ios - ZXingObjc - Cannot read Code128 when the barcode area is short -

i'm using zxingobjc read barcode images in swift app. works fine in situations. when height of code128 short, "a barcode not found in image".

i try add kbarcodeformatcode128 possibleformat of zxdecodehints no luck.

is limits of zxingobjc, or did miss else? appreciated.

here code:

import foundation import zxingobjc  let zxingreader = zxingreader.shared  class zxingreader {     static let shared = zxingreader()      lazy var decodehints: zxdecodehints = {         let hints = zxdecodehints()         return hints     }()      func readcodefromimage(image: uiimage) throws -> zxresult {         let source = zxcgimageluminancesource(cgimage: image.cgimage!)          let binazer = zxhybridbinarizer(source: source)         let bitmap = zxbinarybitmap(binarizer: binazer)         let reader = zxmultiformatreader()          {             let result = try reader.decode(bitmap, hints: decodehints)             return result         } catch let error nserror {             throw error         }     }      func readcodefromimage(image: uiimage, completion: (zxresult) -> void, failure: ((nserror) -> void)?) {         {             let result = try readcodefromimage(image)             completion(result)         } catch let error nserror {             guard let failure = failure else { return }             failure(error)         }     } } 

here images use: zxingobjc works fine on left image, return nil on right image.