swift3.0调用相册首先需要注意:

1.swift3.0中调用相机和相册会导致崩溃

1.需要在info.plist文件中加入两个键值对，如下:

/// 都是String类型，内容任意的字符串即可

Privacy - Photo Library Usage Description

Privacy - Camera Usage Description 

2.UIImagePickerControllerSourceType枚举

public enum UIImagePickerControllerSourceType : Int {

    case photoLibrary       //相册

    case camera             //相机

    case savedPhotosAlbum   //保存照片专辑

}

3.功能实现Demo

//FIXME: 点击添加图片按钮

@objc fileprivate func AddPhotoClick(){

    //1.判断照片控制器是否可用 ,不可用返回

    if !UIImagePickerController.isSourceTypeAvailable(.photoLibrary) {

        return

    }

    //2.创建照片控制器

    let picVc = UIImagePickerController()

    //3.设置控制器类型

    picVc.sourceType = .photoLibrary

    //4.设置是否可以管理已经存在的图片或者视频

    picVc.allowsEditing = true

    //5.设置代理

    picVc.delegate = self

    //6.弹出控制器

    present(picVc, animated: true, completion: nil)

}

4.UIImagePickerController协议

1.需要遵循2个协议:

UIImagePickerControllerDelegate

UINavigationControllerDelegate

5.常用imagePickerController代理方法

// MARK:- UIImagePickerController代理方法

extension LXRComposeViewController :  UIImagePickerControllerDelegate,UINavigationControllerDelegate{

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

        LXRLog(message: info)

    }

}

6.打印信息