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How do I post videos
to Facebook?
potatotips #25
@woxtu
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Background
• Post videos made with app
• Using Facebook SDK for iOS 4.8.0
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Prepare to post
• Download SDK
• Add Frameworks to your project
• Edit Info.plist
• Edit AppDelegate
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No content
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Read Quick Start!
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Required to post videos
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Required to post videos
• NSURL
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Required to post videos
• NSURL
• FBSDKShareVideo
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Required to post videos
• NSURL
• FBSDKShareVideo
• FBSDKShareVideoContent
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Required to post videos
• NSURL
• FBSDKShareVideo
• FBSDKShareVideoContent
• FBSDKShareDialog
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Required to post videos
• NSURL
• FBSDKShareVideo
• FBSDKShareVideoContent
• FBSDKShareDialog
• FBSDKSharingDelegate
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Post videos
let videoUrl = ...
let video = FBSDKShareVideo(videoURL: videoUrl)
let content = FBSDKShareVideoContent()
content.video = video
FBSDKShareDialog.showFromViewController(self,
withContent: content,
delegate: self)
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Easy!
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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)
}
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Post it!
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Nothing happens.
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an ideal
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reality
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The operation couldn’t be completed.
(com.facebook.sdk.share error 2.)
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The operation couldn’t be completed!
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No content
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Read Docs!
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People who share should have Facebook
for iOS client installed!
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Post photos, links, and more
Facebook
File
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Post videos
Facebook
URL File
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No content
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How to check app installed?
let url = NSURL(string: "fb://")!
if UIApplication.sharedApplication().canOpenURL(url) {
...
}
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How to check user signed in?
if FBSDKAccessToken.currentAccessToken() != nil {
...
} else {
FBSDKLoginManager()
.logInWithPublishPermissions(["publish_actions"],
fromViewController: self) { _ in
...
}
}
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No content
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The video URL videoURL must be
an asset URL!
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Asset URL?
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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
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How to get asset URL?
extension ViewController: UIImagePickerControllerDelegate {
func imagePickerController(picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : AnyObject]) {
if let assetUrl =
info[UIImagePickerControllerReferenceURL] as? NSURL
{
...
}
}
}
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How to get asset URL?
let library = ALAssetsLibrary()
library.writeVideoAtPathToSavedPhotosAlbum(videoUrl)
{ assetURL, error in
...
}
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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)
...
}
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If you get the error:
The operation couldn’t be completed.
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Check list
• Your Info.plist
• Your AppDelegate
• User signed in Facebook
* Facebook App is installed
* Video URL must be asset URL
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How do I post videos
to Facebook?
potatotips #25
@woxtu