How to get the cover photo from Facebook + Swift + Parse - ios

Question

I have a log in system in my app swift 2.0 integrated with Facebook, I'm able to get some user informations and profile_picture.
I'm wondering how to get the cover Image from the User logged :
let requestParameters = ["fields": "id, email, first_name, last_name, name, gender, cover"]
let userDetails = FBSDKGraphRequest(graphPath: "me", parameters: requestParameters)
userDetails.startWithCompletionHandler { (connection, result, error:NSError!) -> Void in
if(error != nil)
{
print("\(error.localizedDescription)")
return
}
if(result != nil)
{
let userId:String = result["id"] as! String
let userFirstName:String? = result["first_name"] as? String
let userLastName:String? = result["last_name"] as? String
let userEmail:String? = result["email"] as? String
let userName:String? = result["name"] as? String
let userGender:String? = result["gender"] as? String
let userCover:UIImage? = result["cover"] as? UIImage
print(requestParameters)
print(userDetails)
print(userCover)
print("\(userEmail)")
let myUser:PFUser = PFUser.currentUser()!
// Save first name
if(userFirstName != nil)
{
myUser.setObject(userFirstName!, forKey: "firstNameColumn")
}
//Save last name
if(userLastName != nil)
{
myUser.setObject(userLastName!, forKey: "lastNameColumn")
}
// Save email address
if(userEmail != nil)
{
myUser.setObject(userEmail!, forKey: "email")
}
// Save email address
if(userGender != nil)
{
if (userGender == "male"){
myUser.setObject("Masculino", forKey: "genderColumn")
} else {
myUser.setObject("Feminino", forKey: "genderColumn")
}
}
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) {
// Get Facebook profile picture
let userProfile = "https://graph.facebook.com/" + userId + "/picture?type=large"
let profilePictureUrl = NSURL(string: userProfile)
let profilePictureData = NSData(contentsOfURL: profilePictureUrl!)
if(profilePictureData != nil)
{
let profileFileObject = PFFile(data:profilePictureData!)
myUser.setObject(profileFileObject!, forKey: "photoUserColumn")
}
myUser.saveInBackgroundWithBlock({ (success:Bool, error:NSError?) -> Void in
if(success)
{
print("User details are now updated")
}
})
}
This code its not working just for the cover Image.
Any ideas?

Answer 1

Here's a working example using fb sdk in swift. I posted this answer in the other question as well but because this answer came up first for me on google I thought it'll be nice to put it here as well.
I needed to get the cover photo of a page so in the graphPath I used page id. This parameter can be easily changed to fit users / events / etc...
let request = FBSDKGraphRequest(graphPath: "\\(page.id)?fields=cover", parameters: [
"access_token": "your_access_token"
], HTTPMethod: "GET")
request.startWithCompletionHandler({(connection , result , error) in
if ((error) != nil) {
print("Error in fetching cover photo for \\(page.id): \(error)", terminator: "")
}
else {
if let data = result["cover"] as? NSDictionary {
self.fetchImageFromUrl(data["source"] as! String, cb: {(image: UIImage) -> Void in
//do something with image
})
}
})
func fetchImageFromUrl(url: String, cb: (UIImage) -> Void) {
let urlObj = NSURL(string: url)!
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) {
let data = NSData(contentsOfURL: urlObj)
dispatch_async(dispatch_get_main_queue(), {
let image = UIImage(data: data!)!
cb(image)
});
}
}
P.S - I'm a newbie in swift / ios so this code might not be the best. Comments will be appreciated.

Answer 2

It can be useful.
let emailRequest = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"email,name, id,cover"], tokenString: result?.token.tokenString, version: nil, httpMethod: "GET")
_ = emailRequest?.start(completionHandler: { (nil, resultParameters, error) in
if(error == nil) {
if let cover = (params?["cover"] as? NSDictionary)["source"]{
var coverUrl = cover as? String
}
}
})