Harnoor
Learn App Development Course by Harnoor with comprehensive video tutorials and hands-on projects.
Meet Your Instructor: Harnoor-Singh
Harnoor Singh is a dedicated app-development instructor and mobile technology expert specializing in helping students of all levels build production-ready mobile applications using Android and modern mobile technologies. With extensive industry experience in mobile app development, Harnoor brings practical insights and real-world expertise to his teaching. His comprehensive courses cover everything from Android fundamentals to advanced app architectures, ensuring students learn both the theoretical concepts and hands-on skills needed to excel as mobile developers. Harnoor's teaching approach emphasizes building complete, industry-standard applications while understanding best practices, design patterns, and modern mobile development workflows. Harnoor's journey as a mobile development educator is driven by his passion for helping students build functional, user-friendly mobile applications that solve real-world problems. Having worked on production mobile applications himself, Harnoor understands the challenges that mobile developers face in industry, from designing intuitive user interfaces to optimizing app performance and ensuring compatibility across different devices. His teaching approach addresses these challenges by focusing on practical, industry-relevant skills and best practices that are used by top app development companies. Harnoor's expertise in Android development is comprehensive and up-to-date. He covers everything from basic Android concepts like activities, fragments, and intents to advanced topics including Jetpack Compose, Kotlin coroutines, dependency injection, and architecture components. His approach to teaching Android emphasizes understanding the Android framework deeply, as he believes that a strong foundation in Android fundamentals is essential for building complex, production-ready applications. Students learn not just how to use Android APIs, but also how the Android system works, how to optimize app performance, and how to follow Android best practices. Android fundamentals are covered extensively in Harnoor's courses, starting with the basics and progressing to advanced topics. Students learn about Android app structure, activities and lifecycles, fragments, layouts, resources, and the Android manifest. Harnoor's practical approach helps students understand how Android apps are built and how different components interact with each other. His courses include numerous hands-on exercises and projects that help students gain experience in building Android applications. Kotlin is the primary programming language used in Harnoor's courses, as it has become the preferred language for Android development. He provides comprehensive coverage of Kotlin, from basics to advanced features including coroutines, extension functions, and sealed classes. Harnoor's practical approach helps students understand how to use Kotlin effectively for Android development and write clean, maintainable code. His courses include numerous examples and exercises that help students develop proficiency in Kotlin. Advanced Android topics are another area where Harnoor's expertise shines. He teaches students how to build modern Android applications using Jetpack components including ViewModel, LiveData, Room database, WorkManager, and Navigation. Harnoor's courses cover topics like MVVM architecture, dependency injection with Dagger or Hilt, reactive programming with RxJava or Kotlin Flow, and testing Android applications. His practical approach helps students understand how to structure Android applications for scalability and maintainability. App architecture is a key focus of Harnoor's teaching, as he believes that good architecture is essential for building production-ready applications. He teaches students how to design app architectures, implement separation of concerns, manage app state, and handle data persistence. Harnoor's courses cover various architectural patterns including MVC, MVP, MVVM, and Clean Architecture, helping students understand when to use each pattern and how to implement them effectively. User interface design is another important aspect of Harnoor's courses. He teaches students how to create beautiful, responsive user interfaces using XML layouts and Jetpack Compose. Harnoor's courses cover topics like material design, custom views, animations, and responsive design that help students build user-friendly applications. His practical approach helps students understand that good UI/UX is essential for app success, and his courses include design principles and best practices. Real-world projects are a cornerstone of Harnoor's teaching approach. He believes that the best way to learn mobile development is by building complete, production-ready applications, and his courses include numerous projects that help students gain hands-on experience. Students work on projects like social media apps, e-commerce apps, and productivity apps, learning to apply Android concepts to build real applications. These projects serve as portfolio pieces and help students gain confidence in their mobile development skills. App performance optimization is another important focus of Harnoor's courses. He teaches students how to optimize app performance, reduce memory usage, improve battery efficiency, and ensure smooth user experiences. Harnoor's practical approach helps students understand that performance is a critical aspect of mobile development, and his courses include techniques and best practices for building fast, efficient Android applications. Harnoor's teaching methodology emphasizes hands-on learning through coding exercises, projects, and challenges. He provides clear explanations, practical examples, and step-by-step guidance that helps students understand Android concepts and apply them effectively. Harnoor's courses are designed to be practical and application-oriented, focusing on skills that are directly applicable in industry. Harnoor's commitment to student success extends beyond course delivery. He provides career guidance, interview preparation resources, and job placement assistance. His courses include modules on Android interview preparation, portfolio development, and career advice, helping students present themselves effectively to potential employers. Many students credit Harnoor not just with teaching them Android development, but with helping them secure positions as Android developers at top tech companies. The success stories from Harnoor's students speak volumes about the effectiveness of his teaching approach. Many students have secured positions as Android developers, mobile app developers, and mobile engineers at top tech companies, startups, and agencies. Harnoor's impact on the mobile development education landscape is significant, and his practical, industry-focused teaching approach has helped thousands of students build successful careers in mobile app development. Through his comprehensive courses, practical teaching approach, and commitment to student success, Harnoor Singh has established himself as one of the most effective and respected mobile development educators, helping students develop the skills and knowledge needed to build production-ready mobile applications and succeed as Android developers in today's competitive job market.
Experience: 5+ years
Students Helped: 20,000+
Specialization: Mobile App Development for Beginners to Advanced
Course Overview
This comprehensive course is designed to take you from foundational concepts to advanced implementation in mobile app development for beginners to advanced. You'll learn through step-by-step project-based learning, real-world apps, beginner-friendly explanations, building real-world projects that demonstrate your skills and enhance your portfolio.
Whether you're looking to start a new career in technology or advance your current skills, this course provides the structured learning path and practical experience you need to succeed in today's competitive tech industry.
Course Curriculum
Course Content
Week 1 Intro to App Development + Android + GitHub gitignore setup
Week 1 Intro to App Development + Android + GitHub gitignore setup
Week 1 Intro to App Development + Android + GitHub gitignore setup Part2
Week 2 | Programming 101
Week 2 | OOPS continued
Open Source Challenge
Q. What is args in main method
Recap so far Week 1 & Week 2
Week3 | Android Nullables-Glide Library-First App Completion
Week 3 | Nullables + Glide Library + Image Button handle + Error handling
MVVM Intro Data passing between pages using Fragments
Passing data in fragments using ViewModel, Interfaces, Lamda function
Intro to App Lifecycle, Fragments Sharing data using ViewModel, Mutables
Week 5 | What is a server, RestAPI, ChatGPT Api Flask + Retrofit
Converting Python server to Docker
Intro to Networking Python + Flask + Azure
Dependency injection + Recycler View + HW
OCR Project completion
async prorgamming - coroutines
Clean code principles + Moneitzing your Android Skills
HW RecyclerView Solve
Recording Wallpaper App HW Async Programmging - 65467b20e4b097220916207f
Debugging our Wallpaper App Project
wallpaper app final
wallpaper project end week 9
Git Tricks and Tips
Mocking Network Calls
Requirements
- Basic computer knowledge
- Internet connection for video streaming
- Code editor (VS Code recommended)
- Motivation to learn and practice
Course Features

Course Details
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