Progress

iOS

import * as React from "react"
import { Progress } from "@/components/ui/progress"

function ProgressDemo() {
  const [value, setValue] = React.useState(13)
  React.useEffect(() => {
    const timer = setTimeout(() => setValue(66), 500)
    return () => clearTimeout(timer)
  }, [])
  return <Progress value={value} />
}

export function ProgressExample() {
  return (
    <ProgressDemo />
  )
}

import EsuissUI
import SwiftUI

struct ProgressDelayed: View {
  @State private var value = 13.0

  var body: some View {
    ProgressView(value: value, total: 100)
      .progressViewStyle(.bar)
      .task {
        try? await Task.sleep(for: .milliseconds(500))
        value = 66
      }
  }
}

import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableFloatStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
import com.esuiss.ui.components.Progress
import kotlinx.coroutines.delay

@Composable
fun ProgressDefault() {
    var value by rememberSaveable { mutableFloatStateOf(13f) }
    LaunchedEffect(Unit) {
        delay(500)
        value = 66f
    }
    Progress(value, Modifier.fillMaxWidth())
}

Progress renders a thin track with an indicator whose width follows value. The width animates with a Reanimated spring, clamped between 0 and 100 percent. Any children, such as ProgressLabel and ProgressValue, are placed in a row above the bar.

Use it for uploads, downloads and other tasks with a known amount of work.

Installation

$ pnpm dlx @esuiss/uim@latest add progress

Manual

Install the dependencies:

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

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

uniwind/components/ui/progress.tsx

import { cn } from "cn"
import Animated, {
  Extrapolation,
  interpolate,
  useAnimatedStyle,
  useDerivedValue,
  withSpring,
} from "react-native-reanimated"
import * as ProgressPrimitive from "@/components/primitives/progress"
import { resolveClassName } from "@/components/primitives/use-render"

function Progress({
  className,
  children,
  trackClassName,
  indicatorClassName,

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/progress.tsx, components/primitives/use-render.tsx.
Copy the source into components/ui/progress.tsx:

nativewind/components/ui/progress.tsx

import { cn } from "cn"
import Animated, {
  Extrapolation,
  interpolate,
  useAnimatedStyle,
  useDerivedValue,
  withSpring,
} from "react-native-reanimated"
import * as ProgressPrimitive from "@/components/primitives/progress"
import { resolveClassName } from "@/components/primitives/use-render"

function Progress({
  className,
  children,
  trackClassName,
  indicatorClassName,

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/progress.tsx, components/primitives/use-render.tsx.
Copy the source into components/ui/progress.tsx:

stylesheet/components/ui/progress.tsx

import { type StyleProp, StyleSheet, type ViewStyle } from "react-native"
import Animated, {
  Extrapolation,
  interpolate,
  useAnimatedStyle,
  useDerivedValue,
  withSpring,
} from "react-native-reanimated"
import * as ProgressPrimitive from "@/components/primitives/progress"
import { fontSize, radius, useTheme } from "@/components/ui/theme"

const styles = StyleSheet.create({
  root: {
    width: "100%",
    flexDirection: "row",
    flexWrap: "wrap",

Update the import paths to match your project.

Target iOS 17 or later.
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/Progress.swift

import SwiftUI

public struct BarProgressViewStyle: ProgressViewStyle {
  public init() {}

  public func makeBody(configuration: Configuration) -> some View {
    BarProgress(configuration: configuration)
  }
}

private struct BarProgress: View {
  let configuration: ProgressViewStyleConfiguration

  @Environment(\.accessibilityReduceMotion) private var reduceMotion

  var body: some View {

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:

kotlin/components/Progress.kt

package com.esuiss.ui.components

import androidx.compose.animation.core.Spring
import androidx.compose.animation.core.animateFloatAsState
import androidx.compose.animation.core.spring
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.foundation.text.BasicText

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

Usage

import { Progress, ProgressTrack, ProgressIndicator, ProgressLabel, ProgressValue } from "@/components/ui/progress"

<ProgressDemo />

Set value between min and max (0 and 100 by default). Pass null when the progress is unknown.

Add a ProgressLabel and a ProgressValue as children to show a caption and the formatted value; the value is pushed to the end of the row. Format the value with format and locale.

Style the bar with trackClassName and indicatorClassName. ProgressTrack and ProgressIndicator are also exported for custom layouts.

Examples

With label

A bar with a label and a live percentage value.

iOS

Progress (with label) on iOS in light mode

import * as React from "react"
import { Progress, ProgressLabel, ProgressValue } from "@/components/ui/progress"

function WithLabelDemo() {
  const [value, setValue] = React.useState(0)
  React.useEffect(() => {
    const timer = setInterval(() => {
      setValue((current) => (current >= 100 ? 0 : current + 10))
    }, 600)
    return () => clearInterval(timer)
  }, [])
  return (
    <Progress value={value}>
      <ProgressLabel>Uploading</ProgressLabel>
      <ProgressValue />
    </Progress>
  )
}

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

import EsuissUI
import SwiftUI

struct ProgressWithLabel: View {
  @State private var value = 0

  var body: some View {
    ProgressView(value: Double(value), total: 100) {
      Text("Uploading")
    } currentValueLabel: {
      Text(verbatim: "\(value)%")
    }
    .progressViewStyle(.bar)
    .task {
      while !Task.isCancelled {
        try? await Task.sleep(for: .milliseconds(600))
        value = value >= 100 ? 0 : value + 10
      }
    }
  }
}

import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableFloatStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
import com.esuiss.ui.components.Progress
import kotlinx.coroutines.delay

@Composable
fun ProgressWithLabel() {
    var value by rememberSaveable { mutableFloatStateOf(0f) }
    LaunchedEffect(Unit) {
        while (true) {
            delay(600)
            value = if (value >= 100f) 0f else value + 10f
        }
    }
    Progress(value, Modifier.fillMaxWidth(), label = "Uploading", showValue = true)
}

Complete

A bar at 100 percent.

iOS

Progress (complete) on iOS in light mode

import { Progress } from "@/components/ui/progress"

export function ProgressCompleteExample() {
  return (
    <Progress value={100} />
  )
}

import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import com.esuiss.ui.components.Progress

@Composable
fun ProgressCompleteExample() {
    Progress(100f, Modifier.fillMaxWidth())
}

Values

Bars at 0, 25, 50, 75 and 100 percent, the last with a custom indicator color.

iOS

import { View } from "react-native"
import { Progress } from "@/components/ui/progress"

export function ProgressValuesExample() {
  return (
    <View className="w-full gap-4">
      <Progress value={0} />
      <Progress value={25} />
      <Progress value={50} />
      <Progress value={75} />
      <Progress value={100} indicatorClassName="bg-green" />
    </View>
  )
}

import EsuissUI
import SwiftUI

struct ProgressValuesExample: View {
  var body: some View {
    VStack(spacing: 16) {
      ForEach([0.0, 25, 50, 75, 100], id: \.self) { value in
        ProgressView(value: value, total: 100)
          .progressViewStyle(.bar)
      }
    }
    .frame(maxWidth: .infinity)
  }
}

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

@Composable
fun ProgressValues() {
    Column(Modifier.fillMaxWidth(), verticalArrangement = Arrangement.spacedBy(16.dp)) {
        listOf(0f, 25f, 50f, 75f, 100f).forEach { Progress(it, Modifier.fillMaxWidth()) }
    }
}

API Reference

Progress

Root that holds the value and renders the track and indicator.

ExtendsReact.ComponentProps<typeof ProgressPrimitive.Root>

PropTypeDefault

About: Extra classes for the track.
Type: string
Default: —

About: Extra classes for the indicator.
Type: string
Default: —

ProgressTrack

Background bar.

ExtendsReact.ComponentProps<typeof ProgressPrimitive.Track>

ProgressIndicator

Animated fill that shows the current value.

ExtendsReact.ComponentProps<typeof ProgressPrimitive.Indicator>

ProgressLabel

Caption text above the bar.

ExtendsReact.ComponentProps<typeof ProgressPrimitive.Label>

ProgressValue

Formatted value text, aligned to the end.

ExtendsReact.ComponentProps<typeof ProgressPrimitive.Value>

Accessibility

The root has the progressbar role and reports min, max, the current value and a value text, so VoiceOver and TalkBack announce the progress.
Use getAccessibilityValueText to customize the announced text.

Notes

The track uses bg-surface-secondary and the indicator bg-accent.
Label and value text use text-label and text-label-secondary, with tabular numbers for the value.
Light and dark colors follow the system appearance.