decodeMaterialStatePropertyDouble static method

MaterialStateProperty<double?>? decodeMaterialStatePropertyDouble(dynamic value, { bool validate = true, })

Decodes a value into a double based MaterialStateProperty. This accepts a double or a String which will be resolved for all states.

Alternatively, if the value is a Map then this expects the following format:

{
  "disabled": <double>,
  "dragged": <double>,
  "empty": <double>,
  "error": <double>,
  "focused": <double>,
  "hovered": <double>,
  "pressed": <double>,
  "selected": <double>
}

Implementation

static MaterialStateProperty<double?>? decodeMaterialStatePropertyDouble(
  dynamic value, {
  bool validate = true,
}) {
  MaterialStateProperty<double?>? result;

  if (value is MaterialStateProperty<double?>) {
    result = value;
  } else if (value != null) {
    if (value is int) {
      result = MaterialStateProperty.all(value.toDouble());
    } else if (value is double) {
      result = MaterialStateProperty.all(value);
    } else if (value is String) {
      result = MaterialStateProperty.all(JsonClass.parseDouble(value));
    } else if (value is Map) {
      assert(SchemaValidator.validate(
        schemaId: '$_baseSchemaUrl/material_state_property_double',
        value: value,
        validate: validate,
      ));

      result = MaterialStateProperty.resolveWith((states) {
        double? result;
        if (states.contains(MaterialState.disabled)) {
          result = JsonClass.parseDouble(value['disabled']);
        } else if (states.contains(MaterialState.dragged)) {
          result = JsonClass.parseDouble(value['dragged']);
        } else if (states.contains(MaterialState.error)) {
          result = JsonClass.parseDouble(value['error']);
        } else if (states.contains(MaterialState.focused)) {
          result = JsonClass.parseDouble(value['focused']);
        } else if (states.contains(MaterialState.hovered)) {
          result = JsonClass.parseDouble(value['hovered']);
        } else if (states.contains(MaterialState.pressed)) {
          result = JsonClass.parseDouble(value['pressed']);
        } else if (states.contains(MaterialState.selected)) {
          result = JsonClass.parseDouble(value['selected']);
        } else {
          result = JsonClass.parseDouble(value['empty']);
        }

        return result;
      });
    } else {
      result = MaterialStateProperty.all(value);
    }
  }
  return result;
}