Pebble.Companion.PreferenceStore

Generic phone-side preference storage exposed by the companion bridge.

Preferences are JSON values keyed by string. Use get / set for one-off reads and writes, and onPreference to observe changes from the phone settings UI.

import Json.Decode as Decode
import Json.Encode as Encode
import Pebble.Companion.PreferenceStore as PreferenceStore

type Msg
    = GotUnits (Result String ( String, Decode.Value ))

init _ =
    ( model, PreferenceStore.get "units" GotUnits )

saveUnits : String -> Cmd msg
saveUnits value =
    PreferenceStore.set "units" (Encode.string value)

subscriptions _ =
    PreferenceStore.onPreference GotUnits

For a runnable example, use the companion-demo-settings project template.