saving image to custom photo album in iOS7 - ios

Question

I'm trying to save a photo taken with the camera to a custom photo album in iOS7.
my code looks like this:
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
__block ALAssetsGroup* folder;
[library enumerateGroupsWithTypes:ALAssetsGroupAlbum
usingBlock:^(ALAssetsGroup *group, BOOL *stop)
{
if ([[group valueForProperty:ALAssetsGroupPropertyName] isEqualToString:#"UrbanAlphabets"])
{
folder = group;
}
}
failureBlock:^(NSError* error)
{
// Error handling.
}];
[library writeImageToSavedPhotosAlbum:(__bridge CGImageRef)(image)
metadata:nil
completionBlock:^(NSURL* assetURL, NSError* error)
{
if (error.code == 0)
{
// Get the asset
[library assetForURL:assetURL
resultBlock:^(ALAsset *asset)
{
// Assign the photo to the album
[folder addAsset:asset];
NSLog(#"success");
}
failureBlock:^(NSError* error)
{
// Error handling.
NSLog(#"error1");
}];
}
else
{
// Error handling.
NSLog(#"error");
}
}];
and actually the console logs "success", so I guess everything should be fine, but it doesn't put the photo into the folder... I pretty much copypasted the code from here
http://www.ggkf.com/iphone/save-a-photo-to-a-folder-in-photo-library
any ideas?

Answer 1

this made it work
//write to photo library
NSString *albumName=#"Urban Alphabets";
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
__block ALAssetsGroup* groupToAddTo;
[library enumerateGroupsWithTypes:ALAssetsGroupAlbum
usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
if ([[group valueForProperty:ALAssetsGroupPropertyName] isEqualToString:albumName]) {
groupToAddTo = group;
}
}
failureBlock:^(NSError* error) {
}];
CGImageRef img = [croppedImage CGImage];
[library writeImageToSavedPhotosAlbum:img
metadata:nil
completionBlock:^(NSURL* assetURL, NSError* error) {
if (error.code == 0) {
// try to get the asset
[library assetForURL:assetURL
resultBlock:^(ALAsset *asset) {
// assign the photo to the album
[groupToAddTo addAsset:asset];
}
failureBlock:^(NSError* error) {
}];
}
else {
}
}];