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perf: WeekRow 改用 graphicsLayer 避免折叠动画重组

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将 offset() + alpha() 替换为 graphicsLayer { translationY / alpha }，
collapseProgress 变化时跳过 Composition/Layout，仅更新 Draw 阶段。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
xfy 2026-05-25 16:38:04 +08:00
parent 6ab63eae53
commit e175bb07da
1 changed files with 5 additions and 4 deletions
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9
core/src/main/kotlin/plus/rua/project/ui/CalendarMonthPage.kt
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@ -15,8 +15,7 @@ import androidx.compose.runtime.produceState
import androidx.compose.runtime.remember import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clipToBounds import androidx.compose.ui.draw.clipToBounds
import androidx.compose.ui.draw.alpha import androidx.compose.ui.graphics.graphicsLayer
import androidx.compose.foundation.layout.offset
import androidx.compose.ui.layout.onSizeChanged import androidx.compose.ui.layout.onSizeChanged
import androidx.compose.ui.platform.LocalDensity import androidx.compose.ui.platform.LocalDensity
import androidx.compose.ui.unit.dp import androidx.compose.ui.unit.dp
@ -209,8 +208,10 @@ private fun WeekRow(
if (isAnchor && phase1 >= 1f) Modifier.background(MaterialTheme.colorScheme.surface) if (isAnchor && phase1 >= 1f) Modifier.background(MaterialTheme.colorScheme.surface)
else Modifier else Modifier
) )
.offset(y = with(density) { yOffsetPx.toDp() }) .graphicsLayer {
.alpha(rowAlpha) translationY = yOffsetPx
this.alpha = rowAlpha
}
.then( .then(
if (weekIndex == 0 && rowHeightPx == 0) { if (weekIndex == 0 && rowHeightPx == 0) {
Modifier.onSizeChanged { size -> Modifier.onSizeChanged { size ->