Android App Development with Kotlin: Build a Calculator

Want to break into mobile app development but do not know where to start? Building a practical, real-world project is the best way to master the essentials of Android and Kotlin. This text-based course guides you through the process of designing, coding, and testing a fully functional calculator application. You will gain a solid understanding of mobile UI design, event handling, and state management while writing clean, modern Kotlin code. What you'll learn: Understand foundational Android concepts, project structure, and the Kotlin application lifecycle; Design a responsive user interface using modern layout principles; Implement calculator logic, handling basic arithmetic operations and edge cases with Kotlin; Apply modern Kotlin features such as null safety, smart casts, and clean code structure; Manage application state to ensure your calculator behaves correctly during orientation changes; Practice debugging techniques to find and resolve common runtime errors in your code. You will start with the absolute basics of Android development, setting up your environment and exploring key terminology. From there, you will step through building the user interface, writing the core calculation logic in Kotlin, and refining the app for a smooth user experience. This course is designed for absolute beginners to Android development and those new to Kotlin. No prior mobile programming experience is required. Start reading today and build your very first functional Android application.