如何分别获取基于相机和基于媒体的图像/视频以在iOS设备的收藏视图中显示

Question

我正在开发一个聊天应用程序。在我的应用程序中，当点击附件按钮时，应该有两个选项。

1）图像/由此时的器件照相机（未捕获图像捕获的视频。获取从网络或其它下载由存储在设备中的相机拍摄的图像）

2）图像/视频媒体

有什么办法最好使用资产库

Answer 1

class YourController : UIViewController,UINavigationControllerDelegate, UIImagePickerControllerDelegate, UIActionSheetDelegate,UIPopoverPresentationControllerDelegate 
{  

    override func viewDidLoad() { 
     super.viewDidLoad() 
    } 
    func takePhotoByGalleryOrCamera(){ 

     //MAark Take picture from gallery and camera 
     //image picker controller to use take image 
     // uialert controller to make action 

     let imageController = UIImagePickerController() 
     imageController.editing = false 
     imageController.delegate = self; 

     let alert = UIAlertController(title: "", message: "Profile Image Selctor", preferredStyle: UIAlertControllerStyle.ActionSheet) 


     let libButton = UIAlertAction(title: "Select photo from library", style: UIAlertActionStyle.Default) { (alert) -> Void in 
      imageController.sourceType = UIImagePickerControllerSourceType.PhotoLibrary 
      self.presentViewController(imageController, animated: true, completion: nil) 
     } 


     if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)){ 
      let cameraButton = UIAlertAction(title: "Take a picture", style: UIAlertActionStyle.Default) { (alert) -> Void in 
       print("Take Photo") 
       imageController.sourceType = UIImagePickerControllerSourceType.Camera 
       self.presentViewController(imageController, animated: true, completion: nil) 

      } 
      alert.addAction(cameraButton) 
     } else { 
      print("Camera not available") 

     } 
     let cancelButton = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { (alert) -> Void in 
      print("Cancel Pressed") 
     } 

     alert.addAction(libButton) 
     alert.addAction(cancelButton) 

     if UIDevice.currentDevice().userInterfaceIdiom == UIUserInterfaceIdiom.Pad { 

      alert.modalPresentationStyle = UIModalPresentationStyle.Popover; 
      //  alert.transitioningDelegate = self; 
      alert.popoverPresentationController!.sourceView = self.view; 
      alert.popoverPresentationController!.sourceRect = CGRectMake(0, SizeUtil.screenHeight(), SizeUtil.screenWidth(), SizeUtil.screenHeight()*0.4) 
      alert.popoverPresentationController!.delegate = self; 

      self.presentViewController(alert, animated: true, completion: nil) 
     } else { 
      self.presentViewController(alert, animated: true, completion: nil) 
     } 



    } 

    func adaptivePresentationStyleForPresentationController(controller: UIPresentationController) -> UIModalPresentationStyle { 

     return UIModalPresentationStyle.Popover 
    } 


    //image picker Delegate 
    func imagePickerController(picker: UIImagePickerController!, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) { 
     self.dismissViewControllerAnimated(true, completion: nil) 

     let header = profileTableView.headerViewForSection(0) as! ProfileHeaderView 
     header.btnImage.setImage(image, forState: UIControlState.Normal) 
     _userProfileImage = image 

    } 
}