fromDynamic static method

JsonAnimatedAlignBuilder? fromDynamic(
  1. dynamic map, {
  2. JsonWidgetRegistry? registry,
})

Builds the builder from a Map-like dynamic structure. This expects the JSON format to be of the following structure:

{
  "alignment": "<AlignmentGeometry>",
  "curve": "<Curve>",
  "duration": "<int; millis>",
  "heightFactor": "<double>",
  "onEnd": "<VoidCallback>",
  "widthFactor": "<double>"
}

As a note, the Curve and VoidCallback cannot be decoded via JSON. Instead, the only way to bind those values to the builder is to use a function or a variable reference via the JsonWidgetRegistry.

Implementation

static JsonAnimatedAlignBuilder? fromDynamic(
  dynamic map, {
  JsonWidgetRegistry? registry,
}) {
  JsonAnimatedAlignBuilder? result;

  if (map != null) {
    result = JsonAnimatedAlignBuilder(
      alignment: ThemeDecoder.decodeAlignment(
        map['alignment'],
        validate: false,
      )!,
      curve: map['curve'] ?? Curves.linear,
      duration: JsonClass.maybeParseDurationFromMillis(
        map['duration'],
      )!,
      heightFactor: JsonClass.maybeParseDouble(map['heightFactor']),
      onEnd: map['onEnd'],
      widthFactor: JsonClass.maybeParseDouble(map['widthFactor']),
    );
  }

  return result;
}