如何使用ALAssets库获取视频的绝对路径？

Question

Its simple, How can i get an absolute path for a video retrieved using ALAssets Library? I want to upload this video as file attachment using ASI framework.

It works if i use UIImagePickerViewController. But thats NOT an option any more. I also dont want to use NSData or copy-pasting video to temp file. Need a smart solution? Anybody ?

Answer 1

You can't get the absolute path (file system path) for a video you retrieved using the AssetsLibrary-Framework. The simple reason for that is that these files are outside your app's sandbox and you can't access them directly. You need to use the getBytes-Method of ALAssetsRepresentation to get the byte data of the video file. Most likely you will have to save this data to a temp file, before you can attach it to an email.

Cheers,

Hendrik

Answer 2

You can use ALAssetPropertyAssetURL . From documentation :

• The key to retrieve a URL identifier for the asset.

• The corresponding value is an NSURL object.

• This URL is used by the library-change notifications to identify assets and asset groups. Only the ALAssetRepresentation and ALAssetsGroup classes support this property.

So, once you get ALAsset object you can get url like this:

 asset.defaultRepresentation.url