登录用户通过Facebook iOS Parse.com [英] Login user through Facebook iOS Parse.com
本文介绍了登录用户通过Facebook iOS Parse.com的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在故事板中创建了一个视图，并将其设置为Facebook登录按钮，然后将其连接到我的。 h文件作为IBAction。
我的代码：
- （ IBAction）fblogin：（FBSDKLoginButton *）sender {
[PFFacebookUtils logInInBackgroundWithReadPermissions：@ [@public_profile，@email] block：^（PFUser * user，NSError * error）{
if（error ）{
// NSLog（@呃哦，用户取消了Facebook登录。）;
UIAlertView * alertVeiw = [[UIAlertView alloc] initWithTitle：@Sorrymessage：[error.userInfo objectForKey：@error] delegate：nil cancelButtonTitle：@OkotherButtonTitles：nil];
[alertVeiw show];
} else if（！user）{
UIAlertView * alertVeiw = [[UIAlertView alloc] initWithTitle：@对不起消息：@您已经取消登录，再试一次！委托：nil cancelButtonTitle：@OkotherButtonTitles：nil];
[alertVeiw show];
} else {
// NSLog（@用户通过Facebook登录！）;
// [self dismissViewControllerAnimated：YES completion：NULL];
FBSDKGraphRequest * request = [[FBSDKGraphRequest alloc] initWithGraphPath：@me参数：@ {@fields：@first_name，last_name，email，public_profile}]
[request startWithCompletionHandler：^（FBSDKGraphRequestConnection * connection，id result，NSError * error）
{
if（error）
{
UIAlertView * alertVeiw = [[UIAlertView alloc] initWithTitle：@Sorrymessage：[error.userInfo objectForKey：@error] delegate：nil cancelButtonTitle：@OkotherButtonTitles：nil];
[alertVeiw show];
} else if（[[error userInfo] [@error] [@type] isEqualToString：@OAuthException]）{//由于请求失败，我们可以检查是由于无效会话
// NSLog（@Facebook会话无效）;
[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;
[用户saveInBackgroundWithBlock：^（BOOL成功，NSError *错误）
{
如果（错误）
{
UIAlertView * alertVeiw = [[UIAlertView alloc] initWithTitle： @对不起消息：[error.userInfo objectForKey：@error] delegate：nil cancelButtonTitle：@OkotherButtonTitles：nil];
[alertVeiw show];
}
else {
// [self dismissViewControllerAnimated：NO completion：nil];
// [self.navigationController popToRootViewControllerAnimated：NO];
[self performSegueWithIdentifier：@inboxsender：self];
}
}];
}
}];
}
}];
}
当我按登录Facebook按钮打开faccebook网页，然后我们登录那么什么也没有。
请帮助我正确执行Facebook登录。
编辑：
app delegate：
[PFFacebookUtils initializeFacebookWithApplicationLaunchOptions：launchOptions];
- （BOOL）应用程序：（UIApplication *）应用程序openURL：（NSURL *）url sourceApplication：（NSString *）sourceApplication注释：（id）注释{
return [ [FBSDKApplicationDelegate sharedInstance]应用程序：应用程序
openURL：url
sourceApplication：sourceApplication
注释：注释];
}
applicationWillEnterForeGround：
[FBSDKAppEvents activateApp];
然后：
SanitLee）答案我有这些方法：
- （void）loginViewFetchedUserInfo：（FBSDKLoginManager *）loginView
user :( FBSDKProfile *）user {
}
- （void）loginButton：（FBSDKLoginButton *）loginButton didCompleteWithResult：（FBSDKLoginManagerLoginResult *）结果错误：（NSError *）错误{
// [self performSegueWithIdentifier：@inboxsender：self];
}
- （void）loginButtonDidLogOut：（FBSDKLoginButton *）loginButton {
}
- （void）loginButtonClicked {
}
我也得到这个错误，其视图不在窗口层次结构中！ >
解决方案
这是我做的，它适用于我。
首先，在m文件中导入：
#import< ParseFacebookUtils / PFFacebookUtils.h> // fb登录解析
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（@呃哦，用户取消了Facebook登录。
errorMessage = NSLocalizedString（@呃哦，用户取消了Facebook登录，nil）;
} else {
NSLog（@呃哦发生错误：％@，错误）;
errorMessage = [error localizedDescription];
}
UIAlertView * alert = [[UIAlertView alloc] initWithTitle：NSLocalizedString（@登录错误，nil）消息：errorMessage委托：nil cancelButtonTitle：nil otherButtonTitles：NSLocalizedString（@Dismiss，nil ），nil];
[MBProgressHUD hideHUDForView：self.view animated：YES];
[alert show];
} else {
if（user.isNew）{
NSLog（@用户注册并登录！）;
[self _loadData];
} else {
NSLog（@用户登录！）;
}
[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 - >％@，电子邮件）;
// for profile image
NSURLRequest * urlRequest = [NSURLRequest requestWithURL：pictureURL];
//异步运行网络请求
[NSURLConnection sendAsynchronousRequest：urlRequest queue：[NSOperationQueue mainQueue] completionHandler：^（NSURLResponse * response，NSData * data，NSError * connectionError）{
if（connectionError = = nil&& data！= nil）{
PFFile * userImageFile = [PFFile fileWithName：@userImage.jpgdata：data];
if（userImageFile）[user setObject：userImageFile forKey：kPAWParseUserImageKey];
}
[user setObject：facebookID forKey：kPAWParseUsernameKey]; //最初使用fb id作为用户名，以避免重复
[user setObject：name forKey：kPAWParseRealnameKey];
[user setObject：facebookLink forKey：kPAWParseFacebookKey];
[user saveInBackgroundWithBlock：^（BOOL succeeded，NSError * error）{
if（！error）{
if（succeeded）{
NSLog（@fb用户保存成功）;
}
} else {
NSLog（@fb用户保存失败）;
}
}];
}];
} else if（[[[error userInfo] objectForKey：@error] objectForKey：@type]
isEqualToString：@OAuthException]）{
NSLog（@Facebook会话无效）;
UIAlertView * alertView = [[UIAlertView alloc] initWithTitle：NSLocalizedString（@注销Spotpost？，nil）消息：nil delegate：self cancelButtonTitle：NSLocalizedString（@注销，nil） otherButtonTitles：NSLocalizedString（@Cancel，nil），nil];
[alertView show];
} else {
NSLog（@其他一些错误：％@，错误）;
}
}];
}
这里是我如何在app代理中配置：
#import< ParseFacebookUtils / PFFacebookUtils.h> // fb login for parse
....
- （BOOL）应用程序：（UIApplication *）应用程序didFinishLaunchingWithOptions :( NSDictionary *）launchOptions {
...
[PFFacebookUtils initializeFacebook]; // fb login for parse
return YES;
}
- （void）applicationDidBecomeActive：（UIApplication *）application {
....
[FBAppCall handleDidBecomeActiveWithSession：[PFFacebookUtils session]]; // fb login for parse
}
- （BOOL）应用程序：（UIApplication *）应用程序
openURL：（NSURL *）url
sourceApplication：（NSString * ）sourceApplication
注释：（id）注释{
return [FBAppCall handleOpenURL：url
sourceApplication：sourceApplication
withSession：[PFFacebookUtils session]];
}
- （void）applicationWillTerminate :( UIApplication *）应用程序{
[[PFFacebookUtils session] close];
}
I am trying to login a user through facebook in my parse.com app. I have all the ids and appdelegate methods in place.
I have created a view in the storyboard and made that a facebook login button and then i have connected it to my .h file as a IBAction.
my code:
- (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];
}
}];
}
}];
}
}];
}
The faccebook web page opens when i press login facebook button then we sign in and then nothing happens.
Please help me implement facebook login step by step correctly.
EDIT:
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];
then:
along with your(SanitLee) answer i have these methods:
- (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{
}
i also get this error on whose view is not in the window hierarchy!
解决方案
Here's how I did it and it works for me. Firstly, import this in your m file:
#import <ParseFacebookUtils/PFFacebookUtils.h>//fb login for parse
Then the following codes should do what you want:
- (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);
}
}];
}
And here is how I did config in app delegate:
#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];
}
这篇关于登录用户通过Facebook iOS Parse.com的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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