ios - Objects cleared when adding subLayer to UIView -

i'm have using custom uiview class, has textfields , labels contained within it, courtesy of storyboard. when class adds sublayer within class, contained objects on view disappear, made transparent or maybe become same color of uiview background. there property can set or method employ ensure objects remain visible?

thanks in advance!

here code:

class viewborder: uiview {      override init(frame: cgrect) {         super.init(frame: frame)     }      required init?(coder adecoder: nscoder) {         super.init(coder: adecoder)     }      override func drawrect(rect: cgrect) {         super.drawrect(rect)          // create rect 1x rounded corner         let rectpath = uibezierpath(roundedrect: bounds, byroundingcorners: uirectcorner.topleft, cornerradii: cgsize(width: 21.0, height: 21.0))         let rectlayer = cashapelayer()         rectlayer.shadowoffset = cgsize(width: -1.5, height: -1.5)         rectlayer.shadowopacity = 0.6         rectlayer.path = rectpath.cgpath         rectlayer.fillcolor = tintcolor.cgcolor         self.layer.addsublayer(rectlayer)     } } 

try this:

override func drawrect(rect: cgrect) {     super.drawrect(rect)      // create rect 1x rounded corner     let rectpath = uibezierpath(roundedrect: bounds, byroundingcorners: uirectcorner.topleft, cornerradii: cgsize(width: 21.0, height: 21.0))     let rectlayer = cashapelayer()     rectlayer.shadowoffset = cgsize(width: -1.5, height: -1.5)     rectlayer.shadowopacity = 0.6     rectlayer.path = rectpath.cgpath     rectlayer.fillcolor = tintcolor.cgcolor     rectlayer.zposition = -1 // added     self.layer.addsublayer(rectlayer) }