我正在尝试使用 oauth 2.0 协议连接谷歌文档。我认为连接正常，因为我获得了访问令牌。之后我想列出文件。我将objective-c api的gdata添加到我的项目中，并按照示例进行操作，但没有得到任何文档。我只是想阅读第一个文档的标题并显示它，但一定有问题，或者我可能遗漏了一些东西。有什么帮助吗？谢谢。这是代码：
视图控制器.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
谢谢！！！