Introduction to Learn Kotlin Flow
Overview of the Project
The "Learn Kotlin Flow" project is designed for individuals eager to dive into Kotlin Flow. This project serves as a valuable resource primarily for those new to Kotlin Flow, offering practical examples frequently utilized in Android projects. The essence of the project is to provide a hands-on learning experience through real-world examples to familiarize users with Kotlin Flow and its applications.
About the Creator
Amit Shekhar, the co-founder of Outcome School, is the mind behind this project. An IIT alumnus from the class of 2014, Amit has been instrumental in helping numerous developers land rewarding jobs in tech by imparting his knowledge and teaching skills. His contributions extend beyond individual mentoring to aiding tech companies in solving complex problems and developing open-source libraries widely used by top companies. Amit is passionate about knowledge-sharing through open-source projects, blogs, and video content.
Learning Pathway
The project strategically begins with conceptual learning. Amit Shekhar has curated a detailed series of blogs focusing on the Flow API in Kotlin:
- Mastering Flow API in Kotlin
- Creating Flow Using Flow Builder in Kotlin
- Terminal Operators in Kotlin Flow
- Cold Flow vs Hot Flow
- StateFlow and SharedFlow
- Long-running Tasks in Parallel with Kotlin Flow
- Retry Operator in Kotlin Flow
- Retrofit with Kotlin Flow
- Room Database with Kotlin Flow
- Kotlin Flow Zip Operator for Parallel Multiple Network Calls
- Instant Search Using Kotlin Flow Operators
- CallbackFlow - Callback to Flow API
- Exception Handling in Kotlin Flow
- Unit Testing ViewModel with Kotlin Flow and StateFlow
After grasping the theoretical aspects through these resources, users are encouraged to clone, build, and run the project to start learning Kotlin Flow by directly engaging with examples.
Key Learnings from the Project
Users will discover how to integrate Kotlin Flow into Android projects. They will learn to execute various tasks, including:
- Performing background tasks using Kotlin Flow.
- Executing tasks in series and parallel.
- Leveraging operators like filter, map, reduce, flatMapConcat, and zip.
- Exception handling and using onCompletion.
- Implementing retry mechanisms with Retry Operators and Exponential Backoff.
- Combining Kotlin Flow with Retrofit and Room Database.
- Choosing between cold and hot flows, and integrating StateFlow and SharedFlow.
- Writing unit tests for ViewModels using Kotlin Flow and StateFlow.
Practical Examples for Android Development
The project includes a range of practical examples linking to Kotlin Flow in Android development, covering numerous scenarios such as:
- Making single or multiple network calls in series and parallel.
- Handling room database operations.
- Managing long-running tasks.
- Employing catch and emitAll for error management.
- Completion handling and task reduction.
- Implementing search features using various Flow operators such as debounce and filter.
- Exploring retry techniques and their implementations.
How to Get Involved
To contribute or enhance this project, developers can submit pull requests directly. The project openly invites contributions to improve and expand upon existing resources.
By immersing in the "Learn Kotlin Flow" project, developers have the opportunity to expand their skills in modern Android development practices, gaining practical knowledge and enhancing their proficiency in Kotlin Flow. Aspiring developers are encouraged to showcase their appreciation by starring the project on GitHub.