• 點擊按鈕的方法

  func photos()  {
      
    self.showBottomAlert()
      
  }
  
  

屏幕底部彈出的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:"本地圖片", style: .default)
        {
            action in
            self.goImage()
            
        }
        alertController.addAction(cancel)
        alertController.addAction(takingPictures)
        alertController.addAction(localPhoto)
        self.present(alertController, animated:true, completion:nil)
        
    }

拍照與本地相冊方法

• 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出來
        self.present(cameraPicker, animated: true, completion: nil)
    } else {
        
        print("不支持拍照")
        
    }

}

• 去相冊

func goImage(){

    
    let photoPicker =  UIImagePickerController()
    photoPicker.delegate = self
    photoPicker.allowsEditing = true
    photoPicker.sourceType = .photoLibrary
    //在需要的地方present出來
    self.present(photoPicker, animated: true, completion: nil)
    
}

• 代理

  func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
  
  print("獲得照片============= \(info)")
  
  let image : UIImage = info[UIImagePickerController.InfoKey.editedImage] as! UIImage
  
    //顯示設(shè)置的照片
  imgView.image = image
  
  self.dismiss(animated: true, completion: nil)
  

  }

• 第三方庫實現(xiàn) TZImagePickerController
  必須實現(xiàn)TZImagePickerControllerDelegate

     let imagePickerVc = TZImagePickerController(maxImagesCount: 1, delegate: self)
     imagePickerVc?.modalPresentationStyle = .custom
     self.present(imagePickerVc!, animated: true)

// 圖片選擇器的代理
// TZImagePickerControllerDelegate
func imagePickerController(_ picker: TZImagePickerController!, didFinishPickingPhotos photos: [UIImage]!, sourceAssets assets: [Any]!, isSelectOriginalPhoto: Bool) {
    if let image = photos.first {
        //顯示設(shè)置的照片
        imageview.image = image
                    
    }
    
}