Example of how to build a fake nav bar. This creates and adds a nav bar to the main canvas, it also shows how to create a complex object by adding subviews to the object itself, and not the canvas.

C4WorkSpace.m

//
//  C4WorkSpace.m
//  C4Code
//
//  Created by Travis Kirton on 11/4/2013.
//

//Defines set in "stone" a value for a variable
//These are best to put in C4Defines.h, but here they suffice for this example
#define UA_NAV_BAR_COLOR    [UIColor colorWithRed:0.96875 green:0.96875 blue:0.96875 alpha:1]
#define UA_NAV_CTRL_COLOR   [UIColor colorWithRed:0 green:0 blue:0 alpha:0]
#define UA_BUTTON_COLOR     [UIColor colorWithRed:0.8984275 green:0.8984275 blue:0.8984275 alpha:1]
#define UA_TYPE_COLOR       [UIColor colorWithRed:0.19921875 green:0.19921875 blue:0.19921875 alpha:1]
#define UA_OVERLAY_COLOR    [UIColor colorWithRed:0.19921875 green:0.19921875 blue:0.19921875 alpha:0.5]
#define UA_HIGHLIGHT_COLOR  [UIColor colorWithRed:0.757 green:0.964 blue:0.617 alpha:0.5]
#define UA_DARKEN_COLOR     [UIColor colorWithRed:0.19921875 green:0.19921875 blue:0.19921875 alpha:0.8]
#define UA_GREY_TYPE_COLOR  [UIColor colorWithRed:0.3984375 green:0.3984375 blue:0.3984375 alpha:1.0]

#define TOP_BAR_Y 0.0f
#define TOP_BAR_HEIGHT 44.0f

@interface C4WorkSpace ()
@property (nonatomic) C4Shape *topNavBar;
@end

@implementation C4WorkSpace

-(void)setup {
    [self createNavBar];
}

-(void)createNavBar {
    //--------------------------------------------------
    //underlying rect
    //--------------------------------------------------
    self.topNavBar = [C4Shape rect:CGRectMake(0, TOP_BAR_Y, self.canvas.width, TOP_BAR_HEIGHT)];
    self.topNavBar.fillColor=UA_NAV_BAR_COLOR;
    self.topNavBar.lineWidth=0;
    [self.canvas addShape:self.topNavBar];
    
    //center label
    C4Label *titleLabel = [C4Label labelWithText:@"A Homemade NavBar"];
    titleLabel.center = self.topNavBar.center;
    [self.topNavBar addLabel:titleLabel];        //add the label to the nav bar
    
    //--------------------------------------------------
    //LEFT
    //--------------------------------------------------
    //back text
    C4Label *backLabel=[C4Label labelWithText:@"Back"];
    backLabel.center=CGPointMake(44, self.topNavBar.center.y);
    [self.topNavBar addLabel:backLabel];
    
    //back icon
    C4Image *backButtonImage = [C4Image imageNamed:@"darkBluePattern"]; //no extension!
    backButtonImage.frame = CGRectMake(0, 0, 12.2, 36);
    backButtonImage.center=CGPointMake(10, self.topNavBar.center.y);
    [self.topNavBar addImage:backButtonImage];
    
    [self.canvas addShape:self.topNavBar];  //add ONLY the topNavBar
}

-(BOOL)prefersStatusBarHidden {
    return YES;
}

@end