ios - 如何在我使用 UIImagePickerController 拾取图像后从 PhotoLibrary 中删除图像

Question

我需要从 PhotoLibrary 中删除图像。我在我的应用程序中使用 UIImagePickerController 来拾取图像。在我的应用程序中使用此图像后，我需要从 iOS PhotoLibrary 中删除它。

我的代码片段

if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary)
            {
                var imagePicker = UIImagePickerController()
                imagePicker.delegate = self
                imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary;
                imagePicker.allowsEditing = false
                self.presentViewController(imagePicker, animated: true, completion: nil)
            }


// MARK:- UIImagePickerControllerDelegate
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
    pickedImage = image
    saveImageToDisk(pickedImage)
/*
I need the logic to delete this image from PhotoLibrary here.
*/
    self.dismissViewControllerAnimated(true, completion: nil)
    refreshCollectionView()
}

Answer 1

补充一下，对于 swift 3.0，这对我有用。

PHPhotoLibrary.shared().performChanges({
                let imageAssetToDelete = PHAsset.fetchAssets(withALAssetURLs: imageUrls as! [URL], options: nil)
                PHAssetChangeRequest.deleteAssets(imageAssetToDelete)
            }, completionHandler: {success, error in
                print(success ? "Success" : error )
            })