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feat(ui): trail — surface "waiting for GPS fix" state on start

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Two visible cues when the user starts tracking without a fix:

1. The Enter alert now reads "Waiting for GPS fix" instead of
   "Tracking started" when the LocationProvider isn't valid at the
   moment of toggling. Tracking is still armed — sampling starts as
   soon as the GPS lock comes up.

2. The Summary Status field shows "waiting fix" while active and the
   ring is still empty (no point ever sampled). It flips to "tracking"
   once the first point lands. The detection is "any point recorded
   yet?" rather than "is the fix valid right this second", which is
   stable across the cadence of UITask::loop sampling.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-05-25 10:26:33 +02:00
parent 2538751c27
commit b12d5a8705
1 changed files with 24 additions and 4 deletions
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28
examples/companion_radio/ui-new/TrailScreen.h
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@@ -62,20 +62,40 @@ public:
if (_view == V_LIST && c == KEY_UP && _list_scroll > 0) { _list_scroll--; return true; }
if (_view == V_LIST && c == KEY_DOWN) { _list_scroll++; return true; } // clamped on render
if (c == KEY_ENTER) {
_store->setActive(!_store->isActive());
_task->showAlert(_store->isActive() ? "Tracking started" : "Tracking stopped", 800);
bool now_active = !_store->isActive();
_store->setActive(now_active);
if (now_active) {
_task->showAlert(gpsHasFix() ? "Tracking started" : "Waiting for GPS fix", 1000);
} else {
_task->showAlert("Tracking stopped", 800);
}
return true;
}
return false;
}
// True when the global SensorManager has a usable GPS fix.
static bool gpsHasFix() {
#if ENV_INCLUDE_GPS == 1
LocationProvider* loc = sensors.getLocationProvider();
return loc && loc->isValid();
#else
return false;
#endif
}
private:
// Format the i-th summary line into buf. Indices match SUMMARY_ITEM_COUNT.
void summaryItem(int i, char* buf, size_t n) const {
switch (i) {
case 0:
snprintf(buf, n, "Status: %s", _store->isActive() ? "tracking" : "stopped");
case 0: {
const char* st;
if (!_store->isActive()) st = "stopped";
else if (_store->empty()) st = "waiting fix";
else st = "tracking";
snprintf(buf, n, "Status: %s", st);
break;
}
case 1:
snprintf(buf, n, "Points: %d / %d", _store->count(), TrailStore::CAPACITY);
break;