Question

when intergrating FB to my app it comes up and varifies that its connected but when it comes to going back to the app it crashes,

This is the return process from the fb developer page and added it that it comes to my view controller page

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
  sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
    return [[Ball_GameViewController facebook] handleOpenURL:url]; 

}

has an advisory on the line that starts

return

saying

warning: ‘Ball_GameViewController’ may not respond to ‘+facebook’

any idea am i directing it to the wrong areas.

Ball_GameViewController.h

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

@interface Ball_GameViewController : UIViewController <FBSessionDelegate, FBDialogDelegate>
{
    Facebook *facebook;
}

@property (nonatomic, retain) Facebook *facebook;
@property (nonatomic, retain) IBOutlet UIWindow *window;

- (IBAction)facebookpost;
- (IBAction)start;
- (IBAction)reset;
- (void)countdown;
- (void)scorecount;
- (void)checkTime;

@end

Answer 1

In your Ball_GameViewController @interface you need to use:

@property (nonatomic, strong) Facebook * facebook;

In your Ball_GameViewController @implementation you need to @synthesize facebook;

Update

Try this:

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {

    Ball_GameViewController * ballGame = [[Ball_GameViewController alloc] init];

    return [[ballGame facebook] handleOpenURL:url]; 
}