swift 实现拍照 选择相册

//点击按钮的方法

 func photos()  {

   self.showBottomAlert()

 }

/// 屏幕底部弹出的Alert

 func showBottomAlert(){

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

     let cancel=UIAlertAction(title:"取消", style: .cancel, handler: nil)
     let takingPictures=UIAlertAction(title:"拍照", style: .default)
     {
         action in
         self.goCamera()

     }
     let localPhoto=UIAlertAction(title:"本地图片", style: .default)
     {
         action in
         self.goImage()

     }
     alertController.addAction(cancel)
     alertController.addAction(takingPictures)
     alertController.addAction(localPhoto)
     self.present(alertController, animated:true, completion:nil)

 }

//拍照与本地相册方法/

// 去拍照

 func goCamera(){

     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")

     }

 }

/// 去相册

 func goImage(){

     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)

 }

//代理

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

    print("获得照片============= \(info)")

    let image : UIImage = info[UIImagePickerController.InfoKey.editedImage] as! UIImage

    //显示设置的照片
    imgView.image = image

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

作者：江河_ios
链接：https://www.jianshu.com/p/fc0768999ef8