iphone - FB 返回崩溃应用程序 xcode ios iphone

Question

当将 FB 集成到我的应用程序时，它出现并验证它已连接但是当返回到应用程序时它崩溃了，

这是fb developer page的返回过程，添加到我的view controller page中

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

}

在开始的行上有一个咨询

return

说

warning: 'Ball_GameViewController' may not respond to '+facebook'

我是不是把它指向了错误的区域。

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

在你的 Ball_GameViewController @interface 你需要使用:

@property (nonatomic, strong) Facebook * facebook;

在你的 Ball_GameViewController @implementation 你需要 @synthesize facebook;

更新

试试这个:

- (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]; 
}