Description
Stopwatch & Timer combines a centisecond-precise stopwatch with lap recording and a countdown timer with quick-add buttons and an alarm tone. The screen stays on while the app is open.
Features:
- Stopwatch with laps and split times
- Countdown timer with alarm
- Keeps running state on rotation
- Data stored locally, works offline
- No ads, no trackers, no permissions, no third-party libraries
Full Android Studio project in Kotlin:
- Gradle project (Gradle wrapper 8.7, Android Gradle Plugin 8.5, Kotlin 1.9) – opens directly in Android Studio
- Clean structure: Activity separated from logic/model classes, XML layouts
- All texts in strings.xml, colours and themes in resources – easy reskin and translation
- Adaptive launcher icon (vector), release build with R8 minification
- README with build steps (Android Studio and command line), how to change app name, package, colours and icon, and how to publish on Google Play
What’s in the archive:
source/– complete Kotlin Gradle project- Signed release APK to try the app right away
- README.md and LICENSE.md
Requirements: Android Studio (Hedgehog or newer) or JDK 17 + Android SDK 34 for command-line builds. The app runs on Android 5.0+ (minSdk 21, targetSdk 34).
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