osmandapp/OsmAnd
Jan 2025 – Apr 2026
16 Months active
Languages Used
JavaKotlinGradleXML
Technical Skills
Android DevelopmentFragment ManagementJavaKotlinMap IntegrationMobile Development
Corwin-Kh
PROFILE
Corwin-kh
Serge Kharchenko contributed to the osmandapp/OsmAnd repository by delivering robust navigation, mapping, and UI features over 16 months. He engineered enhancements such as customizable 3D buildings, advanced GPX track management, and real-time vehicle diagnostics, focusing on reliability and user experience. Using Kotlin, Java, and Android frameworks, Serge implemented performance optimizations, accessibility improvements, and in-app purchase flows, while modernizing code through refactoring and architectural updates. His work addressed stability, localization, and device integration challenges, resulting in a maintainable codebase. The depth of his contributions is reflected in scalable features, resilient offline capabilities, and thoughtful UI/UX refinements throughout the project.
Overall Statistics
Feature vs Bugs
48%Features
Repository Contributions
382Total
Bugs
107
Commits
382
Features
97
Lines of code
52,330
Activity Months16
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Work History
April 2026
16 Commits • 5 Features
Apr 1, 2026April 2026 OsmAnd monthly summary for repository osmandapp/OsmAnd. Focused on delivering user-visible features, hardening stability, and expanding data models to support richer location data and smoother user interactions. Highlights include UI/UX refinements for the speedometer, expanded city data types, robust BLE reconnections, improved map interactions, and enhanced search capabilities, alongside targeted stability fixes for device connectivity.
16 Commits • 5 Features
Apr 1, 2026April 2026 OsmAnd monthly summary for repository osmandapp/OsmAnd. Focused on delivering user-visible features, hardening stability, and expanding data models to support richer location data and smoother user interactions. Highlights include UI/UX refinements for the speedometer, expanded city data types, robust BLE reconnections, improved map interactions, and enhanced search capabilities, alongside targeted stability fixes for device connectivity.
April 2026
March 2026
18 Commits • 5 Features
Mar 1, 2026March 2026 OsmAnd development delivered a set of feature enhancements and reliability fixes that strengthen track management, vehicle diagnostics, and navigation UX, while expanding monetization-ready capabilities and optimizing power usage. Key features delivered include GPX/Track management enhancements (interval-based split, UI state retention during analysis, and improved track organization controls); Speedometer and OBD diagnostics enhancements (dynamic day/night theming and a new OBD voltage widget); Android Auto navigation UX improvements (no navigation pauses during app switches, updates occur only when car navigation is active); and Search/City data UI enhancements (accurate city names, distance display, and stability improvements). Major fixes encompassed robust track import handling for empty time values and refined BLE behavior to disable automatic connections when Bluetooth is off. Additionally, a Premium feature for multi-criteria item organization was introduced, gated behind in-app purchases. Overall impact includes improved reliability, richer user insights, smoother navigation experiences, and a path toward scalable monetization, supported by modern Android UI techniques and power-aware BLE logic.
March 2026
18 Commits • 5 Features
Mar 1, 2026March 2026 OsmAnd development delivered a set of feature enhancements and reliability fixes that strengthen track management, vehicle diagnostics, and navigation UX, while expanding monetization-ready capabilities and optimizing power usage. Key features delivered include GPX/Track management enhancements (interval-based split, UI state retention during analysis, and improved track organization controls); Speedometer and OBD diagnostics enhancements (dynamic day/night theming and a new OBD voltage widget); Android Auto navigation UX improvements (no navigation pauses during app switches, updates occur only when car navigation is active); and Search/City data UI enhancements (accurate city names, distance display, and stability improvements). Major fixes encompassed robust track import handling for empty time values and refined BLE behavior to disable automatic connections when Bluetooth is off. Additionally, a Premium feature for multi-criteria item organization was introduced, gated behind in-app purchases. Overall impact includes improved reliability, richer user insights, smoother navigation experiences, and a path toward scalable monetization, supported by modern Android UI techniques and power-aware BLE logic.
February 2026
36 Commits • 9 Features
Feb 1, 2026February 2026 OsmAnd (osmandapp/OsmAnd) monthly summary focusing on delivered value, reliability, and technical excellence. Key features delivered: - 3D Buildings feature suite: implemented the settings main screen, alpha screen, color selection, and color-selection payment, plus accessibility descriptions for toggle controls to improve usability for assistive tech. - Search item building and related search improvements: introduced search item construction and related enhancements (naming for QuickSearchButtonListItem, changes to Street intersection search item), and added village/city relationships; added postcode/boundary context to address search. - Color customization and UI styling: enabled applying color to 3D buildings, added accessibility content descriptions for color toggles, updated POI styling, and refreshed UI for better consistency. - City data caching and performance: replaced repeated city re-search with caching to deliver cached cities list for faster startup and search results. Major bugs fixed: - Speed UI fixes: initial speedlimit visibility, night mode speedometer color, speedometer jump after speedlimit, and split interval average speed calculation. - Route uphill/downhill logic: fixes for uphill/downhill routing and edge cases. - UI and visual fixes: icon background rendering, search view height in DownloadResourceGroupFragment, padding and list rendering in ExplorePlaces, and various UI review fixes. - Stability and reliability: crash fixes for color selection and open address search, startup navigation, remove exception attempt (#24437), and overall startup stability improvements. - Misc improvements: folder/selection screen refresh after deletion, code cleanup, and miscellaneous UI/UX tweaks. Overall impact and accomplishments: - Delivered high-value features (3D buildings customization, enhanced search item capabilities) while simultaneously improving reliability, performance, and accessibility. The new caching strategy reduces network load and speeds up startup and search, contributing to better user retention and satisfaction. The in-app color customization for 3D buildings opens a potential monetization path with a smooth payment flow embedded in the user-facing experience. Technologies and skills demonstrated: - Android platform (Kotlin/Java), in-app purchases, accessibility (content descriptions), caching and performance optimization, UI/UX polish, crash debugging and stability engineering, and data modeling for search/item improvements.
36 Commits • 9 Features
Feb 1, 2026February 2026 OsmAnd (osmandapp/OsmAnd) monthly summary focusing on delivered value, reliability, and technical excellence. Key features delivered: - 3D Buildings feature suite: implemented the settings main screen, alpha screen, color selection, and color-selection payment, plus accessibility descriptions for toggle controls to improve usability for assistive tech. - Search item building and related search improvements: introduced search item construction and related enhancements (naming for QuickSearchButtonListItem, changes to Street intersection search item), and added village/city relationships; added postcode/boundary context to address search. - Color customization and UI styling: enabled applying color to 3D buildings, added accessibility content descriptions for color toggles, updated POI styling, and refreshed UI for better consistency. - City data caching and performance: replaced repeated city re-search with caching to deliver cached cities list for faster startup and search results. Major bugs fixed: - Speed UI fixes: initial speedlimit visibility, night mode speedometer color, speedometer jump after speedlimit, and split interval average speed calculation. - Route uphill/downhill logic: fixes for uphill/downhill routing and edge cases. - UI and visual fixes: icon background rendering, search view height in DownloadResourceGroupFragment, padding and list rendering in ExplorePlaces, and various UI review fixes. - Stability and reliability: crash fixes for color selection and open address search, startup navigation, remove exception attempt (#24437), and overall startup stability improvements. - Misc improvements: folder/selection screen refresh after deletion, code cleanup, and miscellaneous UI/UX tweaks. Overall impact and accomplishments: - Delivered high-value features (3D buildings customization, enhanced search item capabilities) while simultaneously improving reliability, performance, and accessibility. The new caching strategy reduces network load and speeds up startup and search, contributing to better user retention and satisfaction. The in-app color customization for 3D buildings opens a potential monetization path with a smooth payment flow embedded in the user-facing experience. Technologies and skills demonstrated: - Android platform (Kotlin/Java), in-app purchases, accessibility (content descriptions), caching and performance optimization, UI/UX polish, crash debugging and stability engineering, and data modeling for search/item improvements.
February 2026
January 2026
23 Commits • 7 Features
Jan 1, 2026Monthly work summary for 2026-01 focusing on OsmAnd (osmandapp/OsmAnd). Delivered performance, stability, and architectural improvements that enhance reliability, UX, and maintainability across 2D/3D navigation modes. Key features delivered: - GPX parsing performance optimization: Removed copying array when getting points from gpxfile, reducing allocations and boosting GPX data ingestion performance (commit 7f915723df4a54a8c0f26a2f7e089a6d7444c460). - Elevation angle management and AA integration: Separated elevation angle for AA and app; saved elevation angle on 2D/3D toggle in AA (commits 19bdbee1211077b7dbf97afe393e9a68e1e24de8 and 2732c34434dd457d2611ef2d13ac7e138dcea0f1). Fixed saving elevation angle for AA (commit 18a57c12d46fb081fe619751f5f8fd93c5a46de6). - Organize by feature architecture and track grouping: Introduced OrganizeBy enums and organized track groups, enabling flexible organization, filtering, and UI flows (multple commits starting with da20a35a5dbfb37cb969e6f546a536733e245626). - Speedometer animation and AA support: Implemented speedometer animation for general use and AA, with rendering refinements (commits fd60ad882e6d792fa41a2a1f7cadf06451fe6877 and 4d1793a05580360e3720640bfae2eb3779246353). - Code maintenance and modernization: Code cleanup and refactoring to improve maintainability; split updateBackgroundColors for readability; migrated Java to Kotlin and added Kotlin Parcelize dependency; removed outdated translations (commits a1568d398d395b6ad3f6d88898258f3be7881166, b98e686b87972ad7a777a3ca588326d399784519, 106b865d8252ab944482c95755d046c7f90c8daf). Major bugs fixed: - Stability and crash prevention: Resolved NPE in distance ruler, fixed possible index out of bounds crash, and implemented UI-related stability improvements (commits 0616c4775d0273ab5dad59d74b1656c8e807a7e4, 6ce1cd384d5e36e3fb6c095438680ac0087577e6, f64da9dad5b052ba7e955397409df10d0ca56495). - 2D/3D mode behavior fixes: Fixed 3D mode reset when starting navigation from phone with AA; fixed pause navigation on AA disconnect; fixed reset elevation angle during map animation (commits d024c5858e7214cc3d397ced4684d0a371f9291b and 5f9d0b5caa34670f1031dcfe0a513a5f66c5adbe). - Speedometer rendering fix: Corrected speedometer rendering in AA (commit 4d1793a05580360e3720640bfae2eb3779246353). - Misc reliability and UI/text fixes: Various fixes including removal of extraneous words, corrected checks, typos in resources, adjustments to speed limit initial state, and fixes for nearest cities disappearing after city search return (commits 24085..., 94c56ce..., ff24d095...,859c5f60..., b1dfd50b..., fe5de0a206e...). Overall impact and accomplishments: - Significantly improved runtime stability, reducing crash risk and edge-case failures during navigation and map interactions. - Enhanced performance in GPX data handling, leading to smoother route rendering and lower CPU/memory overhead during GPX processing. - Modernized codebase and architecture to support easier feature delivery, testing, and maintenance; enabling more robust extension of 2D/3D behavior and track organization. - Improved user experience with a more responsive UI, reliable 2D/3D transitions, and a smoother speedometer visualization across modes. - Strengthened development practices with targeted refactors, Kotlin modernization, and housekeeping to keep resources clean and maintainable. Technologies/skills demonstrated: - Android/Kotlin development, OO design and refactoring, migration from Java to Kotlin, and adoption of Kotlin Parcelize. - Architecture improvements, including OrganizeBy strategy pattern for track organization and resource mapping for UI consistency. - Performance optimization, memory-conscious GPX handling, and UI/UX polish in navigation features. - Gradle and build maintenance, including dependency updates and translation cleanup.
January 2026
23 Commits • 7 Features
Jan 1, 2026Monthly work summary for 2026-01 focusing on OsmAnd (osmandapp/OsmAnd). Delivered performance, stability, and architectural improvements that enhance reliability, UX, and maintainability across 2D/3D navigation modes. Key features delivered: - GPX parsing performance optimization: Removed copying array when getting points from gpxfile, reducing allocations and boosting GPX data ingestion performance (commit 7f915723df4a54a8c0f26a2f7e089a6d7444c460). - Elevation angle management and AA integration: Separated elevation angle for AA and app; saved elevation angle on 2D/3D toggle in AA (commits 19bdbee1211077b7dbf97afe393e9a68e1e24de8 and 2732c34434dd457d2611ef2d13ac7e138dcea0f1). Fixed saving elevation angle for AA (commit 18a57c12d46fb081fe619751f5f8fd93c5a46de6). - Organize by feature architecture and track grouping: Introduced OrganizeBy enums and organized track groups, enabling flexible organization, filtering, and UI flows (multple commits starting with da20a35a5dbfb37cb969e6f546a536733e245626). - Speedometer animation and AA support: Implemented speedometer animation for general use and AA, with rendering refinements (commits fd60ad882e6d792fa41a2a1f7cadf06451fe6877 and 4d1793a05580360e3720640bfae2eb3779246353). - Code maintenance and modernization: Code cleanup and refactoring to improve maintainability; split updateBackgroundColors for readability; migrated Java to Kotlin and added Kotlin Parcelize dependency; removed outdated translations (commits a1568d398d395b6ad3f6d88898258f3be7881166, b98e686b87972ad7a777a3ca588326d399784519, 106b865d8252ab944482c95755d046c7f90c8daf). Major bugs fixed: - Stability and crash prevention: Resolved NPE in distance ruler, fixed possible index out of bounds crash, and implemented UI-related stability improvements (commits 0616c4775d0273ab5dad59d74b1656c8e807a7e4, 6ce1cd384d5e36e3fb6c095438680ac0087577e6, f64da9dad5b052ba7e955397409df10d0ca56495). - 2D/3D mode behavior fixes: Fixed 3D mode reset when starting navigation from phone with AA; fixed pause navigation on AA disconnect; fixed reset elevation angle during map animation (commits d024c5858e7214cc3d397ced4684d0a371f9291b and 5f9d0b5caa34670f1031dcfe0a513a5f66c5adbe). - Speedometer rendering fix: Corrected speedometer rendering in AA (commit 4d1793a05580360e3720640bfae2eb3779246353). - Misc reliability and UI/text fixes: Various fixes including removal of extraneous words, corrected checks, typos in resources, adjustments to speed limit initial state, and fixes for nearest cities disappearing after city search return (commits 24085..., 94c56ce..., ff24d095...,859c5f60..., b1dfd50b..., fe5de0a206e...). Overall impact and accomplishments: - Significantly improved runtime stability, reducing crash risk and edge-case failures during navigation and map interactions. - Enhanced performance in GPX data handling, leading to smoother route rendering and lower CPU/memory overhead during GPX processing. - Modernized codebase and architecture to support easier feature delivery, testing, and maintenance; enabling more robust extension of 2D/3D behavior and track organization. - Improved user experience with a more responsive UI, reliable 2D/3D transitions, and a smoother speedometer visualization across modes. - Strengthened development practices with targeted refactors, Kotlin modernization, and housekeeping to keep resources clean and maintainable. Technologies/skills demonstrated: - Android/Kotlin development, OO design and refactoring, migration from Java to Kotlin, and adoption of Kotlin Parcelize. - Architecture improvements, including OrganizeBy strategy pattern for track organization and resource mapping for UI consistency. - Performance optimization, memory-conscious GPX handling, and UI/UX polish in navigation features. - Gradle and build maintenance, including dependency updates and translation cleanup.
December 2025
10 Commits • 3 Features
Dec 1, 2025Month: 2025-12 — OsmAnd: delivered stability and UX improvements across core navigation and search experiences. Focused on reducing failure modes, sharpening map interactions, and delivering a more informative destination flow. The work emphasizes business value through reliability, performance, and user-centric UI refinements.
10 Commits • 3 Features
Dec 1, 2025Month: 2025-12 — OsmAnd: delivered stability and UX improvements across core navigation and search experiences. Focused on reducing failure modes, sharpening map interactions, and delivering a more informative destination flow. The work emphasizes business value through reliability, performance, and user-centric UI refinements.
December 2025
November 2025
31 Commits • 11 Features
Nov 1, 2025November 2025 OsmAnd: Delivered significant stability hardening and feature polish across maps, UI, and observability. Achieved reduced crash surface, streamlined map management, and notable UX improvements, driving reliability and user satisfaction.
November 2025
31 Commits • 11 Features
Nov 1, 2025November 2025 OsmAnd: Delivered significant stability hardening and feature polish across maps, UI, and observability. Achieved reduced crash surface, streamlined map management, and notable UX improvements, driving reliability and user satisfaction.
October 2025
19 Commits • 5 Features
Oct 1, 2025October 2025 OsmAnd development focused on delivering high-value features, stabilizing core flows, and enabling robust offline capabilities. Key improvements include automatic OBD BLE characteristics discovery and reconnection, offline Wikipedia data downloads with progress tracking, and UX enhancements across POI search, distance ruler gestures, and platform reliability. A set of targeted bug fixes and UI polish reduced crash surfaces and improved cross-version behavior, translating to smoother user experiences and greater business value.
19 Commits • 5 Features
Oct 1, 2025October 2025 OsmAnd development focused on delivering high-value features, stabilizing core flows, and enabling robust offline capabilities. Key improvements include automatic OBD BLE characteristics discovery and reconnection, offline Wikipedia data downloads with progress tracking, and UX enhancements across POI search, distance ruler gestures, and platform reliability. A set of targeted bug fixes and UI polish reduced crash surfaces and improved cross-version behavior, translating to smoother user experiences and greater business value.
October 2025
September 2025
18 Commits • 4 Features
Sep 1, 2025September 2025 OsmAnd development focused on delivering business-critical features, improving data accuracy, and hardening stability across vehicle UX, BLE integration, and OBD data presentation. Key features landed include expanded BLE discovery with defaulting to OBD when no supported devices are found, refactored fuel consumption calculations and metric display for consistency, and UI/UX enhancements such as clearer OBD voltage labeling, distance ruler behavior fixes, and speedometer autosizing. Major fixes addressed car view alignment, MissingMaps integration reliability, and resilience against crashes (null checks). The work improves cross-system consistency, reduces user friction, and supports internationalization and cross-region usability.
September 2025
18 Commits • 4 Features
Sep 1, 2025September 2025 OsmAnd development focused on delivering business-critical features, improving data accuracy, and hardening stability across vehicle UX, BLE integration, and OBD data presentation. Key features landed include expanded BLE discovery with defaulting to OBD when no supported devices are found, refactored fuel consumption calculations and metric display for consistency, and UI/UX enhancements such as clearer OBD voltage labeling, distance ruler behavior fixes, and speedometer autosizing. Major fixes addressed car view alignment, MissingMaps integration reliability, and resilience against crashes (null checks). The work improves cross-system consistency, reduces user friction, and supports internationalization and cross-region usability.
August 2025
19 Commits • 7 Features
Aug 1, 2025Monthly summary for OsmAnd – August 2025 (2025-08). The team focused on delivering core usability enhancements and stability improvements while upgrading critical libraries to enable longer-term maintenance and new capabilities. Key work spanned route/time calculations, navigation flows in Android Auto, map/location reliability, device connectivity (BLE OBD), and internationalization. Key features delivered: - Accurate duration calculations for routes and GPX tracks: improved time span handling, zero durations, and correct aggregation for segments. Commits: 8a63d1ff499d532f01616c428498a6fa6a946236; a9b312bc5a10afbd9d2b34a1e6db351123aea28e. - Android Auto integration and navigation flow improvements: added missing maps and private access screens; refactored intents/receivers for stability. Commits: 70e7dd8272a1f58f930f2d9adfe2b954377204e1; 2ceca0880d6f7dac65bf6e1a7fe9cf2f292671c0; 70141aa1fbb990ab79113bea09b93776a26728fb. - Map interaction and location updates stability: enabled pinch-to-zoom, fixed double-tap zoom behavior, improved movement thresholds and distance calculations. Commits: a035d270d16a70cb70b9f01c3b22f3885d822a43; d10cf6a41e5d7bd12494ae7acbc873fd084e4394; 9fe5b888d5ecc1dfc5beab5ea4b1a313d88587d9; 8a72d3022c9cc7b0c889d117ca344f142d5c4bbc; 8c61017f8d961aba8bb358729808290095aa3504; 22877af6e3a707427ab3b1b7ba9b2e658f3fa182. - Fuel and vehicle metrics improvements (MPG mode): added Miles Per Gallon mode for fuel consumption display. Commit: 5b2c35c9d9336d756bc4602342d5938b5dd3c5ad. - OBD/BLE connectivity enhancements: BLE OBD device support and string-based OBD commands with a UI widget for voltage display. Commits: 8488921e045276f7c9747a72470e454ec07788af; 559d427953ba4f9f7bdbdfed422e361e99a7de9b. - Billing library upgrade: migrated to Android billing library 8.0.0 and updated code for API changes. Commit: d9fbdbe5d058a128dd68d38a1688e433d9611b81. - Search results content limit management: introduced content limit control for search results and firstGetTemplate handling. Commits: 50345776e872b847e2c0defc98bd648481781d54; 4e36d5b16875367c8e99b0db3c4fcccc0d680b40. - Localization and translations improvements: POI type initialization fix and Ukrainian translations corrected. Commits: 8eda2f9f9a5a679cda1cb1e790e9eeec6aed3144; e90639dbc7fc60e996823611ea334bbbd0783e3c. Major bugs fixed: - Fixed show timespan and duration display gaps (e.g., #21944); ensured time span shows consistently for general segments. Commits: 8a63d1ff499d532f01616c428498a6fa6a946236; a9b312bc5a10afbd9d2b34a1e6db351123aea28e. - POI type reinit issues and Ukrainian translation corrections to stabilize localization. Commits: 8eda2f9f9a5a679cda1cb1e790e9eeec6aed3144; e90639dbc7fc60e996823611ea334bbbd0783e3c. - Map/location stability fixes: corrected map location on double-tap scale zoom and related location updates logic. Commits: d10cf6a41e5d7bd12494ae7acbc873fd084e4394; 9fe5b888d5ecc1dfc5beab5ea4b1a313d88587d9; 8a72d3022c9cc7b0c889d117ca344f142d5c4bbc; 8c61017f8d961aba8bb358729808290095aa3504; 22877af6e3a707427ab3b1b7ba9b2e658f3fa182. - Content limit retrieval bug for search screens (e.g., incorrect limit retrieval fixed). Commits: 50345776e872b847e2c0defc98bd648481781d54; 4e36d5b16875367c8e99b0db3c4fcccc0d680b40. - Android Auto flow stability: post-review fixes to messaging and intents to improve reliability. Commits: 2ceca0880d6f7dac65bf6e1a7fe9cf2f292671c0; 70141aa1fbb990ab79113bea09b93776a26728fb. Overall impact and accomplishments: - Improved user experience and reliability across core navigation features, enabling more accurate trip timing, more stable Android Auto interaction, and dependable location updates. These changes reduce user friction, increase confidence in route planning, and support broader device integrations (BLE OBD) and localization for non-English users. The August work also positions OsmAnd for easier maintenance via library upgrades and better data handling (content limits, OBD commands). Technologies and skills demonstrated: - Android framework, Kotlin/Java, Android Auto integration, and intent/receiver stability work. - Map and location services: pinch-to-zoom, double-tap center, movement thresholds, distance calculations. - BLE OBD integration and UI widgets for real-time diagnostics data (voltage). - Billing library upgrade (API changes handling). - Internationalization and localization fixes (POI types, Ukrainian translations). - Data handling optimizations for search templates and content limits.
19 Commits • 7 Features
Aug 1, 2025Monthly summary for OsmAnd – August 2025 (2025-08). The team focused on delivering core usability enhancements and stability improvements while upgrading critical libraries to enable longer-term maintenance and new capabilities. Key work spanned route/time calculations, navigation flows in Android Auto, map/location reliability, device connectivity (BLE OBD), and internationalization. Key features delivered: - Accurate duration calculations for routes and GPX tracks: improved time span handling, zero durations, and correct aggregation for segments. Commits: 8a63d1ff499d532f01616c428498a6fa6a946236; a9b312bc5a10afbd9d2b34a1e6db351123aea28e. - Android Auto integration and navigation flow improvements: added missing maps and private access screens; refactored intents/receivers for stability. Commits: 70e7dd8272a1f58f930f2d9adfe2b954377204e1; 2ceca0880d6f7dac65bf6e1a7fe9cf2f292671c0; 70141aa1fbb990ab79113bea09b93776a26728fb. - Map interaction and location updates stability: enabled pinch-to-zoom, fixed double-tap zoom behavior, improved movement thresholds and distance calculations. Commits: a035d270d16a70cb70b9f01c3b22f3885d822a43; d10cf6a41e5d7bd12494ae7acbc873fd084e4394; 9fe5b888d5ecc1dfc5beab5ea4b1a313d88587d9; 8a72d3022c9cc7b0c889d117ca344f142d5c4bbc; 8c61017f8d961aba8bb358729808290095aa3504; 22877af6e3a707427ab3b1b7ba9b2e658f3fa182. - Fuel and vehicle metrics improvements (MPG mode): added Miles Per Gallon mode for fuel consumption display. Commit: 5b2c35c9d9336d756bc4602342d5938b5dd3c5ad. - OBD/BLE connectivity enhancements: BLE OBD device support and string-based OBD commands with a UI widget for voltage display. Commits: 8488921e045276f7c9747a72470e454ec07788af; 559d427953ba4f9f7bdbdfed422e361e99a7de9b. - Billing library upgrade: migrated to Android billing library 8.0.0 and updated code for API changes. Commit: d9fbdbe5d058a128dd68d38a1688e433d9611b81. - Search results content limit management: introduced content limit control for search results and firstGetTemplate handling. Commits: 50345776e872b847e2c0defc98bd648481781d54; 4e36d5b16875367c8e99b0db3c4fcccc0d680b40. - Localization and translations improvements: POI type initialization fix and Ukrainian translations corrected. Commits: 8eda2f9f9a5a679cda1cb1e790e9eeec6aed3144; e90639dbc7fc60e996823611ea334bbbd0783e3c. Major bugs fixed: - Fixed show timespan and duration display gaps (e.g., #21944); ensured time span shows consistently for general segments. Commits: 8a63d1ff499d532f01616c428498a6fa6a946236; a9b312bc5a10afbd9d2b34a1e6db351123aea28e. - POI type reinit issues and Ukrainian translation corrections to stabilize localization. Commits: 8eda2f9f9a5a679cda1cb1e790e9eeec6aed3144; e90639dbc7fc60e996823611ea334bbbd0783e3c. - Map/location stability fixes: corrected map location on double-tap scale zoom and related location updates logic. Commits: d10cf6a41e5d7bd12494ae7acbc873fd084e4394; 9fe5b888d5ecc1dfc5beab5ea4b1a313d88587d9; 8a72d3022c9cc7b0c889d117ca344f142d5c4bbc; 8c61017f8d961aba8bb358729808290095aa3504; 22877af6e3a707427ab3b1b7ba9b2e658f3fa182. - Content limit retrieval bug for search screens (e.g., incorrect limit retrieval fixed). Commits: 50345776e872b847e2c0defc98bd648481781d54; 4e36d5b16875367c8e99b0db3c4fcccc0d680b40. - Android Auto flow stability: post-review fixes to messaging and intents to improve reliability. Commits: 2ceca0880d6f7dac65bf6e1a7fe9cf2f292671c0; 70141aa1fbb990ab79113bea09b93776a26728fb. Overall impact and accomplishments: - Improved user experience and reliability across core navigation features, enabling more accurate trip timing, more stable Android Auto interaction, and dependable location updates. These changes reduce user friction, increase confidence in route planning, and support broader device integrations (BLE OBD) and localization for non-English users. The August work also positions OsmAnd for easier maintenance via library upgrades and better data handling (content limits, OBD commands). Technologies and skills demonstrated: - Android framework, Kotlin/Java, Android Auto integration, and intent/receiver stability work. - Map and location services: pinch-to-zoom, double-tap center, movement thresholds, distance calculations. - BLE OBD integration and UI widgets for real-time diagnostics data (voltage). - Billing library upgrade (API changes handling). - Internationalization and localization fixes (POI types, Ukrainian translations). - Data handling optimizations for search templates and content limits.
August 2025
July 2025
27 Commits • 7 Features
Jul 1, 2025July 2025 OsmAnd development highlights: Delivered user-facing widget enhancements, improved PoiType handling, and expanded UI support for legacy API, while strengthening stability across import/history flows, device integrations, and UI interactions. Key business-value outcomes include more customizable widgets, safer PoiType persistence, and reduced CI flakiness, resulting in faster feature delivery and more robust user experiences.
July 2025
27 Commits • 7 Features
Jul 1, 2025July 2025 OsmAnd development highlights: Delivered user-facing widget enhancements, improved PoiType handling, and expanded UI support for legacy API, while strengthening stability across import/history flows, device integrations, and UI interactions. Key business-value outcomes include more customizable widgets, safer PoiType persistence, and reduced CI flakiness, resulting in faster feature delivery and more robust user experiences.
June 2025
20 Commits • 5 Features
Jun 1, 2025June 2025 OsmAnd engineering highlights: Delivered user-configurable External Sensor Widgets with display mode selection and UI/icon enhancements; stabilized Android Auto foreground service startup and content initialization to prevent startup crashes; improved in-dash distance rounding and unit handling for accurate distance display; boosted OBD data reliability by increasing read buffer sizes; introduced locale-aware POI filtering using Collator-based filtering to enhance search UX; and streamlined test assets and build setup to reduce dependencies and improve reliability. Overall, these efforts deliver stronger reliability, better customization, improved data integrity, and faster, more predictable builds, directly contributing to user satisfaction and maintainable codebase.
20 Commits • 5 Features
Jun 1, 2025June 2025 OsmAnd engineering highlights: Delivered user-configurable External Sensor Widgets with display mode selection and UI/icon enhancements; stabilized Android Auto foreground service startup and content initialization to prevent startup crashes; improved in-dash distance rounding and unit handling for accurate distance display; boosted OBD data reliability by increasing read buffer sizes; introduced locale-aware POI filtering using Collator-based filtering to enhance search UX; and streamlined test assets and build setup to reduce dependencies and improve reliability. Overall, these efforts deliver stronger reliability, better customization, improved data integrity, and faster, more predictable builds, directly contributing to user satisfaction and maintainable codebase.
June 2025
May 2025
20 Commits • 2 Features
May 1, 2025May 2025 OsmAnd: Delivered stability and usability improvements across the Map/POI UI, standardized track navigation, and streamlined build/maintenance processes. These efforts reduced crashes, improved user experience, and simplify ongoing maintenance, directly supporting user retention and faster iteration cycles.
May 2025
20 Commits • 2 Features
May 1, 2025May 2025 OsmAnd: Delivered stability and usability improvements across the Map/POI UI, standardized track navigation, and streamlined build/maintenance processes. These efforts reduced crashes, improved user experience, and simplify ongoing maintenance, directly supporting user retention and faster iteration cycles.
April 2025
39 Commits • 6 Features
Apr 1, 2025April 2025 OsmAnd development sprint focused on observability, reliability, and UX refinements across mapping, search, and POI workflows. Key deliveries include Picasso image loading logging integrated with the Development plugin, map/top places display fixes, offline search enhancements, and comprehensive stability and data integrity improvements. Architectural updates and UI polish contributed to maintainability and a better user experience. These changes reduce crashes, improve offline usability, and enable faster issue diagnosis, delivering tangible business value in reliability, UX, and performance.
39 Commits • 6 Features
Apr 1, 2025April 2025 OsmAnd development sprint focused on observability, reliability, and UX refinements across mapping, search, and POI workflows. Key deliveries include Picasso image loading logging integrated with the Development plugin, map/top places display fixes, offline search enhancements, and comprehensive stability and data integrity improvements. Architectural updates and UI polish contributed to maintainability and a better user experience. These changes reduce crashes, improve offline usability, and enable faster issue diagnosis, delivering tangible business value in reliability, UX, and performance.
April 2025
March 2025
45 Commits • 10 Features
Mar 1, 2025March 2025 OsmAnd development delivered user-centric map UX improvements, enhanced point rendering, expanded explore places UI, and strengthened build stability and maintainability. The month focused on delivering business value through improved map interactions, faster search UX, offline reliability, and post-review stability.
March 2025
45 Commits • 10 Features
Mar 1, 2025March 2025 OsmAnd development delivered user-centric map UX improvements, enhanced point rendering, expanded explore places UI, and strengthened build stability and maintainability. The month focused on delivering business value through improved map interactions, faster search UX, offline reliability, and post-review stability.
February 2025
35 Commits • 10 Features
Feb 1, 2025February 2025 — OsmAnd (osmandapp/OsmAnd) delivered targeted UI refinements, performance improvements, and stability fixes that drive business value through faster load times, better offline support, and a more reliable user experience. Key efforts focused on Nearby Places UX, Explore Places interactions, and code quality to enable scalable growth and easier maintenance. Key features delivered: - Nearby Places UI and data loading improvements: extracted NearbyPlaces card, added prefetching icons, improved navigation, removed amenity search from nearby places requests, and added empty placeholder cards to improve UI consistency. - Implemented and finalized caching mechanism to improve data availability and performance (initial attempt was reverted before final application). - ExplorePlaces context menu enhancements: added ExplorePlaces card to the context menu and UI controls to hide layers/show Explore Places points. - Code quality and maintainability improvements: removed isSelected field, eliminated duplicated strings, and performed repository-wide cleanup (PointImageUtils, general code cleanup). - Stability and correctness fixes across UI interactions and navigation: DP to PX conversion fixes, direction arrow rotation, index bounds protection, non-UI ContextMenu fixes, and back-press behavior improvements.
35 Commits • 10 Features
Feb 1, 2025February 2025 — OsmAnd (osmandapp/OsmAnd) delivered targeted UI refinements, performance improvements, and stability fixes that drive business value through faster load times, better offline support, and a more reliable user experience. Key efforts focused on Nearby Places UX, Explore Places interactions, and code quality to enable scalable growth and easier maintenance. Key features delivered: - Nearby Places UI and data loading improvements: extracted NearbyPlaces card, added prefetching icons, improved navigation, removed amenity search from nearby places requests, and added empty placeholder cards to improve UI consistency. - Implemented and finalized caching mechanism to improve data availability and performance (initial attempt was reverted before final application). - ExplorePlaces context menu enhancements: added ExplorePlaces card to the context menu and UI controls to hide layers/show Explore Places points. - Code quality and maintainability improvements: removed isSelected field, eliminated duplicated strings, and performed repository-wide cleanup (PointImageUtils, general code cleanup). - Stability and correctness fixes across UI interactions and navigation: DP to PX conversion fixes, direction arrow rotation, index bounds protection, non-UI ContextMenu fixes, and back-press behavior improvements.
February 2025
January 2025
6 Commits • 1 Features
Jan 1, 2025January 2025 OsmAnd — Delivered a comprehensive Nearby Places UI overhaul with a Kotlin-based screen, improved adapters, and robust map integration. Implemented context-menu actions for nearby POIs, clickable list items that navigate to map details, and a "show-on-map" option from search history. Unified navigation/back behavior and enabled selection/highlighting of nearby points on the map, creating a cohesive discovery experience from search to map interactions. This work reduces friction for users discovering POIs and sets a scalable foundation for future POI capabilities.
January 2025
6 Commits • 1 Features
Jan 1, 2025January 2025 OsmAnd — Delivered a comprehensive Nearby Places UI overhaul with a Kotlin-based screen, improved adapters, and robust map integration. Implemented context-menu actions for nearby POIs, clickable list items that navigate to map details, and a "show-on-map" option from search history. Unified navigation/back behavior and enabled selection/highlighting of nearby points on the map, creating a cohesive discovery experience from search to map interactions. This work reduces friction for users discovering POIs and sets a scalable foundation for future POI capabilities.
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Quality Metrics
Correctness85.8%
Maintainability84.2%
Architecture80.0%
Performance79.2%
AI Usage21.6%
Skills & Technologies
Programming Languages
GradleJavaKotlinXML
Technical Skills
API IntegrationActivity Lifecycle ManagementAndroid AutoAndroid Auto IntegrationAndroid DevelopmentAndroid TestingAndroid developmentAnimationAsset ManagementAsynchronous ProgrammingBackend DevelopmentBackup and SyncBluetoothBluetooth Low Energy (BLE)Bluetooth integration
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