mbta/mobile_app
Nov 2024 – Mar 2025
5 Months active
Languages Used
JavaKMMKotlinXMLSwiftSwiftUI
Technical Skills
API IntegrationAndroid DevelopmentMobile DevelopmentReal-time Data HandlingUnit TestingCoroutines
Jack Curtis
PROFILE
Jack Curtis
Jack Curtis developed and enhanced the mbta/mobile_app over five months, focusing on real-time transit features, map UX, and accessibility improvements. He integrated the Predictions V2 API and refactored data pipelines for reliable live updates, using Kotlin and Jetpack Compose to modernize the Android architecture. Jack delivered features such as global state management, nearby stop search, onboarding flows, and edge-to-edge map views, emphasizing maintainability and testability through MVVM and repository patterns. He also addressed accessibility by adding wheelchair indicators and refining UI alignment. His work demonstrated depth in Android development, UI/UX design, and robust state management, improving user experience throughout.
Overall Statistics
Feature vs Bugs
91%Features
Repository Contributions
15Total
Bugs
1
Commits
15
Features
10
Lines of code
4,633
Activity Months5
Your Network
3 peopleShared Repositories
3
Work History
March 2025
2 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for mbta/mobile_app focusing on map UX improvements and reliability enhancements. Delivered consolidated Mobile Map UX Enhancements, including location controls stability, improved visibility of centering buttons, and wheelchair accessibility indicators with related alerts to help users identify accessible transit options. Also completed targeted fixes for Android location issues to enhance map reliability, contributing to a smoother rider experience and reduced support friction.
2 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for mbta/mobile_app focusing on map UX improvements and reliability enhancements. Delivered consolidated Mobile Map UX Enhancements, including location controls stability, improved visibility of centering buttons, and wheelchair accessibility indicators with related alerts to help users identify accessible transit options. Also completed targeted fixes for Android location issues to enhance map reliability, contributing to a smoother rider experience and reduced support friction.
March 2025
February 2025
6 Commits • 4 Features
Feb 1, 2025February 2025 — mbta/mobile_app Key features delivered: - Edge-to-Edge Map View Enhancements: enables edge-to-edge map coverage, adjusts system UI styles for light/dark modes, adds padding to navigation bars to prevent content obscuration, and removes the search bar overlay border to integrate with the edge-to-edge layout. Commits: 49e74cf9036604e1bc6f15990974bad5948adaa2, 2d08b158a86309d043d05f3e39fe16242697dcbd. - Onboarding Accessibility Button Text Alignment: improves vertical and horizontal alignment of the accessibility button text on the onboarding screen for a more polished UI. Commit: 845542e82d3a78709b2827e20e1b13af394f51cf. - Vehicle Overview Viewport Enhancement: increases padding in the vehicle overview viewport and ensures the map does not follow the user when the overview is active, refining the viewing experience. Commit: 3ee453c3655c65f49b380f0e4b43f275bb487a9b. - Software Licenses Section on More Page: introduces a new Software Licenses section on the More page to display dependencies licenses; updates MoreViewModel, MorePage, and related UI; includes tests for the licenses screen. Commit: 4a2f77c03de8345a385929d9a478de1b663ab1ad. Major bugs fixed: - Map Vehicle Deselect Bug Fix and State Management: fixes issue where vehicles remained visible after being deselected; relocates selected-vehicle handling from TripDetailsView to stopDetailsManagedVM to ensure proper state management; fixes related API change tests. Commit: e907facaf5a302e6ff27d73f38982fef48590a97. Overall impact and accomplishments: - Delivered a set of UX-focused features with robust state management and accessibility improvements, enhancing user immersion in maps, reducing edge-case bugs, and increasing transparency with licensing information. The changes improve maintainability through added tests and clearer responsibilities in view models. Technologies/skills demonstrated: - Android MVVM, Kotlin, UI/UX polish, edge-to-edge layout adaptations, state management with view models, testing coverage, and accessibility improvements.
February 2025
6 Commits • 4 Features
Feb 1, 2025February 2025 — mbta/mobile_app Key features delivered: - Edge-to-Edge Map View Enhancements: enables edge-to-edge map coverage, adjusts system UI styles for light/dark modes, adds padding to navigation bars to prevent content obscuration, and removes the search bar overlay border to integrate with the edge-to-edge layout. Commits: 49e74cf9036604e1bc6f15990974bad5948adaa2, 2d08b158a86309d043d05f3e39fe16242697dcbd. - Onboarding Accessibility Button Text Alignment: improves vertical and horizontal alignment of the accessibility button text on the onboarding screen for a more polished UI. Commit: 845542e82d3a78709b2827e20e1b13af394f51cf. - Vehicle Overview Viewport Enhancement: increases padding in the vehicle overview viewport and ensures the map does not follow the user when the overview is active, refining the viewing experience. Commit: 3ee453c3655c65f49b380f0e4b43f275bb487a9b. - Software Licenses Section on More Page: introduces a new Software Licenses section on the More page to display dependencies licenses; updates MoreViewModel, MorePage, and related UI; includes tests for the licenses screen. Commit: 4a2f77c03de8345a385929d9a478de1b663ab1ad. Major bugs fixed: - Map Vehicle Deselect Bug Fix and State Management: fixes issue where vehicles remained visible after being deselected; relocates selected-vehicle handling from TripDetailsView to stopDetailsManagedVM to ensure proper state management; fixes related API change tests. Commit: e907facaf5a302e6ff27d73f38982fef48590a97. Overall impact and accomplishments: - Delivered a set of UX-focused features with robust state management and accessibility improvements, enhancing user immersion in maps, reducing edge-case bugs, and increasing transparency with licensing information. The changes improve maintainability through added tests and clearer responsibilities in view models. Technologies/skills demonstrated: - Android MVVM, Kotlin, UI/UX polish, edge-to-edge layout adaptations, state management with view models, testing coverage, and accessibility improvements.
January 2025
2 Commits • 2 Features
Jan 1, 2025Month 2025-01 – Delivered two user-facing features for mbta/mobile_app with no major bugs reported. Key features: 1) Recently Viewed Stops in Search Results, integrating visit history and updating search UI to surface previously visited stops when the query is empty. 2) Android Onboarding UI with feedback, map visibility, and location sharing, including theme-aware styling and animations. Impact: improves search efficiency and onboarding experience, likely increasing user engagement and activation. Technologies/skills: Android UI development, UI/UX design, history/data integration, theming, animations, and cross-functional collaboration.
2 Commits • 2 Features
Jan 1, 2025Month 2025-01 – Delivered two user-facing features for mbta/mobile_app with no major bugs reported. Key features: 1) Recently Viewed Stops in Search Results, integrating visit history and updating search UI to surface previously visited stops when the query is empty. 2) Android Onboarding UI with feedback, map visibility, and location sharing, including theme-aware styling and animations. Impact: improves search efficiency and onboarding experience, likely increasing user engagement and activation. Technologies/skills: Android UI development, UI/UX design, history/data integration, theming, animations, and cross-functional collaboration.
January 2025
December 2024
4 Commits • 2 Features
Dec 1, 2024December 2024 — mbta/mobile_app performance and feature delivery focused on architecture improvements and user-facing search enhancements. Key features delivered: - Android App State Management Refactor: Introduced ViewModel-based global data/state management and a new 'state' package to improve organization and testability. Commit: c10a6ccacc0cfe1b6bff50e18c14c4f281b05cdc. - Nearby Transit Stops Search: Delivered end-to-end search with a new SearchBarOverlay, including repository and ViewModel setup, UI enhancements for results, and test isolation improvements. Commits: 2fb7f43a7dc9cbee383919a013d9208396ad826c; 68d199cbc03335a7ca92fd474f6d426f0207be6b; 656a203c5453943cffb23831853397d9dccbc8f0. Major bugs fixed: - Debounce bug fix in the nearby search path to stabilize queries and prevent duplicate results. (Ticket #603) Overall impact and accomplishments: - Improved app reliability and performance through a scalable state management approach and better testability; reduced risk of regressions with consolidated utilities. - Enhanced user experience with a faster, more reliable nearby-stop search feature and clearer UI for results. Technologies/skills demonstrated: - Android Architecture Components (ViewModel, repository pattern), state management refactor, and modularized utilities. - UI/UX improvements for search flows, debouncing, and result presentation. - Testing improvements and test isolation strategies for search components.
December 2024
4 Commits • 2 Features
Dec 1, 2024December 2024 — mbta/mobile_app performance and feature delivery focused on architecture improvements and user-facing search enhancements. Key features delivered: - Android App State Management Refactor: Introduced ViewModel-based global data/state management and a new 'state' package to improve organization and testability. Commit: c10a6ccacc0cfe1b6bff50e18c14c4f281b05cdc. - Nearby Transit Stops Search: Delivered end-to-end search with a new SearchBarOverlay, including repository and ViewModel setup, UI enhancements for results, and test isolation improvements. Commits: 2fb7f43a7dc9cbee383919a013d9208396ad826c; 68d199cbc03335a7ca92fd474f6d426f0207be6b; 656a203c5453943cffb23831853397d9dccbc8f0. Major bugs fixed: - Debounce bug fix in the nearby search path to stabilize queries and prevent duplicate results. (Ticket #603) Overall impact and accomplishments: - Improved app reliability and performance through a scalable state management approach and better testability; reduced risk of regressions with consolidated utilities. - Enhanced user experience with a faster, more reliable nearby-stop search feature and clearer UI for results. Technologies/skills demonstrated: - Android Architecture Components (ViewModel, repository pattern), state management refactor, and modularized utilities. - UI/UX improvements for search flows, debouncing, and result presentation. - Testing improvements and test isolation strategies for search components.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024: Focused on upgrading the mobile app's real-time transit experience by integrating the Predictions V2 API, refactoring the data connection and processing pipeline for reliability, and improving the message decoding for accurate updates. Also fixed a decoding bug to stabilize live updates.
1 Commits • 1 Features
Nov 1, 2024November 2024: Focused on upgrading the mobile app's real-time transit experience by integrating the Predictions V2 API, refactoring the data connection and processing pipeline for reliability, and improving the message decoding for accurate updates. Also fixed a decoding bug to stabilize live updates.
November 2024
Activity
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Quality Metrics
Correctness86.0%
Maintainability82.0%
Architecture81.4%
Performance76.0%
AI Usage21.4%
Skills & Technologies
Programming Languages
JavaKMMKotlinSwiftSwiftUIXML
Technical Skills
API IntegrationAccessibilityAndroid DevelopmentCoroutinesFlowIntegration TestingJetpack ComposeKotlinMVVMMapbox SDKMobile DevelopmentReal-time Data HandlingRepository PatternState ManagementUI Development
Repositories Contributed To
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