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suiss/ui · Chart

Area Chart Range

A heart-rate band showing each hour's low-to-high range as a shaded area with an average line through it.

Area Chart Range is an open-source chart from suiss/ui for React, React Native, SwiftUI and Jetpack Compose. The @esuiss/ui CLI copies its source into your project, so you own the code.

components/charts/area-chart-range.tsx
"use client"

import {
  Area,
  CartesianGrid,
  ComposedChart,
  Line,
  XAxis,
  YAxis,
} from "recharts"

import { Card, CardContent, CardHeader } from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartTooltip,

A health-style heart-rate card that shades each hour's low-to-high range and draws the average as a line through the band. Use it for any metric where the spread matters as much as the typical value, such as temperatures or response times.

Installation

CLI

$ pnpm dlx shadcn@latest add @esuiss/area-chart-range

Works in any project with a components.json. See Installation for the one-line registry setup. Or use the suiss/ui CLI:

$ pnpm dlx @esuiss/ui@latest add charts area-chart-range

Manual

  1. Install the dependencies:
$ pnpm add recharts

  1. Add the pieces it builds on: Card, Chart.

  2. Copy the source into components/charts/area-chart-range.tsx:

components/charts/area-chart-range.tsx
"use client"

import {
  Area,
  CartesianGrid,
  ComposedChart,
  Line,
  XAxis,
  YAxis,
} from "recharts"

import { Card, CardContent, CardHeader } from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  1. Update the import paths to match your project.

Usage

import { AreaChartRange } from "@/components/charts/area-chart-range"
<AreaChartRange />

Feed in one record per period with a two-number range array and an average value; the header's overall low and high are derived from the data. Adjust the value axis domain and ticks to fit your range, and change the unit text in the tooltip and header. Set both colors in chartConfig.

Notes

The value axis has a fixed domain, so readings outside it get clipped until you widen it. Focus the plot and use the arrow keys to move the tooltip between hours.

iOS
Area (range) on iOS in light modeArea (range) on iOS in dark mode
uniwind/components/charts/area-chart-range.tsx
import { View } from "react-native"
import { Card, CardContent, CardHeader } from "@/components/ui/card"
import {
  Area,
  CartesianGrid,
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
  ComposedChart,
  Line,
  XAxis,
  YAxis,
} from "@/components/ui/chart"
import { Text } from "@/components/ui/text"
swift/Charts/AreaChartRange.swift
import Charts
import SwiftUI

private let readings: [(low: Double, high: Double, average: Double)] = [
  (48, 62, 54), (46, 60, 52), (47, 64, 54), (45, 61, 52), (48, 63, 55), (46, 66, 54),
  (56, 78, 64), (58, 82, 66), (64, 88, 74), (66, 90, 76), (64, 92, 74), (66, 89, 75),
  (65, 94, 76), (66, 90, 75), (64, 88, 74), (65, 91, 76), (66, 92, 75), (68, 96, 78),
  (104, 158, 126), (102, 150, 122), (70, 94, 78), (66, 90, 74), (60, 82, 68), (52, 70, 58),
]

private let hours = readings.indices.map { "\($0):00" }

private let chartConfig: ChartConfig = [
  "range": .init("Range", color: Palette.red500),
  "average": .init("Average", color: Palette.red500),
]
kotlin/charts/AreaChartRange.kt
package com.esuiss.ui.charts

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.height
import androidx.compose.foundation.text.BasicText
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import com.esuiss.ui.components.Card
import com.esuiss.ui.components.CardContent
import com.esuiss.ui.components.CardSize
import com.esuiss.ui.components.CardVariant

A ComposedChart that pairs a range Area, filled between each hour's low and high reading, with a Line for the hourly average. The header shows the day's lowest and highest values in BPM, and the tooltip formats both the range and the average with a custom row built from Text.

Installation

$ pnpm dlx shadcn@latest add @esuiss-rn/area-chart-range

See Installation for the components.json setup. Or use the suiss/ui CLI:

$ pnpm dlx @esuiss/ui@latest add area-chart-range
$ pnpm dlx @esuiss/ui@latest add area-chart-range --platform swift
$ pnpm dlx @esuiss/ui@latest add area-chart-range --platform kotlin

The CLI also adds what it builds on: Card, Chart, Text.

Manual

  1. Add the pieces it builds on: Card, Chart, Text.

  2. Copy the source into components/charts/area-chart-range.tsx:

uniwind/components/charts/area-chart-range.tsx
import { View } from "react-native"
import { Card, CardContent, CardHeader } from "@/components/ui/card"
import {
  Area,
  CartesianGrid,
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
  ComposedChart,
  Line,
  XAxis,
  YAxis,
} from "@/components/ui/chart"
import { Text } from "@/components/ui/text"
  1. Update the import paths to match your project.

  1. Add the pieces it builds on: Card, Chart, Text.

  2. Copy the source into components/charts/area-chart-range.tsx:

nativewind/components/charts/area-chart-range.tsx
import { View } from "react-native"
import { Card, CardContent, CardHeader } from "@/components/ui/card"
import {
  Area,
  CartesianGrid,
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
  ComposedChart,
  Line,
  XAxis,
  YAxis,
} from "@/components/ui/chart"
import { Text } from "@/components/ui/text"
  1. Update the import paths to match your project.

  1. Add the pieces it builds on: Card, Chart, Text.

  2. Copy the source into components/charts/area-chart-range.tsx:

stylesheet/components/charts/area-chart-range.tsx
import { StyleSheet, View } from "react-native"
import { Card, CardContent, CardHeader } from "@/components/ui/card"
import {
  Area,
  CartesianGrid,
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
  ComposedChart,
  Line,
  XAxis,
  YAxis,
} from "@/components/ui/chart"
import { Text } from "@/components/ui/text"
import { fontSize, useTheme } from "@/components/ui/theme"
  1. Update the import paths to match your project.

  1. Target iOS 17 or later.

  2. 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

public enum EsuissColor {
  public static let background = Color.adaptive(light: .init(0xFFFFFF), dark: .init(0x000000))
  public static let foreground = Color.adaptive(light: .init(0x1D1D1F), dark: .init(0xF5F5F7))
  public static let card = Color.adaptive(light: .init(0xFFFFFF), dark: .init(0x1D1D1F))
  public static let cardForeground = Color.adaptive(light: .init(0x1D1D1F), dark: .init(0xF5F5F7))
  public static let popover = Color.adaptive(light: .init(0xFFFFFF), dark: .init(0x1D1D1F))
  public static let popoverForeground = Color.adaptive(light: .init(0x1D1D1F), dark: .init(0xF5F5F7))
  public static let primary = Color.adaptive(light: .init(0x0071E3), dark: .init(0x2997FF))
  public static let primaryForeground = Color.adaptive(light: .init(0xFFFFFF), dark: .init(0xFFFFFF))
  public static let secondary = Color.adaptive(light: .init(0x000000, 0.04), dark: .init(0xFFFFFF, 0.1))
  public static let secondaryForeground = Color.adaptive(light: .init(0x1D1D1F), dark: .init(0xF5F5F7))
  public static let muted = Color.adaptive(light: .init(0xF5F5F7), dark: .init(0x161617))
  public static let mutedForeground = Color.adaptive(light: .init(0x6E6E73), dark: .init(0xA1A1A6))
  public static let accent = Color.adaptive(light: .init(0x000000, 0.06), dark: .init(0xFFFFFF, 0.1))
  1. Copy the source and every file it uses:
swift/Charts/AreaChartRange.swift
import Charts
import SwiftUI

private let readings: [(low: Double, high: Double, average: Double)] = [
  (48, 62, 54), (46, 60, 52), (47, 64, 54), (45, 61, 52), (48, 63, 55), (46, 66, 54),
  (56, 78, 64), (58, 82, 66), (64, 88, 74), (66, 90, 76), (64, 92, 74), (66, 89, 75),
  (65, 94, 76), (66, 90, 75), (64, 88, 74), (65, 91, 76), (66, 92, 75), (68, 96, 78),
  (104, 158, 126), (102, 150, 122), (70, 94, 78), (66, 90, 74), (60, 82, 68), (52, 70, 58),
]

private let hours = readings.indices.map { "\($0):00" }

private let chartConfig: ChartConfig = [
  "range": .init("Range", color: Palette.red500),
  "average": .init("Average", color: Palette.red500),
]
swift/Components/Card.swift
import SwiftUI

public struct Card<Content: View>: View {
  public enum Variant: CaseIterable, Sendable {
    case `default`, filled
  }

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

    var spacing: CGFloat {
      switch self {
      case .default: 24
      case .sm: 16
      }
    }
swift/Components/Chart.swift
import Charts
import SwiftUI

public struct ChartConfig: ExpressibleByDictionaryLiteral, Sendable {
  public struct Item: Sendable {
    public var label: String?
    public var color: Color?
    public var icon: Image?

    public init(_ label: String? = nil, color: Color? = nil, icon: Image? = nil) {
      self.label = label
      self.color = color
      self.icon = icon
    }
  }
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/Item.swift
import SwiftUI

public enum ItemVariant: CaseIterable, Sendable {
  case `default`, outline, muted
}

public enum ItemSize: CaseIterable, Sendable {
  case `default`, sm, xs

  var horizontalPadding: CGFloat {
    switch self {
    case .default: 16
    case .sm: 14
    case .xs: 12
    }
  }
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(EsuissColor.border)
      .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
    }
  }
  1. Add the files to your app target.
  1. 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")
  1. 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 background: Color,
    val foreground: Color,
    val card: Color,
    val cardForeground: Color,
    val popover: Color,
    val popoverForeground: Color,
    val primary: Color,
    val primaryForeground: Color,
  1. Copy the source and every file it uses:
kotlin/charts/AreaChartRange.kt
package com.esuiss.ui.charts

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.height
import androidx.compose.foundation.text.BasicText
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import com.esuiss.ui.components.Card
import com.esuiss.ui.components.CardContent
import com.esuiss.ui.components.CardSize
import com.esuiss.ui.components.CardVariant
kotlin/components/Card.kt
package com.esuiss.ui.components

import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.ColumnScope
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.RowScope
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.text.BasicText
import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.runtime.compositionLocalOf
kotlin/components/Chart.kt
package com.esuiss.ui.components

import androidx.compose.animation.core.Animatable
import androidx.compose.animation.core.CubicBezierEasing
import androidx.compose.animation.core.Easing
import androidx.compose.animation.core.LinearEasing
import androidx.compose.animation.core.tween
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.gestures.detectHorizontalDragGestures
import androidx.compose.foundation.gestures.detectTapGestures
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.BoxScope
import androidx.compose.foundation.layout.BoxWithConstraints
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/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.alpha
import androidx.compose.ui.draw.clip
import androidx.compose.ui.draw.drawWithContent
import androidx.compose.ui.geometry.Offset
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/Icon.kt
package com.esuiss.ui.components

import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.size
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.ColorFilter
import androidx.compose.ui.graphics.takeOrElse
import androidx.compose.ui.graphics.vector.ImageVector
import androidx.compose.ui.unit.Dp
import com.esuiss.ui.theme.EsuissTheme

@Composable
fun Icon(
    imageVector: ImageVector,
  1. Update the com.esuiss.ui package names to match your project.

Usage

import { AreaChartRange } from "@/components/charts/area-chart-range"
<AreaChartRange />

Replace the readings array with [low, high, average] tuples for each hour; the header range and the chart data are derived from it. Adjust the YAxis domain and ticks to fit your values. The component takes no props.

NextArea Chart SparklinePreviousArea Chart Linear

On this page

  1. 01Installation
    • CLI
    • Manual
  2. 02Usage
  3. 03Notes
  4. 04Installation
    • Manual
  5. 05Usage