Facebook SDK即使在源代码修改后也会启动Safari

Question

我正在尝试通过UIWebView对facebook sdk进行授权，但即使我在stackoverflow上执行了所有注释和值切换建议后，它仍然继续打开safari。还有什么我应该注意的吗？我只使用一个视图使用ARC启用测试项目。

我将trySafariAuth设置为NO

BOOL didOpenOtherApp = NO;
trySafariAuth = NO;
UIDevice *device = [UIDevice currentDevice];
if ([device respondsToSelector:@selector(isMultitaskingSupported)] && [device isMultitaskingSupported]) {
    if (tryFBAppAuth) {
        NSString *scheme = kFBAppAuthURLScheme;
        if (_urlSchemeSuffix) {
            scheme = [scheme stringByAppendingString:@"2"];
        }
        NSString *urlPrefix = [NSString stringWithFormat:@"%@://%@", scheme, kFBAppAuthURLPath];
        NSString *fbAppUrl = [FBRequest serializeURL:urlPrefix params:params];
        didOpenOtherApp = [[UIApplication sharedApplication] openURL:[NSURL URLWithString:fbAppUrl]];
    }

    if (trySafariAuth && !didOpenOtherApp) {
        NSString *nextUrl = [self getOwnBaseUrl];
        [params setValue:nextUrl forKey:@"redirect_uri"];

        NSString *fbAppUrl = [FBRequest serializeURL:loginDialogURL params:params];
        didOpenOtherApp = [[UIApplication sharedApplication] openURL:[NSURL URLWithString:fbAppUrl]];
    }
}

// If single sign-on failed, open an inline login dialog. This will require the user to
// enter his or her credentials.
if (!didOpenOtherApp) {
    [_loginDialog release];
    _loginDialog = [[FBLoginDialog alloc] initWithURL:loginDialogURL
                                          loginParams:params
                                             delegate:self];
    [_loginDialog show];
}

我也改变了：

- (void)authorize:(NSArray *)permissions {
self.permissions = permissions;

[self authorizeWithFBAppAuth:YES safariAuth:NO];
}