func generateBarCode128(barCodeStr:String,barCodeSize:CGSize) ->UIImage? {//将传入的string转成nsstring，再编码let stringData = barCodeStr.dataUsingEncoding(NSUTF8StringEncoding)//系统自带能生成的码//        CIAztecCodeGenerator 二维码//        CICode128BarcodeGenerator 条形码//        CIPDF417BarcodeGenerator//        CIQRCodeGenerator     二维码let qrFilter = CIFilter(name: "CICode128BarcodeGenerator")qrFilter?.setDefaults()qrFilter?.setValue(stringData, forKey: "inputMessage")let outputImage:CIImage? = qrFilter?.outputImage/*生成的条形码需要对其进行消除模糊处理，本文提供两种方法消除模糊，其原理都是放大条码，但项目中需要在条码底部加上条码内容文字，使用其方法一会模糊并变小文字，所以使用方法二，需要各位去研究下原因哈。。。*/// 消除模糊方法一
//        let context = CIContext()
//        let cgImage = context.createCGImage(outputImage!, fromRect: outputImage!.extent)//        let image = UIImage(CGImage: cgImage, scale: 1.0, orientation: UIImageOrientation.Up)
//
//        // Resize without interpolating
//        let scaleRate:CGFloat = 20.0
//        let resized = resizeImage(addText(image), quality: CGInterpolationQuality.None, rate: scaleRate)// 消除模糊方法二let scaleX:CGFloat = barCodeSize.width/outputImage!.extent.size.width; // extent 返回图片的framelet scaleY:CGFloat = barCodeSize.height/outputImage!.extent.size.height;let resultImage = outputImage?.imageByApplyingTransform(CGAffineTransformScale(CGAffineTransformIdentity, scaleX, scaleY))let image = UIImage.init(CIImage: resultImage!)return addText(image,textName: barCodeStr);}

    //添加条形码下方文字func addText(image:UIImage,textName:String) ->UIImage{let size = CGSizeMake(image.size.width, image.size.height+30)UIGraphicsBeginImageContextWithOptions (size, false , 0.0 );image.drawAtPoint(CGPointZero)// 获得一个位图图形上下文
        let context = UIGraphicsGetCurrentContext ();CGContextDrawPath (context!, .Stroke );//绘制文字let barText:NSString = textNamelet textStyle = NSMutableParagraphStyle()textStyle.lineBreakMode = .ByWordWrappingtextStyle.alignment = .CenterbarText.drawInRect(CGRectMake(0, image.size.height-4, size.width, 30), withAttributes: [NSFontAttributeName:UIFont.systemFontOfSize(18.0),NSBackgroundColorAttributeName:UIColor.clearColor(),NSParagraphStyleAttributeName:textStyle])let image = UIGraphicsGetImageFromCurrentImageContext()UIGraphicsEndImageContext()return image}

//写入本地func writeToLocal(image:UIImage,imgName:String) {let path = (NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true) as NSArray).objectAtIndex(0)let filePath = "\(path)/\(imgName).jpeg"//            let fileurl = __stringToUrl(filePath)let imgData = UIImageJPEGRepresentation(image, 0)if imgData != nil {imgData!.writeToFile(filePath, atomically: true)print("写入成功！！")print("filePath=\(filePath)")}}

    override func viewDidLoad() {super.viewDidLoad()barCodeNameArray = ["SN00000000001","SN00000000002","SN00000000003","SN00000000005","SN00000000006","SN00000000007","SN00000000008","SN00000000009","SN000000000010","SN00000000011","SN00000000012","SN00000000013","SN00000000014","SN00000000015","SN00000000015","SN00000000016","SN00000000017","SN00000000018","SN00000000019"]for codeName in barCodeNameArray {//异步生成条形码，并保存到本地let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0)dispatch_async(queue) {//生成条形码let image = self.generateBarCode128(codeName,barCodeSize: self.barCodeSize)if image != nil {self.writeToLocal(image!,imgName: codeName)}}}}