getAllPreviewSizes method

Future getAllPreviewSizes()

获取全部预览大小

Implementation

Future getAllPreviewSizes() async {
  var result = await _cameraChannel?.invokeMethod('getAllPreviewSizes');
  List<PreviewSize> list = [];
  json.decode(result)?.forEach((element) {
    list.add(PreviewSize.fromJson(element));
  });
  _previewSizes = list;
}