Facebook SDK Integration - LoadPicture Method ERROR - function

Question

So hi to #ll this is my fist post/question on stackoverflow :D
I need help # following :
So i integrated the Facebook SDk sucessfully in my game but i´dont get the profile picture working ...
So i tryied it oldshool on Facebooks "Tutotial" Way and followed all steps to implement login functions and so on ...
I´ve downloaded the "friendsmash_start" Sample and implemented that Stuff ...
My Main Problem is i don´t get ahead with this problem and can´t figure out what i´m doing wrong so i´m hoping for help.
Here´s the complete Code from the MainMenu Script from the sample which is the only i´ve changed ... like in the tutorial ...
Unity shows me this Error -> "The name 'LoadPicture' does not exist in the current context ... so the errors are on these two parts of code :
"LoadPicture(Util.GetPictureURL("me", 128, 128), MyPictureCallback);" in the "OnLoggedIn" function
"LoadPicture(Util.GetPictureURL("me", 128, 128), MyPictureCallback);" in the "MyPictureCallback" function
I don´t understand it cause i searched myself in the script for this function "LoadPicture" and find nothing that was ... according to the "Tutorial" of facebook here :
https://developers.facebook.com/docs/games/unity/unity-tutorial?locale=de_DE
the function should be there cause they wrote there :
"Take a look at the LoadPicture method also in MainMenu.cs to see how we use the Unity WWW class to load the image returned by the graph API."
But i can´t find it :(
HOPE SOMEONE CAN HELP ME I DON´T GET IT ...
Have that problem unfortunately very long time ... thats enoying. :(
HERE`S THE FULL CODE OF MAINMENU.CS :
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using Facebook.MiniJSON;
using System;
public class MainMenu : MonoBehaviour
{
// Inspector tunable members //
public Texture ButtonTexture;
public Texture PlayTexture; // Texture for main menu button icons
public Texture BragTexture;
public Texture ChallengeTexture;
public Texture StoreTexture;
public Texture FullScreenTexture;
public Texture FullScreenActiveTexture;
public Texture ResourcesTexture;
public Vector2 CanvasSize; // size of window on canvas
public Rect LoginButtonRect; // Position of login button
public Vector2 ResourcePos; // position of resource indicators (not used yet)
public Vector2 ButtonStartPos; // position of first button in main menu
public float ButtonScale; // size of main menu buttons
public float ButtonYGap; // gap between buttons in main menu
public float ChallengeDisplayTime; // Number of seconds the request sent message is displayed for
public Vector2 ButtonLogoOffset; // Offset determining positioning of logo on buttons
public float TournamentStep; // Spacing between tournament entries
public float MouseScrollStep = 40; // Amount score table moves with each step of the mouse wheel
public PaymentDialog paymentDialog;
public GUISkin MenuSkin;
public int CoinBalance;
public int NumLives;
public int NumBombs;
public Texture[] CelebTextures;
public string [] CelebNames;
// Private members //
private static MainMenu instance;
private static List<object> friends = null;
private static Dictionary<string, string> profile = null;
private static List<object> scores = null;
private static Dictionary<string, Texture> friendImages = new Dictionary<string, Texture>();
private Vector2 scrollPosition = Vector2.zero;
private bool haveUserPicture = false;
private float tournamentLength = 0;
private int tournamentWidth = 512;
private int mainMenuLevel = 0; // Level index of main menu
private string popupMessage;
private float popupTime;
private float popupDuration;
void Awake()
{
Util.Log("Awake");
paymentDialog = ((PaymentDialog)(GetComponent("PaymentDialog")));
// allow only one instance of the Main Menu
if (instance != null && instance != this)
{
Destroy(gameObject);
return;
}
#if UNITY_WEBPLAYER
// Execute javascript in iframe to keep the player centred
string javaScript = #"
window.onresize = function() {
var unity = UnityObject2.instances[0].getUnity();
var unityDiv = document.getElementById(""unityPlayerEmbed"");
var width = window.innerWidth;
var height = window.innerHeight;
var appWidth = " + CanvasSize.x + #";
var appHeight = " + CanvasSize.y + #";
unity.style.width = appWidth + ""px"";
unity.style.height = appHeight + ""px"";
unityDiv.style.marginLeft = (width - appWidth)/2 + ""px"";
unityDiv.style.marginTop = (height - appHeight)/2 + ""px"";
unityDiv.style.marginRight = (width - appWidth)/2 + ""px"";
unityDiv.style.marginBottom = (height - appHeight)/2 + ""px"";
}
window.onresize(); // force it to resize now";
Application.ExternalCall(javaScript);
#endif
DontDestroyOnLoad(gameObject);
instance = this;
// Initialize FB SDK
FB.Init(SetInit, OnHideUnity);
}
private void SetInit()
{
Util.Log("SetInit");
enabled = true; // "enabled" is a property inherited from MonoBehaviour
if (FB.IsLoggedIn)
{
Util.Log("Already logged in");
OnLoggedIn();
}
}
private void OnHideUnity(bool isGameShown)
{
Util.Log("OnHideUnity");
if (!isGameShown)
{
// pause the game - we will need to hide
Time.timeScale = 0;
}
else
{
// start the game back up - we're getting focus again
Time.timeScale = 1;
}
}
private void QueryScores()
{
FB.API("/app/scores?fields=score,user.limit(20)", Facebook.HttpMethod.GET, ScoresCallback);
}
private int getScoreFromEntry(object obj)
{
Dictionary<string,object> entry = (Dictionary<string,object>) obj;
return Convert.ToInt32(entry["score"]);
}
void ScoresCallback(FBResult result)
{
Util.Log("ScoresCallback");
if (result.Error != null)
{
Util.LogError(result.Error);
return;
}
scores = new List<object>();
List<object> scoresList = Util.DeserializeScores(result.Text);
foreach(object score in scoresList)
{
var entry = (Dictionary<string,object>) score;
var user = (Dictionary<string,object>) entry["user"];
string userId = (string)user["id"];
if (string.Equals(userId,FB.UserId))
{
// This entry is the current player
int playerHighScore = getScoreFromEntry(entry);
Util.Log("Local players score on server is " + playerHighScore);
if (playerHighScore < GameStateManager.Score)
{
Util.Log("Locally overriding with just acquired score: " + GameStateManager.Score);
playerHighScore = GameStateManager.Score;
}
entry["score"] = playerHighScore.ToString();
GameStateManager.HighScore = playerHighScore;
}
scores.Add(entry);
if (!friendImages.ContainsKey(userId))
{
// We don't have this players image yet, request it now
LoadPictureAPI(Util.GetPictureURL(userId, 128, 128),pictureTexture =>
{
if (pictureTexture != null)
{
friendImages.Add(userId, pictureTexture);
}
});
}
}
// Now sort the entries based on score
scores.Sort(delegate(object firstObj,
object secondObj)
{
return -getScoreFromEntry(firstObj).CompareTo(getScoreFromEntry(secondObj));
}
);
}
void OnApplicationFocus( bool hasFocus )
{
Util.Log ("hasFocus " + (hasFocus ? "Y" : "N"));
}
// Convenience function to check if mouse/touch is the tournament area
private bool IsInTournamentArea (Vector2 p)
{
return p.x > Screen.width-tournamentWidth;
}
// Scroll the tournament view by some delta
private void ScrollTournament(float delta)
{
scrollPosition.y += delta;
if (scrollPosition.y > tournamentLength - Screen.height)
scrollPosition.y = tournamentLength - Screen.height;
if (scrollPosition.y < 0)
scrollPosition.y = 0;
}
// variables for keeping track of scrolling
private Vector2 mouseLastPos;
private bool mouseDragging = false;
void Update()
{
if(Input.touches.Length > 0)
{
Touch touch = Input.touches[0];
if (IsInTournamentArea (touch.position) && touch.phase == TouchPhase.Moved)
{
// dragging
ScrollTournament (touch.deltaPosition.y*3);
}
}
if (Input.GetAxis("Mouse ScrollWheel") < 0)
{
ScrollTournament (MouseScrollStep);
}
else if (Input.GetAxis("Mouse ScrollWheel") > 0)
{
ScrollTournament (-MouseScrollStep);
}
if (Input.GetMouseButton(0) && IsInTournamentArea(Input.mousePosition))
{
if (mouseDragging)
{
ScrollTournament (Input.mousePosition.y - mouseLastPos.y);
}
mouseLastPos = Input.mousePosition;
mouseDragging = true;
}
else
mouseDragging = false;
}
// Button drawing logic //
private Vector2 buttonPos; // Keeps track of where we've got to on the screen as we draw buttons
private void BeginButtons()
{
// start drawing buttons at the chosen start position
buttonPos = ButtonStartPos;
}
private bool DrawButton(string text, Texture texture)
{
// draw a single button and update our position
bool result = GUI.Button(new Rect (buttonPos.x,buttonPos.y, ButtonTexture.width * ButtonScale, ButtonTexture.height * ButtonScale),text,MenuSkin.GetStyle("menu_button"));
Util.DrawActualSizeTexture(ButtonLogoOffset*ButtonScale+buttonPos,texture,ButtonScale);
buttonPos.y += ButtonTexture.height*ButtonScale + ButtonYGap;
if (paymentDialog.DialogEnabled)
result = false;
return result;
}
void OnGUI()
{
GUI.skin = MenuSkin;
if (Application.loadedLevel != mainMenuLevel) return; // don't display anything except when in main menu
GUILayout.Box("", MenuSkin.GetStyle("panel_welcome"));
if (!FB.IsLoggedIn)
{
GUI.Label((new Rect(179, 11, 287, 160)), "Login to Facebook", MenuSkin.GetStyle("text_only"));
if (GUI.Button(LoginButtonRect, "", MenuSkin.GetStyle("button_login")))
{
FB.Login("email,publish_actions", LoginCallback);
}
}
if (FB.IsLoggedIn)
{
string panelText = "Welcome ";
panelText += (!string.IsNullOrEmpty(GameStateManager.Username)) ? string.Format("{0}!", GameStateManager.Username) : "Smasher!";
if (GameStateManager.UserTexture != null)
GUI.DrawTexture( (new Rect(8,10, 150, 150)), GameStateManager.UserTexture);
GUI.Label( (new Rect(179 , 11, 287, 160)), panelText, MenuSkin.GetStyle("text_only"));
}
string subTitle = "Let's smash some friends!";
if (GameStateManager.Score > 0)
{
subTitle = "Score: " + GameStateManager.Score.ToString();
}
if (!string.IsNullOrEmpty(subTitle))
{
GUI.Label( (new Rect(132, 28, 400, 160)), subTitle, MenuSkin.GetStyle("sub_title"));
}
BeginButtons();
if (DrawButton("Play",PlayTexture))
{
onPlayClicked();
}
if (FB.IsLoggedIn)
{
// Draw resources bar
Util.DrawActualSizeTexture(ResourcePos,ResourcesTexture);
Util.DrawSimpleText(ResourcePos + new Vector2(47,5) ,MenuSkin.GetStyle("resources_text"),string.Format("{0}",CoinBalance));
Util.DrawSimpleText(ResourcePos + new Vector2(137,5) ,MenuSkin.GetStyle("resources_text"),string.Format("{0}",NumBombs));
Util.DrawSimpleText(ResourcePos + new Vector2(227,5) ,MenuSkin.GetStyle("resources_text"),string.Format("{0}",NumLives));
}
#if UNITY_WEBPLAYER
if (Screen.fullScreen)
{
if (DrawButton("Full Screen",FullScreenActiveTexture))
SetFullscreenMode(false);
}
else
{
if (DrawButton("Full Screen",FullScreenTexture))
SetFullscreenMode(true);
}
#endif
DrawPopupMessage();
}
public void AddPopupMessage(string message, float duration)
{
popupMessage = message;
popupTime = Time.realtimeSinceStartup;
popupDuration = duration;
}
public void DrawPopupMessage()
{
if (popupTime != 0 && popupTime + popupDuration > Time.realtimeSinceStartup)
{
// Show message that we sent a request
Rect PopupRect = new Rect();
PopupRect.width = 800;
PopupRect.height = 100;
PopupRect.x = Screen.width / 2 - PopupRect.width / 2;
PopupRect.y = Screen.height / 2 - PopupRect.height / 2;
GUI.Box(PopupRect,"",MenuSkin.GetStyle("box"));
GUI.Label(PopupRect, popupMessage, MenuSkin.GetStyle("centred_text"));
}
}
void TournamentGui()
{
GUILayout.BeginArea(new Rect((Screen.width - 450),0,450,Screen.height));
// Title box
GUI.Box (new Rect(0, - scrollPosition.y, 100,200), "", MenuSkin.GetStyle("tournament_bar"));
GUI.Label (new Rect(121 , - scrollPosition.y, 100,200), "Tournament", MenuSkin.GetStyle("heading"));
Rect boxRect = new Rect();
if(scores != null)
{
var x = 0;
foreach(object scoreEntry in scores)
{
Dictionary<string,object> entry = (Dictionary<string,object>) scoreEntry;
Dictionary<string,object> user = (Dictionary<string,object>) entry["user"];
string name = ((string) user["name"]).Split(new char[]{' '})[0] + "\n";
string score = "Smashed: " + entry["score"];
boxRect = new Rect(0, 121+(TournamentStep*x)-scrollPosition.y , 100,128);
// Background box
GUI.Box(boxRect,"",MenuSkin.GetStyle("tournament_entry"));
// Text
GUI.Label (new Rect(24, 136 + (TournamentStep * x) - scrollPosition.y, 100,128), (x+1)+".", MenuSkin.GetStyle("tournament_position")); // Rank e.g. "1.""
GUI.Label (new Rect(250,145 + (TournamentStep * x) - scrollPosition.y, 300,100), name, MenuSkin.GetStyle("tournament_name")); // name
GUI.Label (new Rect(250,193 + (TournamentStep * x) - scrollPosition.y, 300,50), score, MenuSkin.GetStyle("tournament_score")); // score
Texture picture;
if (friendImages.TryGetValue((string) user["id"], out picture))
{
GUI.DrawTexture(new Rect(118,128+(TournamentStep*x)-scrollPosition.y,115,115), picture); // Profile picture
}
x++;
}
}
else GUI.Label (new Rect(180,270,512,200), "Loading...", MenuSkin.GetStyle("text_only"));
// Record length so we know how far we can scroll to
tournamentLength = boxRect.y + boxRect.height + scrollPosition.y;
GUILayout.EndArea();
}
// React to menu buttons //
private void onPlayClicked()
{
Util.Log("onPlayClicked");
if (friends != null && friends.Count > 0)
{
// Select a random friend and get their picture
Dictionary<string, string> friend = Util.RandomFriend(friends);
GameStateManager.FriendName = friend["first_name"];
GameStateManager.FriendID = friend["id"];
GameStateManager.CelebFriend = -1;
LoadPictureURL(friend["image_url"],FriendPictureCallback);
}
else
{
//We can't access friends
GameStateManager.CelebFriend = UnityEngine.Random.Range(0,CelebTextures.Length - 1);
GameStateManager.FriendName = CelebNames[GameStateManager.CelebFriend];
}
// Start the main game
Application.LoadLevel("GameStage");
GameStateManager.Instance.StartGame();
}
public void SetFullscreenMode (bool on)
{
if (on)
{
Screen.SetResolution (Screen.currentResolution.width, Screen.currentResolution.height, true);
}
else
{
Screen.SetResolution ((int)CanvasSize.x, (int)CanvasSize.y, false);
}
}
public static void FriendPictureCallback(Texture texture)
{
GameStateManager.FriendTexture = texture;
}
delegate void LoadPictureCallback (Texture texture);
IEnumerator LoadPictureEnumerator(string url, LoadPictureCallback callback)
{
WWW www = new WWW(url);
yield return www;
callback(www.texture);
}
void LoadPictureAPI (string url, LoadPictureCallback callback)
{
FB.API(url,Facebook.HttpMethod.GET,result =>
{
if (result.Error != null)
{
Util.LogError(result.Error);
return;
}
var imageUrl = Util.DeserializePictureURLString(result.Text);
StartCoroutine(LoadPictureEnumerator(imageUrl,callback));
});
}
void LoadPictureURL (string url, LoadPictureCallback callback)
{
StartCoroutine(LoadPictureEnumerator(url,callback));
}
void LoginCallback(FBResult result)
{
Util.Log("LoginCallback");
if (FB.IsLoggedIn)
{
OnLoggedIn();
}
}
void OnLoggedIn()
{
Util.Log("Logged in. ID: " + FB.UserId);
// Reqest player info and profile picture
FB.API("/me?fields=id,first_name,friends.limit(100).fields(first_name,id)", Facebook.HttpMethod.GET, APICallback);
LoadPicture(Util.GetPictureURL("me", 128, 128), MyPictureCallback);
}
void APICallback(FBResult result)
{
Util.Log("APICallback");
if (result.Error != null)
{
Util.LogError(result.Error);
// Let's just try again
FB.API("/me?fields=id,first_name,friends.limit(100).fields(first_name,id)", Facebook.HttpMethod.GET, APICallback);
return;
}
profile = Util.DeserializeJSONProfile(result.Text);
GameStateManager.Username = profile["first_name"];
friends = Util.DeserializeJSONFriends(result.Text);
}
void MyPictureCallback(Texture texture)
{
Util.Log("MyPictureCallback");
if (texture == null)
{
// Let's just try again
LoadPicture(Util.GetPictureURL("me", 128, 128), MyPictureCallback);
return;`
}
GameStateManager.UserTexture = texture;
}
}

Answer 1

change the word "LoadPicture" for "LoadPictureAPI".
For reference see:
https://github.com/fbsamples/friendsmash-unity/blob/master/friendsmash_payments_start/Assets/Scripts/MainMenu.cs