HIUMC/UMC-8th-iOS-Study
Apr 2025 – May 2025
2 Months active
Languages Used
JSONObjective-CPDFRTFSwiftXMLShell
Technical Skills
App ArchitectureApp StorageAsset ManagementData Persistence (AppStorage)File ManagementModel-View-ViewModel (MVVM)
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PROFILE
Gogo
Daehyun Choi developed core features for the HIUMC/UMC-8th-iOS-Study repository, focusing on onboarding flows, home screen revamps, and secure authentication for a Starbucks-themed iOS app. He architected the app using Swift and SwiftUI, applying MVVM patterns and integrating persistent storage for receipt management with OCR. Choi implemented Kakao-based login with Keychain storage, enhanced navigation using MapKit and CoreLocation, and established reusable scaffolding for future projects. His work addressed both user experience and codebase stability, including project cleanup and rollback strategies. The engineering demonstrated depth in API integration, asset management, and scalable architecture, supporting rapid feature delivery and maintainability.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
19Total
Bugs
1
Commits
19
Features
8
Lines of code
54,627
Activity Months2
Your Network
10 people
Work History
May 2025
6 Commits • 2 Features
May 1, 2025May 2025 monthly summary for HIUMC/UMC-8th-iOS-Study. Delivered two core feature areas that establish reusable, scalable foundations across StarbucksApp and related projects: (1) Kakao Authentication, Networking, and Multi-project Scaffolding; secure login with Keychain storage, login state management, and foundational code using Alamofire, Kakao SDK, and Kingfisher; (2) Map-based Routing, Location Services, and Route Search; location permissions, map views, OSRM-based routing, and search/navigation across the app. This work creates cross-project reuse, accelerates future feature delivery, and enhances user experience with secure sign-in and robust location features.
6 Commits • 2 Features
May 1, 2025May 2025 monthly summary for HIUMC/UMC-8th-iOS-Study. Delivered two core feature areas that establish reusable, scalable foundations across StarbucksApp and related projects: (1) Kakao Authentication, Networking, and Multi-project Scaffolding; secure login with Keychain storage, login state management, and foundational code using Alamofire, Kakao SDK, and Kingfisher; (2) Map-based Routing, Location Services, and Route Search; location permissions, map views, OSRM-based routing, and search/navigation across the app. This work creates cross-project reuse, accelerates future feature delivery, and enhances user experience with secure sign-in and robust location features.
May 2025
April 2025
13 Commits • 6 Features
Apr 1, 2025April 2025 monthly summary for HIUMC/UMC-8th-iOS-Study highlighting completed features, bug fixes, impact, and skills demonstrated. Key work focused on onboarding, navigation, UI/UX enhancements, data modeling, and OCR-based receipt capture, with a stability-focused cleanup at month end. Key features delivered (with representative commits): - Starbucks App onboarding & core framework setup: initial Xcode configuration, onboarding UI scaffolding (login, signup, splash), fonts/assets integration, navigation/data model scaffolding. Commits: 11cb77755457e892a393551ae426a1e88d86e534; 8b512758215097b74a72163e75a3892f44883419; d1678c872aa5eacd9c7ddb8a1ec209fd0eee4ce7; 4c58821c1666f2cd7f1b397fb036c98e53339340; 04cd45c9a70af27afb0089c06578ab97cb62c3bb. - Home Screen Revamp: desserts, menus & What's New data models and banners; reusable UI components; tweak to login/signup flow. Commits: 7499cb17157a0c522c7fb38d1f92de6014e7dfb2; 476046f0977c34b76d66d6e230f2a508fc894972. - Rainbow Color Theme feature: color selection UI with models, view models, and views; updates to assets to apply rainbow colors. Commit: bf8bc77cafbe1bcd0d877fed6a316d0d234bcd27. - Receipt Management with OCR & Navigation Overhaul: OCR for receipts, persistent storage integration, and reorganized navigation structure. Commit: 3b3d940f2ecc0888a6d927477e95ebc9277d8d5b. - Coffee Detail Screen & Navigation: detailed coffee views and updated navigation flow. Commit: 77560fda197a9f34f93a7118f3f6057242cc84b5. Major bug fixes and stability work: - Project cleanup & rollback to revert unintended changes and reset project state, ensuring a stable baseline. Commits: 108b76ab02c7fb6c42565c561ca7353a5c88478b; 0768dc6673a2a602bf1b8547bca32a6149116d21. Overall impact and accomplishments: - Established a scalable foundation for onboarding and core app architecture, enabling faster feature delivery in subsequent sprints. - Improved user engagement and discovery with Home Screen revamp, themed customization, and integrated What's New content. - Enhanced data modeling and asset management across features, enabling reusable UI components and consistent user experience. - Strengthened data capture through OCR-enabled receipt processing with persistent storage and clearer navigation flows. - Achieved project stability and rollback capability to mitigate scope creep and configuration drift, protecting product quality. Technologies and skills demonstrated: - iOS app architecture (Xcode, Swift, MVVM-like patterns), onboarding flows, and navigation design. - Data modeling for content-heavy screens (desserts, menus, What's New) and persistent storage integration. - Asset management, fonts, and UI scaffolding for rapid iteration. - OCR integration for receipt processing and robust navigation restructuring. - Codebase cleanup, branch hygiene, and rollback strategies to maintain a clean baseline.
April 2025
13 Commits • 6 Features
Apr 1, 2025April 2025 monthly summary for HIUMC/UMC-8th-iOS-Study highlighting completed features, bug fixes, impact, and skills demonstrated. Key work focused on onboarding, navigation, UI/UX enhancements, data modeling, and OCR-based receipt capture, with a stability-focused cleanup at month end. Key features delivered (with representative commits): - Starbucks App onboarding & core framework setup: initial Xcode configuration, onboarding UI scaffolding (login, signup, splash), fonts/assets integration, navigation/data model scaffolding. Commits: 11cb77755457e892a393551ae426a1e88d86e534; 8b512758215097b74a72163e75a3892f44883419; d1678c872aa5eacd9c7ddb8a1ec209fd0eee4ce7; 4c58821c1666f2cd7f1b397fb036c98e53339340; 04cd45c9a70af27afb0089c06578ab97cb62c3bb. - Home Screen Revamp: desserts, menus & What's New data models and banners; reusable UI components; tweak to login/signup flow. Commits: 7499cb17157a0c522c7fb38d1f92de6014e7dfb2; 476046f0977c34b76d66d6e230f2a508fc894972. - Rainbow Color Theme feature: color selection UI with models, view models, and views; updates to assets to apply rainbow colors. Commit: bf8bc77cafbe1bcd0d877fed6a316d0d234bcd27. - Receipt Management with OCR & Navigation Overhaul: OCR for receipts, persistent storage integration, and reorganized navigation structure. Commit: 3b3d940f2ecc0888a6d927477e95ebc9277d8d5b. - Coffee Detail Screen & Navigation: detailed coffee views and updated navigation flow. Commit: 77560fda197a9f34f93a7118f3f6057242cc84b5. Major bug fixes and stability work: - Project cleanup & rollback to revert unintended changes and reset project state, ensuring a stable baseline. Commits: 108b76ab02c7fb6c42565c561ca7353a5c88478b; 0768dc6673a2a602bf1b8547bca32a6149116d21. Overall impact and accomplishments: - Established a scalable foundation for onboarding and core app architecture, enabling faster feature delivery in subsequent sprints. - Improved user engagement and discovery with Home Screen revamp, themed customization, and integrated What's New content. - Enhanced data modeling and asset management across features, enabling reusable UI components and consistent user experience. - Strengthened data capture through OCR-enabled receipt processing with persistent storage and clearer navigation flows. - Achieved project stability and rollback capability to mitigate scope creep and configuration drift, protecting product quality. Technologies and skills demonstrated: - iOS app architecture (Xcode, Swift, MVVM-like patterns), onboarding flows, and navigation design. - Data modeling for content-heavy screens (desserts, menus, What's New) and persistent storage integration. - Asset management, fonts, and UI scaffolding for rapid iteration. - OCR integration for receipt processing and robust navigation restructuring. - Codebase cleanup, branch hygiene, and rollback strategies to maintain a clean baseline.
Activity
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Quality Metrics
Correctness74.8%
Maintainability73.6%
Architecture73.6%
Performance68.4%
AI Usage32.6%
Skills & Technologies
Programming Languages
JSONObjective-CPDFRTFShellSwiftXML
Technical Skills
API IntegrationApp ArchitectureApp StorageAsset ManagementAuthenticationCoreLocationData Persistence (AppStorage)Dependency ManagementFile ManagementGeoJSONJSON ParsingKakao SDKKeychainMapKitModel-View-ViewModel (MVVM)
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