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feat(player): add adaptive brightness mode support

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Extend the brightness slider to allow values below 0% which triggers
adaptive/auto brightness mode (screenBrightness = -1.0f). The brightness
indicator shows 'Auto' with an empty bar when in adaptive mode.

- Widen gesture range from [0,1] to [-0.1,1] so a small flick below 0 enters auto mode
- readCurrentBrightness returns -0.1f instead of 0.5f when system auto is active
- applyBrightness writes -1f to LayoutParams when value < 0
- PlayerAdjustmentIndicator displays 'Auto' in tertiary color for negative values
This commit is contained in:
Purefin Dev
2026-05-22 16:41:58 +00:00
parent 1274ab25f9
commit d14eec2346
2 changed files with 10 additions and 6 deletions
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8
app/src/main/java/hu/bbara/purefin/ui/screen/player/PlayerScreen.kt
View File

@@ -64,6 +64,8 @@ import kotlin.math.roundToInt
private const val CONTROLS_VISIBLE_SUBTITLE_BOTTOM_PADDING_FRACTION = 0.32f private const val CONTROLS_VISIBLE_SUBTITLE_BOTTOM_PADDING_FRACTION = 0.32f
private const val WIDE_VIDEO_ASPECT_RATIO = 16f / 9f private const val WIDE_VIDEO_ASPECT_RATIO = 16f / 9f
/** Small negative band below zero that represents adaptive/auto brightness mode. */
private const val AUTO_BRIGHTNESS_SENTINEL = -0.1f
@OptIn(UnstableApi::class) @OptIn(UnstableApi::class)
@Composable @Composable
@@ -148,7 +150,7 @@ fun PlayerScreen(
onDoubleTapCenter = { viewModel.togglePlayPause() }, onDoubleTapCenter = { viewModel.togglePlayPause() },
onVerticalDragLeft = { delta -> onVerticalDragLeft = { delta ->
val diff = (-delta / 800f) val diff = (-delta / 800f)
brightness = (brightness + diff).coerceIn(0f, 1f) brightness = (brightness + diff).coerceIn(AUTO_BRIGHTNESS_SENTINEL, 1f)
applyBrightness(activity, brightness) applyBrightness(activity, brightness)
}, },
onVerticalDragRight = { delta -> onVerticalDragRight = { delta ->
@@ -400,12 +402,12 @@ private fun formatSeekDelta(deltaMs: Long): String {
private fun readCurrentBrightness(activity: Activity?): Float { private fun readCurrentBrightness(activity: Activity?): Float {
val current = activity?.window?.attributes?.screenBrightness val current = activity?.window?.attributes?.screenBrightness
return if (current != null && current >= 0) current else 0.5f return if (current != null && current >= 0) current else AUTO_BRIGHTNESS_SENTINEL
} }
private fun applyBrightness(activity: Activity?, value: Float) { private fun applyBrightness(activity: Activity?, value: Float) {
activity ?: return activity ?: return
val params = activity.window.attributes val params = activity.window.attributes
params.screenBrightness = value params.screenBrightness = if (value < 0f) -1f else value
activity.window.attributes = params activity.window.attributes = params
} }

8
app/src/main/java/hu/bbara/purefin/ui/screen/player/components/PlayerAdjustmentIndicator.kt
View File

@@ -31,7 +31,8 @@ fun PlayerAdjustmentIndicator(
sliderHeight: Dp = 140.dp, sliderHeight: Dp = 140.dp,
) { ) {
val scheme = MaterialTheme.colorScheme val scheme = MaterialTheme.colorScheme
val percent = (value.coerceIn(0f, 1f) * 100).roundToInt() val isAuto = value < 0f
val percent = if (isAuto) 0 else (value * 100).roundToInt()
val clamped = value.coerceIn(0f, 1f) val clamped = value.coerceIn(0f, 1f)
Box( Box(
@@ -68,9 +69,10 @@ fun PlayerAdjustmentIndicator(
) )
} }
Spacer(modifier = Modifier.height(16.dp)) Spacer(modifier = Modifier.height(16.dp))
val label = if (isAuto) "Auto" else "$percent%"
Text( Text(
text = "$percent%", text = label,
color = scheme.onSurface, color = if (isAuto) scheme.tertiary else scheme.onSurface,
style = MaterialTheme.typography.titleMedium style = MaterialTheme.typography.titleMedium
) )
} }