used function,
located in the android.app.Activity package. This function is
used to find a view that was identified by the id attribute from
the XML that was processed in onCreate(Bundle) .

13. Unit Converter

14. Unit Converter
 Screenshots of the App

15. Unit Converter

16. THANK YOU…