Swift3.0：照片选择

 func chooseImageFromAlbum(){
        
        //判断是否支持要使用的图片库
        if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) {
            
            //初始化图片控制器
            let picker = UIImagePickerController()
            
            //设置代理
            picker.delegate = self
            
            //设置媒体类型
            picker.mediaTypes = [kUTTypeImage as String,kUTTypeVideo as String]
            
            //设置允许编辑
            picker.allowsEditing = true
            
            //指定图片控制器类型
            picker.sourceType = .photoLibrary
            
            //弹出控制器,显示界面
            self.present(picker, animated: true, completion: nil)
        }
        else{
            
            let alert = UIAlertView.init(title: "读取相册错误!", message: nil, delegate: nil, cancelButtonTitle: "确定")
            alert.show()
        }
    }
    
 //实现图片控制器代理方法
 func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        
        //查看info对象
        print(info)
        
        //获取选择的原图
        let originImage = info[UIImagePickerControllerOriginalImage] as! UIImage
        
        //赋值，图片视图显示图片
        self.pickerView.image = originImage
        
        //图片控制器退出
        picker.dismiss(animated: true, completion: nil)
    }
    
    //取消图片控制器代理
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        
        //图片控制器退出
        picker.dismiss(animated: true, completion: nil)
    }

func takePhotoFromCamera() {
        
        //判断是否支持相机
        if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) {
            
            //初始化图片控制器
            let picker = UIImagePickerController()
            
            //设置代理
            picker.delegate = self
            
            //设置媒体类型
            picker.mediaTypes = [kUTTypeImage as String,kUTTypeVideo as String]
            
            //设置来源
            picker.sourceType = UIImagePickerControllerSourceType.camera
            
            //设置镜头 front:前置摄像头  Rear:后置摄像头
            if UIImagePickerController.isCameraDeviceAvailable(UIImagePickerControllerCameraDevice.front) {
                picker.cameraDevice = UIImagePickerControllerCameraDevice.front
            }
            
            //设置闪光灯(On:开、Off:关、Auto:自动)
            picker.cameraFlashMode = UIImagePickerControllerCameraFlashMode.on
            
            //允许编辑
            picker.allowsEditing = true
            
            //打开相机
            self.present(picker, animated: true, completion: nil)
        }
        else{
            
            let alert = UIAlertView.init(title: "找不到相机!", message: nil, delegate: nil, cancelButtonTitle: "确定")
            alert.show()
        }
    }