问题
I have a local photo in my iPhone app, and I want to upload it to a specific album on Facebook dedicated to my app.
Problem: My app name ends with the word 'Photos', so the default Facebook album is APP_NAME Photos Photos - obviously a problem.
Goal: I want to create a new album, store its ID in NSUserDefaults, and (after some validation at runtime) use it for all future photos being uploaded from the app.
Where I'm at: I can make the new album via Open Graph, using my desired name and description, and I can retrieve its ID. I can also upload photos easily enough. However, what I CANNOT figure out is how to specify where that uploaded photo ends up!
Code: Here's my photo upload code with some results commented in. I'm assuming this is where my problem is, since album creation, etc, is working perfectly.
- (void)postPhotosToFacebook:(NSArray *)photos withAlbumID:(NSString *)albumID {
// Just testing with one image for now; I'll get in to multiple later..
UIImage *image = [photos lastObject];
FBRequest *imageUploadRequest = [FBRequest requestForUploadPhoto:image];
// CALL OUT: I'm guessing my problem is here - but I just don't know!
[[imageUploadRequest parameters] setValue:albumID
forKey:@"album"];
DebugLog(@"imageUploadRequest parameters: %@",[imageUploadRequest parameters]);
// Results of DebugLog:
// imageUploadRequest parameters: {
// album = 10151057144449632;
// picture = "<UIImage: 0xc6b6920>";
// }
// The album data returns correctly using FB's Graph API explorer tool,
// so I know it's a legit album.
// https://developers.facebook.com/tools/explorer
FBRequestConnection *connection = [[FBRequestConnection alloc] init];
[connection addRequest:imageUploadRequest
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error) {
DebugLog(@"Photo uploaded successfuly! %@",result);
// Results of DebugLog:
//
// Photo uploaded successfuly! {
// id = 10151057147399632;
// "post_id" = "511304631_10151057094374632";
// }
// Again, the photo at that ID shows up correctly, etc -
// BUT it's in the wrong album! It shows up in the default app album.
} else {
DebugLog(@"Photo uploaded failed :( %@",error.userInfo);
}
}];
[connection start];
}
Guesses: I'm guessing my problem is somewhere in how I'm assigning my album ID parameter to the image request.. but I have no clue.
You can see at this URL that this should be possible..
回答1:
Ahh SWEET. I figured this one out with some good old-fashioned, straight-up tinkering.
Given that there is no real instruction on how to apply the 'album' value to an FBRequest, I hesitate to call it a bug, but either way I needed a different method - in this case, simply creating a generic Open Graph HTTP request and filling in all the image info.
There is no real downside to this approach; except that you can't use the requestForUploadPhoto: convenience method.
Here is my implementation of the correct method (removed code is commented out):
- (void)postPhotosToFacebook:(NSArray *)photos withAlbumID:(NSString *)albumID {
UIImage *image = [photos lastObject];
// FBRequest *imageUploadRequest = [FBRequest requestForUploadPhoto:image];
//
// [[imageUploadRequest parameters] setValue:albumID
// forKey:@"album"];
//
// DebugLog(@"imageUploadRequest parameters: %@",[imageUploadRequest parameters]);
NSString *graphPath = [NSString stringWithFormat:@"%@/photos",albumID];
DebugLog(@"graphPath = %@",graphPath);
NSDictionary *parameters = [NSDictionary dictionaryWithObjectsAndKeys:
image,@"picture",
nil];
FBRequest *request = [FBRequest requestWithGraphPath:graphPath
parameters:parameters
HTTPMethod:@"POST"];
FBRequestConnection *connection = [[FBRequestConnection alloc] init];
[connection addRequest:request
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error) {
DebugLog(@"Photo uploaded successfuly! %@",result);
} else {
DebugLog(@"Photo uploaded failed :( %@",error.userInfo);
}
}];
[connection start];
}
来源：https://stackoverflow.com/questions/12486852/facebook-ios-sdk-cannot-specify-an-album-using-fbrequests-requestforuploadphot