ios Facebook SDK 3.0：如何接收用户的电子邮件？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/11843968/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Facebook SDK 3.0: how to receive user's e-mail?
提问by znq
In the "old" FB iOS SDK I could receive user information via the following:
在“旧”FB iOS SDK 中，我可以通过以下方式接收用户信息：
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"SELECT uid, name, email, pic FROM user WHERE uid=me()", @"query",
nil];
JBFacebookManager *fbManager = [JBFacebookManager getInstance];
fbManager.requestDelegate = self;
[fbManager.facebook requestWithMethodName:@"fql.query"
andParams:params
andHttpMethod:@"POST"
andDelegate:self];
How can I do this with the new FB iOS SDK 3.0? Do I need to use FBRequestor FBOpenGraphActionor FBGraphObjector a combination of those or something completely different?
如何使用新的 FB iOS SDK 3.0 做到这一点？我是否需要使用FBRequest或FBOpenGraphAction或FBGraphObject或这些或完全不同的东西的组合？
回答by znq
if (FBSession.activeSession.isOpen) {
[[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {
if (!error) {
self.nameLabel.text = user.name;
self.emailLabel.text = [user objectForKey:@"email"];
}
}];
}
Because FBGraphUserdoesn't have an email @property, we can't access the information like with the name (dot-syntax), however the NSDictionary still has the email kv-pair and we can access it like we would do with a normal NSDictionary.
因为FBGraphUser没有 email @property，我们不能像使用名称（点语法）那样访问信息，但是 NSDictionary 仍然有 email kv-pair，我们可以像使用普通 NSDictionary 一样访问它。
Don't forget to ask for the email permission though:
不要忘记请求电子邮件许可：
NSArray *permissions = [[NSArray alloc] initWithObjects:@"email", nil];
[FBSession sessionOpenWithPermissions:permissions completionHandler:
^(FBSession *session, FBSessionState state, NSError *error) {
[self facebookSessionStateChanged:session state:state error:error];
}];
回答by Zorayr
Once you have access to (id<FBGraphUser>)user, you could simply use, user[@"email"].
一旦您可以访问(id<FBGraphUser>)user，您就可以简单地使用 , user[@"email"]。
回答by jasondinh
Did you read the source code of the 3.0 SDK? There is a method that I think is identical:
你读过3.0 SDK的源代码了吗？有一种方法我认为是相同的：
- (FBRequest*)requestWithMethodName:(NSString *)methodName
andParams:(NSMutableDictionary *)params
andHttpMethod:(NSString *)httpMethod
andDelegate:(id <FBRequestDelegate>)delegate;
回答by Vineesh TP
from this we can get facebook user's basic info and email id.
从中我们可以获得facebook用户的基本信息和电子邮件ID。
[FBSession openActiveSessionWithReadPermissions:@[@"basic_info",@"email"] allowLoginUI:YES completionHandler:^(FBSession *session,FBSessionState status,NSError *error){
if(error)
{
NSLog(@"Facebook Error : %@",error.localizedDescription);
}
else{
}
// Respond to session state changes,
// ex: updating the view
}];
回答by Ashish
The easiest method for getting the info after logging in is :
登录后获取信息的最简单方法是：
-(IBAction)loginWithFacebook:(id)sender{
FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
[login
logInWithReadPermissions: @[@"public_profile",@"email"]
fromViewController:self
handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {
if (error) {
NSLog(@"Process error");
} else if (result.isCancelled) {
NSLog(@"Cancelled");
} else {
NSLog(@"Logged in");
[self getFacebookProfileInfos];
}
}];
}
-(void)getFacebookProfileInfos {
NSDictionary *parameters = @ {@"fields": @"id, name, first_name, last_name, picture.type(large), email"};
if ([FBSDKAccessToken currentAccessToken]) {
[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:parameters]
startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
if (!error) {
NSLog(@"fetched user:%@", result);
}
}];
}
}
}
You will get all the info the result.
您将获得结果的所有信息。
