fromDynamic static method
Builds the builder from a Map-like dynamic structure. This expects the JSON format to be of the following structure:
{
"builder": <ValueWidgetBuilder>,
"curve": <Curve>,
"duration": <int; millis>,
"onEnd": <VoidCallback>,
"tween": <Tween>
}
As a note, the ValueWidgetBuilder, Curve, 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. The Tween can only be bound through a function reference.
Implementation
static JsonTweenAnimationBuilder? fromDynamic(
dynamic map, {
JsonWidgetRegistry? registry,
}) {
JsonTweenAnimationBuilder? result;
if (map != null) {
result = JsonTweenAnimationBuilder(
builder: map['builder'],
curve: map['curve'] ?? Curves.linear,
duration: JsonClass.parseDurationFromMillis(
map['duration'],
)!,
onEnd: map['onEnd'],
tween: map['tween'],
);
}
return result;
}