我正在开发一款 iphone 游戏，我想让用户在 facebook 上发布他们的分数。我已经设法实现了它，但是每次我想发布提要时，都会有一个 facebook 窗口告诉我我已经登录到我的 Facebook 应用程序，并且用户需要点击接受才能显示将提要发布到的下一个窗口配置文件的墙。
我需要跳过 Facebook 登录吗？我的意思是facebook授权方法并直接跳入facebook feed方法？
这就是我所拥有的，但是会话总是无效的！fbDidLogin 永远不会被调用，并且在调试中它给了我这种错误：
void SendDelegateMessage(NSInvocation*): delegate (webView:decidePolicyForNavigationAction:request:frame:decisionListener:) failed to return after waiting 10 seconds. main run loop mode: kCFRunLoopDefaultMode
如果我注销然后尝试提要，我必须登录 2 次，一次用于会话，一次用于提要。
这是代码：
#import "FacebookConnect.h"
static NSString* kAppId = @"414427041919461"; // Your Facebook app ID here
@implementation FacebookConnect
@synthesize facebook = _facebook;
#pragma mark -
#pragma mark Singleton Variables
static FacebookConnect *singletonDelegate = nil;
#pragma mark -
#pragma mark Singleton stuff
- (id)init {
if (!kAppId) {
NSLog(@"MISSING APP ID!!!");
exit(1);
return nil;
}
if ((self = [super init])) {
_facebook = [[Facebook alloc] initWithAppId:kAppId andDelegate:self];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:@"FBAccessTokenKey"]
&& [defaults objectForKey:@"FBExpirationDateKey"]) {
_facebook.accessToken = [defaults objectForKey:@"FBAccessTokenKey"];
_facebook.expirationDate = [defaults objectForKey:@"FBExpirationDateKey"];
}
}
return self;
}
+(FacebookConnect *) sharedFacebook
{
@synchronized([FacebookConnect class])
{
if(!singletonDelegate) [[self alloc] init];
return singletonDelegate;
}
return nil;
}
+(id)alloc
{
@synchronized ([FacebookConnect class])
{
NSAssert(singletonDelegate == nil, @"Attempted to allocate a second instance of the Game Manager singleton");
singletonDelegate = [super alloc];
return singletonDelegate;
}
return nil;
}
#pragma mark -
#pragma mark Singleton methods
-(void) logout
{
[_facebook logout];
}
-(void) feedWithScore:(int) _s andLevel:(int) _l
{
if (![_facebook isSessionValid]) {
NSLog(@"Session invalid - Authorize");
/*NSArray *permissions = [[NSArray alloc] initWithObjects:@"user_likes", @"read_stream",nil];
[_facebook authorize:permissions];
[permissions release];*/
[_facebook authorize:nil];
}
[_facebook dialog:@"feed" andDelegate:self];
}
#pragma mark -
#pragma mark Facebook implementations
// Pre iOS 4.2 support
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [_facebook handleOpenURL:url];
}
// For iOS 4.2+ support
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [_facebook handleOpenURL:url];
}
- (void)fbDidLogin {
NSLog(@"Login OK");
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[_facebook accessToken] forKey:@"FBAccessTokenKey"];
[defaults setObject:[_facebook expirationDate] forKey:@"FBExpirationDateKey"];
[defaults synchronize];
}
- (void) fbDidLogout {
NSLog(@"Log out");
// Remove saved authorization information if it exists
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:@"FBAccessTokenKey"]) {
[defaults removeObjectForKey:@"FBAccessTokenKey"];
[defaults removeObjectForKey:@"FBExpirationDateKey"];
[defaults synchronize];
}
}
- (void)dialogDidComplete:(FBDialog *)dialog{ NSLog(@"Login OK"); }
- (void)dialogDidNotComplete:(FBDialog *)dialog{}
- (void)dialogCompleteWithUrl:(NSURL *)url{}
- (void)dialog:(FBDialog*)dialog didFailWithError:(NSError *)error{}
- (BOOL)dialog:(FBDialog*)dialog shouldOpenURLInExternalBrowser:(NSURL *)url{return NO;}
- (void)fbDidNotLogin:(BOOL)cancelled{}
- (void)fbDidExtendToken:(NSString*)accessToken
expiresAt:(NSDate*)expiresAt{}
- (void)fbSessionInvalidated{}
#pragma mark -
#pragma mark Dealloc
-(void) dealloc{
[super dealloc];
[_facebook release];
}
@end