How do I post videos to Facebook?

Transcript

1. How do I post videos to Facebook? potatotips #25 @woxtu
2. Background • Post videos made with app • Using Facebook SDK for iOS 4.8.0
3. Prepare to post • Download SDK • Add Frameworks to your project • Edit Info.plist • Edit AppDelegate
5. Read Quick Start!
6. Required to post videos
7. Required to post videos • NSURL
8. Required to post videos • NSURL • FBSDKShareVideo
9. Required to post videos • NSURL • FBSDKShareVideo • FBSDKShareVideoContent
10. Required to post videos • NSURL • FBSDKShareVideo • FBSDKShareVideoContent • FBSDKShareDialog
11. Required to post videos • NSURL • FBSDKShareVideo • FBSDKShareVideoContent • FBSDKShareDialog • FBSDKSharingDelegate
12. Post videos let videoUrl = ... let video = FBSDKShareVideo(videoURL: videoUrl) let content = FBSDKShareVideoContent() content.video = video FBSDKShareDialog.showFromViewController(self, withContent: content, delegate: self)
13. Easy!
14. Let’s do it @IBAction func post(sender: AnyObject) { let documentsPath = "\(NSHomeDirectory())/Documents" let videoUrl = NSURL(fileURLWithPath: "\(documentsPath)/video.mp4") let video = FBSDKShareVideo(videoURL: videoUrl) let content = FBSDKShareVideoContent() content.video = video FBSDKShareDialog.showFromViewController(self, withContent: content, delegate: self) }
15. Post it!
16. Nothing happens.
17. an ideal
18. reality
19. The operation couldn’t be completed. (com.facebook.sdk.share error 2.)
20. The operation couldn’t be completed!
22. Read Docs!
25. People who share should have Facebook
 for iOS client installed!
26. Post photos, links, and more Facebook File
27. Post videos Facebook URL File
29. How to check app installed? let url = NSURL(string: "fb://")! if UIApplication.sharedApplication().canOpenURL(url) { ... }
30. How to check user signed in? if FBSDKAccessToken.currentAccessToken() != nil { ... } else { FBSDKLoginManager() .logInWithPublishPermissions(["publish_actions"], fromViewController: self) { _ in ... } }
32. The video URL videoURL must be
 an asset URL!
33. Asset URL?
34. File URLs • File URL e.g. file:///private/var/mobile/Containers/Data/Application/ E5F753E8-EF71-4C3F-866B-57C0183984FB/tmp/trim. 5BB698D9-2356-418E-BD15-919129F33D41.MOV • Asset URL e.g. assets-library://asset/asset.MOV?id=1C05C4B0- A708-46B6-A665-5AD3020806F3&ext=MOV
35. How to get asset URL? extension ViewController: UIImagePickerControllerDelegate { func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) { if let assetUrl = info[UIImagePickerControllerReferenceURL] as? NSURL { ... } } }
36. How to get asset URL? let library = ALAssetsLibrary() library.writeVideoAtPathToSavedPhotosAlbum(videoUrl) { assetURL, error in ... }
37. How to get asset URL? var localIdentifier = "" PHPhotoLibrary.sharedPhotoLibrary().performChanges({ let request = PHAssetChangeRequest.creationRequestForAssetFromVideoAtFileURL(videoUrl)! localIdentifier = request.placeholderForCreatedAsset!.localIdentifier }) { success, error in if success { let ext = videoUrl.pathExtension! let uuid = localIdentifier .substringToIndex(localIdentifier.startIndex.advancedBy(36)) let assetPath = "assets-library://asset/asset.\(ext)?id=\(uuid)&ext=\(ext)" let assetUrl = NSURL(string: assetPath) ... }
38. If you get the error: 
 The operation couldn’t be completed.
39. Check list • Your Info.plist • Your AppDelegate • User signed in Facebook * Facebook App is installed * Video URL must be asset URL
40. How do I post videos to Facebook? potatotips #25 @woxtu