ios - Swift 3/4 - Camera for iOS10 and older -

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i'm trying implement camera in app. seems work on ios 11 not on previous version ...

xcode tells me part (the function photooutput()) not ios 10 , older version.

extension uploadviewcontroller: avcapturephotocapturedelegate {      @available(ios 11.0, *)     func photooutput(_ output: avcapturephotooutput, didfinishprocessingphoto photo: avcapturephoto, error: error?) {         if let imagedata = photo.filedatarepresentation() {             image = uiimage(data: imagedata)              let photosecondvc = self.storyboard?.instantiateviewcontroller(withidentifier: "uploadsecondvc") as! uploadsecondviewcontroller             photosecondvc.imagedata = image!             self.navigationcontroller?.pushviewcontroller(photosecondvc, animated: false)             self.dismiss(animated: true, completion: nil)         }    }  }

and action taking picture:

@ibaction func takephotoaction(_ sender: any) {     let settings = avcapturephotosettings()     photooutput?.capturephoto(with: settings, delegate: self) }

i don't know how translate function previous versions of ios ...

i found one:

func photooutput(_ captureoutput: avcapturephotooutput, didfinishprocessingphoto photosamplebuffer: cmsamplebuffer?, previewphoto previewphotosamplebuffer: cmsamplebuffer?, resolvedsettings: avcaptureresolvedphotosettings, bracketsettings: avcapturebracketedstillimagesettings?, error: error?)

but there a lot of parameters , it's not working well, i'm not sure it's 1 :/

could me please ?

what tried:

@ibaction func takephotoaction(_ sender: any) {   let settings = avcapturephotosettings()   let previewpixeltype = settings.availablepreviewphotopixelformattypes.first!   let previewformat = [kcvpixelbufferpixelformattypekey string: previewpixeltype,                        kcvpixelbufferwidthkey string: 160,                        kcvpixelbufferheightkey string: 160]   settings.previewphotoformat = previewformat   photooutput?.capturephoto(with: settings, delegate: self)    }  func photooutput(_ captureoutput: avcapturephotooutput, didfinishprocessingphoto photosamplebuffer: cmsamplebuffer?, previewphoto previewphotosamplebuffer: cmsamplebuffer?, resolvedsettings: avcaptureresolvedphotosettings, bracketsettings: avcapturebracketedstillimagesettings?, error: error?) {    if let error = error {      print("error occure : \(error.localizeddescription)")   }    if  let samplebuffer = photosamplebuffer,      let previewbuffer = previewphotosamplebuffer,      let dataimage =  avcapturephotooutput.jpegphotodatarepresentation(forjpegsamplebuffer:  samplebuffer, previewphotosamplebuffer: previewbuffer) {        print(uiimage(data: dataimage)?.size any)       let dataprovider = cgdataprovider(data: dataimage cfdata)      let cgimageref: cgimage! = cgimage(jpegdataprovidersource: dataprovider!, decode: nil, shouldinterpolate: true, intent: .defaultintent)       var orientation = uiimageorientation(rawvalue: 0)       if isfront {         orientation = uiimageorientation.leftmirrored       } else {         orientation = uiimageorientation.right      }       let image = uiimage(cgimage: cgimageref, scale: 1.0, orientation: orientation!)      // var flippedimage = uiimage(cgimage: picture.cgimage!, scale: picture.scale, orientation: .leftmirrored)      let timage = crop(image, withwidth: 100, andheight: 100)       let photosecondvc = self.storyboard?.instantiateviewcontroller(withidentifier: "uploadsecondvc") as! uploadsecondviewcontroller      photosecondvc.imagedata = timage!      photosecondvc.isfront = isfront      self.navigationcontroller?.pushviewcontroller(photosecondvc, animated: false)    } else {      print("some error here")   }    }

there huge delay when take picture (4 or 5 seconds ...) know why ?





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