我正在构建一个在导航栏中有一个导航项的应用程序。
我试图了解单击按钮时如何使用 facebook sdk 连接到 facebook（身份验证）。
这不是一些特殊的视图控制器或其他东西。
我看过这个：http: //developers.facebook.com/docs/tutorials/ios-sdk-tutorial/authenticate/
但是在那里我需要在委托中创建一些我不能使用的东西（比如 UINavigationController），因为我使用的是 UITabBarController..
如何仅通过推送 UINavigationItem 来实现 facebook 登录和会话创建？
这是我的 AppDelegate.h：
#import <UIKit/UIKit.h>
#import <FacebookSDK/FacebookSDK.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) UITabBarController *tbc;
@property (strong, nonatomic) FBSession *session;
@end
还有我的 AppDelegate.m：
#import "AppDelegate.h"
#import "StatusView.h"
#import "JokesView.h"
#import "HomeView.h"
#import "TopTenView.h"
#import "UploadView.h"
@implementation AppDelegate
@synthesize tbc;
@synthesize window = _window;
@synthesize session = _session;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
UINavigationController*nav1 = [[UINavigationController alloc]init];
UINavigationController*nav2 = [[UINavigationController alloc]init];
UINavigationController*nav3 = [[UINavigationController alloc]init];
UINavigationController*nav4 = [[UINavigationController alloc]init];
UINavigationController*nav5 = [[UINavigationController alloc]init];
StatusView*page1 = [[StatusView alloc]initWithNibName:@"StatusView" bundle:nil];
JokesView*page2 = [[JokesView alloc]initWithNibName:@"JokesView" bundle:nil];
HomeView*page3 = [[HomeView alloc]initWithNibName:@"HomeView" bundle:nil];
TopTenView*page4 = [[TopTenView alloc]initWithNibName:@"TopTenView" bundle:nil];
UploadView*page5 = [[UploadView alloc]initWithNibName:@"UploadView" bundle:nil];
page1.title = @"סטטוסים";
page2.title = @"תמונות";
page3.title = @"ראשי";
page4.title = @"Top 10";
page5.title = @"העלאה";
UITabBarItem *tab1 = [[UITabBarItem alloc] initWithTitle:@"Status"
image:[UIImage imageNamed:@"tbc-status.png"] tag:1];
[nav1 setTabBarItem:tab1];
UITabBarItem *tab2 = [[UITabBarItem alloc] initWithTitle:@"Jokes"
image:[UIImage imageNamed:@"tbc-jokes.png"] tag:1];
[nav2 setTabBarItem:tab2];
UITabBarItem *tab3 = [[UITabBarItem alloc] initWithTitle:@"Home"
image:[UIImage imageNamed:@"tbc-home.png"] tag:1];
[nav3 setTabBarItem:tab3];
UITabBarItem *tab4 = [[UITabBarItem alloc] initWithTitle:@"Tpp10"
image:[UIImage imageNamed:@"tbc-topten.png"] tag:1];
[nav4 setTabBarItem:tab4];
UITabBarItem *tab5 = [[UITabBarItem alloc] initWithTitle:@"Upload"
image:[UIImage imageNamed:@"tbc-upload.png"] tag:1];
[nav5 setTabBarItem:tab5];
[nav1 pushViewController:page1 animated:NO];
[nav2 pushViewController:page2 animated:NO];
[nav3 pushViewController:page3 animated:NO];
[nav4 pushViewController:page4 animated:NO];
[nav5 pushViewController:page5 animated:NO];
tbc = [[UITabBarController alloc]init];
tbc.viewControllers = [NSArray arrayWithObjects:nav5,nav4,nav3,nav2,nav1, nil];
tbc.selectedIndex = 2;
// NavBar Design
UIImage *navbarPortrait = [[UIImage imageNamed:@"topbar.jpg"]
resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
UIImage *navbarLandscape = [[UIImage imageNamed:@"topbar.jpg"]
resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[[UINavigationBar appearance] setBackgroundImage:navbarPortrait
forBarMetrics:UIBarMetricsDefault];
[[UINavigationBar appearance] setBackgroundImage:navbarLandscape
forBarMetrics:UIBarMetricsLandscapePhone];
// NavBar Design End
// TabBar Design
UIImage *tabBackground = [[UIImage imageNamed:@"tbcb3ack.png"]
resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[[UITabBar appearance] setBackgroundImage:tabBackground];
[[tbc tabBar] setBackgroundImage:tabBackground];
// TabBar Design End
[self.window addSubview:tbc.view];
self.window.rootViewController = self.tbc;
// Push Notifications
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeNone)];
// Push Notifications End
// Facebook Code Start
//UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Not Logged in"
// message:@"You Log in to use all the fearues in this app"
// delegate:nil
// cancelButtonTitle:@"OK"
// otherButtonTitles:nil];
if (FBSession.activeSession.state == FBSessionStateCreatedTokenLoaded) {
// To-do, show logged in view
} else {
//[alert show];
}
// Facebook Code End
[self.window makeKeyAndVisible];
return YES;
}
// Facebook sdk code Start
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation {
// attempt to extract a token from the url
return [FBAppCall handleOpenURL:url
sourceApplication:sourceApplication
withSession:self.session];
}
// Facebook sdk code End
- (void)applicationWillResignActive:(UIApplication *)application
{
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}
- (void)applicationDidEnterBackground:(UIApplication *)application
{
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
- (void)applicationWillEnterForeground:(UIApplication *)application
{
// Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}
- (void)applicationDidBecomeActive:(UIApplication *)application
{
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
- (void)applicationWillTerminate:(UIApplication *)application
{
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
[FBAppCall handleDidBecomeActiveWithSession:self.session];
}
#pragma mark Template generated code
@end
这些是在我使用 facebook ios 身份验证教程之后，在实际的 fb 会话更改和登录按钮之前。