NSInvalidArgumentException 与 FBSDKGraphRequest
NSInvalidArgumentException with FBSDKGraphRequest
我遇到以下异常:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary imagePathForPictureMode:size:]: unrecognized selector sent to instance 0x7ff9f8d25d10'
使用此代码:
PFFacebookUtils.logInInBackgroundWithReadPermissions(permissions, block: {
(user: PFUser?, error: NSError?) -> Void in
if let user = user {
if user.isNew {
var request = FBSDKGraphRequest(graphPath: "me", parameters: nil)
request.startWithCompletionHandler({
(connection, result, error) -> Void in
if error == nil {
// exception thrown next line
let strProfilePicURL = result.imagePathForPictureMode(FBSDKProfilePictureMode.Square, size: self.profileImage.frame.size)
let url = NSURL(string: strProfilePicURL, relativeToURL: NSURL(string: "http://graph.facebook.com/"))
let imageData = NSData(contentsOfURL: url!)
let image = UIImage(data: imageData!)
self.profileImage.image = image!
}
})
println("User signed up and logged in through Facebook!")
} else {
println("User logged in through Facebook!")
}
} else {
println("Uh oh. The user cancelled the Facebook login.")
}
})
为什么这里抛出异常?我也试过:
let size = self.profileImage.frame.size as CGSize
let strProfilePicURL = result.imagePathForPictureMode(FBSDKProfilePictureMode.Square, size: size)
currentProfile
是在 SDK 获得访问令牌后异步获取的,因此根据您请求 currentProfile
的时间,它可能为零。
您还可以观察 FBSDKProfileDidChangeNotification
配置文件何时更新。参见 https://developers.facebook.com/docs/reference/ios/current/class/FBSDKProfile/
我遇到以下异常:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary imagePathForPictureMode:size:]: unrecognized selector sent to instance 0x7ff9f8d25d10'
使用此代码:
PFFacebookUtils.logInInBackgroundWithReadPermissions(permissions, block: {
(user: PFUser?, error: NSError?) -> Void in
if let user = user {
if user.isNew {
var request = FBSDKGraphRequest(graphPath: "me", parameters: nil)
request.startWithCompletionHandler({
(connection, result, error) -> Void in
if error == nil {
// exception thrown next line
let strProfilePicURL = result.imagePathForPictureMode(FBSDKProfilePictureMode.Square, size: self.profileImage.frame.size)
let url = NSURL(string: strProfilePicURL, relativeToURL: NSURL(string: "http://graph.facebook.com/"))
let imageData = NSData(contentsOfURL: url!)
let image = UIImage(data: imageData!)
self.profileImage.image = image!
}
})
println("User signed up and logged in through Facebook!")
} else {
println("User logged in through Facebook!")
}
} else {
println("Uh oh. The user cancelled the Facebook login.")
}
})
为什么这里抛出异常?我也试过:
let size = self.profileImage.frame.size as CGSize
let strProfilePicURL = result.imagePathForPictureMode(FBSDKProfilePictureMode.Square, size: size)
currentProfile
是在 SDK 获得访问令牌后异步获取的,因此根据您请求 currentProfile
的时间,它可能为零。
您还可以观察 FBSDKProfileDidChangeNotification
配置文件何时更新。参见 https://developers.facebook.com/docs/reference/ios/current/class/FBSDKProfile/