I have a very simple question.
In FB tutorial https://developers.facebook.com/docs/mobile/ios/build/ it starts to login inside didFinishLaunchingWithOptions – right after applications's launch.
I need to login on tap, then wait for a callback and send a message on the FB wall.
I think Hackbook app example design application is too complicated for this purpose.
What is the simplest way to achieve this?
UPD: I've followed the Hackbook example, but ViewControllers still didn't get a callback :(
yAppDelegate.h:
#import
#import "FBConnect.h"
@interface yAppDelegate : UIResponder
{
Facebook *facebook;
}
@property (strong, nonatomic) UIWindow *window;
@property (nonatomic, retain) Facebook *facebook;
@end
yAppDelegate.m:
#import "yAppDelegate.h"
#import "yViewController.h"
static NSString* kAppId = @"350435425024264";
@implementation yAppDelegate
@synthesize window = _window;
@synthesize facebook;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
yViewController *viewController = [[yViewController alloc] init];
facebook = [[Facebook alloc] initWithAppId:kAppId andDelegate:viewController];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:@"FBAccessTokenKey"] && [defaults objectForKey:@"FBExpirationDateKey"]) {
facebook.accessToken = [defaults objectForKey:@"FBAccessTokenKey"];
facebook.expirationDate = [defaults objectForKey:@"FBExpirationDateKey"];
}
return YES;
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
[[self facebook] extendAccessTokenIfNeeded];
}
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [self.facebook handleOpenURL:url];
}
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [self.facebook handleOpenURL:url];
}
yViewController.h:
#import
#import "FBConnect.h"
@interface yViewController : UIViewController
{
NSArray *permissions;
}
@property (nonatomic, retain) NSArray *permissions;
@end
yViewController.m
#import "yViewController.h"
#import "yAppDelegate.h"
#import "FBConnect.h"
@interface yViewController ()
@end
@implementation yViewController
@synthesize permissions;
- (IBAction)buttonPressed:(UIButton *)sender {
NSLog(@"Button pressed!");
permissions = [[NSArray alloc] initWithObjects:@"offline_access", nil];
yAppDelegate *delegate = (yAppDelegate *)[UIApplication sharedApplication].delegate;
if (![[delegate facebook] isSessionValid]) {
[[delegate facebook] authorize:permissions];
} else {
//[self showLoggedIn];
}
NSLog(@"login!!");
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
#pragma mark - FBSessionDelegate Methods
/**
* Called when the user has logged in successfully.
*/
- (void)fbDidLogin {
NSLog(@"did login");
}
-(void)fbDidExtendToken:(NSString *)accessToken expiresAt:(NSDate *)expiresAt {
NSLog(@"token extended");
}
/**
* Called when the user canceled the authorization dialog.
*/
-(void)fbDidNotLogin:(BOOL)cancelled {
NSLog(@"fbDidNotLogin");
}
/**
* Called when the request logout has succeeded.
*/
- (void)fbDidLogout {
NSLog(@"fbDidLogout");
// Remove saved authorization information if it exists and it is
// ok to clear it (logout, session invalid, app unauthorized)
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults removeObjectForKey:@"FBAccessTokenKey"];
[defaults removeObjectForKey:@"FBExpirationDateKey"];
[defaults synchronize];
}
/**
* Called when the session has expired.
*/
- (void)fbSessionInvalidated {
NSLog(@"fbSessionInvalidated");
[self fbDidLogout];
}
#pragma mark - FBRequestDelegate Methods
/**
* Called when the Facebook API request has returned a response.
*
* This callback gives you access to the raw response. It's called before
* (void)request:(FBRequest *)request didLoad:(id)result,
* which is passed the parsed response object.
*/
- (void)request:(FBRequest *)request didReceiveResponse:(NSURLResponse *)response {
//NSLog(@"received response");
}
/**
* Called when a request returns and its response has been parsed into
* an object.
*
* The resulting object may be a dictionary, an array or a string, depending
* on the format of the API response. If you need access to the raw response,
* use:
*
* (void)request:(FBRequest *)request
* didReceiveResponse:(NSURLResponse *)response
*/
- (void)request:(FBRequest *)request didLoad:(id)result {
NSLog(@"-(void)request");
}
/**
* Called when an error prevents the Facebook API request from completing
* successfully.
*/
- (void)request:(FBRequest *)request didFailWithError:(NSError *)error {
NSLog(@"Err message: %@", [[error userInfo] objectForKey:@"error_msg"]);
NSLog(@"Err code: %d", [error code]);
}
@end
