import UIKitimport ZLLToolsimport PhotoFrameworkimport Photosimport AssetsLibraryclass ViewController: UIViewController {    var imageView :UIImageView!    override func viewDidLoad() {        super.viewDidLoad()        GetPhoto.get()         imageView = UIImageView.init(frame: CGRect.init(x: 50, y: 50, width: 300, height: 200))        self.view.addSubview(imageView)        imageView.isUserInteractionEnabled = true        let tap = UITapGestureRecognizer.init(target: self, action: #selector(self.testClick))        imageView.addGestureRecognizer(tap)                imageView.image = ZLLToolCategory.getVideoFirstViewImage(videoUrlString: "http://gslb.miaopai.com/stream/1UKfVpOmazRYEb4fVejwhgpX~3uIxmHBV~8VCQ__.mp4")//获取视频第一帧                    let btn = UIButton.init(frame: CGRect.init(x:(375) / 2 , y: 200 + 20 + 50, width: 60, height: 40))        btn.setTitle("滤镜", for: .normal)        btn.backgroundColor = UIColor.red        btn.addTarget(self, action: #selector(滤镜), for: .touchUpInside)        self.view.addSubview(btn)                let picBtn = UIButton.init(frame: CGRect.init(x:(375) / 2 , y: 200 + 20 + 60 + 50, width: 100, height: 40))        picBtn.setTitle("保存图片", for: .normal)        picBtn.backgroundColor = UIColor.blue        picBtn.addTarget(self, action: #selector(saveBtnClick), for: .touchUpInside)        self.view.addSubview(picBtn)    }    @objc func testClick() {        //选择图片        _ = presentImagePicker(maxSelected: 4, completeHandler: {[weak self] (assets) in            for asset in assets {                print(asset)                //设置图片尺寸                let size = CGSize.init(width: asset.pixelWidth, height: asset.pixelHeight)                //获取图片                PHImageManager.default().requestImage(for: asset, targetSize: size, contentMode: .default, options: nil, resultHandler: { (image, info) in                    self?.imageView.image = image                })            }        })    }        @objc func 滤镜(){        let inputImage = CIImage.init(image: imageView.image!)//        let filter = CIFilter.init(name: "CIAffineTransform")//倾斜//        let filter = CIFilter.init(name: "CISepiaTone")//棕褐色//        let filter = CIFilter.init(name: "CIPhotoEffectNoir")//黑白        let filter = CIFilter.init(name: "CIPhotoEffectNoir")        filter?.setValue(inputImage, forKey: kCIInputImageKey)//        filter?.setValue(NSValue.init(cgAffineTransform: CGAffineTransform.init(a: 0.7, b: 0.5, c: 0.3, d: 1.0, tx: 0.0, ty: 0.0)), forKey: "inputTransform")//倾斜//        filter?.setValue(0.5, forKey: "inputIntensity")//棕褐色    //        filter?.setValue(0.5, forKey: "inputIntensity")        let outputImage = filter?.outputImage        let cgImage = CIContext.init(options: nil).createCGImage(outputImage!, from: (outputImage?.extent)!)        imageView.image = UIImage.init(cgImage: cgImage!)            }        //将view转成图片并保存相册    @objc func saveBtnClick(){        let frame = imageView.frame        UIGraphicsBeginImageContext(frame.size)        imageView.layer.render(in: UIGraphicsGetCurrentContext()!)        let image = UIGraphicsGetImageFromCurrentImageContext()        UIGraphicsEndImageContext()        self.loadImage(image: image!)    }        //保存图片    func loadImage(image:UIImage){                UIImageWriteToSavedPhotosAlbum(image, self, #selector(self.image(image:didFinishSavingWithError:contextInfo:)), nil)    }    @objc func image(image: UIImage, didFinishSavingWithError: NSError?,contextInfo: AnyObject)    {        if didFinishSavingWithError != nil        {            print("error!")            return        }                print("保存成功")    }    override func didReceiveMemoryWarning() {        super.didReceiveMemoryWarning()        // Dispose of any resources that can be recreated.    }}