Android Dev - Lecture 2 - Intro to Kotlin

Lecture 2 for CS194A about the fundamentals of Android development. We'll use Kotlin to build Android apps in this class. If you're running into an issue with referencing views in Kotlin code, this video explains the fix (use findViewById): https://youtu.be/tiI5T17AD54 ➤ Kotlin exercises (spend 10 minutes on this): https://gist.github.com/rpandey1234/afaa7a61131543cb0cd53bbf64bb0708 ➤ Learn Kotlin in 12 Minutes: https://youtu.be/iYrgWO2oibY ➤ Android Studio shortcuts: https://www.youtube.com/playlist?list=PL7NYbSE8uaBBUYfGl1GaKY8GCp5E1Ypkg ➤ Playlist with all lectures: https://www.youtube.com/playlist?list=PL7NYbSE8uaBDcLkbXsQADdvBnVbavonGn Learn basic, foundational techniques for developing Android mobile applications and apply those toward building a single or multi page, networked Android application. The goal for this class is to build several Android apps together, empowering you to extend them, create your own apps, and build a portfolio. Topics include: the Android ecosystem, introduction to Kotlin, UI elements, lists, multiple activities and intents, working with APIs, and cloud storage. ======== Hi! I’m Rahul, a software engineer with a passion for teaching. I went to Stanford, was a founding engineer at a startup, and have worked at various companies across Silicon Valley. I’m currently an Android Developer at Facebook and teach an Android class at Stanford. Would love to connect with you! This channel is about tech (especially Silicon Valley), combining tactical how-to guides with interviews. 📹 YouTube: https://www.youtube.com/c/RahulPandeyRkp 📝 LinkedIn: https://www.linkedin.com/in/rpandey1234/ 🐦 Twitter: https://twitter.com/rpandey1234 📸 Instagram: https://www.instagram.com/rpandey1234/ 📂 Github: https://github.com/rpandey1234/ Timestamps: 0:00 - Logistics 1:09 - Finish the Bigger Number app 12:25 - Refactoring the code 19:38 - Kotlin overview 29:26 - Kotlin code samples 38:16 - Kotlin type inference 40:05 - Immutability 45:10 - Null safety 50:49 - Kotlin practice time