IOS - Facebook SDK fbDidLogin未调用 - 初始化视图控制器。 [英] IOS - Facebook SDK fbDidLogin not called -- initialize view controllers.

问题描述

我按照Facebook的SDK SDK教程一步一步地遵循。除了fbDidLogin得到调用，我有一切工作...授权过程工作正常。我被告知要做：

   - （BOOL）应用程序：（UIApplication *）应用程序handleOpenURL：（NSURL *）url {
 return [[controller facebook] handleOpenURL：url]; 
} 
  

from fbDidLogin未调用

问题是我不确定如何分配init视图控制器。这是我的.h应用程序委托：

  #import< UIKit / UIKit.h> 
 #importFBConnect.h
 
 
 @interface fb2AppDelegate：UIResponder< UIApplicationDelegate，FBSessionDelegate> {
 
 Facebook * facebook; 
 UIViewController * fb2ViewController; 
} 
 
 @property（强，非原子）UIWindow *窗口; 
 @property（强，非原子）Facebook * facebook; 
 @property（nonatomic，strong）UIViewController * fb2ViewController; 
 
 @end 
  

和.m：

  #importfb2AppDelegate.h
 
 @implementation fb2AppDelegate 
 @synthesize window = _window; 
 @synthesize Facebook; 
 @synthesize fb2ViewController; 
 
 
  - （BOOL）应用程序：（UIApplication *）应用程序didFinishLaunchingWithOptions :( NSDictionary *）launchOptions 
 {
 
 self.fb2ViewController = [[UIViewController alloc] init]; 
 
 facebook = [[Facebook alloc] initWithAppId：@key_hereandDelegate：self]; 
 
 
 NSUserDefaults * defaults = [NSUserDefaults standardUserDefaults]; 
 if（[defaults objectForKey：@FBAccessTokenKey] 
&&&&default; ]。 
 facebook.expirationDate = [defaults objectForKey：@FBExpirationDateKey]; 
} 
 
 if（！[facebook isSessionValid]）{
 [facebook authorize：nil]; 
} 
 
 
返回YES; 
} 
 
 
  - （BOOL）应用程序：（UIApplication *）应用程序handleOpenURL：（NSURL *）url {
 return [[fb2ViewController facebook] handleOpenURL：url] ; 
} 
 
 
  - （void）fbDidLogin {
 
 NSLog（@fbdidlogin）; 
 
 NSUserDefaults * defaults = [NSUserDefaults standardUserDefaults]; 
 [defaults setObject：[facebook accessToken] forKey：@FBAccessTokenKey]; 
 [defaults setObject：[facebook expirationDate] forKey：@FBExpirationDateKey]; 
 [默认同步]; 
 
 NSMutableDictionary * params = [NSMutableDictionary dictionaryWithObjectsAndKeys：
 @key_here，@app_id，
 @http://developers.facebook.com/docs/reference/对话框/，@link，
 @http://fbrell.com/f8.jpg，@picture，
 @Facebook Dialogs，@name，
 @参考文档，@caption，
 @使用对话框与用户交互，@description，
 nil]; 
 
 [facebook dialog：@feedandParams：params andDelegate：self]; 
 
} 
  

对于视图控制器...我没有把任何代码放进去。

我收到的错误是：

没有可见的@interface为'UIViewController'声明选择器' Facebook'

我做错了什么？

thx！

解决方案

好的，你需要做：

  [facebook handleOpenURL：url]。 
  

您正在使用 facebook 作为选择器而不是一个对象。

另外..你需要设置 facebook.sessionDelegate = self ，以便代理方法 fbDidLogin 可以调用。

希望这有帮助！

I followed the Facebook SDK tutorial from Facebook step by step. I have everything working besides fbDidLogin getting called... the authorization process works fine. I've been told to do:

     - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
          return [[controller facebook] handleOpenURL:url];
     }

from fbDidLogin not called

the problem is is that I'm not exactly sure how to alloc init my view controller. Here is my .h for app delegate:

#import <UIKit/UIKit.h>
#import "FBConnect.h"


@interface fb2AppDelegate : UIResponder  <UIApplicationDelegate, FBSessionDelegate> {

    Facebook *facebook; 
    UIViewController *fb2ViewController;
}

@property (strong, nonatomic) UIWindow *window;
@property (strong,nonatomic) Facebook *facebook; 
@property (nonatomic, strong) UIViewController *fb2ViewController;

@end

and the .m :

#import "fb2AppDelegate.h"

@implementation fb2AppDelegate
@synthesize window = _window;
@synthesize facebook;
@synthesize fb2ViewController;


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

    self.fb2ViewController = [[UIViewController alloc] init];

    facebook = [[Facebook alloc] initWithAppId:@"key_here" andDelegate:self];


    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    if ([defaults objectForKey:@"FBAccessTokenKey"] 
        && [defaults objectForKey:@"FBExpirationDateKey"]) {
        facebook.accessToken = [defaults objectForKey:@"FBAccessTokenKey"];
        facebook.expirationDate = [defaults objectForKey:@"FBExpirationDateKey"];
    }

    if (![facebook isSessionValid]) {
        [facebook authorize:nil];
    } 


    return YES;
}


- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
    return [[fb2ViewController facebook] handleOpenURL:url];
}


- (void)fbDidLogin {

    NSLog(@"fbdidlogin"); 

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:[facebook accessToken] forKey:@"FBAccessTokenKey"];
    [defaults setObject:[facebook expirationDate] forKey:@"FBExpirationDateKey"];
    [defaults synchronize];

    NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                   @"key_here", @"app_id",
                                   @"http://developers.facebook.com/docs/reference/dialogs/", @"link",
                                   @"http://fbrell.com/f8.jpg", @"picture",
                                   @"Facebook Dialogs", @"name",
                                   @"Reference Documentation", @"caption",
                                   @"Using Dialogs to interact with users.", @"description",
                                   nil];

    [facebook dialog:@"feed" andParams:params andDelegate:self];

}

as for the view controllers... I haven't put any code in them.

the error that I am receiving is:

no visible @interface for 'UIViewController' declares the selector 'Facebook'

what am i doing wrong?

thx!

解决方案

Okay, You need to do:

[facebook handleOpenURL:url]. 

You are currently using facebook as a selector instead of an object.

Also.. you need to set facebook.sessionDelegate = self, so that the delegate method fbDidLogin can get called.

Hope this helps!

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