BMFHeatMap constructor Null safety

BMFHeatMap(
  1. {required List<BMFHeatMapNode> data,
  2. int? radius,
  3. double? opacity = 0.6,
  4. BMFGradient? gradient}
)

BMFHeatMap构造方法

Implementation

BMFHeatMap({
  required this.data,
  this.radius,
  this.opacity: 0.6,
  this.gradient,
}) : assert(data.length > 0);