FB返回崩溃的应用程序Xcode iOS Iphone

Question

将FB与我的应用程序集成时，它会启动并确认其已连接，但是当返回到应用程序时，它会崩溃，

这是fb开发人员页面的返回过程，并将其添加到我的视图控制器页面

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

}

在开始时有咨询服务

返回

说

警告：“ Ball_GameViewController”可能不响应“ + facebook”

任何想法，我将其定向到错误的区域。

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Ball_GameViewController @interface您需要使用：

@property (nonatomic, strong) Facebook * facebook;

在Ball_GameViewController @implementation您需要@synthesize facebook;

更新资料

尝试这个：

- (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]; 
}