Google Plus api for iOS 获取好友列表

Question

我想在 iOS 应用中从 Google+ 获取朋友（人物）列表。

我正在使用链接中提供的 Google+ api 教程 https://developers.google.com/+/mobile/ios/getting-started

我在 Google+ 开发者控制台上创建了新项目，链接是

https://console.developers.google.com/project

在 -(void)getPeopleInfo 中出现以下错误。

[lvl=3] __31-[ViewController getPeopleInfo]_block_invoke() 错误：错误 Domain=com.google.GTLJSONRPCErrorDomain Code=401“操作无法完成。（无效凭据）”UserInfo=0x14d89340 {error=凭据无效，GTLStructuredError=GTLErrorObject 0x14d855e0：{消息：“无效凭据”代码：401 数据：[1]}，NSLocalizedFailureReason=（无效凭据）} 2014-03-13 12:40:21.026 GPlusDemo[636/0x3d35718c] [lvl=3] __31-[ViewController getPeopleInfo]_block_invoke() 错误：错误 Domain=com.google.GTLJSONRPCErrorDomain Code=401“操作不能已完成。（无效凭据）“UserInfo=0x14d85f90 {error=Invalid Credentials, GTLStructuredError=GTLErrorObject 0x14d85ba0: {message:"Invalid Credentials" code:401 data:[1]}, NSLocalizedFailureReason=(Invalid Credentials)}

我在ViewController.m

中写了如下代码

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.


    GPPSignIn *signIn = [GPPSignIn sharedInstance];
    signIn.shouldFetchGooglePlusUser = YES;
    //signIn.shouldFetchGoogleUserEmail = YES;  // Uncomment to get the user's email

    // You previously set kClientId in the "Initialize the Google+ client" step
    signIn.clientID = kClientId;

    // Uncomment one of these two statements for the scope you chose in the previous step
    signIn.scopes = @[ kGTLAuthScopePlusLogin];  // "https://www.googleapis.com/auth/plus.login" scope
    signIn.scopes = @[ @"profile" ];            // "profile" scope

    // Optional: declare signIn.actions, see "app activities"
    signIn.delegate = self;

    [signIn trySilentAuthentication];

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


-(void)refreshInterfaceBasedOnSignIn
{
    if ([[GPPSignIn sharedInstance] authentication]) {
        // The user is signed in.
        NSLog(@"Login");
        self.signInButton.hidden = YES;
        // Perform other actions here, such as showing a sign-out button

        [self getPeopleInfo];
    } else {
        self.signInButton.hidden = NO;
        // Perform other actions here
    }
}

- (void)finishedWithAuth: (GTMOAuth2Authentication *)auth
                   error: (NSError *) error
{
    NSLog(@"Received error %@ and auth object %@",error, auth);
    if (error) {
        // Do some error handling here.
    } else {
        [self refreshInterfaceBasedOnSignIn];
    }
}

- (void)signOut {
    [[GPPSignIn sharedInstance] signOut];
}


- (void)disconnect {
    [[GPPSignIn sharedInstance] disconnect];
}

- (void)didDisconnectWithError:(NSError *)error {
    if (error) {
        NSLog(@"Received error %@", error);
    } else {
        // The user is signed out and disconnected.
        // Clean up user data as specified by the Google+ terms.
    }
}

-(void)getPeopleInfo
{
    GTLServicePlus* plusService = [[GTLServicePlus alloc] init];
    plusService.retryEnabled = YES;

    [plusService setAuthorizer:[GPPSignIn sharedInstance].authentication];


    GTLQueryPlus *query =
    [GTLQueryPlus queryForPeopleListWithUserId:@"me"
                                    collection:kGTLPlusCollectionVisible];
    [plusService executeQuery:query
            completionHandler:^(GTLServiceTicket *ticket,
                                GTLPlusPeopleFeed *peopleFeed,
                                NSError *error) {
                if (error) {
                    GTMLoggerError(@"Error: %@", error);
                } else {
                    // Get an array of people from GTLPlusPeopleFeed
                    NSArray* peopleList = [peopleFeed.items mutableCopy];

                    NSLog(@"peopleList:%@", peopleList);
                }
            }];
}

Answer 1

根据我的经验，Google+ SDK 目前没有任何获取好友列表的方法。

建议使用 Google Contacts API 来获取联系人。从该 API 获取的联系人可能在 Google+ 上不活跃。所以它是混合列表。

所以，等待 Google 的更新。

Answer 2

登录成功后调用以下方法，对我来说，我使用以下方法获取好友列表

-(void)finishedWithAuth: (GTMOAuth2Authentication *)auth
                   error: (NSError *) error {


GTLServicePlus* plusService = [[GTLServicePlus alloc] init];

    plusService.retryEnabled = YES;

    [plusService setAuthorizer:[GPPSignIn sharedInstance].authentication];
    GTLQueryPlus *query =
    [GTLQueryPlus queryForPeopleListWithUserId:@"me"
                                    collection:kGTLPlusCollectionVisible];
    [plusService executeQuery:query
            completionHandler:^(GTLServiceTicket *ticket,
                                GTLPlusPeopleFeed *peopleFeed,
                                NSError *error) {
                if (error) {
                    GTMLoggerError(@"Error: %@", error);
                } else {
                    // Get an array of people from GTLPlusPeopleFeed
                    NSArray* peopleList = peopleFeed.items;
                    NSLog(@"peopleList %@ ",peopleList);

                }
            }];

}

Answer 3

我们有办法获取 google plus 可见的朋友信息。请看一下描述，如果对您来说不够清楚，我会提供更多描述。

GTMOAuth2Authentication *auth;

/*That you will get when you login by your google plus account. So I am considering that you already have it.*/

NSMutableArray  *arrFriends  = [NSMutableArray new];

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^
{
    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://www.googleapis.com/plus/v1/people/%@/people/visible?orderBy=alphabetical&access_token=%@",@"your_user_id",auth.accessToken]];

    /*When you login via Google plus and fetch your profile information, you will get your user id.*/

    ASIHTTPRequest *request = [[ASIHTTPRequest alloc] initWithURL:url];
    [request startSynchronous];

    if(LOGS_ON) NSLog(@"GooglePlusConnect-->getchGooglePlusFriends-->responseString = %@",request.responseString);
});

如果对您来说不够清楚，请告诉我，然后我将提供更多描述。

Answer 4

您好，我也遇到了同样的错误，但已解决。问题在于设置范围。

将范围设置为#define kGTLAuthScopePlusLogin @"https://www.googleapis.com/auth/plus.login"

- (void)viewDidLoad
{
[super viewDidLoad];

GPPSignIn *signInG = [GPPSignIn sharedInstance];
signInG.shouldFetchGooglePlusUser  = YES;
signInG.shouldFetchGoogleUserEmail = YES;
signInG.clientID = kClientId;
signInG.scopes   = @ [kGTLAuthScopePlusLogin];
signInG.delegate = self;
[signInG trySilentAuthentication];
}

它将获取朋友的详细信息，例如姓名、图片网址，但不获取电子邮件地址。要获取电子邮件地址，请尝试使用 Contact API。 iOS 有 NSXMLParser，联系 api 代码在 JS、java 中给出，你可以使用它并获取详细信息。

Answer 5

GTLServicePlus* plusService = [[GTLServicePlus alloc] init];
plusService.retryEnabled = YES;

[plusService setAuthorizer:[GPPSignIn sharedInstance].authentication];
GTLQueryPlus *query =
[GTLQueryPlus queryForPeopleListWithUserId:@"me"
                                collection:kGTLPlusCollectionVisible];
[plusService executeQuery:query
        completionHandler:^(GTLServiceTicket *ticket,
                            GTLPlusPeopleFeed *peopleFeed,
                            NSError *error) {
            if (error) {
                GTMLoggerError(@"Error: %@", error);
            } else {
                // Get an array of people from GTLPlusPeopleFeed
                NSArray* peopleList = peopleFeed.items;
                NSLog(@"peopleList %@ ",peopleList.description);
                for (NSArray *dict in peopleFeed.items) {
                    NSString *strID=(NSString*)((GTLPlusPerson*)dict).identifier;
                    NSLog(@"strID %@",strID);
                }


            }
        }];

Answer 6

您好，我也面临同样的问题。由于范围而发生此问题。 在您的代码中，您已经覆盖了范围。

signIn.scopes = @[ kGTLAuthScopePlusLogin];  

与

signIn.scopes = @[ @"profile" ];            // "profile" scope

所以，你必须通过简单的方式改变你的范围

signIn.scopes = @[ kGTLAuthScopePlusLogin]; 

或者

signIn.scopes = @[ kGTLAuthScopePlusLogin,@"profile"];