confusion on UIView, its class and UIViewController - xcode iOS objective-c - ios

Question

In storyboard, I dragged out UIView onto my ViewController.
Assign UIView to custom class "myUIView" (which will be myUIView.h and myUIView.m)
Set up ViewController like this:
ViewController.h
#import <UIKit/UIKit.h>
#interface ScheduleViewingVC : UIViewController
//for the dragged-out UIView
#property (strong, nonatomic) IBOutlet UIView *myUIViewOutlet;
//to do some drawings on myUIViewOutlet
#property (strong, nonatomic) myUIView *myUIViewClass;
#end
ViewController.m
#import "ViewController.h"
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//resize my UIView into a square
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGRect squareFrame = CGRectMake(0, 0, screenWidth, screenWidth);
_myUIViewOutlet = [[UIView alloc] initWithFrame:squareFrame];
}
#end
If I run this project,
- (void)drawRect:(CGRect)rect {}
inside myUIViewClass.m runs automatically since.. it's linked to myUIViewOutlet.
Now, I need send some data to myUIViewClass linked to myUIViewOutlet from ViewController.
It doesn't seem right to send data to myUIViewOutlet from ViewController..
How can I make this work correctly? Should I send data to myUIViewClass?
Can anyone make this clear for me? Thank you!

Answer 1

Sending data to myUIViewClass will not be right. Instead you can implement some Protocol (Delegate, DataSource kind) of mechanism.
What you can do is as follows:
Define some Custom Protocol say myUIViewProtocol in your myUIView class.
Define a delegate and methods you need.
Let your ViewController conform to this protocol and override this methods.
This approach is same as
UITableView.
Hope this helps.