A haptic feedback SDK for Flutter. Pulsar gives you 150+ ready-to-play presets, a pattern composer for fully custom sequences, and a realtime composer for gesture-driven feedback — all behind a single Dart-friendly API that bridges to native CoreHaptics on iOS and the platform vibrator on Android.

Features

• 150+ built-in presets – Expressive patterns (hammer, dogBark, heartbeat, fanfare…) plus system feedback (impact, notification, selection)
• Pattern Composer – Build custom haptics from discrete events and continuous amplitude/frequency envelopes
• Realtime Composer – Live amplitude and frequency control for sliders, gestures, and continuously evolving feedback
• Adaptive presets – Define iOS and Android variants in one object and let Pulsar pick the right one per platform
• Audio simulation – Optional companion audio so haptics feel right even on devices with weaker vibration motors
• Cross-platform – The same Dart API runs on iOS 13+ and Android API 24+

Quick start

Note: This package is published as pulsar_haptics, not pulsar. The shorter pulsar name on pub.dev was reserved by an unrelated author before this project was published and is not maintained by Software Mansion. Always depend on pulsar_haptics.

Latest available version: 0.0.3

dependencies:
  pulsar_haptics: ^0.0.3

On Android, declare the vibration permission in your AndroidManifest.xml:

<uses-permission android:name="android.permission.VIBRATE" />

Preset example

import 'package:pulsar_haptics/pulsar.dart';

final pulsar = Pulsar();

// Built-in expressive preset
await pulsar.getPresets().hammer();

// System feedback
await pulsar.getPresets().systemImpactMedium();
await pulsar.getPresets().systemNotificationSuccess();

Pattern composer example

Compose a "double tap → swell" haptic that mixes discrete pulses with a smooth continuous envelope:

import 'package:pulsar_haptics/pulsar.dart';

final pulsar = Pulsar();

final composer = pulsar.getPatternComposer();

await composer.playPattern(
  PatternData(
    discretePattern: const [
      DiscretePoint(time: 0,  amplitude: 1.0, frequency: 0.6),
      DiscretePoint(time: 90, amplitude: 0.8, frequency: 0.6),
    ],
    continuousPattern: const ContinuousPattern(
      amplitude: [
        ValuePoint(time: 200, value: 0.0),
        ValuePoint(time: 350, value: 0.9),
        ValuePoint(time: 600, value: 0.0),
      ],
      frequency: [
        ValuePoint(time: 200, value: 0.3),
        ValuePoint(time: 600, value: 0.9),
      ],
    ),
  ),
);

Realtime composer example

Drive haptic intensity from a Slider for tactile UI feedback:

import 'package:flutter/material.dart';
import 'package:pulsar_haptics/pulsar.dart';

final pulsar = Pulsar();
final realtime = pulsar.getRealtimeComposer();

Slider(
  value: intensity,
  onChanged: (value) {
    setState(() => intensity = value);
    realtime.set(value, 0.5); // amplitude, frequency
  },
  onChangeEnd: (_) => realtime.stop(),
);

Adaptive preset example

Pick the best implementation per platform from one declaration:

final adaptive = AdaptivePreset(
  ios: AdaptivePresetCallback(() => pulsar.presets.systemNotificationSuccess()),
  android: AdaptivePresetPattern(
    PatternData(
      discretePattern: const [
        DiscretePoint(time: 0,   amplitude: 1.0, frequency: 0.5),
        DiscretePoint(time: 150, amplitude: 0.6, frequency: 0.4),
      ],
      continuousPattern: const ContinuousPattern(amplitude: [], frequency: []),
    ),
  ),
);

final haptics = await pulsar.createAdaptiveHaptics(adaptive);
await haptics.play();

Documentation

Full API reference and guides are available at the documentation site.

• SDK Overview – Core concepts: types of haptics, preloading, and caching
• Flutter SDK – Dart API reference

Try the Pulsar App

Download the Pulsar companion app to feel haptic presets directly on your device:

• App Store
• Google Play

Community Discord

Join the Software Mansion Community Discord to chat about haptics or other Software Mansion libraries.

License

Pulsar library is licensed under The MIT License.

Pulsar is created by Software Mansion

Since 2012 Software Mansion is a software agency with experience in building web and mobile apps. We are Core React Native Contributors and experts in dealing with all kinds of mobile and cross-platform issues. We can help you build your next dream product – Hire us.