DevicePreset.fromJson constructor

DevicePreset.fromJson(Map<String, Object?> json)

Decodes a preset from the JSON produced by toJson.

Unknown keys are ignored; missing required keys or malformed values throw a FormatException.

Implementation

factory DevicePreset.fromJson(Map<String, Object?> json) {
  final TargetPlatform platform = decodeEnum(
    json['platform'],
    TargetPlatform.values,
    'platform',
  );
  // Bars that do not name their platform get the device's: paint-time
  // behavior (Android tints bar backgrounds, iOS never does) must follow
  // the simulated device, not the app's host. Specs in `device_specs/`
  // rely on this — they never repeat the platform inside `systemUi`.
  SystemUiSimulation? systemUi = json['systemUi'] == null
      ? null
      : SystemUiSimulation.fromJson(decodeMap(json['systemUi'], 'systemUi'));
  if (systemUi != null && systemUi.platform == null) {
    systemUi = SystemUiSimulation(
      statusBar: systemUi.statusBar,
      navigationBar: systemUi.navigationBar,
      platform: platform,
    );
  }
  return DevicePreset(
    id: decodeString(json['id'], 'id'),
    name: decodeString(json['name'], 'name'),
    brand: json['brand'] == null
        ? null
        : decodeString(json['brand'], 'brand'),
    year: json['year'] == null ? null : decodeInt(json['year'], 'year'),
    platform: platform,
    frame: json['frame'] == null
        ? null
        : DeviceFrame.fromJson(decodeMap(json['frame'], 'frame')),
    systemUi: systemUi,
    portraitSize: decodeSize(json['portraitSize'], 'portraitSize'),
    devicePixelRatio: decodeDouble(
      json['devicePixelRatio'],
      'devicePixelRatio',
    ),
    portraitPadding: json['portraitPadding'] == null
        ? EdgeInsets.zero
        : decodeEdgeInsets(json['portraitPadding'], 'portraitPadding'),
    portraitViewPadding: json['portraitViewPadding'] == null
        ? null
        : decodeEdgeInsets(
            json['portraitViewPadding'],
            'portraitViewPadding',
          ),
    landscapePadding: json['landscapePadding'] == null
        ? null
        : decodeEdgeInsets(json['landscapePadding'], 'landscapePadding'),
    landscapeViewPadding: json['landscapeViewPadding'] == null
        ? null
        : decodeEdgeInsets(
            json['landscapeViewPadding'],
            'landscapeViewPadding',
          ),
    systemGestureInsets: json['systemGestureInsets'] == null
        ? EdgeInsets.zero
        : decodeEdgeInsets(
            json['systemGestureInsets'],
            'systemGestureInsets',
          ),
    portraitKeyboardHeight: json['portraitKeyboardHeight'] == null
        ? null
        : decodeDouble(
            json['portraitKeyboardHeight'],
            'portraitKeyboardHeight',
          ),
    landscapeKeyboardHeight: json['landscapeKeyboardHeight'] == null
        ? null
        : decodeDouble(
            json['landscapeKeyboardHeight'],
            'landscapeKeyboardHeight',
          ),
    displayFeatures: json['displayFeatures'] == null
        ? const <SimulatedDisplayFeature>[]
        : List<SimulatedDisplayFeature>.unmodifiable(
            decodeList(json['displayFeatures'], 'displayFeatures').map(
              (Object? e) => SimulatedDisplayFeature.fromJson(
                decodeMap(e, 'displayFeatures[]'),
              ),
            ),
          ),
    kind: json['kind'] == null
        ? DeviceKind.phone
        : decodeEnum(json['kind'], DeviceKind.values, 'kind'),
  );
}