Full 2025 Kotlin Crash Course For Beginners Philipp Lackner 2025-03-19 | In this video I'll teach you everything you need to know to start developing real software with Kotlin.Download IntelliJ: jetbrains.com/idea/download▶️ KOTLIN NEWBIE TO PRO Playlist: youtube.com/playlist?list=PLQkwcJG4YTCRSQikwhtoApYs9ij_Hc5Z9⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Introduction1:30 - Why is Kotlin cool?3:57 - IntelliJ Installation5:15 - Creating the project9:20 - Hello world program11:32 - val and var18:20 - Arithmetic operators22:58 - Comparison operators27:19 - Logical operators32:40 - Console input36:41 - Nullability & null-safe operators47:27 - if conditions55:48 - when expression59:48 - Exceptions & try/catch1:05:30 - Arrays1:16:01 - Loops1:31:10 - Normal functions1:42:03 - Extension functions1:49:07 - Function overloading1:52:25 - Lambda functions2:07:33 - Normal class & data class2:18:28 - Interfaces2:26:14 - Abstract classes2:35:24 - Sealed interface & sealed class2:37:34 - Enum classes2:44:19 - Singletons2:49:29 - Visibility modifiers2:53:06 - Generics
Is Google going even more downhill with Android? - No more side-loading of Android apps Philipp Lackner 2025-09-10 | In this video, I'll share the recent news about Google forbidding side-loading of Android apps in future as well as my own thoughts about it.Last chance: Sign up for Saturday's free KMP online workshop:pl-coding.com/android-workshop?utm_campaign=kmp-workshop&utm_source=youtube&utm_medium=video ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_
The 2nd Software Revolution Nobody Is Noticing Philipp Lackner 2025-09-07 | While everyone has their eyes on AI, there's a second thing going on, specifically for us mobile developers...Register for my free KMP workshop to get pure value over 1.5-2h and then be among the first who can get this bundle:pl-coding.com/workshop?utm_campaign=kmp-workshop&utm_source=youtube&utm_medium=video&cmc_strip=utm
So Many New Kotlin & Compose Features 😱 - Mobile Dev News September 2025 Philipp Lackner 2025-09-03 | In this video of mobile dev news, you'll hear of the most trending news about mobile development, especially in the Kotlin & Android ecosystem. There are many changes in Kotlin, KMP, CMP and Jetpack Compose!👉 Save a free spot for my workshop "Mastering the Compose & Kotlin Multiplatform Tech Stack to Own the Industry of 2026":pl-coding.com/workshop?utm_campaign=kmp-workshop&utm_source=youtube&utm_medium=video ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm
How You Use an AI Coding Agent the RIGHT Way For Mobile Development - My Best Tips Philipp Lackner 2025-08-31 | In this video, I'll showcase my best tips when it comes to working with AI agents, specifically Junie, inside Android Studio.Try out Junie yourself:jetbrains.com/junie00:00 - Introduction00:23 - The problem of web based AIs1:20 - Junie & why I like it2:20 - What is an AI agent?3:36 - Use case 1: Learning10:27 - Use case 2: Coding13:56 - My view on AI for coding
How to Deep Link Into iOS & Android With Compose Multiplatform Philipp Lackner 2025-08-27 | In this video, I'll show you how you can set up your Kotlin Multiplatform (KMP) app to support deep links. You'll learn how you can achieve that your users click on a link in the browser which opens in your app while passing in data from the URL.Learn regular KMP & CMP tips in my WhatsApp broadcast channel:whatsapp.com/channel/0029VbAkm0r47Xe5ry7Oa50q⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/CMPDeepLinking
SQL Databases With JPA Persistence - Spring Boot 4 Basics With Kotlin Philipp Lackner 2025-08-24 | In this video, we'll explore talking to a PostgreSQL instance hosted on Supabase via JPA in a Kotlin Spring Boot project.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-kotlin-basics
Custom Design Systems In Jetpack Compose - THESE Are My Best Practices Philipp Lackner 2025-08-20 | In this video, I'll share what counts when creating your own design system in Compose (Multiplatform). Depend on Material3 components? What is part of your design system and what not? How to reuse them? I'll answer all of that.Join my 12-week Android & KMP mentorship program and get prepared for the industry on an 1-to-1 basis:pl-coding.com/drop-table-mentoring 🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_
Validating Requests With Spring Validation - Spring Boot 4 Basics With Kotlin Philipp Lackner 2025-08-17 | In this video, you'll learn how you can validate incoming request bodies with the help of the Spring Validation framework. You'll also learn how you can define your own validation constraints with custom annotations.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-kotlin-basics
Profiles, Configuration & Environment Variables - Spring Boot 4 Basics With Kotlin Philipp Lackner 2025-08-13 | In this video, you'll learn about the application.yml file in Spring Boot and how you can define different property values based on different application profiles, like development and production.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-kotlin-basics
Models & Mappers With Presentation/Domain/Data - In-Depth Guide Philipp Lackner 2025-08-10 | In this video you'll learn about the different types of models and mappers in a typical presentation, domain & data layer architecture on Android or KMP.Learn regular KMP & CMP tips in my WhatsApp broadcast channel:whatsapp.com/channel/0029VbAkm0r47Xe5ry7Oa50qJoin my 12-week Android & KMP mentorship program and get prepared for the industry on an 1-to-1 basis:pl-coding.com/drop-table-mentoring ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/MappersGuide
Dependency Injection, Autowiring & Beans - Spring Boot 4 Basics With Kotlin Philipp Lackner 2025-08-06 | In this video, you'll learn about Spring Boot's built in mechanism to create class instances and automatically wire them together. Specifically, you'll learn about the Component, Service, Repository, Configuration & Bean annotations.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-kotlin-basics
New Kotlin Version, Cool KMP Changes & More - Android News August 2025 Philipp Lackner 2025-08-04 | In this Android news episode, I'll go over cool Kotlin related changes for both the Kotlin language and Kotlin/Compose Multiplatform.💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_
How Easily Attackers Can Fake Requests to Your Server - And What You Can Do Against It Philipp Lackner 2025-07-30 | In this video we'll take a closer look at how we can make sure a client device using your app is genuine, so they can't manipulate the requests being made to your server.Checkout Guardsquare's App Attestation solution:guardsquare.com/threat-monitoring00:00 - What is app attestation?00:46 - Real-world examples4:18 - Practical example for app attestation8:07 - How it works technically12:15 - Guardsquare web dashboard15:28 - Play Integrity vs. Guardsquare16:47 - Which apps should stick to it?
Response Handling & HTTP Status Codes - Spring Boot 4 Basics With Kotlin Philipp Lackner 2025-07-27 | In this video you'll learn about the different ways to respond with clear HTTP status codes that tell the client what went wrong about their request.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-kotlin-basics
REST Controllers & HTTP Requests - Spring Boot 4 Basics With Kotlin Philipp Lackner 2025-07-23 | In the second part of the Spring Boot 4 with Kotlin playlist, you'll learn about building a first functional REST controller to handle incoming requests with different HTTP methods in a CRUD-like fashion.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-kotlin-basics
How to Implement Pagination In Compose Multiplatform (KMP) Philipp Lackner 2025-07-20 | In this video you'll learn about a generic approach to paginate data from a remote API or local database. Learn regular KMP & CMP tips in my WhatsApp broadcast channel:whatsapp.com/channel/0029VbAkm0r47Xe5ry7Oa50qJoin my 12-week Android & KMP mentorship program and get prepared for the industry on an 1-to-1 basis:pl-coding.com/drop-table-mentoring ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video here:github.com/philipplackner/CMP-Pagination
Project Creation & First Hello World App - Spring Boot 4 Basics With Kotlin Philipp Lackner 2025-07-16 | In this video, you'll learn about what Spring Boot and a backend is, why Kotlin is a great language for it and how you can build your very first hello world URL endpoint for it. ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-kotlin-basics➡️ IntelliJ IDEAjetbrains.com/de-de/idea➡️ Spring Initializrstart.spring.io00:00 – Intro01:14 – What is a Back End?02:49 – What is Spring Boot?04:18 – Why Build Spring Boot Backends with Kotlin?06:12 – Build Your First "Hello World" URL Endpoint
THIS Brand New Attribute Makes Compose Texts Fully Responsive (Auto-Scaling!) Philipp Lackner 2025-07-13 | You'll learn how you can use the new autoTextSize attribute from Compose texts to build responsive texts that automatically scale between a minimum and maximum font size.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/AutoTextComposable
Stateful vs. Stateless Composables In Jetpack Compose? - Everything You Need to Know Philipp Lackner 2025-07-09 | In this video, I'll compare Composable UI components that contain local state with remember and mutableStateOf with stateless Composables that receive UI state from the outside, typically from a ViewModel.➡️ Check out The Android Essentials Bundle:pl-coding.com/android-essentials-bundle⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/StatefulStatelessComposables
Introduction to Spring Boot for Android Developers In 15min Philipp Lackner 2025-07-06 | You're an Android or KMP developer, but were always interested in backend development? In this video I show you the core idea of Spring Boot with Kotlin and how easily you can get started with it as a Kotlin developer.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/SpringBootPagination📺 Full 2025 Backend Dev Crash Course for Beginners With Spring Boot youtube.com/watch?v=tXC9DQRWHUQ
New Stable Android Studio, Firebender AI & More - Android News July 2025 Philipp Lackner 2025-07-02 | In this episode of Android News I go over the most relevant changes of Android & KMP from June. ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Intro 00:18 - Android Studio Narwahl | 2025.1.1 IS Now Stable 01:55 - Compose Multiplattform 1.9.0-Alpha02 03:54 - Android 16 is now Available 04:57 - Firebender - Cursor for Android Studio
Koin Annotations In Compose Multiplatform - Beginners Guide to Compile-Time Dependency Injection Philipp Lackner 2025-06-29 | In this course, you'll learn about compile-time dependency injection using Koin for Android, iOS and Desktop targets in Compose Multiplatform. You'll learn about modules, ViewModels, platform-specific dependencies, as well as qualifiers.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/CMP-KoinAnnotationsGuideKotlin Multiplatform Wizardkmp.jetbrains.com/?android=true&ios=true&iosui=compose&includeTests=true00:00 - Introduction00:44 - What is Dependency Injection?04:25 - Real DI vs. Service Locator10:07 - Koin Annotations Setup18:50 - Creating sample dependencies26:48 - Modules & providing dependencies34:57 - Platform-specific dependencies40:58 - ViewModel module45:23 - Qualifiers48:10 - Trying it out on all platforms
✅ The Full Android 16 Migration Checklist - Your Todos For API Level 36 Philipp Lackner 2025-06-25 | In this video, I'll share every major change about Android 16 with you so afterwards you'll clearly know what you have to adjust in your code.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_➡️ The Full Guide to Supporting Edge-to-Edge On Android 15+ (Compose + XML)youtube.com/watch?v=gIUe2OOzohw00:00 - Intro 00:38 - Bumping the SDK levels 00:57 - Edge-to-edge enforcement 01:54 - Back Gesture 03:27 - Elegant Font APIs deprecated 04:00 - Scheduled Executor Service 05:01 - Adaptive Layouts 06:34 - Health and Fitness Permissions 07:18 - Android 16 introduces 2 new Intents
The Full Jetpack Compose Responsive UI Crash Course Philipp Lackner 2025-06-22 | In this video, you'll learn about all kinds of different ways to make your Compose Multiplatform UI dynamic and responsive while minimizing duplicate code.👇 Practice with real-world app dev challenges in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:hgithub.com/philipplackner/CMP-Theming/tree/responsiveness
How to Upload & Download Files In Spring Boot - Full Production Guide Philipp Lackner 2025-06-18 | In this video, you'll learn how you can receive and process Multipart files in Spring Boot with Java to store these on the local file system along with metadata being stored in a MongoDB instance. You'll learn about best practices when it comes to handling files server-side.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/SpringBootFileUploadDownload
Full Guide to Material3 Theming in Compose Multiplatform Philipp Lackner 2025-06-15 | In this video, you'll learn how you can set up your Material3 theme in Compose Multiplatform with colors, fonts and shapes.👇 Practice with real-world app dev challenges in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/CMP-Theming/tree/theming➡️ Kotlin Multiplatform Wizardkmp.jetbrains.com/?android=true&ios=true&iosui=compose&includeTests=true
Simple Spring Boot Pagination With Pageable & Data Repositories Philipp Lackner 2025-06-11 | In this video, I'll show you how you can set up your Spring Boot Java backend to respond with paginated data from a MongoDB instance. This also works with other DBs.📺 Full 2025 Backend Dev Crash Course for Beginners With Spring Boot (Kotlin, JWT Auth, MongoDB):youtube.com/watch?v=tXC9DQRWHUQ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/SpringBootPagination
Beginners Crash Course to the New Navigation 3 Library (Android & KMP) Philipp Lackner 2025-06-08 | Another nav library from Google? In this video, I'll go over Navigation 3 and why it's actually not so bad to have another one 🙂 🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/Navigation3Guide
Tech Interviews, Talks & More - My Day at KotlinConf 2025 In Copenhagen Philipp Lackner 2025-06-04 | See my impressions from KotlinConf 2025 including interviews with interesting people from the tech community. Thanks to JetBrains for sponsoring this video.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring
Exciting KMP Changes, New Android Studio & More - Android News June 2025 Philipp Lackner 2025-06-01 | In this episode of Android News I'll go over the most relevant news for Android & KMP developers from May 2025.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_📺 Full 2025 Backend Dev Crash Course for Beginners With Spring Boot (Kotlin, JWT Auth, MongoDB)youtube.com/watch?v=tXC9DQRWHUQ📺Hot Reload In Compose Multiplatform (CMP) - THIS Is All You Have to Knowyoutube.com/watch?v=AEzisl8I0VU00:00 - Intro 00:11 - Android Studio Meerkat Feature Drop | 2024.3.2 01:52 - Compose Multiplattform 1.8.005:30 - JetBrains is entering into a strategic partnership with Spring Boot06:43 - New Google Play Requirement 08:34 - New Navigation Library
Hot Reload In Compose Multiplatform (CMP) - THIS Is All You Have to Know Philipp Lackner 2025-05-28 | In this video you'll learn how to set up the brand new hot reload feature for Compose Multiplatform projects. Hot reload in CMP allows you to instantly refresh your UI during runtime when you change your code.CMP project generator:kmp.jetbrains.com 💻 Work on KMP coding challenges, ask all your questions & more in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_medium=video&utm_campaign=default&utm_content=hot-reload-video&cmc_strip=utm ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_
1h Spring Boot Logging Crash Course For Beginners (Config, Remote Logs, JSON Logging & More) Philipp Lackner 2025-05-21 | In this video you'll learn everything you need to know about logging the right way on Spring Boot. This crash course will be split into these parts:Console loggingChanging default logger config (+ log setup for dev & prod)Remote logging with Grafana LokiRotating JSON file logsAfterwards, you'll be able to know what to log where and how to set up your rules to only see what you need to see.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/SpringBootCrashCourse📺 Full 2025 Backend Dev Crash Course for Beginners With Spring Boot (Kotlin, JWT Auth, MongoDB)youtube.com/watch?v=tXC9DQRWHUQ00:00 - Introduction2:00 - Console logging7:05 - Configuring what to log when13:14 - Grafana Loki overview16:24 - Console logger config with Logback24:10 - Grafana Loki log appenders44:20 - Attaching custom Loki metadata53:46 - Rotating JSON file logs1:01:17 - Production logging best practices
How You Get Your Compose UI From Hundreds of Recompositions to Almost Zero Philipp Lackner 2025-05-18 | In this video I'll share some common realistic examples of how Compose UI can recompose more often than it should - and what you can do against that. Please note, that these tips shouldn't be applied blindly, but only if you really face performance issues, since optimizing recompositions is one of the trickiest things to do when it comes to UI performance.🚨 Last chance: Try out the Mobile Dev Campus & save 50% on your first month (only today!):pl-coding.com/campus?utm_source=youtube&utm_medium=video&utm_campaign=rl-campus&utm_content=recomposition-video&cmc_strip=utm Deep-dive into Compose with the Jetpack Compose Masterclass:pl-coding.com/compose-masterclass?utm_source=youtube&utm_medium=video&utm_campaign=default&utm_content=recomposition-video&cmc_strip=utm⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_
5 Anti-Patterns With Coroutines & Flows You MUST Avoid! Philipp Lackner 2025-05-14 | In this video I'll share 5 big anti-patterns with you when it comes to using coroutines & Flows.🔥 Get the new Architecture Masterclass:pl-coding.com/architecture-masterclass?utm_source=youtube&utm_medium=video&utm_campaign=rl-campus&cmc_strip=utm 🧑🎓 Or get it for free by joining the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_medium=video&utm_campaign=rl-campus&cmc_strip=utmCheck the Kotlin Coroutines & Flows Masterclass:pl-coding.com/coroutines-masterclass?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Intro 00:21 - Anti-Pattern 102:46 - Anti-Pattern 208:37 - Anti-Pattern 312:37 - Anti-Pattern 419:08 - Anti-Pattern 5
Master Android Architecture With My New 14h Course (FREE for Campus Members!) Philipp Lackner 2025-05-11 | New course is out fully focused on building Android apps with a bullet-proof architecture! And the best? As a Campus member, you can get this new course FOR FREE! 🎓 Get the course here:pl-coding.com/architecture-masterclass?utm_campaign=rl-campus&utm_source=youtube&utm_medium=video&utm_content=campus-rl-video&cmc_strip=utm🔥 Become a Campus member and get the course for FREE + 10% permanent discount on your Campus subscription:pl-coding.com/campus?utm_campaign=rl-campus&utm_source=youtube&utm_medium=video&utm_content=campus-rl-video&cmc_strip=utm 00:00 – Intro00:23 – What’s the focus of the new course?01:56 – The app you'll build03:35 – Create a memo button, moods, and more inside your EchoJournal08:57 – Option 1: One-time invest09:17 – Option 2: The Mobile Dev Campus + the idea behind12:16 – Courses included in the Campus12:38 – App challenges in the Campus13:49 – Community & access to me15:05 – The new subscription plans15:57 – The Ultimate plan16:18 – Real student results16:41 – The exclusive launch deal16:31 – The current offer
My Top 10 UX Quick Tips to Instantly Improve the User-Friendliness of Your Mobile App Philipp Lackner 2025-05-07 | In this video I'll share 10 super useful tips you can instantly apply to your app to improve its UX.👉 Sign up for my FREE live workshop about design patterns: pl-coding.com/android-workshop?utm_medium=video&utm_campaign=campus-rl&utm_source=youtube&utm_content=ux-quick-tips&cmc_strip=utm00:00 - Intro00:39 - Tip 101:41 - Tip 2 02:35 - Tip 303:20 - Tip 4 + 5 04:59 - Tip 606:24 - Tip 7 07:34 - Tip 8 09:46 - Tip 9 11:09 - Tip 10
Generate Whole Apps With Firebase Studio, New Kotlin Features & More - Android News May 2025 Philipp Lackner 2025-05-04 | In this episode of Android News, I go over lots of crazy changes to the Android and Kotlin ecosystem, such as Firebase Studio, Google Play Console changes, new Kotlin features, IntelliJ updates or brand new Jetpack Compose utility 🙌👉 Sign up for my FREE live workshop about design patterns: pl-coding.com/android-workshop?utm_medium=video&utm_campaign=campus-rl&utm_source=youtube&utm_content=android-news-may-2025&cmc_strip=utm00:00 - Intro 00:25 - Design Patterns Workshop 00:43 - Update on context Parameters 04:34 - Google Play Changes 06:39 - Update IntelliJ 2025.109:10 - New Room Version 2.7.0 10:01 - Android 16 Beta 4 Release 11:14 - Compose April’25 Update13:31 - Firebase Studio
Why 99% Are Using Coroutine Dispatchers WRONG! Philipp Lackner 2025-04-30 | 🎯 Get professional app dev challenges, join a committed community and more in the Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Intro00:26 - Two bad examples01:40 - Differences between coroutines and threads03:23 - Dispatchers.IO & Dispatchers.Default04:17 - Which one is better for what and why?
Spring Boot Profiles: Manage Dev, Staging & Production Environments Easily Philipp Lackner 2025-04-27 | In this video you'll learn about profiles in Spring Boot and how you can use them to create different application configs depending on the environment (dev, staging, prod) and how you can create beans just for a certain environment.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/spring-boot-profiles
The 3 Biggest Coding Mistakes I Made In My Android Projects Philipp Lackner 2025-04-23 | We're all doing things that end up not being ideal. In this video, I'll share mistakes I made in the past which led to issues later on, so you don't have to make them.🎯 Get professional app dev challenges, join a committed community and more in the Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Intro 00:18 - Mistake 1 09:42 - Mistake 2 15:45 - Mistake 3
Full Guide to Testing APIs on Android & KMP With Ktor MockEngine Philipp Lackner 2025-04-20 | In this video you'll learn how you can work with Ktor MockEngine to mock API calls for your tests. It also includes a guide on integration testing in general.✅ Get a deep-dive into testing on Android: ➡️ Mastering Automated Testing of Industry-Level Android Apps: pl-coding.com/testing?utm_source=youtube&utm_medium=video&utm_campaign=easter-sale-2025&cmc_strip=utm ➡️ The Kotlin Coroutines & Flows Masterclass: pl-coding.com/coroutines-masterclass?utm_source=youtube&utm_medium=video&utm_campaign=easter-sale-2025&cmc_strip=utm⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Get the source code for this video on GitHub:github.com/philipplackner/TestingWithKtor
Ktor vs. Spring Boot - Which Backend Framework Is Best For Mobile Developers? Philipp Lackner 2025-04-16 | In this video I compare two popular backends among Kotlin developers: Spring Boot and Ktor.I will compare them in four categories to help you pick the backend that fits to you.🐣 Only until Monday - 25% Easter discount on ALL Android & KMP premium courses:pl-coding.com/premium-courses?utm_source=youtube&utm_campaign=easter-sale-2025&utm_medium=video&cmc_strip=utm 🧑🎓 Check the Android Essentials Bundle I mentioned in the video (25% off):pl-coding.com/android-essentials-bundle?utm_source=youtube&utm_campaign=easter-sale-2025&utm_medium=video&cmc_strip=utm ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Intro 01:06 - Core Differences 03:52 - Maturity06:22 - Ease of use20:32 - Personal Experience 24:40 - Outro
Clean Architecture: The ONE Change That Transforms Use Cases From Terrible to Super Useful Philipp Lackner 2025-04-13 | In this video I go over why 99% of Android devs misunderstand use cases which leads to an overcomplicated useless architecture and how you can avoid that.🐣 25% Easter discount on ALL Android & KMP premium courses:pl-coding.com/premium-courses?utm_source=youtube&utm_campaign=easter-sale-2025&utm_medium=video&cmc_strip=utm 🧑🎓 Check the Android Essentials Bundle I mentioned in the video (25% off):pl-coding.com/android-essentials-bundle-testing?utm_source=youtube&utm_campaign=easter-sale-2025&utm_medium=video&cmc_strip=utm ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_
Full Guide to Auto-Deploy a Spring Boot Backend (VPS Server, GitHub Actions, HTTPS, Security) Philipp Lackner 2025-04-09 | In this video, you'll learn how you can deploy a JAR-based backend (Spring Boot, Ktor, etc.) to a self-hosted VPS instance from Hetzner for just 3$/month. I'll walk you through creating the VPS instance, connecting to it via SSH, securing it via a custom user account, setting up and running a systemd service, setting up Nginx as a reverse-proxy with our own SSL certificate and custom domain and lastly how we can automate this deployment via a GitHub Actions pipeline when pushing to the master branch.Get 20€ worth of Hetzner credits to create your VPS instance:https://hetzner.cloud/?ref=j8CRwH4G9FmrGet the systemd notes.service config file:github.com/philipplackner/SpringBootCrashCourse/blob/master/deployment/notes.serviceGet the Nginx config file for sites-available:github.com/philipplackner/SpringBootCrashCourse/blob/master/deployment/nginx-notes-config⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoringRegular programming advice on my Instagram page: instagram.com/_philipplackner_Join my Discord server:discord.gg/cwQbmUstEu00:00 - Introduction3:07 - VPS Hosting7:36 - Setting up the VPS19:14 - Copying the SSH key for existing servers23:52 - Creating an admin user35:55 - Creating an SSH alias38:58 - Installing Java40:53 - Pushing the JAR to our server46:06 - Systemd service setup58:42 - SSL & Custom domain setup1:08:08 - GitHub Actions automation1:18:26 - Permitting service relaunch without sudo1:20:11 - Creating a GitHub repository secret1:21:40 - Testing everything1:27:35 - Configuring a firewall
Freelancing as Mobile Dev vs. Full-time Job - Which Path Is Best For YOU? Philipp Lackner 2025-04-06 | In this video I compare the freelance route with becoming an employee in four categories: Earnings potential, security, freedom and skill development. ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Intro 00:46 - Earning Potential03:15 - Security 05:28 - Freedom 10:04 - Skill Development 12:05 - Summary 13:52 - Outro
Android 16 Features, Android Studio Meerkat, New APIs & More - Android News April 2025 Philipp Lackner 2025-04-02 | Another episode of Android News in which I summarize the most relevant news for Android & Kotlin developers, so you don't need to look it up yourself.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_Window insets video:youtube.com/watch?v=gIUe2OOzohwCMP Crash Course:youtube.com/watch?v=WT9-4DXUqsM00:00 - Intro 00:39 - Ktor 3.1.0 Release 03:34 - Android 16 Beta 2 & 312:35 - TrustedTime API 14:44 - Window size classes 16:05 - Compose Multiplatform BackHandler16:28 - Kotlin Multiplatform drops support for fleet 17:21 - Stable release of Android Studio Meerkat19:01 - Android Studio Narwhal Canary 20:04 - Outro
Full 2025 Backend Dev Crash Course for Beginners With Spring Boot (Kotlin, JWT Auth, MongoDB) Philipp Lackner 2025-03-30 | Get an introduction to building a CRUD backend that allows users to register and login and then save notes in a MongoDB instance. This crash course uses Kotlin and covers REST APIs from the absolute basics up to building a fully working secured backend. ⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-coursesDownload IntelliJ:jetbrains.com/idea/downloadMongo Atlas registration:mongodb.com/products/platform/atlas-database💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoringRegular programming advice on my Instagram page: instagram.com/_philipplackner_Join my Discord server:discord.gg/cwQbmUstEuGet the source code for this video here:github.com/philipplackner/SpringBootCrashCourseKotlin Crash Course: youtu.be/dzUc9vrsldM?si=8vGs792MWd4_cEyX00:00 Prerequisites1:43 - What even is a REST API?7:25 - What is a backend framework?9:55 - What we will build11:02 - Creating a Spring Boot project15:20 - Project roundtrip21:18 - Mongo Atlas setup33:14 - Saving notes to MongoDB1:06:00 - Base setup for security config1:12:55 - Checking notes in Mongo Atlas1:14:24 - Spring's Bean mechanism1:17:30 - Deleting notes1:21:05 - Setting up the user collection1:30:12 - JWT generation & verification1:57:27 - User registration & login2:35:55 - Responding with correct status codes2:44:57 - Field validation2:52:47 - Trying it out & fixing last bugs
10 Things I Wouldve Taught My Younger Self About Development Philipp Lackner 2025-03-26 | In this video I share 10 pieces of advice with you that will help you to do better as a developer in your overall career.Save one of the last 2 spots for the mentoring:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=mentoring-2025-1 🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_00:00 - Intro00:21 - 1. Requirements are not requirements 01:28 - 2. Nobody is waiting for you 02:12 - 3. Perception Matters more than reality 03:07 - 4. Code reviews rarely catch bugs but are great for learning 05:07 - 5. Don’t take a senior as the sole source of truth 05:53 - 6. Best Practices are rarely universal 07:16 - 7. People online agree on 90% of things and clash over the remaining 10 % 09:36 - 8. Focus on personality over hard skills 11:47 - 9. Don’t base your enjoyment on just writing code 14:19 - 10. Exchange ideas with others 15:55 - Outro
How to Refactor Legacy Android Code With a Clear Step-By-Step Approach Philipp Lackner 2025-03-23 | In this video I'll show you the most common anti-patterns in Android codebases and how you can refactor your codebase to follow proper architectural standards again with a clear step-by-step plan.⭐ Courses with real-life practices⭐ Save countless hours of time⭐ 100% money back guarantee for 30 days⭐ Become a professional Android developer now:pl-coding.com/premium-courses?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utm🎓 Become an industry-ready Android developer in the Mobile Dev Campus:pl-coding.com/campus?utm_source=youtube&utm_campaign=default&utm_medium=video&cmc_strip=utm🎁 Get my FREE 4.5h Best Practice Guide to Android Architecture:pl-coding.com/best-practice-guide?utm_campaign=default&utm_medium=video&cmc_strip=utm💻 Let me be your mentor and become an industry-ready Android developer in 10 weeks:pl-coding.com/drop-table-mentoring?utm_source=youtube&utm_medium=video&utm_campaign=default&cmc_strip=utmRegular programming advice on my Instagram page: instagram.com/_philipplackner_
