UIImagePickerControllerDelegate,UINavigationControllerDelegate

let sexActionSheet = UIAlertController.init(title: nil, message: nil, preferredStyle: .actionSheet)

        weak var weakSelf = self

        let sexNanAction = UIAlertAction(title: "从相册中选择", style: UIAlertActionStyle.default){ (action:UIAlertAction)in

            weakSelf?.initPhotoPicker()

            //填写需要的响应方法

        }

        let sexNvAction = UIAlertAction(title: "拍照", style: UIAlertActionStyle.default){ (action:UIAlertAction)in

            weakSelf?.initCameraPicker()

            //填写需要的响应方法

        }

        let sexSaceAction = UIAlertAction(title: "取消", style: UIAlertActionStyle.cancel){ (action:UIAlertAction)in

            //填写需要的响应方法

        }

        sexActionSheet.addAction(sexNanAction)

        sexActionSheet.addAction(sexNvAction)

        sexActionSheet.addAction(sexSaceAction)

        self.present(sexActionSheet, animated: true, completion: nil)

//MARK: - 相机

    //从相册中选择

    func initPhotoPicker(){

        let photoPicker =  UIImagePickerController()

        photoPicker.delegate = self

        photoPicker.allowsEditing = true

        photoPicker.sourceType = .photoLibrary

        //在需要的地方present出来

        self.present(photoPicker, animated: true, completion: nil)

    }

    //拍照

    func initCameraPicker(){

        if UIImagePickerController.isSourceTypeAvailable(.camera){

            let  cameraPicker = UIImagePickerController()

            cameraPicker.delegate = self

            cameraPicker.allowsEditing = true

            cameraPicker.sourceType = .camera

            //在需要的地方present出来

            self.present(cameraPicker, animated: true, completion: nil)

        } else {

           print("不支持拍照")

        }

    }

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

        //获得照片

        let image:UIImage = info[UIImagePickerControllerEditedImage] as! UIImage

        // 拍照

        if picker.sourceType == .camera {

         //保存相册

        UIImageWriteToSavedPhotosAlbum(image, self, #selector(image(image:didFinishSavingWithError:contextInfo:)), nil)

        }

        personImage.image = image

        self.dismiss(animated: true, completion: nil)

    }

  @objc func image(image:UIImage,didFinishSavingWithError error:NSError?,contextInfo:AnyObject) {

        if error != nil {

            print("保存失败")

        } else {

            print("保存成功")

        }

    }