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Base Progress animation preview

Base Progress animation preview

This preview uses fictional demo content. See the props below for the customization options available in this component.

npx nativeanimation add base-progress

Base Progress

React Native Progress Component

A determinate or indeterminate progress bar with animated updates and configurable value, height, and theme.

Native Animation Base · Free · MIT

Read and download source

Add to your project

Copy the component and its assets into your app with the Native Animation CLI, or paste the agent prompt into Claude Code, Codex or Cursor once the MCP server is connected.

About this component

Related guides

React Native Progress Bar with Reanimated and Skia

A determinate or indeterminate progress bar with animated updates and configurable value, height, and theme.

How it works

The track uses primary at 20% opacity and a full corner radius.
Values clamp to 0–100 and animate with the 300/35 progress spring, mass 1.
A small relative energy threshold lets the bar settle precisely in Reanimated 4.
Indeterminate mode moves a 40% segment across the measured track in a 1.4 second in-out loop.

Install

npx nativeanimation add base-progress

The CLI also copies base-theme. Dependencies, if you copy by hand:

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

Usage

import { BaseProgress } from './base-progress';

<BaseProgress value={uploadPercent} accessibilityLabel="File upload" />

<BaseProgress value={75} height={6} accessibilityLabel="Workspace setup" />
<BaseProgress indeterminate accessibilityLabel="Preparing export" />

The component measures its own width, so it works within cards, forms, and narrow containers. It applies no safe-area padding. Supply a label describing the task.

Wrap your app in BaseThemeProvider (from base-theme) to choose light/dark and an accent; without it, pieces use the light neutral theme. The theme prop overrides the provider. Load the font families declared in your theme once in the host app.

Props

Prop	Type	Default	Description
`value`	`number`	0	Progress from 0 to 100, clamped to that range.
`indeterminate`	`boolean`	false	Shows a looping segment instead of a percentage.
`height`	`number`	8	Track height in pt.
`accessibilityLabel`	`string`	—	Accessible description of the task.
`theme`	`BaseTheme`	provider	Overrides the shared family theme.
`style`	`StyleProp<ViewStyle>`	—	Container style.
`testID`	`string`	—	Stable test identifier.

Compatibility

Expo SDK 58 · React Native 0.88 · Reanimated 4.7 · react-native-worklets 0.13. Runs on iOS, Android and web, in Expo Go and development builds. Part of Native Animation Base, a free family that shares one theme.

Accessibility

Exposes a progressbar role with min, max, and current values. Indeterminate mode exposes a busy state instead of a fabricated percentage. Reduce Motion updates determinate progress immediately and holds the indeterminate segment still.

Part of a shared foundation

Use it in a screen

Compose Base Progress with other Base components and a single shared theme. Ask your agent to read each API, then connect real navigation, state, and callbacks.

Build a habit tracker Build with an agent CLI and manual installation Theme and dark mode Accessibility checklist Native Animation Base UI library

Go further.

Base covers the everyday. Choose a more expressive interaction when your app calls for it.

Another way to solve this task · $9

Streaming Skeleton Shell ↗

A streaming app shell with shared loading shimmer and card-to-hero transitions, with configurable titles, labels, colors, and fonts.

Another way to solve this task · $9

Social Feed Skeleton ↗

A pull-to-refresh feed with shared shimmer and staggered post reveals, with configurable posts, labels, colors, and font.

Source code

Loading public source…

Dependencies

Package	Version
react-native-reanimated	4.7.1
react-native-worklets	0.13.0

Compatibility

SDK	Status	Revision	Last revision	Platforms	Dependencies
Expo SDK 58	Tested	1	10/27/2026	iOS, Web, Android	react-native-reanimated 4.7.1, react-native-worklets 0.13.0
Expo SDK 57	Tested	1	10/27/2026	iOS, Web, Android	react-native-reanimated 4.5.1, react-native-worklets 0.10.1

Scroll the table horizontally to review every column ↔

More animations

BaseProgress.tsx

import Animated, {
  ReduceMotion,
  cancelAnimation,
  Easing,
  useAnimatedStyle,
  useSharedValue,
  withRepeat,
  withSpring,
  withTiming,
} from 'react-native-reanimated';
import {
  useBaseReducedMotion,
  alpha,
  useBaseTheme,
  type BaseTheme,
} from '../base-theme';
import React, { useEffect } from 'react';
import { View, type StyleProp, type ViewStyle } from 'react-native';

// Reanimated 4 uses relative energy rather than restDisplacementThreshold.
const PROGRESS_SPRING = {
  stiffness: 300,
  damping: 35,
  mass: 1,
  energyThreshold: 1e-9,
  overshootClamping: true,
};
export type BaseProgressProps = {
  /** Current controlled value. */
  value?: number;
  /** Shows a looping segment instead of a known percentage. */
  indeterminate?: boolean;
  /** Track height in points. */
  height?: number;
  /** Accessible name for this control or task. */
  accessibilityLabel?: string;
  /** Style applied to the container. */
  style?: StyleProp<ViewStyle>;
  /** Overrides the nearest BaseThemeProvider. */
  theme?: BaseTheme;
  /** Stable identifier for the root or trigger. */
  testID?: string;
};
export function BaseProgress({
  value = 0,
  indeterminate = false,
  height = 8,
  accessibilityLabel,
  style,
  theme: override,
  testID,
}: BaseProgressProps) {
  const theme = useBaseTheme(override);
  const reduced = useBaseReducedMotion();
  const amount = Number.isFinite(value) ? Math.max(0, Math.min(100, value)) : 0;
  const fill = useSharedValue(amount);
  const travel = useSharedValue(-0.4);
  const width = useSharedValue(0);
  useEffect(() => {
    fill.set(
      reduced
        ? amount
        : withSpring(amount, {
            ...PROGRESS_SPRING,
            reduceMotion: ReduceMotion.Never,
          }),
    );
    return () => cancelAnimation(fill);
  }, [amount, reduced, fill]);
  useEffect(() => {
    travel.set(reduced ? 0.3 : -0.4);
    if (indeterminate && !reduced)
      travel.set(
        withRepeat(
          withTiming(1, {
            reduceMotion: ReduceMotion.Never,
            duration: 1400,
            easing: Easing.inOut(Easing.ease),
          }),
          -1,
          undefined,
          undefined,
          ReduceMotion.Never,
        ),
      );
    return () => cancelAnimation(travel);
  }, [indeterminate, reduced, travel]);
  const animated = useAnimatedStyle(() => ({
    width: indeterminate ? width.get() * 0.4 : (width.get() * fill.get()) / 100,
    transform: [{ translateX: indeterminate ? travel.get() * width.get() : 0 }],
  }));
  return (
    <View
      testID={testID}
      accessible
      accessibilityRole="progressbar"
      accessibilityLabel={accessibilityLabel}
      accessibilityState={{ busy: indeterminate }}
      aria-busy={indeterminate}
      aria-valuemin={indeterminate ? undefined : 0}
      aria-valuemax={indeterminate ? undefined : 100}
      aria-valuenow={indeterminate ? undefined : amount}
      accessibilityValue={
        indeterminate
          ? { text: 'In progress' }
          : { min: 0, max: 100, now: amount }
      }
      onLayout={(event) => width.set(event.nativeEvent.layout.width)}
      style={[
        {
          height,
          overflow: 'hidden',
          borderRadius: theme.radius.full,
          backgroundColor: alpha(theme.colors.primary, 0.2),
        },
        style,
      ]}
    >
      <Animated.View
        style={[
          {
            height: '100%',
            borderRadius: theme.radius.full,
            backgroundColor: theme.colors.primary,
          },
          animated,
        ]}
      />
    </View>
  );
}
export default BaseProgress;

LICENSE

MIT License

Copyright (c) 2026 Native Animation

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

nativeanimation.manifest.json

{
  "schemaVersion": 1,
  "id": "base-progress",
  "family": "base",
  "license": "MIT",
  "kind": "component",
  "registryDependencies": [
    "base-theme"
  ],
  "dependencies": {
    "react-native-reanimated": "4.7.1",
    "react-native-worklets": "0.13.0"
  }
}