![Features of Android
Studio
Gradle-based build support
Template-based wizards to create common Android
designs and components
A rich layout editor that allows users to drag-and-drop UI
components, option to preview layouts on multiple screen
configurations[18]
Built-in support for Google Cloud Platform, enabling
integration with Firebase Cloud Messaging
Android Virtual Device (Emulator) to run and debug apps
in the Android studio.](https://image.slidesharecdn.com/androidsession-221014071744-98bb9552/85/Android-Session-pdf-16-320.jpg)
Android Session.pdf
- 2. Kotlin Advantages of Kotlin Kotlin's Basics Android Development in Kotlin Course ASJ Today's Agenda
- 3. What is Kotlin ? Kotlin is is a cross-platform, statically typed, general- purpose programming language OOPS + FP It was introduced by JetBrains in 2011. At Google I/O 2017, Google announced first-class support for Kotlin on Android and announced Kotlin as an official language for android development
- 4. History of Kotlin 2010 Project Started 2016 Kotlin 1.0 2017 Officially Supported Language in Android 2019 Android Becomes Kotlin first 2020 Kotlin 1.4 Preview
- 5. Why Kotlin ? Kotlin is designed to interoperate fully with Java, and the JVM version of kotlin's standard library depends on the Java class library Google made Kotlin as first preference for developing apps 30% less code as compared to Java Time spent on reviews and maintenance is less 60% professional Android developers use Kotlin
- 7. Kotlin is an programming language that combines object-oriented programming and functional features into a unique platform main() function - Entry point of the kotlin application function declaration -- > fun keyword main() function
- 8. Variables in Kotlin Kotlin provides 2 types of Variables var - mutable value val - immutable value Keyword Variable name Data Type Value of the variable
- 9. Control Flow if....else Statements The if/else statement executes a block of code if a specified condition is true. If the condition is false, another block of code can be executed
- 10. Control Flow When Statement Kotlin when can be used either as an expression or as a statement, simply like a switch statement in Java. If it is used as an expression, the value of the first matching branch becomes the value of the overall expression.
- 11. Loops for Loop a for-loop is a control flow statement for specifying iteration, which allows code to be executed repeatedly
- 12. Loops While Loop The while loop loops through a block of code as long as a specified condition is true.
- 13. Loops do...while Loop The do..while is similar to the while loop with a difference that the this loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.
- 14. Functions Kotlin is a statically typed language, hence, functions play a great role in it. A function is a block of code which is written to perform a particular task. Built - in functions Kotlin provides a number of built-in functions, we have used a number of buil-in functions in our examples. For example print() and println() are the most commonly used built-in function which we use to print an output to the screen.
- 15. What is Android Studio ? Android Studio is the official Integrated Development Environment (IDE) for android application development. It is built on JetBrains' IntelliJ IDEA software and designed specifically for Android development. It is available for download on Windows, macOS and Linux based operating systems
- 16. Features of Android Studio Gradle-based build support Template-based wizards to create common Android designs and components A rich layout editor that allows users to drag-and-drop UI components, option to preview layouts on multiple screen configurations[18] Built-in support for Google Cloud Platform, enabling integration with Firebase Cloud Messaging Android Virtual Device (Emulator) to run and debug apps in the Android studio.
- 17. Steps to Install Android Studio Prerequisites : -> 64-bit Operating System(for Windows and linux) -> Java installed on your system -> To check Go to command prompt and type java -version
- 28. Menu Bar Tool Bar Project Window Code Editor Window MAIN WINDOW OVERVIEW New – Creates new Android Application Open – Opens existing Android Application Open Recent – Shows the list of recently opened projects and clicking on one of them would open the project. ANDROID FILE MENU Android Studio Walk through In addition to Text Editor, Activity Layout files could be edited using XML Design Editor. The UI elements could be drag and dropped to the Layout at center. ANDROID XML DESIGN EDITOR ANDROID TOOL BAR
- 34. App components Activities Services Broadcast receivers Content providers App components are the essential building blocks of an Android app. Each component is an entry point through which the system or a user can enter your app. There are four different types of app components:
- 35. Activity An Activity represents a single screen with a user interface It deals with the UI and the user interactions to the screen. In other words, it is a User Interface that contains activities. These can be one or more depending upon the App. It starts when the application is launched. In an android app at least one activity is always present which is known as MainActivity.
- 36. Main Activity
- 37. XML XML - EXTENSIBLE MARKUP LANGUAGE XML is a markup language much like HTML used to describe data. It is derived from Standard Generalized Markup Language(SMGL). XML tags define the data and used to store and organize data. It’s easily scalable and simple to develop. In Android, the XML is used to implement UI- related data, and it’s a lightweight markup language that doesn’t make layout heavy. XML only contains tags, while implementing they need to be just invoked.
- 38. Basic XML Syntax Closing Tag Opening Tag
- 39. XML Code in design
- 40. In Android Studio you can run your code either in an physical device or in an android emulator For running on physical device : -> Enable Developer options in your android device -> Enable USB debugging in developer options -> Connect your phone to your laptop/desktop via a USB cable -> Run your code in your device Run your code
- 41. The Android Emulator simulates Android devices on your computer so that you can test your application on a variety of devices and Android API levels without needing to have each physical device. The emulator provides almost all of the capabilities of a real Android device. You can simulate incoming phone calls and text messages, specify the location of the device, simulate different network speeds, simulate rotation and other hardware sensors, access the Google Play Store, and much more. Android Emulator
- 42. Create and manage virtual devices Select Tools > AVD Manager. Click AVD Manager in the toolbar. An Android Virtual Device (AVD) is a configuration that defines the characteristics of an Android phone, tablet, Wear OS, Android TV, or Automotive OS device that you want to simulate in the Android Emulator. The AVD Manager is an interface you can launch from Android Studio that helps you create and manage AVDs. To open the AVD Manager, do one of the following:
- 43. Thank You!