flutter_multiple_loaders

Flutter Multiple Loaders

https://pub.dev/packages/flutter_multiple_loaders

A Flutter package providing a collection of customizable loading animations for your Flutter applications.

Define. Get. Set. Done.

🌐 Live Demo

Experience all the loaders in action: Flutter Multiple Loaders Demo

Requirements

• Flutter SDK >= 1.17.0
• Dart SDK >= 3.7.2

Features

This package includes multiple loading animation styles with customizable properties:

Standard Loaders

• Spinner Loader: A classic spinning circular loader
• Pulse Loader: A circle that pulses in and out
• Bounce Loader: Multiple dots that bounce up and down
• Wave Loader: Multiple bars that animate in a wave-like pattern
• Circle Loader: A circular progress indicator with customizable properties
• Dots Loader: Multiple dots that fade in and out in sequence
• Rotating Square Loader: A square that rotates on its center axis
• Flipping Card Loader: A card that flips in 3D
• Glowing Loader: A circle with pulsing glow effects and gradient colors
• Typing Loader: A typing indicator with animated dots, commonly used in chat applications
• Blinking Loader: A shape (circle, square, triangle, or star) that fades in and out
• Ripple Loader: Concentric circles that expand outward like ripples on water
• Heartbeat Loader: A realistic anatomical heart animation with authentic cardiac rhythm patterns
• Hourglass Loader (new in 1.1.0): A smooth hourglass with Bézier curves and animated sand flow
• Clock Loader (new in 1.1.0): An analog clock face with rotating hour and minute hands

Innovative Loaders

• DNA Helix Loader: An animated double helix that rotates in 3D space with connecting "rungs" between the strands
• Morphing Shape Loader: A shape that smoothly transitions between different geometric forms
• Galaxy Spiral Loader: A spiral galaxy with stars rotating around a glowing core
• Particle Vortex Loader: Mesmerizing particles flowing in a vortex pattern with customizable flow speed and colors
• Fractal Tree Loader: A beautiful animated fractal tree that grows and branches organically
• Liquid Blob Loader: A morphing liquid-like blob with fluid motion and realistic highlights
• Page Turning Loader: A book with smoothly turning pages that simulates a realistic reading animation
• Heartbeat Loader: A realistic anatomical heart animation with authentic cardiac rhythm patterns
• Neon Pulse Loader: Futuristic cyberpunk-style concentric neon rings with glow effects

🛠️ Developer Utilities (new in 1.1.0)

• MultipleLoaders.showOverlay — One-line modal loading barrier that blocks user interaction during async tasks
• LoaderFutureBuilder<T> — Drop-in FutureBuilder wrapper that auto-shows a loader while waiting

All loaders feature:

• Customizable sizes (extra small to extra large)
• Custom colors (primary, secondary, tertiary, and quaternary)
• Adjustable animation speed
• Optional background colors
• Animation control (start, stop, reset)

Screenshots

Standard Loaders

Loader	Preview	Loader	Preview
Spinner Loader		Pulse Loader
Bounce Loader		Wave Loader
Circle Loader		Dots Loader
Rotating Square Loader		Glowing Loader
Typing Loader		Ripple Loader
HeartBeat Loader		Hourglass Loader	(screenshot coming soon)
Clock Loader	(screenshot coming soon)

Innovative Loaders Gallery

Loader	Preview	Loader	Preview
DNA Helix Loader		Morphing Shape Loader
Galaxy Spiral Loader		Particle Vortex Loader
Fractal Tree Loader		Liquid Blob Loader
Flipping Card Loader

Getting started

Add the dependency to your pubspec.yaml:

dependencies:
  flutter_multiple_loaders: ^1.1.0

Then run:

flutter pub get

Usage

Import the package:

import 'package:flutter_multiple_loaders/flutter_multiple_loaders.dart';

Basic Usage

Use any of the loaders with default options:

// Simple spinner animation
SpinnerLoader();

// Pulse animation
PulseLoader();

// Bounce animation
BounceLoader();

// Wave animation
WaveLoader();

// Circle animation
CircleLoader();

// Blinking animation with different shapes
BlinkingLoader();  // default is circle

// Book animation
PageTurningLoader(
  pageCount: 20,
  options: LoaderOptions(
    color: Colors.indigo,
    secondaryColor: Colors.indigoAccent,
    tertiaryColor: Colors.white,
    durationMs: 3500,
  ),
);

// Heartbeat animation
HeartbeatLoader(
  pulseIntensity: 0.4,
  options: LoaderOptions(
    color: Colors.red,
    size: LoaderSize.large,
    durationMs: 2000,
  ),
);

// Hourglass animation (new in 1.1.0)
HourglassLoader(
  options: LoaderOptions(
    color: Colors.amber,
    secondaryColor: Colors.amber.withOpacity(0.35),
    size: LoaderSize.large,
    strokeWidth: 3.0,
    durationMs: 2400,
  ),
);

// Clock animation (new in 1.1.0)
ClockLoader(
  options: LoaderOptions(
    color: Colors.deepPurple,
    secondaryColor: Colors.deepPurpleAccent,
    size: LoaderSize.large,
    strokeWidth: 3.0,
    durationMs: 3000,
  ),
);

🛠️ Developer Utilities (new in 1.1.0)

Loading Overlay Dialog

Display a full-screen loading barrier that blocks user interaction during async tasks:

// Show the overlay
MultipleLoaders.showOverlay(
  context,
  loader: const SpinnerLoader(
    options: LoaderOptions(
      color: Colors.white,
      size: LoaderSize.large,
    ),
  ),
);

// Perform your async work...
await myLongRunningTask();

// Hide the overlay
MultipleLoaders.hideOverlay(context);

LoaderFutureBuilder

A drop-in replacement for FutureBuilder that automatically shows a loader while the future is pending:

LoaderFutureBuilder<String>(
  future: myNetworkRequest(),
  loader: const CircleLoader(
    options: LoaderOptions(
      color: Colors.teal,
      size: LoaderSize.large,
      strokeWidth: 4.0,
    ),
  ),
  builder: (context, data) {
    // Only called when the future completes successfully!
    return Text('Loaded: $data');
  },
)

Customizing Loaders

All loaders accept custom options through the LoaderOptions class:

SpinnerLoader(
  options: LoaderOptions(
    color: Colors.purple,
    size: LoaderSize.large,
    durationMs: 1000,
    loop: true,
  ),
);

// Multi-colored wave loader
WaveLoader(
  barCount: 5,
  options: LoaderOptions(
    color: Colors.blue,
    secondaryColor: Colors.green,
    tertiaryColor: Colors.orange,
    size: LoaderSize.medium,
  ),
);

Controlling Animation Programmatically

Use the LoaderController to control the animation:

class _MyWidgetState extends State<MyWidget> {
  final LoaderController _controller = LoaderController();

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        SpinnerLoader(controller: _controller),

        ElevatedButton(
          onPressed: () => _controller.start(),
          child: Text('Start'),
        ),

        ElevatedButton(
          onPressed: () => _controller.stop(),
          child: Text('Stop'),
        ),

        ElevatedButton(
          onPressed: () => _controller.reset(),
          child: Text('Reset'),
        ),
      ],
    );
  }
}

Interactive Example

The package includes a complete example app that demonstrates all loaders with interactive controls for customization. The example app allows you to:

• Switch between different loader types via category tabs (Standard / Innovative)
• Change sizes, colors, and stroke widths via the control panel
• Control animation duration
• Start, stop, and reset animations
• Try interactive Developer Utilities demos (Overlay & FutureBuilder)
• Copy ready-to-use code snippets for every loader

Check the example folder for more detailed usage examples.

Additional information

Contributing

Contributions are welcome! Feel free to open an issue or submit a pull request.

License

This package is licensed under the MIT License - see the LICENSE file for details.