title: UIBezierPath not drawing in drawRect
body: <p>I have the following code in my UIView drawRect:</p>
  
  <pre><code>- (void)drawRect:(CGRect)rect {
  
     UIBezierPath *trackPath = [UIBezierPath bezierPath];
  [trackPath addQuadCurveToPoint:CGPointMake(10, 30) controlPoint:CGPointMake(0, 0)];
  [trackPath stroke];
  
     }
  </code></pre>
  
  <p>however I am not seeing any path drawn. What am I doing wrong?</p>