hatim haffane hatim haffane - 4 months ago 64
iOS Question

Google Drive iOS SDK: Display Cancel Login Button

I'm working on a iOS Application and i use Google drive to access my files , login and listing file works fine , but I'm just asking how i can add a cancel button on the Login interface provided by Google drive sdk see the Image bellow

enter image description here

As,you see there are no way to do a

cancel
or a
go back
button.

Here Is my code

// verify if the user is already connected or not
- (void)checkIfIsConnected
{
// Check for authorization.
GTMOAuth2Authentication *auth =
[GTMOAuth2ViewControllerTouch authForGoogleFromKeychainForName:kKeychainItemName
clientID:kClientID
clientSecret:kClientSecret];
if ([auth canAuthorize]) {
[self isAuthorizedWithAuthentication:auth];
}else
{
[self ConnectToDrive];
}
}

- (GTLServiceDrive *)driveService {
static GTLServiceDrive *service = nil;
if (!service) {

service = [[GTLServiceDrive alloc] init];
// Have the service object set tickets to fetch consecutive pages
// of the feed so we do not need to manually fetch them.
service.shouldFetchNextPages = YES;
// Have the service object set tickets to retry temporary error conditions
// automatically.
service.retryEnabled = YES;
}
return service;
}

-(void) ConnectToDrive{
SEL finishedSelector = @selector(viewController:finishedWithAuth:error:);
GTMOAuth2ViewControllerTouch *authViewController =
[[GTMOAuth2ViewControllerTouch alloc] initWithScope:kGTLAuthScopeDrive
clientID:kClientID
clientSecret:kClientSecret
keychainItemName:kKeychainItemName
delegate:self
finishedSelector:finishedSelector];
[self.fileManagementViewController presentModalViewController:authViewController animated:YES];
}

// Action executed after finishing the Authentication
- (void)viewController:(GTMOAuth2ViewControllerTouch *)viewController
finishedWithAuth:(GTMOAuth2Authentication *)auth
error:(NSError *)error {
[self.fileManagementViewController dismissModalViewControllerAnimated:YES];
if (error == nil) {
[self isAuthorizedWithAuthentication:auth];
}
}

- (void)isAuthorizedWithAuthentication:(GTMOAuth2Authentication *)auth {
[[self driveService] setAuthorizer:auth];
self.isAuthorized = YES;
[self loadDriveFiles];
}


so what wrong ??

Answer

Please follow the steps -

enter image description here

Go to--> GTLSource->Common->OAuth2->Touch-->GTMOAuth2ViewControllerTouch.m

-(void)viewDidLoad
{
[self setUpNavigation];

[self.navigationController.navigationBar setTitleTextAttributes:@   {NSForegroundColorAttributeName : [UIColor blueColor]}];
self.navigationController.navigationBar.translucent = NO;

UINavigationBar *naviBarObj = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, 320, 63)];
[self.view addSubview:naviBarObj];

UIBarButtonItem *cancelItem = [[UIBarButtonItem alloc]initWithTitle:[NSString stringWithFormat:NSLocalizedString(@"Cancel", nil)] style:UIBarButtonItemStyleBordered target:self
                                                             action:@selector(cancelGdriveSignIn:)];    
UINavigationItem *navigItem = [[UINavigationItem alloc] initWithTitle:@"Google Drive"];
navigItem.rightBarButtonItem = cancelItem;
naviBarObj.items = [NSArray arrayWithObjects: navigItem,nil];    
}

 -(void)cancelGdriveSignIn:(id)sender
 {
  [self dismissViewControllerAnimated:YES completion:^(void){}];
 }

-(void)setUpNavigation // Default Method Available 
{
 rightBarButtonItem_.customView = navButtonsView_;
 self.navigationItem.rightBarButtonItem = rightBarButtonItem_;
}

Once you add the above changes in the GTMOAuth2ViewControllerTouch.m and run it. you will get cancel button like this-

enter image description here

Happy Coding......!!