RadarEffect class

A shader-based radar / sonar scanning effect.

Renders expanding, fading concentric rings over a radial gradient background with a center pulse and edge vignette — all on the GPU.

{@tool snippet}

// As a GKWidget effect
GKWidget(
  effect: RadarEffect(config: RadarEffectConfig.green),
  trigger: GKTrigger.auto,
  child: Icon(Icons.wifi, color: Colors.white),
)

// With custom colors
GKWidget(
  effect: RadarEffect(
    config: RadarEffectConfig(
      ringColor: Colors.pinkAccent,
      bgColor1: Color(0xFF6A1B9A),
      bgColor2: Color(0xFF1A0030),
      ringCount: 5,
      speed: 1.5,
    ),
  ),
  trigger: GKTrigger.auto,
)

{@end-tool}

Inheritance

• Object
• GKEffect
• RadarEffect

Constructors

RadarEffect({RadarEffectConfig config = RadarEffectConfig.green})

Creates a RadarEffect.

const

Properties

config → RadarEffectConfig

Visual configuration for the radar.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

build(BuildContext context, GKController controller, {Widget? child}) → Widget

Builds the widget tree for this effect.

override

dispose() → void

Override to release resources held by this effect.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited