recognizeImageBytes method

@override Future<List<OcrResult>> recognizeImageBytes(Uint8List imageBytes)

从图片字节数据识别文字。

Implementation

@override
Future<List<OcrResult>> recognizeImageBytes(Uint8List imageBytes) async {
  _log('recognizeImageBytes: ${imageBytes.length} bytes');

  try {
    final result =
        await _channel.invokeMethod<List<dynamic>>('recognizeImageBytes', {
      'imageBytes': imageBytes,
    });
    _log('recognizeImageBytes: native returned ${result?.length ?? 0} items');
    if (result == null) return [];
    return _parseResults(result);
  } on FormatException catch (e) {
    _log('recognizeImageBytes: FormatException! offset=${e.offset} message=${e.message}');
    _log('recognizeImageBytes: This usually means native code returned invalid UTF-8 bytes.');
    rethrow;
  } on PlatformException catch (e) {
    _log('recognizeImageBytes: PlatformException code=${e.code} message=${e.message}');
    rethrow;
  } catch (e, st) {
    _log('recognizeImageBytes: unexpected error', error: e, stackTrace: st);
    rethrow;
  }
}