Question

I am drawing a polygon using the UIBezierPath class.

I have list of polygons. Now when I click any polygon I want to detect which polygon it is.
I think same concept you can see in UIMapView.

Answer 1

How about this?.

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{

    CGPoint p = [[touches anyObject] locationInView:self.view];

   // UIBezierPath *pathTodetect; Path of the shape that you want to detect. In a for loop you can check for all possible paths. 

    if(CGPathContainsPoint(pathTodetect.CGPath,nil, p, NO))
    {    

        NSLog(@"touched.");
        // the touch is inside the shape  
    }   

}