Re: iOS 8.4: Converting a URL into a PHAsset
Re: iOS 8.4: Converting a URL into a PHAsset
- Subject: Re: iOS 8.4: Converting a URL into a PHAsset
- From: Carl Hoefs <email@hidden>
- Date: Wed, 29 Jul 2015 08:47:07 -0700
> On Jul 28, 2015, at 11:59 PM, Ben Kennedy <email@hidden> wrote:
>
> On 28 Jul 2015, at 7:17 pm, Carl Hoefs <email@hidden> wrote:
>>
>> I'm trying to get an NSURL into PHAsset form, but I keep coming up with null. PHAsset fetchAssetsWithALAssetURLs: takes an NSArray of NSURLs: "An array of NSURL objects, each an asset URL previously retrieved from an ALAsset object." Apparently, this is not a simple array of NSURL objects.
>
> Well, more specifically, it sounds like an array of “asset URLs previously retrieved from an ALAsset object.”
>
>> 2015-07-28 19:04:36.221 hsvst[577:76956] assetURLs (
>> "file:///var/mobile/Containers/Data/Application/9C51BEE6-80A7-15A4-72DA-19E447A75E25/Documents/hsvst_0005.mov"
>> )
>
> Indeed, that looks like a file:// URL representing a path to regular disk file on the filesystem, not an asset URL from an ALAsset object.
>
> Have you looked at +[PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:] ? For example:
>
>> PHAssetChangeRequest *assetRequest = [PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL: self.sourcePlayListItem.url];
>> PHObjectPlaceholder *assetPlaceholder = assetRequest.placeholderForCreatedAsset;
>> /* treat assetPlaceholder as a PHAsset and do something with it */ ;
>
> What are you ultimately trying to do?
>
Ultimately, I'm simply trying to delete the asset:
[PHAssetChangeRequest deleteAssets:@[asset]];
You're right, of course, that I've overlooked the fine print: it wants an array of “asset URLs previously retrieved from an ALAsset object.” I'm not quite certain what that means, exactly.
I'm able to delete the asset by using:
[[NSFileManager defaultManager] removeItemAtURL: self.sourcePlayListItem.url error:&error];
but I think the new 'photo asset' way is preferred in iOS8+, so I thought I'd try to be compliant.
-Carl
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden