我正在尝试通过我的parse.com应用程序中的Facebook登录用户。我已经有了所有的id和appdelegate方法。
我在故事板中创建了一个视图，并将其设为facebook登录按钮，然后我将其作为IBAction连接到我的.h文件。
我的代码：
- (IBAction)fblogin:(FBSDKLoginButton *)sender {
[PFFacebookUtils logInInBackgroundWithReadPermissions:@[@"public_profile", @"email"] block:^(PFUser *user, NSError *error) {
if (error) {
// NSLog(@"Uh oh. The user cancelled the Facebook login.");
UIAlertView *alertVeiw = [[UIAlertView alloc] initWithTitle:@"Sorry" message:[error.userInfo objectForKey:@"error"] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alertVeiw show];
} else if (!user) {
UIAlertView *alertVeiw = [[UIAlertView alloc] initWithTitle:@"Sorry" message:@"You cancelled Login, try again!" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alertVeiw show];
}else {
// NSLog(@"User logged in through Facebook!");
// [self dismissViewControllerAnimated:YES completion:NULL];
FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields": @"first_name, last_name, email, public_profile"}];
[request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error)
{
if (error)
{
UIAlertView *alertVeiw = [[UIAlertView alloc] initWithTitle:@"Sorry" message:[error.userInfo objectForKey:@"error"] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alertVeiw show];
} else if ([[error userInfo][@"error"][@"type"] isEqualToString: @"OAuthException"]) { // Since the request failed, we can check if it was due to an invalid session
// NSLog(@"The facebook session was invalidated");
[PFFacebookUtils unlinkUserInBackground:[PFUser currentUser]];
}
else {
NSDictionary *userData = (NSDictionary *)result;
// [self requestFacebookUser:user];
NSString *name = userData[@"name"];
NSString *email = userData[@"email"];
user.username = name;
user.email = email;
[user saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error)
{
if (error)
{
UIAlertView *alertVeiw = [[UIAlertView alloc] initWithTitle:@"Sorry" message:[error.userInfo objectForKey:@"error"] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alertVeiw show];
}
else {
// [self dismissViewControllerAnimated:NO completion:nil];
//[self.navigationController popToRootViewControllerAnimated:NO];
[self performSegueWithIdentifier:@"inbox" sender:self];
}
}];
}
}];
}
}];
}
当我按登录facebook按钮然后我们登录然后没有任何反应时，才会打开faccebook网页。
请帮我逐步正确执行facebook登录。
编辑：
app delegate：
[PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:launchOptions];
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [[FBSDKApplicationDelegate sharedInstance] application:application
openURL:url
sourceApplication:sourceApplication
annotation:annotation];
}
applicationWillEnterForeGround:
[FBSDKAppEvents activateApp];
然后：
与你的（SanitLee）答案一起，我有这些方法：
- (void)loginViewFetchedUserInfo:(FBSDKLoginManager *)loginView
user:(FBSDKProfile*)user {
}
-(void)loginButton:(FBSDKLoginButton *)loginButton didCompleteWithResult:(FBSDKLoginManagerLoginResult *)result error:(NSError *)error{
// [self performSegueWithIdentifier:@"inbox" sender:self];
}
-(void)loginButtonDidLogOut:(FBSDKLoginButton *)loginButton{
}
-(void)loginButtonClicked{
}
我的视图不在窗口层次结构中也会出现此错误！
答案 0 :(得分：0)
这是我如何做到的，它对我有用。 首先，在你的m文件中导入：
#import <ParseFacebookUtils/PFFacebookUtils.h>//fb login for parse
然后以下代码应该做你想要的：
- (IBAction)loginButtonTouchHandler:(id)sender {
NSArray *permissionsArray = @[ @"user_about_me", @"user_relationships", @"user_birthday", @"user_location"];
[MBProgressHUD showHUDAddedTo:self.view animated:YES];
[PFFacebookUtils logInWithPermissions:permissionsArray block:^(PFUser *user, NSError *error) {
if (!user) {
NSString *errorMessage = nil;
if (!error) {
NSLog(@"Uh oh. The user cancelled the Facebook login.");
errorMessage = NSLocalizedString(@"Uh oh. The user cancelled the Facebook login.", nil);
} else {
NSLog(@"Uh oh. An error occurred: %@", error);
errorMessage = [error localizedDescription];
}
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Log In Error", nil) message:errorMessage delegate:nil cancelButtonTitle:nil otherButtonTitles:NSLocalizedString(@"Dismiss", nil), nil];
[MBProgressHUD hideHUDForView:self.view animated:YES];
[alert show];
} else {
if (user.isNew) {
NSLog(@"User with facebook signed up and logged in!");
[self _loadData];
} else {
NSLog(@"User with facebook logged in!");
}
[MBProgressHUD hideHUDForView:self.view animated:YES];
[self _presentNextViewControllerAnimated:YES];
}
}];
}
- (void)_presentNextViewControllerAnimated:(BOOL)animated {
PAWWallViewController *wallViewController = [[PAWWallViewController alloc] initWithNibName:nil bundle:nil];
[(UINavigationController *)self.presentingViewController pushViewController:wallViewController animated:NO];
[self.presentingViewController dismissModalViewControllerAnimated:YES];
}
- (void)_loadData {
FBRequest *request = [FBRequest requestForMe];
[request startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error) {
PFUser *user = [PFUser currentUser];
NSDictionary *userData = (NSDictionary *)result;
NSString *facebookID = userData[@"id"];
NSString *name = userData[@"name"];
NSString *email = userData[@"email"];
NSString *location = userData[@"location"][@"name"];
NSString *gender = userData[@"gender"];
NSString *birthday = userData[@"birthday"];
NSString *relationship = userData[@"relationship_status"];
NSString *facebookLink = [NSString stringWithFormat:@"Facebook.com/%@", facebookID];
NSURL *pictureURL = [NSURL URLWithString:[NSString stringWithFormat:@"https://graph.facebook.com/%@/picture?type=large&return_ssl_resources=1", facebookID]];
NSLog(@"facebookID --> %@", facebookID);
NSLog(@"name --> %@", name);
NSLog(@"email --> %@", email);
//for profile image
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:pictureURL];
// Run network request asynchronously
[NSURLConnection sendAsynchronousRequest:urlRequest queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
if (connectionError == nil && data != nil) {
PFFile *userImageFile = [PFFile fileWithName:@"userImage.jpg" data:data];
if (userImageFile) [user setObject:userImageFile forKey:kPAWParseUserImageKey];
}
[user setObject:facebookID forKey:kPAWParseUsernameKey]; //initially use fb id as username to avoid duplication
[user setObject:name forKey:kPAWParseRealnameKey];
[user setObject:facebookLink forKey:kPAWParseFacebookKey];
[user saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (!error) {
if (succeeded) {
NSLog(@"fb user saved successfully");
}
} else {
NSLog(@"fb user saved unsuccessfully");
}
}];
}];
} else if ([[[[error userInfo] objectForKey:@"error"] objectForKey:@"type"]
isEqualToString: @"OAuthException"]) {
NSLog(@"The facebook session was invalidated");
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Log out of Spotpost?", nil) message:nil delegate:self cancelButtonTitle:NSLocalizedString(@"Log out", nil) otherButtonTitles:NSLocalizedString(@"Cancel", nil), nil];
[alertView show];
} else {
NSLog(@"Some other error: %@", error);
}
}];
}
以下是我在app delegate中配置的方式：
#import <ParseFacebookUtils/PFFacebookUtils.h> //fb login for parse
....
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
...
[PFFacebookUtils initializeFacebook]; //fb login for parse
return YES;
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
....
[FBAppCall handleDidBecomeActiveWithSession:[PFFacebookUtils session]]; //fb login for parse
}
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation {
return [FBAppCall handleOpenURL:url
sourceApplication:sourceApplication
withSession:[PFFacebookUtils session]];
}
- (void)applicationWillTerminate:(UIApplication *)application {
[[PFFacebookUtils session] close];
}