Particle

JeasonWong/Particle is an Android library that provides a particle system for creating dynamic and visually appealing animations. It allows developers to easily add particle effects to their Android applications, enhancing the user interface with customizable and interactive visual elements.

Pros

• Easy to integrate and use in Android projects
• Highly customizable particle effects
• Smooth and efficient animations
• Lightweight library with minimal impact on app performance

Cons

• Limited documentation and examples
• May require some understanding of particle systems for advanced customization
• Not actively maintained (last update was several years ago)

Code Examples

1. Creating a simple particle system:

ParticleSystem ps = new ParticleSystem(this, 100, R.drawable.star_particle, 3000);
ps.setScaleRange(0.7f, 1.3f);
ps.setSpeedRange(0.1f, 0.25f);
ps.setRotationSpeedRange(90, 180);
ps.setFadeOut(200, new AccelerateInterpolator());
ps.oneShot(myButton, 100);

This code creates a particle system with 100 star-shaped particles that will animate for 3 seconds when triggered.

2. Creating a continuous particle emission:

ParticleSystem ps = new ParticleSystem(this, 50, R.drawable.bubble_particle, 5000);
ps.setScaleRange(0.3f, 0.8f);
ps.setSpeedRange(0.05f, 0.1f);
ps.setAcceleration(0.0001f, 90);
ps.setRotationSpeedRange(90, 180);
ps.emit(myEmitterView, 8);

This code sets up a continuous emission of 50 bubble particles from a specified view, with 8 particles emitted per second.

3. Adding multiple particle animations:

ParticleSystem ps = new ParticleSystem(this, 100, R.drawable.confetti_particle, 5000);
ps.setScaleRange(0.7f, 1.3f);
ps.setSpeedRange(0.1f, 0.25f);
ps.setRotationSpeedRange(90, 180);
ps.setFadeOut(200, new AccelerateInterpolator());
ps.addModifier(new AlphaModifier(255, 0, 2000, 5000));
ps.addModifier(new ScaleModifier(0.5f, 2f, 0, 1000));
ps.oneShot(myButton, 100);

This example demonstrates how to add multiple modifiers to create more complex particle animations, including alpha and scale changes over time.

Getting Started

To use the Particle library in your Android project:

1. Add the following to your app's build.gradle file:

dependencies {
    implementation 'com.github.JeasonWong:Particle:1.1.0'
}

2. Initialize and use a ParticleSystem in your activity or fragment:

ParticleSystem ps = new ParticleSystem(this, 100, R.drawable.star_particle, 3000);
ps.setScaleRange(0.7f, 1.3f);
ps.setSpeedRange(0.1f, 0.25f);
ps.oneShot(myButton, 100);

This will create a simple particle effect that triggers when myButton is tapped.