Storyboard and custom init - objective-c

Question

I recently tried working with the MainStoryboard.storyboard within Xcode and so far It's going pretty good and I'm wondering why I've never used it before. While playing with some code I bumped into an obstacle and I don't know how to resolve this.
When I alloc and init a new ViewController (with a custom init I declared in the ViewControllers class) I would do something like this:
ViewController *myViewController = [[ViewController alloc] initWithMyCustomData:myCustomData];
Then after that I could do something like:
[self presentViewController:myViewController animated:YES completion:nil];
When I'm working with a storyboard I'm learnt that switching to a standalone ViewController requires an Identifier.
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
ViewController *myViewController = [storyboard instantiateViewControllerWithIdentifier:#"MyViewControllerIdentifier"];
[self presentViewController:myViewController animated:YES completion:nil];
How can I still use my custom initialization for myViewController while making use of a storyboard?
Is it ok to just do something like this:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
ViewController *myViewController = [storyboard instantiateViewControllerWithIdentifier:#"MyViewControllerIdentifier"];
myViewController.customData = myCustomData;
[self presentViewController:myViewController animated:YES completion:nil];
//MyViewController.m
- (id) initWithMyCustomData:(NSString *) data {
if (self = [super init]) {
iVarData = data;
}
return self;
}

Answer 1

I would just create a method which does the custom data loading.
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
MyViewController *myViewController = [storyboard instantiateViewControllerWithIdentifier:#"MyViewControllerIdentifier"];
[myViewController loadCustomData:myCustomData];
[self presentViewController:myViewController animated:YES completion:nil];
If all your initWithCustomData method does is set one instance variable, you should just set it manually (no custom inits or extra methods required):
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
MyViewController *myViewController = [storyboard instantiateViewControllerWithIdentifier:#"MyViewControllerIdentifier"];
myViewController.iVarData = myCustomData;
[self presentViewController:myViewController animated:YES completion:nil];

Answer 2

You can instantiate viewcontroller in -init method.
- (instancetype)init
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:[NSBundle mainBundle]];
self = [storyboard instantiateViewControllerWithIdentifier:#"MyViewController"];
if(self)
{
//default initialization
}
return self;
}
and the in your custom init method
- (instancetype)initWithImages:(NSArray *)images
{
self = [self init];
if(self)
{
self.images = images;
}
return self;
}

Answer 3

My version:
- (instancetype)initWithData (NSArray *)someData
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:[NSBundle mainBundle]];
self = [storyboard instantiateViewControllerWithIdentifier:#"MyViewController"];
if(self)
{
//default initialization
}
return self;
}
...one initializer ;)