iOS7 Objective C Camera Code

gistfile1.txt

- (IBAction)cameraBarButtonItemPressed:(UIBarButtonItem *)sender {
    
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
        picker.sourceType = UIImagePickerControllerSourceTypeCamera;
    }else if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum]){
        picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
    }
    [self presentViewController:picker animated:true completion:nil];
}

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    NSLog(@"Finished Picking");
    UIImage *image = info[UIImagePickerControllerEditedImage];
    if(!image){
        image = info[UIImagePickerControllerOriginalImage];
    }
    [self.photos addObject:[self photoFromImage:image]];
    [self.collectionView reloadData];
    [self dismissViewControllerAnimated:true completion:nil];
}

- (void) imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    NSLog(@"Cancel Clicked");
    [self dismissViewControllerAnimated:true completion:nil];
}

- (Photo *)photoFromImage:(UIImage *)image
{
    Photo *photo = [NSEntityDescription insertNewObjectForEntityForName:@"Photo" inManagedObjectContext:[TWCoreDataHelper managedObjectContext]];
    photo.image = image;
    photo.date = [NSDate date];
    photo.albumBook = self.album;
    
    NSError *error = nil;
    if(![[photo managedObjectContext] save:&error]){
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Erro!" delegate:nil cancelButtonTitle:@"Cacel" otherButtonTitles:nil, nil];
        [alertView show];
    }
    return photo;
}



@implementation TWPictureDataTransformer
- (Class)transformedValueClass
{
    return [NSData class];
}

- (BOOL)allowsReververseTransformation
{
    return YES;
}

- (id)transformedValue:(id)value
{
    return UIImagePNGRepresentation(value);
}

- (id)reverseTransformedValue:(id)value
{
    UIImage *image = [UIImage imageWithData:value];
    return image;
}
@end