Kotlin Tutoial

• Introduction to Kotlin
• Kotlin Environment setup for Command Line
• Kotlin Environment setup with Intellij IDEA
• Hello World program in Kotlin

Basics

• Kotlin Data Types
• Kotlin Variables
• Kotlin Operators
• Kotlin Standard Input/Output
• Kotlin Type Conversion
• Kotlin Expression, Statement and Block

Control Flow

• Kotlin if-else expression
• Kotlin while loop
• Kotlin do-while loop
• Kotlin for loop
• Kotlin when expression
• Kotlin Unlabeled break
• Kotlin labeled break
• Kotlin unlabeled continue
• Kotlin labeled continue

Array & String

• Kotlin Array
• Kotlin String

Functions

• Kotlin functions
• Kotlin | Default and Named argument
• Kotlin Recursion
• Kotlin Tail Recursion
• Lambdas Expressions and Anonymous Functions
• Kotlin Inline functions
• Kotlin infix function notation
• Kotlin Higher-Order Functions

Collections

• Kotlin Collections
• Kotlin list : Arraylist
• Kotlin list : listOf()
• Kotlin Set : setOf()
• Kotlin mutableSetOf()
• Kotlin hashSetOf()
• Kotlin Map : mapOf()
• Kotlin Hashmap

OOPs Concept

• Kotlin Class and Objects
• Kotlin Nested class and Inner class
• Kotlin Setters and Getters
• Kotlin | Class Properties and Custom Accessors
• Kotlin Constructor
• Kotlin Visibility Modifiers
• Kotlin Inheritance
• Kotlin Interfaces
• Kotlin Data Classes
• Kotlin Sealed Classes
• Kotlin Abstract class
• Enum classes in Kotlin
• Kotlin extension function
• Kotlin generics

Exception Handling

• Kotlin Exception Handling | try, catch, throw and finally
• Kotlin Nested try block and multiple catch block

Null Safety

• Kotlin Null Safety
• Kotlin | Type Checking and Smart Casting
• Explicit type casting

Regex & Ranges

• Kotlin Regular Expression
• Kotlin Ranges

Java Interoperability

• Java Interoperability - Calling Kotlin from Java
• Java Interoperability - Calling Java from Kotlin

Miscellaneous

• Kotlin annotations
• Kotlin Reflection
• Kotlin Operator Overloading
• Destructuring Declarations in Kotlin
• Equality evaluation in Kotlin
• Comparator in Kotlin
• Triple in Kotlin
• Pair in Kotlin
• Kotlin | apply vs with

Android

• Kotlin Android Tutorial
• How to create project in Android Studio using Kotlin
• How to install Android Virtual Device(AVD)
• Android Animations in Kotlin
• Android Fade In/Out in Kotlin
• Android Menus
• Android progress notifications in Kotlin
• Android Project folder Structure

How to install Android Virtual Device(AVD)

To clarify, Android Virtual Device (AVD) is not specific to Kotlin. AVD is a device configuration for the Android emulator, allowing you to model various devices. Here's how you can set up an AVD in Android Studio:

1. Start Android Studio

If you have a project opened, you can still follow these steps. If not, just start Android Studio and wait for it to initialize.

2. Open the AVD Manager

There are a couple of ways to do this:

• Click on the "AVD Manager" icon in the toolbar, usually represented by a small phone icon.
• Go to Tools > AVD Manager from the top menu.

3. Create a New Virtual Device

• Click on "Create Virtual Device" at the bottom left of the AVD Manager window.
• In the "Select Hardware" screen, choose a device definition. This defines the screen size, resolution, and other hardware properties. For beginners, choosing one of the Pixel devices might be a good start.
• Click "Next".

4. Choose a System Image

• Here you'll select the Android version and system image you want to run on your AVD.
• For the most part, you'll likely want to choose a version with the "Play Store" icon, as this allows you to install apps from the Google Play Store.
• Click on "Download" next to the system image you want to use if it's not already downloaded. Accept any license agreements and wait for the download to finish.
• Once the image is downloaded, select it and click "Next".

5. Configure the AVD

• Here you can name your AVD, choose orientation, scale, RAM size, and other options.
• You can mostly use the default settings if you're unsure.
• Once you've made your choices, click "Finish".

6. Start the Emulator

• Back in the AVD Manager, you'll see your newly created AVD. Click on the green play button to start the emulator.
• The emulator will boot up, and you'll see a virtual Android device running on your computer.

7. Deploy Apps to the Emulator

Now that your emulator is running, when you build and run apps in Android Studio, you can deploy them to this emulator just like you would with a physical device.

Remember, the first time you start an emulator, it may take a while to boot up. Subsequent starts will usually be faster. Also, emulators work best when hardware acceleration (such as Intel HAXM on Intel machines) is installed on your computer.

1. Setting up Android emulator in Android Studio: The Android emulator is set up through the AVD Manager in Android Studio. Choose the device configuration, system image, and other settings to create an emulator.

2. How to create virtual devices for Android testing:

   // Sample code for creating an AVD programmatically (not recommended in real projects)
   avdManager.createVirtualDevice(
       avdManager.getDefaultHardware(),
       avdManager.getDefaultSystemImage(),
       "MyVirtualDevice"
   )
   

3. Configuring Android Virtual Device for app development: Configure AVD settings based on your app requirements. You can specify device orientation, screen size, RAM, and other hardware characteristics.

4. Troubleshooting AVD installation issues in Android Studio: Common issues include missing system images or incorrect configurations. Ensure that you have the necessary components installed using the SDK Manager. Verify that the system images are compatible with your development machine.

5. Emulator setup for Android development in Android Studio: The emulator is set up automatically when you create and run an AVD in Android Studio. Make sure to select the appropriate system image and configuration for your app.

6. AVD setup for Kotlin Android development: Kotlin and Java are interoperable in Android development. Configure your AVD as you would for Java development. Kotlin code can seamlessly run on the AVD.