woowacourse-teams/2025-mul-kkam
Jul 2025 – Mar 2026
4 Months active
Languages Used
CSSGradleJavaJavaScriptKotlinTOMLTypeScriptXML
Technical Skills
API IntegrationAdapter PatternAndroidAndroid DevelopmentAndroid TestingAsset Management
hwannow
PROFILE
Hwannow
Over several months, contributed to the woowacourse-teams/2025-mul-kkam repository by architecting and delivering a robust Android application focused on water intake tracking and user onboarding. Leveraging Kotlin, Retrofit, and MVVM, implemented features such as Kakao-based authentication, onboarding flows, custom UI components, and a comprehensive API integration layer. Enhanced reliability through Result-based API handling, error management, and test-driven development. Refactored onboarding and data models to support new cup management features, improved notification and widget experiences, and maintained code quality with linting and modularization. The work emphasized maintainability, user experience, and scalable architecture across both frontend and backend integrations.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
576Total
Bugs
30
Commits
576
Features
233
Lines of code
90,993
Activity Months4
Your Network
1138 peopleShared Repositories
7
Work History
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary focused on delivering key authentication feature enhancements and repository alignment for business value. Delivered User Authentication System improvements with Kakao login integration and refresh token handling by merging the latest development changes into develop-an for woowacourse-teams/2025-mul-kkam. This enhances sign-in reliability, supports secure token refresh workflows, and positions the project for future security audits. No major bugs were reported this month; the emphasis was on feature delivery and codebase consolidation across branches.
1 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary focused on delivering key authentication feature enhancements and repository alignment for business value. Delivered User Authentication System improvements with Kakao login integration and refresh token handling by merging the latest development changes into develop-an for woowacourse-teams/2025-mul-kkam. This enhances sign-in reliability, supports secure token refresh workflows, and positions the project for future security audits. No major bugs were reported this month; the emphasis was on feature delivery and codebase consolidation across branches.
March 2026
September 2025
24 Commits • 10 Features
Sep 1, 2025September 2025: Onboarding-focused delivery and code quality improvements. Implemented a comprehensive Onboarding Cup Settings flow (screens, ViewModel, bottom sheet, and completion flow) and refactored onboarding API/data structures to support cup setup. Added basic cup retrieval and preset models/API, while refining UI/UX and code quality (lint rules, MainActivity cleanup, toast alignment) to improve reliability and maintainability. These changes reduce onboarding friction, stabilize data contracts, and enable faster future iterations.
September 2025
24 Commits • 10 Features
Sep 1, 2025September 2025: Onboarding-focused delivery and code quality improvements. Implemented a comprehensive Onboarding Cup Settings flow (screens, ViewModel, bottom sheet, and completion flow) and refactored onboarding API/data structures to support cup setup. Added basic cup retrieval and preset models/API, while refining UI/UX and code quality (lint rules, MainActivity cleanup, toast alignment) to improve reliability and maintainability. These changes reduce onboarding friction, stabilize data contracts, and enable faster future iterations.
August 2025
392 Commits • 166 Features
Aug 1, 2025August 2025 (Month: 2025-08) delivered a cohesive set of authentication, onboarding, history, and API reliability improvements across the MulKkam app, with a strong focus on business value and system resilience. Key features included Kakao login integration with API/UX refinements and updated authorization flow, onboarding UX improvements (completion flag, toast-based feedback, and completion dialog), and onboarding data management with server synchronization. History screens were enhanced with contextual UI (Today label, year display) and related metrics; a custom SegmentedProgressBarView was introduced for clearer progress visualization. The core API layer was hardened via Result-based responses, improved error handling, and reduced reliance on verbose interceptors, enabling safer retries and more predictable failures. Startup and onboarding navigation were refined, including splash/entry state logic and backward navigation improvements. Notifications and home widget experiences were strengthened with unread counts, robust notification UI, and widget interaction improvements. Across UI/UX, code quality, and testing, lint/style updates, test suite refinements, and fixture adjustments supported speedier delivery and higher quality. Business value delivery: faster user login with Kakao integration, clearer onboarding flows reducing drop-off, more accurate user data and progress tracking, and a more reliable notification/goal-tracking experience. Technical achievements demonstrate expertise in Kotlin/Android architecture, Retrofit/CallAdapter, coroutines and LiveData, custom views, and architecture-driven refactors.
392 Commits • 166 Features
Aug 1, 2025August 2025 (Month: 2025-08) delivered a cohesive set of authentication, onboarding, history, and API reliability improvements across the MulKkam app, with a strong focus on business value and system resilience. Key features included Kakao login integration with API/UX refinements and updated authorization flow, onboarding UX improvements (completion flag, toast-based feedback, and completion dialog), and onboarding data management with server synchronization. History screens were enhanced with contextual UI (Today label, year display) and related metrics; a custom SegmentedProgressBarView was introduced for clearer progress visualization. The core API layer was hardened via Result-based responses, improved error handling, and reduced reliance on verbose interceptors, enabling safer retries and more predictable failures. Startup and onboarding navigation were refined, including splash/entry state logic and backward navigation improvements. Notifications and home widget experiences were strengthened with unread counts, robust notification UI, and widget interaction improvements. Across UI/UX, code quality, and testing, lint/style updates, test suite refinements, and fixture adjustments supported speedier delivery and higher quality. Business value delivery: faster user login with Kakao integration, clearer onboarding flows reducing drop-off, more accurate user data and progress tracking, and a more reliable notification/goal-tracking experience. Technical achievements demonstrate expertise in Kotlin/Android architecture, Retrofit/CallAdapter, coroutines and LiveData, custom views, and architecture-driven refactors.
August 2025
July 2025
159 Commits • 56 Features
Jul 1, 2025July 2025 Highlights for woowacourse-teams/2025-mul-kkam Overview: Delivered a robust Android project bootstrap and a feature-rich water intake module, establishing a scalable MVVM architecture and a config-driven SDK/version management approach. Implemented a Retrofit/OkHttp networking stack with BuildConfig-based BASE_URL, added security considerations and logging, and centralized DI for HttpClient. Refined UI/UX, added location permissions, and delivered an end-to-end data flow from UI to API for water intake records. Headline architecture and quality improvements lay a solid foundation for rapid feature delivery and maintainability. Key outcomes by area: - Android bootstrap and core libraries: project skeleton with networking, serialization, coroutines, tests, DI, and package structure. - Networking and API: Retrofit service layer, OkHttp logging interceptor, BASE_URL managed via BuildConfig, and network injection refactor. - Data and UI for water intake: WaterRecords model, RecordViewModel with LiveData, RecordAdapter enhancements, and end-to-end UI for records with chart visuals. - API integration and repositories: Intake records DTO, API service interface, repository implementation, and DI wiring for water intake records. - Quality and maintainability: TOML-based SDK/version configuration, lint integration, package/name refactors, removal of MPAndroidChart, and testing coverage including HistoryViewModelTest and HistoryFragmentTest.
July 2025
159 Commits • 56 Features
Jul 1, 2025July 2025 Highlights for woowacourse-teams/2025-mul-kkam Overview: Delivered a robust Android project bootstrap and a feature-rich water intake module, establishing a scalable MVVM architecture and a config-driven SDK/version management approach. Implemented a Retrofit/OkHttp networking stack with BuildConfig-based BASE_URL, added security considerations and logging, and centralized DI for HttpClient. Refined UI/UX, added location permissions, and delivered an end-to-end data flow from UI to API for water intake records. Headline architecture and quality improvements lay a solid foundation for rapid feature delivery and maintainability. Key outcomes by area: - Android bootstrap and core libraries: project skeleton with networking, serialization, coroutines, tests, DI, and package structure. - Networking and API: Retrofit service layer, OkHttp logging interceptor, BASE_URL managed via BuildConfig, and network injection refactor. - Data and UI for water intake: WaterRecords model, RecordViewModel with LiveData, RecordAdapter enhancements, and end-to-end UI for records with chart visuals. - API integration and repositories: Intake records DTO, API service interface, repository implementation, and DI wiring for water intake records. - Quality and maintainability: TOML-based SDK/version configuration, lint integration, package/name refactors, removal of MPAndroidChart, and testing coverage including HistoryViewModelTest and HistoryFragmentTest.
Activity
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Quality Metrics
Correctness89.8%
Maintainability90.2%
Architecture86.4%
Performance86.2%
AI Usage20.4%
Skills & Technologies
Programming Languages
BinaryCSSGradleJavaJavaScriptKotlinProguardSwiftTOMLTypeScript
Technical Skills
API DesignAPI DevelopmentAPI Endpoint ManagementAPI IntegrationAPI ManagementAPI RefactoringAbstractionAccess ModifiersActivity LifecycleActivity NavigationActivity Result APIAdapter PatternAndroidAndroid DevelopmentAndroid Testing
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline