我正在尝试向当前用户发布留言墙。在执行请求之前,我正在验证 session 并在未验证时进行授权。为了澄清,我省略了一些声明和变量的初始化。问题在于此处显示的代码是在执行 fbDidLogin-delegate 方法之前执行的。所以看起来 Facebook 对象在请求之前没有有效的访问 token 。我做了一个单例。下次我运行该程序时它会起作用。
代表
- (void)fbDidLogin
{
NSLog(@"DEBUG: DID LOG IN");
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[facebook accessToken] forKey:@"FBAccessTokenKey"];
[defaults setObject:[facebook expirationDate] forKey:@"FBExpirationDateKey"];
[defaults synchronize];
}
View Controller
Facebook *facebook = [SocialMedia sharedFacebookAuthorized];
NSString *name = nil;
NSString *message = nil;
NSString *picture = nil;
if (self.didPassTest) {
// Code
} else {
// Code
}
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
name, @"name",
message, @"message",
picture, @"picture",
description, @"description",
link, @"link",
caption, @"caption", nil];
[facebook requestWithGraphPath:@"me/feed" andParams:params andHttpMethod:@"POST" andDelegate:self];
SharedFacebook..功能
+ (Facebook *)sharedFacebookAuthorized
{
[self sharedFacebook];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:@"FBAccessTokenKey"] && [defaults objectForKey:@"FBExpirationDateKey"]) {
facebook.accessToken = [defaults objectForKey:@"FBAccessTokenKey"];
facebook.expirationDate = [defaults objectForKey:@"FBExpirationDateKey"];
}
NSArray *permissions = [[NSArray arrayWithObjects:@"email", @"read_stream", @"publish_stream", nil] retain];
NSLog(@"START?");
if (![facebook isSessionValid]) {
[facebook authorize:permissions];
NSLog(@"INSIDE?");
}
NSLog(@"CONTINUE?");
return facebook;
}
最佳答案
这是一个异步任务。在从图形 API 请求任何内容之前,您必须等待授权异步调用完成。在这里查看我对类似问题的回答:How to react to asynchronous events (login)?
关于iphone - Facebook SSO 并请求 iOS SDK,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7151737/