3

oauth 2.0 プロトコルを使用して Google ドキュメントに接続しようとしています。アクセストークンが取得できたので接続はOKだと思います。その後、ドキュメントをリストしたいと思います。Objective-C api の gdata をプロジェクトに追加し、例に従いましたが、ドキュメントを取得できません。最初のドキュメントのタイトルを読んで表示しようとしていますが、何かが間違っているか、何かが欠けている可能性があります。何か助けはありますか？ありがとう。コードは次のとおりです。

ViewController.m

@implementation ViewController

@synthesize accessToken;
@synthesize mDocListFeed;
@synthesize mDoclistFetchTicket;


static NSString *const kMyClientID = @"199740745364-22lugf8undgv0rc0ucbfpgsn3v90lfsd.apps.googleusercontent.com";
static NSString *const kMyClientSecret = @"dPFs5D66kLyQIgUNL6igKUoX";
static NSString *const kKeychainItemName = @"casa";

- (GDataServiceGoogleDocs *)docsService {

  static GDataServiceGoogleDocs* service = nil;

  if (!service) {
    service = [[GDataServiceGoogleDocs alloc] init];

    [service setShouldCacheResponseData:YES];
    [service setServiceShouldFollowNextLinks:YES];
    [service setIsServiceRetryEnabled:YES];
}

return service;

}



- (void) mifetch {

    GDataServiceGoogleDocs *service = [self docsService];

    GDataServiceTicket *ticket;


    NSURL *feedURL = [GDataServiceGoogleDocs docsFeedURL];


   ticket = [service fetchFeedWithURL:feedURL
                 delegate:self
        didFinishSelector:@selector(ticket:finishedWithFeed:error:)];

    mDoclistFetchTicket = ticket;

}

- (void) ticket: (GDataServiceTicket *) ticket
        finishedWithFeed: (GDataFeedDocList *) feed
            error: (NSError *) error {

mDocListFeed = feed;


GDataEntryDocBase *doc = [[mDocListFeed entries] objectAtIndex:0];

NSString *ttitle = [[doc title] stringValue];
UIAlertView *alertView = [ [UIAlertView alloc] initWithTitle:@"primer doc"
                                  message:[NSString stringWithFormat:@"titulo: %@", ttitle]
                                                    delegate:self
                                           cancelButtonTitle:@"Dismiss"
                                           otherButtonTitles:nil];

[alertView show];

}


- (void)authorize {

  NSString *scope = @"https://spreadsheets.google.com/feeds";

// scope for Google+ API

GTMOAuth2ViewControllerTouch *windowController = [[GTMOAuth2ViewControllerTouch alloc]      initWithScope:scope
                                                                                            clientID:kMyClientID
                                                                                        clientSecret:kMyClientSecret
                                                                                    keychainItemName:kKeychainItemName
                                                                                            delegate:self
                                                    finishedSelector:@selector(viewController:finishedWithAuth:error:)];


[[self navigationController] pushViewController:windowController animated:YES];
}


- (IBAction)autenticarse 
{
[self authorize];
}


- (IBAction)listar
{

[self mifetch];
}


- (void)viewController:(GTMOAuth2ViewControllerTouch *)viewController
  finishedWithAuth:(GTMOAuth2Authentication *)auth
             error:(NSError *)error
{


if (error != nil)
{
    // Authentication failed
    UIAlertView *alertView = [ [UIAlertView alloc] initWithTitle:@"Authorization Failed"
                                                         message:[error localizedDescription]
                                                        delegate:self
                                               cancelButtonTitle:@"Dismiss"
                                               otherButtonTitles:nil];
    [alertView show];
}
else
{
    //si error==nil en el callback, entonces la peticion fue autorizada
    // Authentication succeeded

    // Assign the access token to the instance property for later use
    self.accessToken = auth.accessToken;



    // Display the access token to the user
    UIAlertView *alertView = [ [UIAlertView alloc] initWithTitle:@"Authorization Succeeded"
   message:[NSString stringWithFormat:@"Access Token: %@ code:%@", auth.accessToken, auth.code]
                                                        delegate:self
                                               cancelButtonTitle:@"Dismiss"
                                               otherButtonTitles:nil];
    [alertView show];
    [[self docsService] setAuthorizer:auth];

}
}


// table view data source methods


//The first thing we have to do is, tell the table view how many rows it should expect and this is done in tableView:numberOfRowsInSection. 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

if (tableView == tablalistar) {
    return [[mDocListFeed entries] count];
}

return 0;


}


//Now that the table view knows how many rows to display, we need to display the actual text which goes in a table view cell. The table view is made of table rows and rows contains table cell. This is done in tableView:cellForRowAtIndexPath which is called n number of times, where n is the value returned in tableView:numberOfRowsInSection. The method provides indexPath which is of type NSIndexPath and using this we can find out the current row number the table view is going to display.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {


UITableViewCell *cell = [tableView 
                         dequeueReusableCellWithIdentifier:@"tablalistar"];

if (tableView == tablalistar) {



    GDataEntryDocBase *doc = [[mDocListFeed entries] objectAtIndex:indexPath.row];

    cell.textLabel.text = [[doc title] stringValue];


}
 return cell;
}   




@end

ありがとう！！！

4

1 に答える 1

1

スコープ文字列はスプレッドシート API のアクセス許可のみを要求していますが、フェッチはドキュメント リスト API を対象としています。

DocList API のスコープは、次のように利用できます。+[GDataServiceGoogleDocs authorizationScope]

複数のサービスのスコープを組み合わせることができます+[GTMOAuth2Authentication scopeWithStrings:]

ちなみに、DocList API はGoogle Drive APIに置き換えられました。

于 2012-07-05T05:12:37.510 に答える