setZoomRatio method

Future<bool> setZoomRatio(
  1. double ratio
)

相机缩放 Camera zoom

Implementation

Future<bool> setZoomRatio(double ratio) async {
  if (!_supportPlatform || !hasPreview) return false;
  assert(ratio >= 1, 'ratio must be greater than or equal to 1');
  final bool? state =
      await channel.invokeMethod<bool?>('setZoomRatio', ratio);
  return state ?? false;
}