ShaderConfigCallback typedef

ShaderConfigCallback = void Function(FragmentShader shader, {required double animation, required Color color, required Offset position, required Size referenceBoxSize, required double targetRadius, required TextDirection textDirection})

A callback used by the ShaderInkFeature to configure the fragment shader on each frame of the inkwell animation.

animation represents the animation progress, starting at 0 and ending at 1 when the animation is complete.

See also:

• ShaderInkFeature for more information on the available configuration.

Implementation

typedef ShaderConfigCallback = void Function(
  ui.FragmentShader shader, {
  required double animation,
  required Size referenceBoxSize,
  required Color color,
  required Offset position,
  required TextDirection textDirection,
  required double targetRadius,
});