Update For Blog Post

Author: David Benko

.DS_Store

@@ -97,6 +97,11 @@ - (void)drawPath{
         return;
     };
 
+    //Remove old layers
+    for(CALayer *layer in self.layer.sublayers)
+        if([layer isMemberOfClass:[CAShapeLayer class]])
+            [layer removeFromSuperlayer];
+    
     bool drawAnimatedPath = true;
     bool drawNonAnimatedPath = true;