Question

I am looking to display number line in my application

How this can be done? I also want to control number like programatically

Answer 1

you can use views with different sizes and background colours. Use #define -s for the fixed sizes.

You should have 3 functions:
one that draws the horizontal red/blue rects

-(UIView *) drawHorizontal:(CGRect)frame withColor:(UIColor)theColor;

one that draws vertical spacers and labels underneath. Iterate for whole line width.

-(UIView *) drawVertical:(CGPoint)centerPosition withLabel:(int)number;

Your number line should be stored as an NSArray of NSDictionaries containing the position (index) and length of the horizontal red/blue lines.

Hope this helps.