压缩并用 Alamofire 上传多张图片

来源：互联网发布：南方电网邮箱域名编辑：程序博客网时间：2024/05/15 23:47

Util.showGifLoading(self.view) //你的 loading        let imageDataArray = self.lqPhotoPicker_getBigImageDataArray()//这里替换成你的图片 Data 数组        let imageBigArray = self.lqPhotoPicker_getBigImageArray()//这里替换成你的 UIImage 数组        let token:String = UserDefaults.standard.value(forKey: "token") as! String        let url = "your url"        let attachArray:NSMutableArray = NSMutableArray()        for i in 0..<(imageDataArray?.count)! {            //压缩图片            var imgData = imageDataArray?[i] as! Data            let imgBig = imageBigArray?[i] as! UIImage            if(imgData.count/1024 > 100) {                imgData = UIImageJPEGRepresentation(imgBig,0.1)!  // 压缩比例在0~1之间，压缩后视觉上不失真            }            Alamofire.upload(                multipartFormData: { multipartFormData in                    multipartFormData.append(imgData, withName: "image", fileName: "file.png", mimeType: "image/png")            },                to: url,                encodingCompletion: { encodingResult in                    switch encodingResult {                    case .success(let upload, _, _):                        upload.responseJSON { response in                            //以下是根据我们后台返回的数据进行的判断 请自行调整                            if let data:NSDictionary = response.result.value as? NSDictionary {                                if(Util.processServerError(data)) {                                    if(data.value(forKey: "retCode") as! String != "0"){                                        //上传失败提示                                        Util.showMessage(self.view, text: (data.value(forKey: "message") as! String))                                    }else{                                        attachArray.add((data["url"] as? String)!)                                        self.attach = attachArray.componentsJoined(by: ",")                                        if(attachArray.count == imageDataArray?.count) {                                            //上传完成                                        }                                    }                                }                            }else {                                Util.showMessage(self.view, text: "图片上传失败，请重试") //你的个性化提示                            }                        }                    case .failure(let encodingError):                        print(encodingError)                    }            })        }

附：压缩图片尺寸并压缩图片大小

static func zipImage(currentImage: UIImage,scaleSize:CGFloat,percent: CGFloat) -> NSData{          //压缩图片尺寸          UIGraphicsBeginImageContext(CGSizeMake(currentImage.size.width*scaleSize, currentImage.size.height*scaleSize))          currentImage.drawInRect(CGRect(x: 0, y: 0, width: currentImage.size.width*scaleSize, height:currentImage.size.height*scaleSize))          let newImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()          UIGraphicsEndImageContext()          //高保真压缩图片质量          //UIImageJPEGRepresentation此方法可将图片压缩，但是图片质量基本不变，第二个参数即图片质量参数。          let imageData: NSData = UIImageJPEGRepresentation(newImage, percent)!          return imageData      }

阅读全文

1 0