Fields
75 selectable fields across date/time, activity, body, system,
environment, weather and custom text, numbered to match
watchface.io/docs/datafields so the two catalogues line up. All four
slots (both top, both bottom) pick from the same table and the bottom
captions follow the selection. tools/gen_fields.py owns the table and
emits FieldTable.mc, settings.xml and both languages' strings, so those
cannot drift apart.
Fields.Ctx fetches each API at most once per draw, and only if some slot
asks -- the forecast, user profile and sensor history lookups are lazy.
The rest of that catalogue is deliberately absent: OpenWeatherMap and
StormGlass need network calls and user API keys, the per-sport weekly and
28-day aggregates come from a phone-side Garmin Connect integration rather
than any on-device API, and the app complications need those apps
installed. README section 7 lists what was left out and why.
Permissions
UserProfile and SensorHistory are now declared; without them resting heart
rate, VO2 max, pulse ox and body battery throw at runtime. Sensor turns
out to be rejected outright for type="watchface", so altitude and pressure
read from Activity.Info instead.
Always-on display
AMOLED devices need the lit-pixel count cut while asleep. drawAmbient
drops the band fill and the unlit ticks, dims what remains, hides the
complications, and walks the layout within +/-4 px per minute so nothing
burns in. Gated on requiresBurnInProtection, so MIP devices are untouched.
Icons
The comps' sunrise and weather icons have two- and three-pixel features.
Rebuilding them from circles and lines looked right at 454 px and turned to
mush at 280. They are now rasterised from the design paths once per screen
width and tinted with drawBitmap2(:tintColor) -- which needs
packingFormat="png", since a palettised source is refused at runtime.
Launcher icons are generated at the five sizes the devices ask for.
All 17 devices build; checked on fenix847mm and enduro3 in the simulator.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
