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feat(ui-lvgl): power saving, review fixes, shared helpers

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Power: the UI loop sleeps until something is due (never with packets
queued); screen off puts the CPU at 80 MHz, the GT911 to sleep (unless a
tap wakes the screen) and the LP5814 in standby. GPS off now cuts the
L76K's rail and UART on the L2 (L2GpsProvider). The battery divider is
powered only for a reading (measured: settles at once); readings within
2 s are reused. The SD mount is retried at most every 5 s.

Fixes: WiFi left on after leaving a scan, live tiles' WiFi kept with the
screen off on the map, an ADC read every second for the status bar, touch
polled on every pass while dark, a scan cutting an update's WiFi, relay
count not refreshing in a channel thread, raw @[nick] in room previews.
Labels skip unchanged text (no redraw).

Helpers: scrollList, dimOverlay, settingRow, flexBox, nvs::get/put,
trailFilePath (a second save in the same minute no longer overwrites),
unreadTotal. Dead code removed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-09-27 00:12:08 +02:00
co-authored by Claude Opus 5.5
parent f5206f10b4
commit 23caa11f51
23 changed files with 337 additions and 347 deletions
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examples/companion_radio/ui-lvgl/BotScreen.h
+2 -8
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@@ -89,18 +89,12 @@ void UITask::buildBot() {
lv_obj_set_style_bg_color(tabs, lv_color_hex(theme::SURFACE), LV_PART_ITEMS);
lv_obj_add_event_cb(tabs, onBotTab, LV_EVENT_VALUE_CHANGED, NULL);
lv_obj_t* list = lv_obj_create(body);
styleSurface(list, theme::BG);
lv_obj_set_width(list, LV_PCT(100));
lv_obj_set_flex_grow(list, 1);
lv_obj_set_flex_flow(list, LV_FLEX_FLOW_COLUMN);
lv_obj_set_style_pad_row(list, theme::GAP, 0);
lv_obj_set_scrollbar_mode(list, LV_SCROLLBAR_MODE_ACTIVE);
lv_obj_t* list = scrollList(body);
for (int i = 0; i < botcfg::rowCount(s_tab); i++) {
const botcfg::Row& r = botcfg::row(s_tab, i);
uint8_t* fl = botcfg::flag(p, r.kind);
lv_obj_t* row = radioview::settingRow(list, r.label, fl || botcfg::isHour(r.kind) ? r.hint : nullptr);
lv_obj_t* row = settingRow(list, r.label, fl || botcfg::isHour(r.kind) ? r.hint : nullptr);
if (fl && r.kind == botcfg::DM_SCOPE) {
static const char* SCOPE[] = { "All", "Fav", "" };
lv_obj_t* seg = segmented(row, SCOPE, *fl ? 1 : 0, 110, 32);