Spring Framework 5.2 has been officially released, bringing deep Kotlin 1.3 integration, enhanced reactive support for WebFlux, RSocket, and data stores like R2DBC, MongoDB, and Neo4j, along with a comprehensive list of new features and improvements for developers.
Hamber Luo, Android lead at Jike app, will present at Droidcon Shanghai 2019 on Android Jetpack Permissions, sharing his extensive Android experience, a code example, and practical advice for quickly adopting Jetpack and Kotlin in mobile development.
This article explores the key differences between Kotlin and Java for Android development, covering constructors, init blocks, val versus final, static equivalents with companion objects, top‑level declarations, arrays, collections, sequences, visibility modifiers, and includes practical exercises.
Google and Udacity have launched two free Kotlin video courses that teach beginners the language fundamentals and guide them through building Android apps, covering Jetpack components, popular libraries, and coroutines, ultimately enabling the creation of over ten practical applications.
This guide walks Android engineers through adding Kotlin support to new or existing projects, explains Kotlin's variable declarations, null‑safety features, type inference, val/var usage, visibility modifiers, class inheritance, open/final semantics, and safe casting, providing concise code examples and practical tips.
This article introduces Kotlin DSL concepts, demonstrates real‑world applications such as Trip.com payment network encapsulation, overseas payment SDK Gradle scripts, Anko layouts, and provides a step‑by‑step example for creating a custom DSL, highlighting benefits, trade‑offs, and best practices for mobile development.
Based on Dice Insights’ analysis of TIOBE, RedMonk and internal hiring data, this article highlights five programming languages—Swift, Kotlin, Python, Groovy, and TypeScript—that are expected to experience rapid growth in the coming years, explaining the reasons behind each trend.
This article explains the code types involved in synchronous remote calls, demonstrates how blocking IO leads to callback hell, and shows how to simplify the programming model using Java CompletableFuture, AsyncHttpClient, and Project Reactor’s reactive streams to efficiently retrieve city data.
This article reviews the evolution of front‑end programming languages, discusses why extreme attitudes toward language choice hinder productive discussion, explains how platform constraints shape language selection, examines the strengths and weaknesses of JavaScript, Java, and Objective‑C, and predicts increasing convergence and cross‑platform trends among modern front‑end languages.
This article examines Kotlin Multiplatform's evolution, detailing native compilation, cinterop bindings, platform libraries, bidirectional Swift/Objective‑C interop, and practical cross‑platform implementations for logging, file I/O, and SQLite, while outlining future directions and tooling recommendations.
June’s PYPL ranking shows Python, Java, JavaScript, C#, and PHP leading the market, with Python’s share rising sharply, Java and PHP slipping, Kotlin gaining momentum, and PHP losing adoption despite its web development strengths, offering developers data‑driven guidance on language choices.
The article explains how resource obfuscation with andResGuard removes META‑INF service files needed for the Android Main dispatcher, causing coroutines to silently fail after withContext calls, and shows that preserving the META‑INF/services directory restores proper coroutine execution.
Version 1.3.30 of Kotlin introduces Apple support, stable coroutines, KAPT incremental annotation processing, unsigned array extensions, Kotlin/Native platform expansions, and IDE improvements across IntelliJ, CLion, and AppCode, while also detailing configuration steps and performance optimizations for Android developers.
RedMonk's Q1 2019 language ranking, based on GitHub and Stack Overflow data, reveals JavaScript topping the list, modest shifts among the top 20, and highlights notable moves such as TypeScript's rise and Kotlin's surge into the top‑20.
This article compares Java and Kotlin for Android development, outlining each language's advantages, drawbacks, market share, and feature differences to help developers decide which technology best fits their projects.
This article explains how Android's fragment system introduced in API Level 11 can be enhanced using the open‑source FragmentOperator library to tag, group, skip, and enforce single‑instance fragments, providing Kotlin code examples and practical scenarios for mobile app navigation.
QQ Music’s Android team modernized the app for Android 9 Pie by integrating full‑screen displays, native notifications, and enhanced memory profiling, while re‑architecting its dual‑process playback system to cut memory use up to 50%, and adopting Kotlin to shrink code by 25% and halve null‑pointer crashes, delivering a smoother listening experience.
This article uses a cooking metaphor to explore how Kotlin improves Android development by offering safer null handling, concise extension functions, powerful overloads, and expressive lambdas, illustrated with real code examples and practical tips for large‑scale projects.
This article explains how AliExpress’s engineering team tackles rapid releases, international collaboration, and performance challenges by adopting thorough micro‑service decomposition, Docker‑based DevOps standards, SRE stability, Kotlin for cleaner code, and Function‑as‑a‑Service to boost efficiency and scalability.
This article provides a step‑by‑step tutorial on creating IntelliJ IDEA plugins, covering environment preparation, project creation, defining actions, updating plugin.xml, handling UI threads, launching background tasks, using ProgressManager, working with the Virtual File System and PSI, and leveraging the platform's UI components.
This article walks readers through the complete process of creating an IntelliJ IDEA plugin—from installing the SDK and setting up a project, to defining actions, handling UI threads, using background tasks, and exploring core concepts such as VFS and PSI—providing practical code examples and references for further learning.
This guide walks you through Gradle’s core concepts, from installing the tool and initializing a project to creating custom tasks, managing plugins and dependencies, using the Kotlin DSL, and leveraging the Gradle Wrapper for reliable builds across environments.
This article introduces Kotlin as a JVM‑based language, explains why it is chosen for Android development, details its main features such as null safety, data classes, and lambda expressions, compares compilation performance with Java, and provides practical JD‑specific integration steps, configuration tips, common pitfalls, and real‑world usage examples.
This article introduces Kotlin as a JVM‑based language, explains why it is chosen for Android development, details its concise syntax, null‑safety, data‑class and lambda features, demonstrates interoperability with Java, analyzes compilation performance, and provides practical JD mobile‑app integration steps and common troubleshooting tips.
The article examines Kotlin’s hidden runtime overheads—such as companion‑object constants, default synchronized lazy delegates, boxing‑prone array types, and temporary progression objects in loops—and describes how the author built a custom Android Lint plugin (KLint) that parses Kotlin files, defines detectors, integrates with Gradle and IDE, and enforces performance‑aware coding standards through CI checks.
This article provides a comprehensive guide to Android's Navigation component, covering its purpose, setup steps, XML graph configuration, fragment navigation, data passing methods, deep link handling, nested navigation, and an analysis of the underlying source code with practical Kotlin examples.
This article provides a comprehensive guide to Android Jetpack's Navigation component, covering its purpose, setup with Gradle, XML graph configuration, fragment navigation code, data passing methods, deep‑link handling, and an analysis of its underlying source classes such as NavHostFragment and NavController.
This article introduces essential Kotlin language features—such as null‑safety, the safe‑call and Elvis operators, triple‑quoted strings, powerful when expressions, object declarations, observable properties, and function types—demonstrating how they enable safer, more concise Android development compared to traditional Java code.
This article introduces Android WorkManager, explaining its background, architecture, key API features, usage patterns, constraints, cancellation methods, and provides Kotlin code examples for defining workers, creating work requests, and managing tasks across various Android versions.
This article introduces a lightweight event notification framework for Android, explaining its design, core interfaces, event manager implementation, usage examples with login/logout scenarios, lifecycle considerations, duplicate event checks, and compares it to traditional observer patterns.
The article summarizes the author's three‑day experience at QCon 2018, highlighting technical sessions on Java advancements, evolutionary architecture, adaptive goal management, real‑time performance measurement, distributed databases, reactive system upgrades, Kotlin coroutines, and a microservice governance platform, while also reflecting on overall conference insights.
December 2017’s TIOBE Index shows Java, C, and C++ retaining the top three spots, while Python and C# hold fourth and fifth, and highlights the emerging competition between legacy C and newcomer Kotlin, offering insights into language popularity trends for developers and project planners.
This article compares Kotlin and Java for Android development, highlighting Kotlin's lower migration cost, reduced technical risk, language conveniences such as null‑safety, data classes, extension functions, functional programming, JavaScript interop, potential pitfalls, and step‑by‑step setup instructions.
Through a series of Gradle‑based benchmarks on clean, daemon‑enabled, and incremental builds, this study compares Java and Kotlin compilation times, revealing that while Java is slightly faster on cold builds, Kotlin matches or exceeds Java in typical incremental scenarios.
A recent Realm survey of around 100,000 developers shows Kotlin’s rapid rise in Android apps, predicting it will surpass Java as the primary language by the end of 2018, driven by Google’s official support and Kotlin’s modern, concise syntax.
This article provides a comprehensive overview of Kotlin, covering its basic syntax, key language features such as static typing, type inference, functional and object‑oriented support, its design philosophy of practicality, conciseness and safety, seamless Java interoperability, and its applications in server‑side and Android development together with tooling and compilation details.
This article explains Kotlin's generic type system, collection interfaces, variance with in/out keywords, collection initialization methods, and the extensive set of operators, providing code examples and implementation details to help developers master Kotlin's core language features.
This article explains Kotlin's function syntax, special return types Unit and Nothing, nested functions, operator overloading, infix expressions, closures, self‑executing closures, lambda expressions, higher‑order functions, and inline functions, illustrating each concept with clear code examples.
This article explains Kotlin's class extension functions, highlights pitfalls of static resolution, demonstrates smart casts, describes companion objects and singleton patterns, and shows how to implement dynamic proxies and pseudo‑multiple inheritance with practical code examples for Android development.
This article introduces Kotlin's fundamentals, explains how to configure development environments and Gradle builds, details core language syntax and features, demonstrates Kotlin‑Java interoperation, and showcases the Anko library for Android development, providing a comprehensive guide for engineers transitioning from Java to Kotlin.
This article compares how Kotlin and Swift define variables and properties, highlighting differences in syntax, type inference, constants versus mutable variables, and the handling of stored and computed properties with getter and setter implementations.
This article examines Kotlin’s rise after Google I/O 2017, its multi‑platform compilation capabilities, key language features such as immutability, reduced boilerplate, null‑safety, and seamless Java interoperability, while offering practical insights for Android and cross‑platform mobile developers.
On June 17 in Hangzhou, Alibaba partnered with Huawei and the Android Green Alliance to host an Android developer salon where experts presented the Atlas containerization framework, discussed Android O features, Kotlin adoption, AR/VR and AI impacts, and explored future trends and green, secure mobile app standards.
The article reviews Google I/O 2017, highlighting Android's shift to Kotlin, the introduction of Android O features, the launch of AI‑driven services such as Google Lens, Assistant, and Home, and the broader move from a mobile‑first to an AI‑first strategy.
This article introduces Kotlin fundamentals for developers, covering variable declarations, control flow statements such as if, when, and loops, smart type inference, null-safety, function definitions with default parameters, varargs, extension functions, and provides practical code examples to help newcomers quickly adopt Kotlin.
This tutorial introduces Kotlin, explains its advantages over Java, guides you through setting up IntelliJ IDEA or Android Studio with the Kotlin plugin, and walks you through creating and running both a simple Hello Kotlin program and an object‑oriented example, while covering coding style recommendations.
This tutorial provides Java programmers with a concise side‑by‑side guide to Kotlin syntax, covering variable declarations, functions, static members, arrays, varargs, ternary alternatives, main methods, object instantiation, property accessors, lazy initialization, and class reflection, all without delving into advanced language features.
This tutorial demonstrates how to build an Android login interface using Kotlin, covering class inheritance, nullable variable declarations, lambda listeners, network requests, and an extension function that adds a toast method to all Activity subclasses, with full source code examples.
This article provides Android developers with practical guidance on using Kotlin instead of Java, covering basic syntax, data classes, singletons, activity navigation, Retrofit with OkHttp, and RxJava to streamline development and improve productivity.
This article introduces core Kotlin language features—including function definitions, nullable types and null‑checking, the use of the in keyword for ranges and collections, type checking with is, and the when expression—providing code examples and explanations for Android developers.
Google’s 2017 I/O announcement made Kotlin a first‑class Android language, and this article explores how Kotlin’s Java interoperability, lambda support, coroutines, and null‑safety can reshape Android development, while also critiquing legacy utility classes and encouraging developers to adopt modern Kotlin features.
The article compares Swift and Kotlin, highlighting their similarities and differences for developers familiar with either language, and argues that programming languages are merely tools that should be chosen based on platform needs rather than personal bias.
This article shares the most frequent Kotlin-related issues encountered in Android projects—including IDE conversion bugs, DexGuard obfuscation crashes, debugging difficulties, missing ternary operators, and other language quirks—along with practical solutions and code examples to help developers avoid them.
The article introduces Kotlin, explains why it gained sudden popularity after Google’s I/O announcement, shares the author’s experience of adopting Kotlin in large Android projects, discusses its impact on bug rates and developer productivity, and encourages developers to explore the language responsibly.
This article explores Kotlin's rise as a first‑class Android language, highlighting its concise syntax, null‑safety, extension functions, functional programming features, seamless Java interoperability, performance parity, and practical tips for teams transitioning from Java to Kotlin.
This article introduces Kotlin as a first‑class language for Android, explains why developers should adopt it, and provides a step‑by‑step guide to setting up Android Studio for Kotlin development, including plugin installation, project conversion, and configuration details.
This article explores Kotlin’s origins, concise syntax, null‑safety, extension functions, functional features, seamless Java interoperability, performance parity with Java, and growing adoption in Android development, highlighting why developers are rapidly switching to this modern language.
The article describes a large‑scale Android architecture refactor that introduces interface‑driven programming, dependency injection, clear layer and role separation, and incremental migration across iterations to improve modularity, compile speed, maintainability, and horizontal scalability.
The article clarifies that Android MVVM is an architectural pattern distinct from Google’s DataBinding tool, contrasts MVC and MVP shortcomings, outlines MVVM’s View, Model, and ViewModel layers with detailed responsibilities and sample RxJava/Retrofit code, and recommends using a global Messenger for decoupled ViewModel communication to achieve low‑coupling, testable, data‑driven UI development.
This article compares Java, Groovy, Scala, and Kotlin for Android development by examining minimal dependencies, code snippets for view lookup, click listeners, callbacks, community support, and preliminary metrics such as line count and compile speed, concluding that further analysis is needed.
