I have a singleton class that i use to handle all the facebook stuff...
but when i try to init the _facebook it throws an unrecognizer selector exception
(id)initWithAppId:(NSString *)appId andDelegate:(id)delegate;
this is the init method i'm using...
-(void) login {
// Check if there is a valid session.
#try {
_facebook = [[Facebook alloc] initWithAppId:kAppId andDelegate:self];
}
#catch (NSException *exception) {
NSLog([NSString stringWithFormat:#"%#\n, %#", exception.name, exception.reason]);
}
#finally {
}
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]
&& [defaults objectForKey:#"FBExpirationDateKey"]) {
_facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
_facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
}
if (![_facebook isSessionValid]) {
[_facebook authorize:_permissions];
}else{
[_facebook requestWithGraphPath:#"me" andDelegate:self];
}
}
Try product -> clean. You have probably copied and replaced the Facebook source files outside XCode.
Related
I have used this method for logout facebook in app
- (void)fbDidLogout {
// Remove saved authorization information if it exists
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]) {
[defaults removeObjectForKey:#"FBAccessTokenKey"];
[defaults removeObjectForKey:#"FBExpirationDateKey"];
[defaults synchronize];
}
NSLog(#"logout success!");
}
This method has been invoked, but when I relaunch app the facebook still know about my latest authorization.
My full implementation
I create singleton object for facebook instance.
this is my manager .h
#import <Foundation/Foundation.h>
#import "FBConnect.h"
#interface FacebookManager : NSObject <FBSessionDelegate> {
Facebook *facebook;
}
#property (nonatomic, strong) Facebook *facebook;
+ (FacebookManager *)sharedInstance;
- (void)initWithAppID:(NSString *)appID;
#end
this is singleton facebookmanager .m
#import "FacebookManager.h"
#implementation FacebookManager
#synthesize facebook;
static FacebookManager *_sharedInstance = nil;
+ (FacebookManager *)sharedInstance {
#synchronized(self) {
if (!_sharedInstance) {
_sharedInstance = [[FacebookManager alloc] init];
}
}
return _sharedInstance;
}
- (void)initWithAppID:(NSString *)appID {
facebook = [[Facebook alloc] initWithAppId:appID andDelegate:self];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]
&& [defaults objectForKey:#"FBExpirationDateKey"]) {
facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
}
if (![facebook isSessionValid]) {
[facebook authorize:nil];
}
}
- (void)fbDidLogout {
// Remove saved authorization information if it exists
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]) {
[defaults removeObjectForKey:#"FBAccessTokenKey"];
[defaults removeObjectForKey:#"FBExpirationDateKey"];
[defaults synchronize];
}
NSLog(#"logout success!");
}
#end
in appDelegate I make next:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
fbManager = [FacebookManager sharedInstance];
[fbManager initWithAppID:#"myappid"];
... (some other code)
}
also add this code to app delegate:
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [fbManager.facebook handleOpenURL:url];
}
- (void)fbDidLogin {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[fbManager.facebook accessToken] forKey:#"FBAccessTokenKey"];
[defaults setObject:[fbManager.facebook expirationDate] forKey:#"FBExpirationDateKey"];
[defaults synchronize];
}
In other view controller I call this method for logout:
- (IBAction)logoutFacebook:(id)sender {
FacebookManager *fbManager = [FacebookManager sharedInstance];
[fbManager.facebook logout];
}
also in plist I have add needed url scheme.
Modify the Facebook.m code to this, which works for me.
-(void)logout:(id)delegate {
self.sessionDelegate = delegate;
[_accessToken release];
_accessToken = nil;
[_expirationDate release];
_expirationDate = nil;
NSHTTPCookieStorage *cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];
NSArray *facebookCookies = [cookies cookiesForURL:[NSURL URLWithString:#"http://login.facebook.com"]];
for (NSHTTPCookie* cookie in facebookCookies){
[cookies deleteCookie:cookie];
}
//Adds this one.
for (NSHTTPCookie *_cookie in cookies.cookies){
NSRange domainRange = [[_cookie domain] rangeOfString:#"facebook"];
if(domainRange.length > 0){
[cookies deleteCookie:_cookie];
}
}
if ([self.sessionDelegate respondsToSelector:#selector(fbDidLogout)]){
[_sessionDelegate fbDidLogout];
}
}
What do you mean by "when I relaunch app the facebook still know about my latest authorization" ? Does this mean your FB accesstoken is still valid? You still see the userdefaults values? What exactly?
If you mean that when you trigger the FB login again, it automatically logs you in again, then yes if you have the Facebook APP installed in iOS, the user will have to logout from the FB app manually to switch an account.
If the FB app is not installed, then yes the SSO should prompt the user to login again after initiating a logout.
That seems to be the way the ios sdk api with sso/oauth 2.0 works. I have not been able to logout completely even after clearing the tokens and I have not been able to switch users from the App. Got to go to the FB app to switch users
As a workaround, change the line in Facebook.m and disable the safariAuth
// [self authorizeWithFBAppAuth:YES safariAuth:YES];
[self authorizeWithFBAppAuth:NO safariAuth:NO]
But then you have to type in the username and password everytime you authorize.
In Facebook.m, add the following code to remove cookies at m.facebook.com domain.
- (void)invalidateSession {
...
NSArray* facebookMCookies = [cookies cookiesForURL:
[NSURL URLWithString:#"https://m.facebook.com"]];
for (NSHTTPCookie* cookie in facebookMCookies) {
[cookies deleteCookie:cookie];
}
...
}
I have tried with success this code:
NSFileManager *fm = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
NSString *cachesDirectory = [paths objectAtIndex:0];
NSLog(#"cache dir %#", cachesDirectory);
NSError *error = nil;
for (NSString *file in [fm contentsOfDirectoryAtPath:cachesDirectory error:&error]) {
BOOL success = [fm removeItemAtPath:[NSString stringWithFormat:#"%#/%#", cachesDirectory, file] error:&error];
if (!success || error) {
NSLog(#"Error delete file: %#, %#", file, error);
} else {
NSLog(#"Deleted file: %#", file);
}
}
I use Facebook-ios-sdk in Cocos2d and I got an error on simulator screen
" API Error Code:11
API Error Description: This method is deprecated
Error Message: Display=wap dialogs have been deprecated. You can temporarily enable them by
disable the "july_2012" migration. They will Stop working permanently on July 1, 2012."
Anyone know how to solve this error ?
Thank you.
I followed exactly in the officer web https://developers.facebook.com/docs/mobile/ios/build/
- (void) applicationDidFinishLaunching:(UIApplication*)application
{
facebook = [[Facebook alloc] initWithAppId:#"My ID" andDelegate:self];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]
&& [defaults objectForKey:#"FBExpirationDateKey"]) {
facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
}
if (![facebook isSessionValid]) {
[facebook authorize:nil];
}
}
- (void)fbDidLogin {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[facebook accessToken] forKey:#"FBAccessTokenKey"];
[defaults setObject:[facebook expirationDate] forKey:#"FBExpirationDateKey"];
[defaults synchronize];
}
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [facebook handleOpenURL:url];
}
I'm trying to upload a photo to Facebook. I read a lot of tutorials and examples and still can't get it to work. Many times I get an EXC_BAD_ACCESS in this line:
[_facebook requestWithGraphPath:#"me/photos"
andParams:photosParams
andHttpMethod:#"POST"
andDelegate:self];
Other times nothing appears. I want the user to login only when they click on "share image" in Facebook. Thats why I didn't put the delegate in the appDelegate. Below is my code:
if (_facebook != nil) {
[self fbDidLogin];
}
_publishedImage = img;
_facebook = [[Facebook alloc] initWithAppId:#"235694579858240" andDelegate:self];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]
&& [defaults objectForKey:#"FBExpirationDateKey"])
{
_facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
_facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
}
if (![_facebook isSessionValid])
{
NSArray* permissions = [[NSArray alloc] initWithObjects:
#"offline_access", #"publish_stream", #"publish_actions", #"photo_upload", nil];
[_facebook authorize:permissions];
}
UIImage *imgSource = img;
NSString *strMessage = #"This is the photo caption";
NSMutableDictionary* photosParams = [NSMutableDictionary dictionaryWithObjectsAndKeys:
imgSource,#"source",
strMessage,#"message",
nil];
[_facebook requestWithGraphPath:#"me/photos"
andParams:photosParams
andHttpMethod:#"POST"
andDelegate:self];
My ViewController has these delegates:
<UIImagePickerControllerDelegate, UIActionSheetDelegate, UIGestureRecognizerDelegate, MFMailComposeViewControllerDelegate, FBSessionDelegate, FBDialogDelegate, FBRequestDelegate>
Edit: Are there any plugins to share photos easily in Facebook, G+, and everything else easily?
Instead of using the graph why don't you try:
if ([fbAppDelegate.facebook isSessionValid]) {
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys: #"http://hd.ipad-wallpapers.fr/thumbs/wooden_apple_logo_4-t1.jpg // but could also use UIImage", #"picture", nil]; // you don't
[fbAppDelegate.facebook dialog:#"feed" andParams:params andDelegate:self];
}
// this is what I do .....
This is my first post on StackOverflow but i use this for a long time...
My problem is basically simple, I want to share the content of a UITextView(mShareText) on the user's wall without prompting any Dialog. Basically, the user has to fill its message on the UITextView and then click on a "post" UIButton. Simple isn't it ?
I've downloaded the Facebook iOS SDK and copied it into my project. I've included "FBConnect.h" and "Facebook.h" on my controller's header file and created a var : Facebook* facebook;, the controller also implements the following delegates : FBSessionDelegate, FBRequestDelegate.
On my controller's implementation file, I've a IBAction triggered when the user clicks on the "post" UIButton.
- (IBAction)onShareByFBPressed:(id)sender {
NSLog(#"onShareByFBPressed");
// Facebook settings
NSMutableDictionary* params = [[NSMutableDictionary alloc] initWithCapacity:3];
[params setObject:mShareText.text forKey:#"message"];
[params setObject:#"http://www.example.com" forKey:#"link"];
[params setObject:#"https://www.example.com/myImg.jpg" forKey:#"picture"];
[facebook requestWithGraphPath:#"me/feed"
andParams:params
andHttpMethod:#"POST"
andDelegate:self];
[params release];
}
I've implemented this on my viewdidload:
- (void)viewDidLoad
{
NSLog(#"viewDidLoad");
[super viewDidLoad];
(...)
// Test facebook
facebook = [[Facebook alloc] initWithAppId:#"XXXXXXXXXXX" andDelegate:self];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"] && [defaults objectForKey:#"FBExpirationDateKey"]) {
facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
NSLog(#"AccessToken: %# ExpirationDate: %#", facebook.accessToken, facebook.expirationDate);
}else{
NSLog(#"No AccessToken or ExpirationDate");
}
if (![facebook isSessionValid]) {
[facebook authorize:[NSArray arrayWithObjects:#"publish_stream", nil]];
}
}
Here are different methods I had to implement due to the delegates :
// Pre 4.2 support
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [facebook handleOpenURL:url];
}
// For 4.2+ support
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [facebook handleOpenURL:url];
}
- (void)fbDidLogin {
NSLog(#"fbDidLogin");
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[facebook accessToken] forKey:#"FBAccessTokenKey"];
[defaults setObject:[facebook expirationDate] forKey:#"FBExpirationDateKey"];
[defaults synchronize];
}
- (void)fbSessionInvalidated{
NSLog(#"fbSessionInvalidated");
}
- (void)fbDidLogout{
NSLog(#"fbDidLogout");
}
- (void)fbDidExtendToken:(NSString*)accessToken expiresAt:(NSDate*)expiresAt{
NSLog(#"fbDidExtendToken");
}
- (void)fbDidNotLogin:(BOOL)cancelled{
NSLog(#"fbDidNotLogin");
}
- (void)request:(FBRequest *)request didReceiveResponse:(NSURLResponse *)response{
NSLog(#"didReceiveResponse: %#", response);
}
- (void)request:(FBRequest *)request didFailWithError:(NSError *)error{
NSLog(#"didFailWithError: %#", [error description]);
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Share on Facebook"
message:#"An error occured"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
}
Unfortunatelly, everytime I try to trigger my "onShareByFBPressed" method, I got the following error on the log:
2012-02-17 13:02:06.401 Mixtapes[935:707] didFailWithError: Error Domain=facebookErrDomain Code=10000 "The operation couldn’t be completed. (facebookErrDomain error 10000.)" UserInfo=0x1f6f60 {error=<CFBasicHash 0x1f6660 [0x3ec6d630]>{type = mutable dict, count = 3,
entries =>
2 : <CFString 0x1f64a0 [0x3ec6d630]>{contents = "type"} = <CFString 0x1f6b10 [0x3ec6d630]>{contents = "OAuthException"}
3 : <CFString 0x1f6ab0 [0x3ec6d630]>{contents = "message"} = <CFString 0x1f6a10 [0x3ec6d630]>{contents = "An active access token must be used to query information about the current user."}
6 : <CFString 0x1f6e60 [0x3ec6d630]>{contents = "code"} = 2500
}
}
Can anyone tell me what's wrong with my implementation ??
Thanks a lot.
Best regards.
EDIT:
#Adil
Thanks for your proposal. It actually works somethimes.
Sometimes i got the following error :
didFailWithError: Error Domain=facebookErrDomain Code=10000 "The operation couldn’t be completed. (facebookErrDomain error 10000.)" UserInfo=0xa17e0d0 {error=<CFBasicHash 0xa171e10 [0x3ec6d630]>{type = mutable dict, count = 3,
entries =>
2 : <CFString 0xa179d10 [0x3ec6d630]>{contents = "type"} = <CFString 0xa17a280 [0x3ec6d630]>{contents = "OAuthException"}
3 : <CFString 0x6127710 [0x3ec6d630]>{contents = "message"} = <CFString 0xa178db0 [0x3ec6d630]>{contents = "Error validating access token: Session is invalid. This could be because the application was uninstalled after the session was created."}
6 : <CFString 0xa17e020 [0x3ec6d630]>{contents = "code"} = 190
}
}
Thanks for your help
The problem here is:
The facebook which is authororized is AppDelegate's facebook object, not your ViewController's facebook.
Solution:
Instead allocating new Facebook object for every ViewController or where you needed.
you should make a property of your application delegate. like this:
in appDelegate.h
#property(nonatomic, retain) Facebook *facebook;
and synthesize it in appDelegate.m and now put initialization of Facebook in
- (BOOL)application:(UIApplication *)ap didFinishLaunchingWithOptions:(NSDictionary *)op
{
// other code....
facebook = [[Facebook alloc] initWithAppId:#"XXXXXXXXXXX" andDelegate:self];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"] && [defaults objectForKey:#"FBExpirationDateKey"]) {
facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
NSLog(#"AccessToken: %# ExpirationDate: %#", facebook.accessToken, facebook.expirationDate);
}else{
NSLog(#"No AccessToken or ExpirationDate");
}
return true;
}
now where do you want to use it, write something like this:
- (void)viewDidLoad
{
[super viewDidLoad];
//...
AppDelegate *app = (AppDelegate *)[[UIApplication sharedApplication] delegate];
facebook = app.facebook;
if (![facebook isSessionValid]) {
[facebook authorize:[NSArray arrayWithObjects:#"publish_stream", nil]];
}
}
Try to deauthorize your application and then authorize it again
I am trying to integrate Facebook to my iOS app with ARC. To use FB SDK, I have disabled ARC with "-fno-objc-arc" for those files. However, it still have EXC_BAD_ACCESS error and I need to change
#property(nonatomic, assign) id<FBSessionDelegate> sessionDelegate;
to
#property(nonatomic, retain) id<FBSessionDelegate> sessionDelegate;
The login is working now but the UITextView is not updated after login
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"]
&& [defaults objectForKey:#"FBExpirationDateKey"]) {
[delegate facebook].accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
[delegate facebook].expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
[defaults synchronize];
}
if (![[delegate facebook] isSessionValid])
{
[[delegate facebook] authorize:nil];
}
}
- (void)fbDidLogin
{
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[[delegate facebook] accessToken] forKey:#"FBAccessTokenKey"];
[defaults setObject:[[delegate facebook] expirationDate] forKey:#"FBExpirationDateKey"];
[defaults synchronize];
[[delegate facebook] requestWithGraphPath:#"me" andDelegate:self];
}
- (void)request:(FBRequest *)request didLoad:(id)result
{
if ([result isKindOfClass:[NSArray class]]) {
result = [result objectAtIndex:0];
}
if ([result objectForKey:#"name"]) {
self.uitextview.text = [result objectForKey:#"name"];
}
}
I have checked that "[result objectForKey:#"name"]" will return a result but "self.uitextview" is not recognized.
How do I update a UITextView after successful login?
Found out that the ViewController init in Appdelegate can't be used as shown in Facebook Hackbook sample.
Replace with the following declaration:
UITabBarController *tabBarController = (UITabBarController *) self.window.rootViewController;
ViewController *viewcontroller = [[tabBarController viewControllers] objectAtIndex:4];
http://www.raywenderlich.com/5138/beginning-storyboards-in-ios-5-part-1