car settings: build rows as they scroll into view

Opening Settings built every row of buttons at once, which took a
noticeable moment. Only the ones on screen are built now.
This commit is contained in:
Seb3thehacker committed 2026-10-19 23:41:38 -07:00
1 parent e42cb767c9
commit 99ad0d03d7
1 file changed
+174 -123
@@ -5,6 +5,8 @@ import app.seb3thehacker.gearslip.car.theme.*
import android.os.Build
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.PaddingValues
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxSize
@@ -73,60 +75,76 @@ fun CarSettingsScreen() {
value = withContext(Dispatchers.Default) { CertSummary.read(context) }
}
Column(
Modifier
.fillMaxSize()
.verticalScroll(rememberScrollState())
.padding(horizontal = 24.dp, vertical = 16.dp),
LazyColumn(
Modifier.fillMaxSize(),
// Built as it scrolls into view rather than all at once: every row here is a set of
// buttons, and building the whole screen made opening Settings visibly slow.
contentPadding = PaddingValues(horizontal = 24.dp, vertical = 16.dp),
verticalArrangement = Arrangement.spacedBy(20.dp),
) {
ScreenHeader("Settings")
item {
ScreenHeader("Settings")
}
ChoiceRow(
"Open on connect",
listOf(CarSettings.HOME to "Home") + CarApps.all.filter { it.id != "settings" }.map { it.id to it.label },
open,
) { CarSettings.setOpenOnConnect(it) }
item {
ChoiceRow(
"Open on connect",
listOf(CarSettings.HOME to "Home") + CarApps.all.filter { it.id != "settings" }.map { it.id to it.label },
open,
) { CarSettings.setOpenOnConnect(it) }
}
ChoiceRow(
"Size",
listOf(1f to "Normal", 1.25f to "Large", 1.5f to "Extra large"),
scale,
) { CarSettings.setScale(it) }
item {
ChoiceRow(
"Size",
listOf(1f to "Normal", 1.25f to "Large", 1.5f to "Extra large"),
scale,
) { CarSettings.setScale(it) }
}
ChoiceRow(
"App theme",
listOf(AppTheme.PHONE to "Follow phone", AppTheme.LIGHT to "Light", AppTheme.DARK to "Dark"),
theme,
) { CarSettings.setAppTheme(it) }
item {
ChoiceRow(
"App theme",
listOf(AppTheme.PHONE to "Follow phone", AppTheme.LIGHT to "Light", AppTheme.DARK to "Dark"),
theme,
) { CarSettings.setAppTheme(it) }
}
ChoiceRow(
"Theme",
GsThemes.builtIn.map { it.id to it.name },
uiTheme,
) { CarSettings.setUiTheme(it) }
item {
ChoiceRow(
"Theme",
GsThemes.builtIn.map { it.id to it.name },
uiTheme,
) { CarSettings.setUiTheme(it) }
}
ChoiceRow(
"Map day/night",
listOf(NightMode.AUTO to "Auto", NightMode.DAY to "Day", NightMode.NIGHT to "Night"),
night,
) { CarSettings.setNightMode(it) }
item {
ChoiceRow(
"Map day/night",
listOf(NightMode.AUTO to "Auto", NightMode.DAY to "Day", NightMode.NIGHT to "Night"),
night,
) { CarSettings.setNightMode(it) }
}
ChoiceRow(
"Units",
listOf(Units.AUTO to "Auto", Units.IMPERIAL to "Imperial (mi, ft, °F)", Units.METRIC to "Metric (km, m, °C)"),
units,
) { CarSettings.setUnits(it) }
item {
ChoiceRow(
"Units",
listOf(Units.AUTO to "Auto", Units.IMPERIAL to "Imperial (mi, ft, °F)", Units.METRIC to "Metric (km, m, °C)"),
units,
) { CarSettings.setUnits(it) }
}
// For a head unit that reports the wrong size and stretches the picture (issue #12).
ChoiceRow(
"Screen size (next connection)",
listOf<ScreenSize?>(null).plus(SCREEN_PRESETS).plus(screenSize).distinct()
.map { it to (it?.toString() ?: "From the car") },
screenSize,
) { CarSettings.setScreenSize(it) }
item {
ChoiceRow(
"Screen size (next connection)",
listOf<ScreenSize?>(null).plus(SCREEN_PRESETS).plus(screenSize).distinct()
.map { it to (it?.toString() ?: "From the car") },
screenSize,
) { CarSettings.setScreenSize(it) }
}
if (screenSize != null) {
if (screenSize != null) item {
ChoiceRow(
"Fit to the screen",
listOf(ScreenFit.CROP to "Crop the edges", ScreenFit.SQUASH to "Squash to fit"),
@@ -134,105 +152,138 @@ fun CarSettingsScreen() {
) { CarSettings.setScreenFit(it) }
}
ChoiceRow(
"Nav bar",
listOf(
NavBarMode.SHOW to "Always show",
NavBarMode.HIDE_NAVIGATING to "Hide while navigating",
NavBarMode.HIDE to "Hide until tapped",
),
navBar,
) { CarSettings.setNavBarMode(it) }
item {
ChoiceRow(
"Nav bar",
listOf(
NavBarMode.SHOW to "Always show",
NavBarMode.HIDE_NAVIGATING to "Hide while navigating",
NavBarMode.HIDE to "Hide until tapped",
),
navBar,
) { CarSettings.setNavBarMode(it) }
}
ChoiceRow(
"Player in the nav bar",
listOf(false to "Skip buttons", true to "Song title"),
playerTitle,
) { CarSettings.setPlayerTitle(it) }
item {
ChoiceRow(
"Player in the nav bar",
listOf(false to "Skip buttons", true to "Song title"),
playerTitle,
) { CarSettings.setPlayerTitle(it) }
}
ChoiceRow(
"Autoplay on connect",
listOf(false to "Off", true to "On"),
autoplay,
) { CarSettings.setAutoplay(it) }
item {
ChoiceRow(
"Autoplay on connect",
listOf(false to "Off", true to "On"),
autoplay,
) { CarSettings.setAutoplay(it) }
}
ChoiceRow(
"Car audio",
listOf(false to "Bluetooth", true to "USB"),
pipeAudio,
) { CarSettings.setPipeAudio(it) }
Text(
"USB sends the phone's sound through Gearslip. Android asks to share your screen each " +
"drive, and a few apps block it. Bluetooth plays as the phone normally would, and " +
"Android never asks.",
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onSurfaceVariant,
)
if (!pipeAudio) {
item {
ChoiceRow(
"Car audio",
listOf(false to "Bluetooth", true to "USB"),
pipeAudio,
) { CarSettings.setPipeAudio(it) }
}
item {
Text(
"USB sends the phone's sound through Gearslip. Android asks to share your screen each " +
"drive, and a few apps block it. Bluetooth plays as the phone normally would, and " +
"Android never asks.",
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onSurfaceVariant,
)
}
if (!pipeAudio) item {
ChoiceRow(
"Warn when Bluetooth isn't connected",
listOf(false to "Off", true to "On"),
bluetoothWarning,
) { CarSettings.setBluetoothWarning(it) }
}
ChoiceRow(
"Warn when location is off",
listOf(false to "Off", true to "On"),
locationWarning,
) { CarSettings.setLocationWarning(it) }
ChoiceRow(
"Spoken directions",
listOf(false to "Off", true to "On"),
speakDirections,
) { CarSettings.setSpeakDirections(it) }
Text(
"Gearslip reads each turn aloud through the car's speakers, and the music dips while it " +
"speaks. Turn it off if your map app's own voice already plays in the car.",
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onSurfaceVariant,
)
item {
ChoiceRow(
"Warn when location is off",
listOf(false to "Off", true to "On"),
locationWarning,
) { CarSettings.setLocationWarning(it) }
}
ExperimentalFeatureRow(
title = "Use the phone's speech recognition",
description = "Listens through the phone's own speech service instead of Gearslip's. On " +
"most phones that's Google's, which may send your voice to Google. GrapheneOS has " +
"none, so Gearslip keeps using its own.",
checked = systemSpeech,
) { CarSettings.setSystemSpeech(it) }
item {
ChoiceRow(
"Spoken directions",
listOf(false to "Off", true to "On"),
speakDirections,
) { CarSettings.setSpeakDirections(it) }
}
WebPageSetting()
item {
Text(
"Gearslip reads each turn aloud through the car's speakers, and the music dips while it " +
"speaks. Turn it off if your map app's own voice already plays in the car.",
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onSurfaceVariant,
)
}
ScreenFit(vehicle)
item {
ExperimentalFeatureRow(
title = "Use the phone's speech recognition",
description = "Listens through the phone's own speech service instead of Gearslip's. On " +
"most phones that's Google's, which may send your voice to Google. GrapheneOS has " +
"none, so Gearslip keeps using its own.",
checked = systemSpeech,
) { CarSettings.setSystemSpeech(it) }
}
ChoiceRow(
"Experimental features",
listOf(false to "Hide", true to "Show"),
experimentalFeatures,
) { CarSettings.setExperimentalFeaturesEnabled(it) }
if (experimentalFeatures) {
item {
WebPageSetting()
}
item {
ScreenFit(vehicle)
}
item {
ChoiceRow(
"Experimental features",
listOf(false to "Hide", true to "Show"),
experimentalFeatures,
) { CarSettings.setExperimentalFeaturesEnabled(it) }
}
if (experimentalFeatures) item {
ExperimentalFeaturesList(carSensors)
}
Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
Text("Connection", style = MaterialTheme.typography.titleMedium, color = MaterialTheme.colorScheme.primary)
Info("Phone", "${Build.MANUFACTURER} ${Build.MODEL}")
Info("Vehicle", vehicle.ifEmpty { "-" })
Info("Video", display.ifEmpty { "-" })
Info("Certificate", cert?.headline ?: "Checking…")
item {
Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
Text("Connection", style = MaterialTheme.typography.titleMedium, color = MaterialTheme.colorScheme.primary)
Info("Phone", "${Build.MANUFACTURER} ${Build.MODEL}")
Info("Vehicle", vehicle.ifEmpty { "-" })
Info("Video", display.ifEmpty { "-" })
Info("Certificate", cert?.headline ?: "Checking…")
}
}
Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
Text("About", style = MaterialTheme.typography.titleMedium, color = MaterialTheme.colorScheme.primary)
Info("Version", app.seb3thehacker.gearslip.BuildConfig.VERSION_NAME)
Info("Build", app.seb3thehacker.gearslip.BuildConfig.VERSION_CODE.toString())
ExperimentalFeatureRow(
"What's new after updates",
"Show the list of changes once, the first time the car connects after an update.",
whatsNew,
) { CarSettings.setWhatsNewAfterUpdates(it) }
GsButton(onClick = CarSettings::openWhatsNew, tone = GsTone.Tonal, modifier = Modifier.height(56.dp)) {
Text("What's new", style = MaterialTheme.typography.titleMedium)
item {
Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
Text("About", style = MaterialTheme.typography.titleMedium, color = MaterialTheme.colorScheme.primary)
Info("Version", app.seb3thehacker.gearslip.BuildConfig.VERSION_NAME)
Info("Build", app.seb3thehacker.gearslip.BuildConfig.VERSION_CODE.toString())
ExperimentalFeatureRow(
"What's new after updates",
"Show the list of changes once, the first time the car connects after an update.",
whatsNew,
) { CarSettings.setWhatsNewAfterUpdates(it) }
GsButton(onClick = CarSettings::openWhatsNew, tone = GsTone.Tonal, modifier = Modifier.height(56.dp)) {
Text("What's new", style = MaterialTheme.typography.titleMedium)
}
}
}
}