Switch

iOS

import * as React from "react"
import { Switch } from "@/components/ui/switch"

function SwitchDemo({ initial = false }: { initial?: boolean }) {
  const [checked, setChecked] = React.useState(initial)
  return <Switch checked={checked} onCheckedChange={setChecked} />
}

export function SwitchExample() {
  return (
    <SwitchDemo />
  )
}

import EsuissUI
import SwiftUI

struct SwitchExample: View {
  var body: some View {
    SwitchDemo(initial: false)
  }
}

struct SwitchDemo: View {
  var size: SwitchStyle.Size = .default
  var label: LocalizedStringKey?

  @State private var checked: Bool

  init(initial: Bool, size: SwitchStyle.Size = .default, label: LocalizedStringKey? = nil) {
    self.size = size
    self.label = label
    _checked = State(initialValue: initial)
  }

  var body: some View {
    if let label {
      Toggle(isOn: $checked) { EmptyView() }
        .toggleStyle(.switch(size: size))
        .accessibilityLabel(Text(label))
    } else {
      Toggle(isOn: $checked) { EmptyView() }
        .toggleStyle(.switch(size: size))
    }
  }
}

import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import com.esuiss.ui.components.Switch

@Composable
fun SwitchExample() {
    SwitchDemo(initial = false)
}

@Composable
fun SwitchDemo(initial: Boolean) {
    var checked by rememberSaveable { mutableStateOf(initial) }
    Switch(checked, { checked = it })
}

Switch is a pressable track with a round thumb that slides between the off and on positions. The thumb animates with Reanimated and stretches slightly while pressed. It comes in two sizes, default and sm, and has an invalid state that adds a danger-colored border.

Use a switch for settings that take effect immediately. For choices that are submitted later, use Checkbox.

Installation

$ pnpm dlx @esuiss/uim@latest add switch

Manual

Install the dependencies:

npx expo install cn react-native-reanimated react-native-worklets

Add the pieces it builds on: the primitives components/primitives/switch.tsx, components/primitives/use-render.tsx.
Copy the source into components/ui/switch.tsx:

uniwind/components/ui/switch.tsx

import { cn } from "cn"
import * as React from "react"
import type { GestureResponderEvent } from "react-native"
import Animated, {
  Easing,
  ReduceMotion,
  useAnimatedStyle,
  withTiming,
} from "react-native-reanimated"
import * as SwitchPrimitives from "@/components/primitives/switch"
import { resolveClassName } from "@/components/primitives/use-render"

type SwitchSize = "default" | "sm"

const HIT_SLOP = { top: 8, bottom: 8, left: 12, right: 12 }

Update the import paths to match your project.

Install the dependencies:

npx expo install cn react-native-reanimated react-native-worklets

Add the pieces it builds on: the primitives components/primitives/switch.tsx, components/primitives/use-render.tsx.
Copy the source into components/ui/switch.tsx:

nativewind/components/ui/switch.tsx

import { cn } from "cn"
import * as React from "react"
import type { GestureResponderEvent } from "react-native"
import Animated, {
  Easing,
  ReduceMotion,
  useAnimatedStyle,
  withTiming,
} from "react-native-reanimated"
import * as SwitchPrimitives from "@/components/primitives/switch"
import { resolveClassName } from "@/components/primitives/use-render"

type SwitchSize = "default" | "sm"

const HIT_SLOP = { top: 8, bottom: 8, left: 12, right: 12 }

Update the import paths to match your project.

Install the dependencies:

npx expo install react-native-reanimated react-native-worklets

Add the pieces it builds on: the primitives components/primitives/switch.tsx, components/primitives/use-render.tsx.
Copy the source into components/ui/switch.tsx:

stylesheet/components/ui/switch.tsx

import * as React from "react"
import { type GestureResponderEvent, StyleSheet } from "react-native"
import Animated, {
  Easing,
  ReduceMotion,
  useAnimatedStyle,
  withTiming,
} from "react-native-reanimated"
import * as SwitchPrimitives from "@/components/primitives/switch"
import { shadow, useTheme } from "@/components/ui/theme"

type SwitchSize = "default" | "sm"

const HIT_SLOP = { top: 8, bottom: 8, left: 12, right: 12 }

const THUMB = {

Update the import paths to match your project.

Target iOS 17 or later.
Add the Swift package to your app:

Package.swift

.package(url: "https://github.com/phosphor-icons/swift", from: "2.1.0")

Copy the theme files every view uses:

swift/Theme/Theme.swift

import SwiftUI
import UIKit

struct RGBA: Sendable {
  let red: CGFloat
  let green: CGFloat
  let blue: CGFloat
  let alpha: CGFloat

  init(_ hex: UInt32, _ alpha: CGFloat = 1) {
    red = CGFloat((hex >> 16) & 0xFF) / 255
    green = CGFloat((hex >> 8) & 0xFF) / 255
    blue = CGFloat(hex & 0xFF) / 255
    self.alpha = alpha
  }

swift/Theme/Tokens.swift

import SwiftUI

extension Color {
  public static let surface = Color.adaptive(light: .init(0xFFFFFF), dark: .init(0x000000))
  public static let surfaceSecondary = Color.adaptive(light: .init(0xF5F5F7), dark: .init(0x161617))
  public static let surfaceTertiary = Color.adaptive(light: .init(0xE8E8ED), dark: .init(0x2C2C2E))
  public static let surfaceRaised = Color.adaptive(light: .init(0xFFFFFF), dark: .init(0x1D1D1F))
  public static let label = Color.adaptive(light: .init(0x1D1D1F), dark: .init(0xF5F5F7))
  public static let labelSecondary = Color.adaptive(light: .init(0x6E6E73), dark: .init(0xA1A1A6))
  public static let labelTertiary = Color.adaptive(light: .init(0x86868B), dark: .init(0x86868B))
  public static let labelQuaternary = Color.adaptive(light: .init(0xD2D2D7), dark: .init(0x424245))
  public static let control = Color.adaptive(light: .init(0x000000, 0.04), dark: .init(0xFFFFFF, 0.1))
  public static let controlPressed = Color.adaptive(light: .init(0x000000, 0.12), dark: .init(0xFFFFFF, 0.22))
  public static let controlSelected = Color.adaptive(light: .init(0x1D1D1F), dark: .init(0xF5F5F7))
  public static let controlDisabled = Color.adaptive(light: .init(0x000000, 0.03), dark: .init(0xFFFFFF, 0.05))
  public static let onControlSelected = Color.adaptive(light: .init(0xFFFFFF), dark: .init(0x000000))

Copy the source and every file it uses:

swift/Components/Switch.swift

import SwiftUI

public struct SwitchStyle: ToggleStyle {
  public enum Size: CaseIterable, Sendable {
    case `default`, sm

    var track: CGSize {
      switch self {
      case .default: CGSize(width: 52, height: 24)
      case .sm: CGSize(width: 44, height: 20)
      }
    }

    var thumbHeight: CGFloat {
      switch self {
      case .default: 20

swift/Components/Checkbox.swift

import PhosphorSwift
import SwiftUI

extension Shadow {
  static let control = Shadow(color: .black.opacity(0.08), radius: 0.5, y: 0.5)
  static let thumb = Shadow(color: .black.opacity(0.12), radius: 1.5, y: 1)
}

struct SelectionIndicator<Mark: View>: View {
  let checked: Bool
  let pressed: Bool
  let cornerRadius: CGFloat
  let mark: Mark

  @Environment(\.isEnabled) private var isEnabled
  @Environment(\.isInvalid) private var invalid

swift/Components/Field.swift

import SwiftUI

extension EnvironmentValues {
  @Entry public var isInvalid = false
  @Entry var fieldInset = false
  @Entry var fieldGroupInset = false
  @Entry var fieldSetInset = false
}

extension View {
  public func invalid(_ isInvalid: Bool = true) -> some View {
    environment(\.isInvalid, isInvalid)
  }
}

public enum FieldOrientation: CaseIterable, Sendable {

swift/Components/Haptics.swift

import SwiftUI

extension EnvironmentValues {
  @Entry public var hapticsEnabled = true
}

extension View {
  public func haptics(_ enabled: Bool) -> some View {
    environment(\.hapticsEnabled, enabled)
  }

  func hapticFeedback<Trigger: Equatable>(_ feedback: SensoryFeedback, trigger: Trigger) -> some View {
    modifier(HapticFeedbackModifier(feedback: feedback, trigger: trigger) { _, _ in true })
  }

  func hapticFeedback<Trigger: Equatable>(

swift/Components/Separator.swift

import SwiftUI

public struct Separator: View {
  let orientation: Axis

  public init(_ orientation: Axis = .horizontal) {
    self.orientation = orientation
  }

  public var body: some View {
    Rectangle()
      .fill(Color.separator)
      .frame(width: orientation == .vertical ? 1 : nil, height: orientation == .horizontal ? 1 : nil)
      .frame(maxWidth: orientation == .horizontal ? .infinity : nil, maxHeight: orientation == .vertical ? .infinity : nil)
      .accessibilityHidden(true)
  }

swift/Components/TextVariant.swift

import SwiftUI

public enum TextVariant: CaseIterable, Sendable {
  case `default`, h1, h2, h3, h4, p, blockquote, code, lead, large, small, muted

  var style: TextStyle {
    switch self {
    case .h1: .xl3
    case .h2: .xl2
    case .h3: .xl
    case .h4, .lead, .large: .lg
    case .code, .small, .muted: .sm
    default: .base
    }
  }

Add the files to your app target.

Set minSdk to 24 or higher and add the dependencies:

build.gradle.kts

implementation(platform("androidx.compose:compose-bom:2026.09.00"))
implementation("androidx.compose.foundation:foundation")
implementation("androidx.compose.ui:ui")

Copy the theme files every view uses:

kotlin/theme/Theme.kt

package com.esuiss.ui.theme

import androidx.compose.foundation.isSystemInDarkTheme
import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.runtime.Immutable
import androidx.compose.runtime.staticCompositionLocalOf
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.dropShadow
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.Shape
import androidx.compose.ui.graphics.shadow.Shadow as DropShadow
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.text.style.LineHeightStyle
import androidx.compose.ui.unit.Dp
import androidx.compose.ui.unit.DpOffset

kotlin/theme/Tokens.kt

package com.esuiss.ui.theme

import androidx.compose.runtime.Immutable
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.unit.dp

@Immutable
data class Colors(
    val surface: Color,
    val surfaceSecondary: Color,
    val surfaceTertiary: Color,
    val surfaceRaised: Color,
    val label: Color,
    val labelSecondary: Color,
    val labelTertiary: Color,
    val labelQuaternary: Color,

Copy the source and every file it uses:

kotlin/components/Switch.kt

package com.esuiss.ui.components

import androidx.compose.animation.core.animateDpAsState
import androidx.compose.animation.core.tween
import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.interaction.collectIsPressedAsState
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.offset
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.selection.toggleable
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue

kotlin/components/Content.kt

package com.esuiss.ui.components

import androidx.compose.runtime.compositionLocalOf
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.unit.Dp
import androidx.compose.ui.unit.dp

val LocalContentStyle = compositionLocalOf { TextStyle.Default }

val LocalContentColor = compositionLocalOf { Color.Unspecified }

val LocalIconSize = compositionLocalOf { 20.dp }

kotlin/components/Field.kt

package com.esuiss.ui.components

import androidx.compose.foundation.background
import androidx.compose.foundation.gestures.Orientation
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.ColumnScope
import androidx.compose.foundation.layout.LayoutScopeMarker
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.RowScope
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.heightIn
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.text.BasicText

kotlin/components/FormSupport.kt

package com.esuiss.ui.components

import android.provider.Settings
import androidx.compose.animation.core.CubicBezierEasing
import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.gestures.Orientation
import androidx.compose.foundation.text.selection.TextSelectionColors
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.draw.drawWithContent
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.geometry.Size

kotlin/components/Haptics.kt

package com.esuiss.ui.components

import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.runtime.remember
import androidx.compose.runtime.staticCompositionLocalOf
import androidx.compose.ui.hapticfeedback.HapticFeedback
import androidx.compose.ui.hapticfeedback.HapticFeedbackType
import androidx.compose.ui.platform.LocalHapticFeedback

val LocalHapticsEnabled = staticCompositionLocalOf { true }

@Composable
fun ProvideHaptics(enabled: Boolean, content: @Composable () -> Unit) {
    CompositionLocalProvider(LocalHapticsEnabled provides enabled, content = content)
}

kotlin/components/Label.kt

package com.esuiss.ui.components

import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.RowScope
import androidx.compose.foundation.text.BasicText
import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import com.esuiss.ui.theme.EsuissTheme
import com.esuiss.ui.theme.Typography

@Composable

kotlin/components/Separator.kt

package com.esuiss.ui.components

import androidx.compose.foundation.background
import androidx.compose.foundation.gestures.Orientation
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.width
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import com.esuiss.ui.theme.EsuissTheme

@Composable
fun Separator(

Update the com.esuiss.ui package names to match your project.

Usage

import { Switch } from "@/components/ui/switch"

<SwitchDemo />

Use defaultChecked for an uncontrolled switch, or checked with onCheckedChange to control it.

A switch has no visible text of its own. Pair it with a Label and link them with accessibilityLabelledBy and the label's nativeID, or set an accessibilityLabel. Give the Label an onPress that toggles the value if the label should be pressable too.

The switch has a hit slop around it, so it is easier to press than its visual size.

Examples

Checked

A switch that starts on.

iOS

import * as React from "react"
import { Switch } from "@/components/ui/switch"

function SwitchDemo({ initial = false }: { initial?: boolean }) {
  const [checked, setChecked] = React.useState(initial)
  return <Switch checked={checked} onCheckedChange={setChecked} />
}

export function SwitchCheckedExample() {
  return (
    <SwitchDemo initial />
  )
}

import EsuissUI
import SwiftUI

struct SwitchCheckedExample: View {
  var body: some View {
    SwitchDemo(initial: true)
  }
}

struct SwitchDemo: View {
  var size: SwitchStyle.Size = .default
  var label: LocalizedStringKey?

  @State private var checked: Bool

  init(initial: Bool, size: SwitchStyle.Size = .default, label: LocalizedStringKey? = nil) {
    self.size = size
    self.label = label
    _checked = State(initialValue: initial)
  }

  var body: some View {
    if let label {
      Toggle(isOn: $checked) { EmptyView() }
        .toggleStyle(.switch(size: size))
        .accessibilityLabel(Text(label))
    } else {
      Toggle(isOn: $checked) { EmptyView() }
        .toggleStyle(.switch(size: size))
    }
  }
}

import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import com.esuiss.ui.components.Switch

@Composable
fun SwitchCheckedExample() {
    SwitchDemo(initial = true)
}

@Composable
fun SwitchDemo(initial: Boolean) {
    var checked by rememberSaveable { mutableStateOf(initial) }
    Switch(checked, { checked = it })
}

Sizes

The sm and default sizes side by side.

iOS

import { View } from "react-native"
import { Switch } from "@/components/ui/switch"

export function SwitchSizesExample() {
  return (
    <View className="flex-row items-center gap-4">
      <Switch size="sm" defaultChecked accessibilityLabel="Wi-Fi" />
      <Switch defaultChecked accessibilityLabel="Bluetooth" />
    </View>
  )
}

import EsuissUI
import SwiftUI

struct SwitchSizesExample: View {
  var body: some View {
    HStack(spacing: 16) {
      SwitchDemo(initial: true, size: .sm, label: "Wi-Fi")
      SwitchDemo(initial: true, label: "Bluetooth")
    }
  }
}

struct SwitchDemo: View {
  var size: SwitchStyle.Size = .default
  var label: LocalizedStringKey?

  @State private var checked: Bool

  init(initial: Bool, size: SwitchStyle.Size = .default, label: LocalizedStringKey? = nil) {
    self.size = size
    self.label = label
    _checked = State(initialValue: initial)
  }

  var body: some View {
    if let label {
      Toggle(isOn: $checked) { EmptyView() }
        .toggleStyle(.switch(size: size))
        .accessibilityLabel(Text(label))
    } else {
      Toggle(isOn: $checked) { EmptyView() }
        .toggleStyle(.switch(size: size))
    }
  }
}

import androidx.compose.foundation.clickable
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Row
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.semantics.contentDescription
import androidx.compose.ui.semantics.semantics
import androidx.compose.ui.unit.dp
import com.esuiss.ui.components.Switch
import com.esuiss.ui.components.SwitchSize

fun Modifier.label(text: String): Modifier = semantics { contentDescription = text }

@Composable
fun Modifier.toggles(onToggle: () -> Unit): Modifier = clickable(
    interactionSource = remember { MutableInteractionSource() },
    indication = null,
    onClick = onToggle,
)

@Composable
fun SwitchSizes() {
    var wifi by rememberSaveable { mutableStateOf(true) }
    var bluetooth by rememberSaveable { mutableStateOf(true) }
    Row(horizontalArrangement = Arrangement.spacedBy(16.dp), verticalAlignment = Alignment.CenterVertically) {
        Switch(wifi, { wifi = it }, Modifier.label("Wi-Fi"), size = SwitchSize.Sm)
        Switch(bluetooth, { bluetooth = it }, Modifier.label("Bluetooth"))
    }
}

With label

A controlled switch next to a pressable label.

iOS

Switch (with label) on iOS in light mode

import * as React from "react"
import { View } from "react-native"
import { Label } from "@/components/ui/label"
import { Switch } from "@/components/ui/switch"

function WithLabelDemo() {
  const [checked, setChecked] = React.useState(false)
  return (
    <View className="flex-row items-center gap-2">
      <Switch
        accessibilityLabelledBy="airplane-mode"
        checked={checked}
        onCheckedChange={setChecked}
      />
      <Label nativeID="airplane-mode" onPress={() => setChecked((v) => !v)}>
        Airplane mode
      </Label>
    </View>
  )
}

export function SwitchWithLabelExample() {
  return (
    <WithLabelDemo />
  )
}

import EsuissUI
import SwiftUI

struct WithLabelDemo: View {
  @State private var checked = false

  var body: some View {
    Toggle(isOn: $checked) {
      FieldLabel("Airplane mode")
    }
    .toggleStyle(.switch(size: .default))
  }
}

import androidx.compose.foundation.clickable
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Row
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.semantics.contentDescription
import androidx.compose.ui.semantics.semantics
import androidx.compose.ui.unit.dp
import com.esuiss.ui.components.Label
import com.esuiss.ui.components.Switch

fun Modifier.label(text: String): Modifier = semantics { contentDescription = text }

@Composable
fun Modifier.toggles(onToggle: () -> Unit): Modifier = clickable(
    interactionSource = remember { MutableInteractionSource() },
    indication = null,
    onClick = onToggle,
)

@Composable
fun SwitchWithLabel() {
    var checked by rememberSaveable { mutableStateOf(false) }
    Row(horizontalArrangement = Arrangement.spacedBy(8.dp), verticalAlignment = Alignment.CenterVertically) {
        Switch(checked, { checked = it }, Modifier.label("Airplane mode"))
        Label("Airplane mode", Modifier.toggles { checked = !checked })
    }
}

With description

A switch with a label and a line of supporting text.

iOS

Switch (with description) on iOS in light mode

import * as React from "react"
import { View } from "react-native"
import { Label } from "@/components/ui/label"
import { Switch } from "@/components/ui/switch"
import { Text } from "@/components/ui/text"

function WithDescriptionDemo() {
  const [checked, setChecked] = React.useState(true)
  return (
    <View className="flex-row items-center justify-between gap-4 rounded-2xl bg-surface-secondary p-4">
      <View className="flex-1 gap-1">
        <Label nativeID="marketing" onPress={() => setChecked((v) => !v)}>
          Marketing emails
        </Label>
        <Text className="text-sm text-label-secondary">
          Receive emails about new products.
        </Text>
      </View>
      <Switch
        accessibilityLabelledBy="marketing"
        checked={checked}
        onCheckedChange={setChecked}
      />
    </View>
  )
}

export function SwitchWithDescriptionExample() {
  return (
    <WithDescriptionDemo />
  )
}

import EsuissUI
import SwiftUI

struct WithDescriptionDemo: View {
  @State private var checked = true

  var body: some View {
    HStack(spacing: 16) {
      VStack(alignment: .leading, spacing: 4) {
        FieldLabel("Marketing emails")
          .onTapGesture { checked.toggle() }
        Text("Receive emails about new products.")
          .textStyle(.sm)
          .foregroundStyle(Color.labelSecondary)
      }
      .frame(maxWidth: .infinity, alignment: .leading)
      Toggle(isOn: $checked) { EmptyView() }
        .toggleStyle(.switch(size: .default))
        .accessibilityLabel(Text("Marketing emails"))
    }
    .padding(16)
    .background(Color.surfaceSecondary, in: RoundedRectangle(cornerRadius: Radius.xl2, style: .continuous))
  }
}

import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.semantics.contentDescription
import androidx.compose.ui.semantics.semantics
import androidx.compose.ui.unit.dp
import com.esuiss.ui.components.Label
import com.esuiss.ui.components.Switch
import com.esuiss.ui.components.Text
import com.esuiss.ui.theme.EsuissTheme
import com.esuiss.ui.theme.Radius
import com.esuiss.ui.theme.Typography

fun Modifier.label(text: String): Modifier = semantics { contentDescription = text }

@Composable
fun Modifier.toggles(onToggle: () -> Unit): Modifier = clickable(
    interactionSource = remember { MutableInteractionSource() },
    indication = null,
    onClick = onToggle,
)

@Composable
fun SwitchWithDescription() {
    var checked by rememberSaveable { mutableStateOf(true) }
    val colors = EsuissTheme.colors
    val shape = RoundedCornerShape(Radius.xl2)
    Row(
        modifier = Modifier
            .fillMaxWidth()
            .background(colors.surfaceSecondary, shape)
            .padding(16.dp),
        horizontalArrangement = Arrangement.spacedBy(16.dp),
        verticalAlignment = Alignment.CenterVertically,
    ) {
        Column(Modifier.weight(1f), verticalArrangement = Arrangement.spacedBy(4.dp)) {
            Label("Marketing emails", Modifier.toggles { checked = !checked })
            Text("Receive emails about new products.", style = Typography.sm.copy(color = colors.labelSecondary))
        }
        Switch(checked, { checked = it }, Modifier.label("Marketing emails"))
    }
}

Disabled

Disabled switches in the off and on states.

iOS

import { View } from "react-native"
import { Switch } from "@/components/ui/switch"

export function SwitchDisabledExample() {
  return (
    <View className="gap-4">
      <Switch disabled checked={false} onCheckedChange={() => {}} />
      <Switch disabled checked onCheckedChange={() => {}} />
    </View>
  )
}

import EsuissUI
import SwiftUI

struct SwitchDisabledExample: View {
  var body: some View {
    VStack(alignment: .leading, spacing: 16) {
      Toggle(isOn: .constant(false)) { EmptyView() }
      Toggle(isOn: .constant(true)) { EmptyView() }
    }
    .toggleStyle(.switch(size: .default))
    .disabled(true)
  }
}

import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.runtime.Composable
import androidx.compose.ui.unit.dp
import com.esuiss.ui.components.Switch

@Composable
fun SwitchDisabled() {
    Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
        Switch(false, {}, enabled = false)
        Switch(true, {}, enabled = false)
    }
}

Invalid

A switch with the invalid border next to its label.

iOS

import { View } from "react-native"
import { Label } from "@/components/ui/label"
import { Switch } from "@/components/ui/switch"

export function SwitchInvalidExample() {
  return (
    <View className="flex-row items-center gap-2">
      <Switch invalid accessibilityLabelledBy="terms-switch" />
      <Label nativeID="terms-switch">Accept terms</Label>
    </View>
  )
}

import EsuissUI
import SwiftUI

struct InvalidDemo: View {
  @State private var checked = false

  var body: some View {
    Toggle(isOn: $checked) {
      FieldLabel("Accept terms")
    }
    .toggleStyle(.switch(size: .default))
    .invalid()
  }
}

import androidx.compose.foundation.clickable
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Row
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.semantics.contentDescription
import androidx.compose.ui.semantics.semantics
import androidx.compose.ui.unit.dp
import com.esuiss.ui.components.Label
import com.esuiss.ui.components.Switch

fun Modifier.label(text: String): Modifier = semantics { contentDescription = text }

@Composable
fun Modifier.toggles(onToggle: () -> Unit): Modifier = clickable(
    interactionSource = remember { MutableInteractionSource() },
    indication = null,
    onClick = onToggle,
)

@Composable
fun SwitchInvalid() {
    var checked by rememberSaveable { mutableStateOf(false) }
    Row(horizontalArrangement = Arrangement.spacedBy(8.dp), verticalAlignment = Alignment.CenterVertically) {
        Switch(checked, { checked = it }, Modifier.label("Accept terms"), invalid = true)
        Label("Accept terms")
    }
}

API Reference

Switch

ExtendsReact.ComponentProps<typeof SwitchPrimitives.Root>

PropTypeDefault

About: default or sm.
Type: SwitchSize
Default: "default"

About: Adds a danger-colored border when not disabled.
Type: boolean
Default: —

Accessibility

The root has the switch role and reports checked and disabled in its accessibility state, so VoiceOver and TalkBack announce whether it is on.
The thumb is hidden from the accessibility tree.
Label every switch with accessibilityLabel or accessibilityLabelledBy.
The thumb animation follows the system reduce motion setting.

Notes

The track uses bg-accent when on and bg-label-quaternary when off, with bg-accent-disabled and bg-control-disabled for the disabled states.
The thumb uses bg-surface, or bg-label in dark mode.
Light and dark colors follow the system appearance.