How to change variable of custom UIView from ViewController - ios

Question

I have created a custom UIView (ProgressView) where I draw a shape imported via StyleKit from PaintCode.
Below are the codes. I have declared instance variable property in my custom UIView and when I try to change property from ViewController, It does not work.
ProgressView.h
#import <UIKit/UIKit.h>
#interface ProogressView : UIView
#property (nonatomic) float daysFraction;
#property (nonatomic) float pagesFraction;
#end
ProgressView.m
#import "ProgressView.h"
#import "StyleKitName.h"
#import "ViewController.h"
#implementation ProgressView
#synthesize daysFraction = _daysFraction;
#synthesize pagesFraction = _pagesFraction;
- (void)drawRect:(CGRect)rect {
// Drawing code
[StyleKitName drawCanvas1WithDaysFraction:self.daysFraction pageFraction:self.pagesFraction];
}
-(void)awakeFromNib {
[super awakeFromNib];
self.pagesFraction = 0;
self.daysFraction = 0;
}
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
#end
*ViewController.m**
#import "ViewController.h"
#import "ButtonAnimation.h"
#import "ProgressView.h"
#import "StyleKitName.h"
#interface ViewController ()
#property (weak, nonatomic) IBOutlet ButtonAnimation *buttonView;
#property (weak, nonatomic) IBOutlet UIButton *actionButton;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
ProgressView *new =[[ ProgressView alloc]init];
new.daysFraction = 0.7f; // here I am setting value to variable in custom view ProgressView but not working.
}
- (IBAction)animateTheButton:(id)sender {
self.buttonView.layer.backgroundColor = [UIColor clearColor].CGColor;
[self.buttonView addErrorAnimation];
}
#end

Answer 1

You need to add this view to UIViewController's view:
[self.view addSubview:progressView];
Later, you must also set a frame. Eg
[progressView setFrame:self.view.bounds];
You may do it in viewDid/WillLayoutSubviews method to change it on rotation / window resize event.
BTW, do not name your view as new, it's horrible. Such name doesn't even tell what kind of variable is it.