Advanced Kotlin (The Course)
Course Info
Course Material
- Notes about the course
- Project with exercises
- Quiz 13 attempts allowed
- Generic variance modifiers
- List variance
- Consumer variance
- Function types
- The Covariant Nothing Object
- The Covariant Nothing Class
- Variance modifier limitations
- UnsafeVariance annotation
- Variance modifier positions
- Star projection
- Summary
- Exercise: Usage of generic types
- Quiz 2100 attempts allowed
- Exercise: Generic Response
- Quiz 3100 attempts allowed
- Exercise: Generic Consumer
- Quiz 4100 attempts allowed
- Interface delegation
- Interface delegation
- The delegation pattern
- Delegation and inheritance
- Kotlin interface delegation support
- Wrapper classes
- The decorator pattern
- Intersection types
- Limitations
- Conflicting elements from parents
- Summary
- Exercise: ApplicationScope
- Quiz 5100 attempts allowed
- Property delegation
- Property delegation
- How property delegation works
- Other
getValueandsetValueparameters - Implementing a custom property delegate
- Provide a delegate
- Property delegates in Kotlin stdlib
- The
notNulldelegate - Exercise: Lateinit delegate
- Quiz 6100 attempts allowed
- The
lazydelegate - Exercise: Blog Post Properties
- Quiz 7100 attempts allowed
- The
observabledelegate - The
vetoabledelegate - A map as a delegate
- Review of how variables work
- Summary
- Exercise: Mutable lazy delegate
- Quiz 8100 attempts allowed
- Kotlin Contracts
- Kotlin Contracts
- The meaning of a contract
- How many times do we invoke a function from an argument?
- Implications of the fact that a function has returned a value
- Using contracts in practice
- Summary
- Exercise: Coroutine time measurement
- Quiz 9100 attempts allowed
- Part 2: Kotlin on different platforms
- Java interoperability
- Java interoperability
- Nullable types
- Kotlin type mapping
- JVM primitives
- Collection types
- Annotation targets
- Static elements
- JvmField
- Using Java accessors in Kotlin
- JvmName
- JvmMultifileClass
- JvmOverloads
- Unit
- Function types and function interfaces
- Tricky names
- Throws
- JvmRecord
- Summary
- Exercise: Adjust Kotlin for Java usage
- Quiz 10100 attempts allowed
- Using Kotlin Multiplatform
- Using Kotlin Multiplatform
- Multiplatform module configuration
- Expect and actual elements
- Possibilities
- Multiplatform libraries
- A multiplatform mobile application
- ViewModel class
- Platform-specific classes
- Observing properties
- Summary
- Exercise: Multiplatform LocalDateTime
- Quiz 11100 attempts allowed
- JavaScript interoperability
- JavaScript interoperability
- Setting up a project
- Using libraries available for Kotlin/JS
- Using Kotlin/JS
- Building and linking a package
- Distributing a package to npm
- Exposing objects
- Exposing Flow and StateFlow
- Adding npm dependencies
- Frameworks and libraries for Kotlin/JS
- JavaScript and Kotlin/JS limitations
- Summary
- Exercise: Migrating a Kotlin/JVM project to KMP
- Quiz 12100 attempts allowed
- Part 3: Metaprogramming
- Reflection
- Reflection
- Hierarchy of classes
- Function references
- Parameter references
- Property references
- Class reference
- Serialization example
- Referencing types
- Type reflection example: Random value
- Kotlin and Java reflection
- Breaking encapsulation
- Summary
- Exercise: Function caller
- Quiz 13100 attempts allowed
- Exercise: Object serialization to JSON
- Quiz 14100 attempts allowed
- Exercise: Object serialization to XML
- Quiz 15100 attempts allowed
- Exercise: DSL-based dependency injection library
- Quiz 16100 attempts allowed
- Annotation processing
- Annotation processing
- Your first annotation processor
- Hiding generated classes
- Summary
- Exercise: Annotation Processing
- Quiz 17100 attempts allowed
- Kotlin Symbol Processing
- Kotlin Symbol Processing
- Your first KSP processor
- Testing KSP
- Dependencies and incremental processing
- Multiple rounds processing
- Using KSP on multiplatform projects
- Summary
- Exercise: Kotlin Symbol Processing
- Quiz 18100 attempts allowed
- Kotlin Compiler Plugins
- Compiler frontend and backend
- Compiler extensions
- Popular compiler plugins
- Making all classes open
- Changing a type
- Generate function wrappers
- Example plugin implementations
- Summary
- Static Code Analysers
- Static Code Analysers
- What are Static Analysers?
- Types of analysers
- Formatters
- Code Quality Analysers
- Data-Flow Analysers
- Code Manipulation
- Embedded vs Standalone
- Kotlin Code Analysers
- Kotlin Compiler
- IntelliJ IDEA
- ktlint
- ktfmt
- Android Lint
- detekt
- Setting up detekt
- detekt Rules and Rulesets
- Configuring detekt
- Incremental Adoption
- Writing your first detekt Rule
- Setting up your rule project
- Coding your rule
- Using your rule
- Rules with type resolution
- Conclusion
- Exercise solutions
Instructors
Marcin Moskala is an experienced developer and Kotlin trainer. He is the founder of the Kt. Academy, Kotlin GDE, an official JetBrains partner for teaching Kotlin, and author of the books Effective Kotlin, Kotlin Coroutines, and Android Development with Kotlin.
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