Android studio 3 - Create hello world App in Kotlin | Summary and Q&A

TL;DR

Learn how to create a simple Hello World app in Android Studio 3 using Kotlin, including converting existing Java code to Kotlin.

Key Insights

• 😒 Android Studio 3 supports Kotlin natively, allowing developers to use the language without the need for additional plugins.
• 👨‍💻 Converting existing Java code to Kotlin is made easy with the "Convert Java files to Kotlin" feature in Android Studio.
• 🍞 The Anko library provides convenient functions for Android development in Kotlin, such as displaying toast messages.
• 📼 The video showcases the process of setting up a new Android project, configuring build files, and adding UI elements to the app.
• 😀 The presenter highlights the increasing adoption of Kotlin in popular apps like Uber and Pinterest.
• 👻 Combining Java and Kotlin in an Android project allows developers to leverage the advantages of both languages.
• 😀 The video briefly mentions other projects, such as a React Native login app, to showcase the presenter's ongoing work.

Transcript

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Questions & Answers

Q: What is the main goal of the video?

The main goal of the video is to guide viewers in creating a simple Hello World application in Kotlin using Android Studio 3 and adding a button that displays a toast message.

Q: Can existing Java code be converted to Kotlin?

Yes, the video demonstrates how to convert Java code to Kotlin by using the "Convert Java files to Kotlin" feature in Android Studio.

Q: What is the significance of using Anko library?

The Anko library simplifies Android app development in Kotlin by providing various functions and utilities, such as displaying toast messages.

Q: Is it possible to combine Java and Kotlin in an Android project?

Yes, the video emphasizes that it is possible and beneficial to combine the power of both Java and Kotlin in Android development, as demonstrated through the use of Kotlin syntax and features.

Summary & Key Takeaways

• This video demonstrates how to create a basic Hello World app in Android Studio 3 using Kotlin and shows how to convert Java code to Kotlin.

• The presenter also points out the benefits of using Kotlin and discusses the importance of serving the user regardless of the programming language.

• The video showcases the process of setting up a new project, configuring the build files, adding a button to the app, and utilizing the Anko library for displaying a toast message.