Horologist is a group of libraries that aim to supplement Wear OS developers with features that are commonly required by developers but not yet available.

The currently maintained branches of Horologist are.

Maintenance branches will not delete existing APIs and they should remain stable. However the main branch will actively update to incorporate new API guidance, removing or changing APIs.

Horologist provides the Media Toolkit: a set of libraries to build Media apps on Wear OS and a sample app that you can run to see the toolkit in action.

The toolkit includes:

• horologist-media-ui : common media UI components and screens like PlayerScreen .
• horologist-media : domain model for Media related functionality. Provides an abstraction to the UI module ( horologist-media-ui ) that is agnostic to the Player implementation.
• horologist-media-data : implementation of the domain module ( horologist-media ) using Media3 .
• horologist-media3-backend : Player on top of Media3 including functionalities such as avoiding playing music on the watch speaker.
• media sample : sample app to listen to downloaded music.

Player Screen	Browse Screen	Entity Screen

High quality prebuilt composables, such as Time and Date pickers.

• horologist-composables

DatePicker	TimePickerWith12HourClock	TimePicker

SegmentedProgressIndicator	SquareSegmentedProgressIndicator

Layout related functionality such as a Navigation Aware Scaffold.

• horologist-compose-layout

fillMaxRectangle()

Opinionated implementation of the components of the Wear Material Compose library , based on the specifications of Wear Material Design Kit .

• horologist-compose-material

Domain model for Audio related functionality. Volume Control, Output switching. Subscribing to a Flow of changes in audio or output.

• horologist-audio
• horologist-audio-ui

VolumeScreen

Libraries to help developers to build apps following the Sign-In guidelines for Wear OS .

• horologist-auth-composables : composable screens for authentication use cases, with no dependency on the auth-data library.
• horologist-auth-ui : composable screens for authentication use cases, with integration with the auth-data library
• horologist-auth-data : implementation for Wear apps for most of the authentication methods listed in the Authentication on wearables guide.
• horologist-auth-data-phone : implementation for Mobile apps for some of the authentication methods provided by the auth-data library.
• sample wear : sample wear app to authenticate using different methods.
• sample phone : sample phone app to authenticate using different methods.

The Horologist DataLayer library, provide common abstractions on top of the Wearable DataLayer . It includes libraries to build prompts on the phone to improve engagement with the correspondent Wear app and a sample to see the prompts in actions. Find guidance in the project documentation .

Kotlin coroutines flavoured TileService.

horologist-tiles

The name mirrors the Accompanist name, and is also Watch related.

https://en.wiktionary.org/wiki/horologist

horologist (Noun) Someone who makes or repairs timepieces, watches or clocks.

Please contribute! We will gladly review any pull requests submitted. Make sure to read the Contributing page to know what our expectations of contributions are.

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