Question

See the code here

@interface StaticView : UIView {
    Properties *prop;
}
@property (retain) Properties *prop;
@end

and i am attaching this view via code

[super viewDidLoad];
StaticView *sView = [[StaticView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
sView.prop.glowIntensity = 0.85f;

[self.view addSubview:sView];

but in my drawRect Method of StaticView i am always getting prop.glowIntensity = 0.0000

- (void)drawRect:(CGRect)rect {
        NSLog(@"%f", prop.glowIntensity);
} 

Here is my Properties.h

@interface Properties : NSObject {
    UIColor *bgColor;
    UIColor *foreColor;
    float glowIntensity;
}
@property(retain) UIColor *bgColor;
@property(retain) UIColor *foreColor;
@property float glowIntensity;

-(void) initbgColor:(UIColor *)bgC foreColor:(UIColor *)fC glowIntensity:(float) gI;
@end

here is implementation Properties.m

#import "Properties.h"

@implementation Properties

@synthesize bgColor;
@synthesize foreColor;
@synthesize glowIntensity;

-(void) initbgColor:(UIColor *)bgC foreColor:(UIColor *)fC glowIntensity:(float) gI
{
    self.bgColor = bgC;
    self.foreColor = fC;
    self.glowIntensity = gI;

}
@end

How can i pass right value to my StaticView class?

Answer 1

It looks you do not create or set your view’s prop variable before using it – by default it equals nil and calling glowIntensity on nil object just returns 0.