darkokoa/compose-datetime-wheel-picker v1.4.0 on GitHub

Summary

Picker size is now driven entirely by Modifier and the parent's constraints — the size: DpSize parameter is gone.
The selected (centered) item can be styled independently via selectedTextStyle / selectedTextColor.
Smoother scrolling: less recomposition per selection change and less text measurement for CJK pickers.
Source-breaking — binaries compiled against 1.3.x still link via hidden compatibility overloads, which will be removed in the next major release.

⚠️ Breaking changes

Removed the size: DpSize parameter from WheelDatePicker, WheelTimePicker, WheelDateTimePicker, and WheelTextPicker. Size now comes from Modifier and the parent's constraints.
Defaults when an axis is unconstrained: width 256.dp (date, date-time) / 128.dp (time, text); height (128.dp / 3) * rowCount — so rowCount = 3 is still 128.dp, but a larger rowCount now grows the wheel instead of squeezing rows.
Renamed WheelTextPicker parameters: style → textStyle, color → textColor.
Invalid sizing input now throws IllegalArgumentException eagerly (non-positive rowCount, non-finite or non-positive viewport height).

🔧 Migration

// Before
WheelDatePicker(size = DpSize(300.dp, 160.dp)) { }
// After
WheelDatePicker(modifier = Modifier.size(300.dp, 160.dp)) { }

// Before — responsive width workaround
BoxWithConstraints(Modifier.fillMaxWidth()) {
  WheelDatePicker(size = DpSize(maxWidth, 200.dp)) { }
}
// After
WheelDatePicker(modifier = Modifier.fillMaxWidth().height(200.dp)) { }

// Keep the old total height for rowCount > 3
WheelDatePicker(modifier = Modifier.height(128.dp), rowCount = 5) { }

More examples: Sizing in the README.

✨ Added

selectedTextStyle / selectedTextColor to style the selected (centered) item independently, across date, time, date-time and text pickers — including the time separator and the CJK date suffixes (年/月/日, 년/월/일).
Both default to textStyle / textColor, so nothing changes unless you set them.

🐛 Fixed & improved

onScrollChanged / onScrollFinished are no longer captured stale (rememberUpdatedState).
Less recomposition on selection change, less text measurement for CJK pickers, and time picker column widths now update when the container is resized.
Partial TextStyles are merged with the defaults, so you can override just a few attributes.

📌 Known limitation

Sizing is resolved via subcomposition, so intrinsic-measurement parents (IntrinsicSize.Min / Max) will throw — pass an explicit width / height instead.

📦 Installation

implementation("io.github.darkokoa:datetime-wheel-picker:1.4.0")

Built with Kotlin 2.4.0, Compose Multiplatform 1.11.1, kotlinx-datetime 0.8.0, AGP 9.2.1, KSP 2.3.10.
Targets: Android (minSdk 21), JVM/Desktop, iOS (iosArm64, iosSimulatorArm64), JS, Wasm/JS.

What's Changed

fix(core): use rememberUpdatedState to avoid stale callback capture in WheelPicker by @darkokoa in #135
perf(core): optimize WheelPicker scroll rendering and reject invalid sizing inputs by @darkokoa in #136
feat(core)!: support distinct selected item text styling by @darkokoa in #138
chore(deps): update dependency com.google.devtools.ksp to v2.3.10 by @renovate[bot] in #137
feat(core)!: make picker size follow the Modifier by @darkokoa in #142

Full Changelog: v1.3.3...v1.4.0