เข้าถึง Google APIs ในแอป iOS

let driveScope = "https://www.googleapis.com/auth/drive.readonly" let grantedScopes = user.grantedScopes if grantedScopes == nil || !grantedScopes!.contains(driveScope) {   // Request additional Drive scope. } 

NSString *driveScope = @"https://www.googleapis.com/auth/drive.readonly";  // Check if the user has granted the Drive scope if (![user.grantedScopes containsObject:driveScope]) {   // request additional drive scope } 

let additionalScopes = ["https://www.googleapis.com/auth/drive.readonly"] guard let currentUser = GIDSignIn.sharedInstance.currentUser else {     return ;  /* Not signed in. */ }  currentUser.addScopes(additionalScopes, presenting: self) { signInResult, error in     guard error == nil else { return }     guard let signInResult = signInResult else { return }      // Check if the user granted access to the scopes you requested. } 

NSArray *additionalScopes = @[ @"https://www.googleapis.com/auth/drive.readonly" ]; GIDGoogleUser *currentUser = GIDSignIn.sharedInstance.currentUser;  [currentUser addScopes:additionalScopes            presentingViewController:self                          completion:^(GIDSignInResult * _Nullable signInResult,                                       NSError * _Nullable error) {     if (error) { return; }     if (signInResult == nil) { return; }      // Check if the user granted access to the scopes you requested. }]; 

currentUser.refreshTokensIfNeeded { user, error in     guard error == nil else { return }     guard let user = user else { return }      // Get the access token to attach it to a REST or gRPC request.     let accessToken = user.accessToken.tokenString      // Or, get an object that conforms to GTMFetcherAuthorizationProtocol for     // use with GTMAppAuth and the Google APIs client library.     let authorizer = user.fetcherAuthorizer() } 

[currentUser refreshTokensIfNeededWithCompletion:^(                               GIDGoogleUser * _Nullable user,                               NSError * _Nullable error) {     if (error) { return; }     if (user == nil) { return; }      // Get the access token to attach it to a REST or gRPC request.     NSString *accessToken = user.accessToken.tokenString;      // Or, get an object that conforms to GTMFetcherAuthorizationProtocol for     // use with GTMAppAuth and the Google APIs client library.     id<GTMFetcherAuthorizationProtocol> authorizer = [user fetcherAuthorizer]; }];