kgleong

func uploadFile(
    name: String,
    folderID: String,
    fileURL: URL,
    mimeType: String,
    service: GTLRDriveService) {
    
    let file = GTLRDrive_File()
    file.name = name
    file.parents = [folderID]

kgleong

func createFolder(
    name: String,
    service: GTLRDriveService,
    completion: @escaping (String) -> Void) {
    
    let folder = GTLRDrive_File()
    folder.mimeType = "application/vnd.google-apps.folder"
    folder.name = name
    
    // Google Drive folders are files with a special MIME-type.

kgleong

func getFolderID(
    name: String,
    service: GTLRDriveService,
    user: GIDGoogleUser,
    completion: @escaping (String?) -> Void) {
    
    let query = GTLRDriveQuery_FilesList.query()

    // Comma-separated list of areas the search applies to. E.g., appDataFolder, photos, drive.
    query.spaces = "drive"

kgleong

import GTMSessionFetcher

extension ViewController: GIDSignInDelegate, GIDSignInUIDelegate {
    func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
        // A nil error indicates a successful login
        if error == nil {
            // Include authorization headers/values with each Drive API request.
            self.googleDriveService.authorizer = user.authentication.fetcherAuthorizer()
            self.googleUser = user
        } else {

kgleong

import GTMSessionFetcher

extension ViewController: GIDSignInDelegate, GIDSignInUIDelegate {
    func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
        // A nil error indicates a successful login
        if error == nil {
            // Use the authenticated user's credentials when querying the Google Drive API.
            self.googleDriveService.authorizer = user.authentication.fetcherAuthorizer()
        } else {
            self.googleDriveService.authorizer = nil

kgleong

import GoogleSignIn
import GoogleAPIClientForREST
import GTMSessionFetcher

class ViewController: UIViewController {
    let googleDriveService = GTLRDriveService()

    override func viewDidLoad() {
        // ...
        GIDSignIn.sharedInstance()?.scopes = [kGTLRAuthScopeDriveFile]

kgleong

import GoogleSignIn

class ViewController: UIViewController {
    // ...
  
    override func viewDidLoad() {
        super.viewDidLoad()
        
        /***** Configure Google Sign In *****/ 
      

kgleong

extension ViewController: GIDSignInDelegate, GIDSignInUIDelegate {
    // MARK: - GIDSignInDelegate
    
    func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {
        // A nil error indicates a successful login
        googleSignInButton.isHidden = error == nil
    }
}

kgleong

import GoogleSignIn

class ViewController: UIViewController {
    let googleSignInButton = UIButton()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        view.addSubview(googleSignInButton)
        googleSignInButton.setTitle("Google Sign In", for: .normal)

kgleong

func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
    let sourceApplication = options[.sourceApplication] as? String
    let annotation = options[.annotation]
    
    return GIDSignIn.sharedInstance()?.handle(url, sourceApplication: sourceApplication, annotation: annotation) ?? false
}