LinkedIn集成到objective-c iOS，无需安装LinkedIn App

Question

将LinkedIn应用程序集成到我的iOS（Objective-c）项目中它在安装LinkedIn时运行良好，否则它会显示一个警报安装LinkedIn应用程序但是现在我想处理如果没有安装LinkedIn应用程序，如果任何人有想法给我答案，请检查下面的代码以了解。

NSArray *permissions = [NSArray arrayWithObjects:LISDK_BASIC_PROFILE_PERMISSION, LISDK_EMAILADDRESS_PERMISSION, nil];


[LISDKSessionManager createSessionWithAuth:permissions state:nil showGoToAppStoreDialog:YES successBlock:^(NSString *returnState){

            NSLog(@"%s","success called!");

            LISDKSession *session = [[LISDKSessionManager sharedInstance] session];
[[LISDKAPIHelper sharedInstance] getRequest:[NSString stringWithFormat:@"%@/people/~:(id,first-name,last-name,maiden-name,email-address,picture-url)", LINKEDIN_API_URL]

                                                success:^(LISDKAPIResponse *response)
             {


                 NSData* data = [response.data dataUsingEncoding:NSUTF8StringEncoding];

                 NSDictionary *dictResponse = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];

NSString *authUsername = [NSString stringWithFormat: @"%@ %@", [dictResponse valueForKey: @"firstName"], dictResponse];
} error:^(LISDKAPIError *apiError) {

                 NSLog(@"Error  : %@", apiError);

             }];

        } errorBlock:^(NSError *error) {

            NSLog(@"Error called  : %@", error);

        }];

Answer 1

第 1 步：在您的 pod 文件中添加这两个 pod。

pod 'AFNetworking', '~> 2.5.4'
pod 'IOSLinkedInAPI', '~> 2.0'

第 2 步：导入这些库

#import <linkedin-sdk/LISDK.h>
#import <LIALinkedInHttpClient.h>
#import <LIALinkedInApplication.h>
#import <AFHTTPRequestOperation.h>

第 3 步：在您希望linkedIn 登录的类中创建一个属性：

@property (nonatomic, strong) LIALinkedInHttpClient *client;

第 4 步：在您要使用的类中编写此方法，并提供链接应用程序的常量值（如 clientID 和 client Secret 和 redirectURL）。

- (LIALinkedInHttpClient *)clientSettings {
    LIALinkedInApplication *application = [LIALinkedInApplication     applicationWithRedirectURL:kRedirectURL     clientId:kClientID clientSecret:kClientSecret   state:@"DCEEFWF45453sdffef424342" grantedAccess:@[@"r_basicprofile",@"r_emailaddress"]];

    return [LIALinkedInHttpClient clientForApplication:application         presentingViewController:self.window.rootViewController];
}

第 5 步：在要在 viewDidLoad 方法中使用的类中写下这一行。

 _client = [self clientSettings];

第 6 步： 在 Appdelegate 的文件方法“openURL”中写入这一行。

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {

    BOOL handled;

    if ([LISDKCallbackHandler shouldHandleUrl:url]) {
        handled = [LISDKCallbackHandler application:application openURL:url sourceApplication:sourceApplication annotation:annotation];
    }
    return handled;
}

第 7 步：现在将这些方法写入您要在登录时使用链接的类中。

- (void)didTapConnectWithLinkedIn {

    [self.client getAuthorizationCode:^(NSString *code) {

        [self.client getAccessToken:code success:^(NSDictionary *accessTokenData) {
            NSString *accessToken = [accessTokenData objectForKey:@"access_token"];
            [self requestMeWithToken:accessToken];
        }                   failure:^(NSError *error) {
            NSLog(@"Querying accessToken failed %@", error);
        }];
    }                      cancel:^{
        NSLog(@"Authorization was cancelled by user");
    }                     failure:^(NSError *error) {

        NSLog(@"Authorization failed %@", error);
    }];
}

- (void)requestMeWithToken:(NSString *)accessToken {

    [self.client GET:[NSString stringWithFormat:@"https://api.linkedin.com/v1/people/~:(id,first-name,last-name,maiden-name,email-address,formatted-name,phonetic-last-name,location:(country:(code)),industry,distance,current-status,current-share,network,skills,phone-numbers,date-of-birth,main-address,positions:(title),educations:(school-name,field-of-study,start-date,end-date,degree,activities))?oauth2_access_token=%@&format=json", accessToken] parameters:nil success:^(AFHTTPRequestOperation *operation, NSDictionary *result) {


        NSLog(@"current user %@", result);


    }        failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"failed to fetch current user %@", error);
    }];

}

第 8 步：现在只调用 IBAction 按钮上的方法“didTapConnectWithLinkedIn”。

就是这样。快乐编码。 （如果有任何问题，请在提交中问我）。