BrewR-EPFL/BrewR
Nov 2024 – Dec 2024
2 Months active
Languages Used
JavaKotlinXML
Technical Skills
Android DevelopmentAndroid Navigation ComponentAndroid TestingData ManagementEnd-to-End TestingFirebase
Yixiao
PROFILE
Yixiao
Yixiao Zhang contributed to the BrewR-EPFL/BrewR repository by developing and refining user journey and recommendation features for an Android application. Over two months, Yixiao implemented user-scoped data storage in Firebase Firestore, built end-to-end tested flows for journey management and exploration, and introduced a coffee-themed UI using Jetpack Compose and Kotlin. The work included integrating a KNN-based recommendation system, enhancing the testing framework with Mockito, and improving code quality through ktfmt-based formatting. These efforts resulted in more reliable releases, improved data isolation, and a consistent user experience, demonstrating depth in both backend integration and mobile UI development.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
39Total
Bugs
4
Commits
39
Features
14
Lines of code
2,731
Activity Months2
Your Network
122 peopleShared Repositories
6
Work History
December 2024
23 Commits • 8 Features
Dec 1, 2024December 2024 BrewR development improvements focused on code quality, feature delivery, and reliability. Key outcomes include a ktfmt-based formatting overhaul with fixes to ktfmtFormat, Journeys and KNN-aligned data access, a robust Recommendation UI and ViewModel, test coverage upgrades, and user-facing UX polish (About Us page). These changes deliver consistent code style, more accurate journey recommendations, and improved maintainability with stronger tests.
23 Commits • 8 Features
Dec 1, 2024December 2024 BrewR development improvements focused on code quality, feature delivery, and reliability. Key outcomes include a ktfmt-based formatting overhaul with fixes to ktfmtFormat, Journeys and KNN-aligned data access, a robust Recommendation UI and ViewModel, test coverage upgrades, and user-facing UX polish (About Us page). These changes deliver consistent code style, more accurate journey recommendations, and improved maintainability with stronger tests.
December 2024
November 2024
16 Commits • 6 Features
Nov 1, 2024November 2024: Delivered end-to-end journey and Explore flows with robust tests and UI polish, implemented user-scoped journeys in Firestore, reinforced branding with a coffee-themed UI, and strengthened the testing framework for reliability. These efforts improved release confidence, data isolation, and onboarding experience, while reducing manual QA overhead and enabling faster iteration on features. Notable changes include multiple commits across e2e tests (journey management, explore flow), UI improvements (JourneyRecord, photo sizing, theme), Firestore user-scoped data, and testing framework enhancements.
November 2024
16 Commits • 6 Features
Nov 1, 2024November 2024: Delivered end-to-end journey and Explore flows with robust tests and UI polish, implemented user-scoped journeys in Firestore, reinforced branding with a coffee-themed UI, and strengthened the testing framework for reliability. These efforts improved release confidence, data isolation, and onboarding experience, while reducing manual QA overhead and enabling faster iteration on features. Notable changes include multiple commits across e2e tests (journey management, explore flow), UI improvements (JourneyRecord, photo sizing, theme), Firestore user-scoped data, and testing framework enhancements.
Activity
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Quality Metrics
Correctness90.8%
Maintainability90.2%
Architecture86.6%
Performance88.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaKotlinXML
Technical Skills
AlgorithmsAndroid DevelopmentAndroid Navigation ComponentAndroid TestingBackend IntegrationCode FormattingData ManagementData StructuresDatabase ManagementDependency InjectionEnd-to-End TestingFirebaseFirebase AuthenticationFirebase FirestoreFirestore
Repositories Contributed To
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