ios - Adding multiple sublayers to UIView will only display one -

trying add bottom border login system, have used following code:

var bottomborder = calayer() bottomborder.frame = cgrectmake(0.0, useremailaddresstextfield.frame.size.height - 1, useremailaddresstextfield.frame.size.width, 1.0) bottomborder.backgroundcolor = uicolor.blackcolor().cgcolor useremailaddresstextfield.layer.addsublayer(bottomborder) 

i trying password textfield well. have used various amount of techniques none seem work.

first attempt: adding same code again, shows bottom border second bar.

second attempt: tried same thing different variable being bottombordertwo , replicating code, wouldn't work either. solutions?

create common function

func addbottomlayertotheview(view:uiview) {     var bottomborder = calayer()     bottomborder.frame = cgrectmake(0.0, view.frame.size.height - 1, view.frame.size.width, 1.0)     bottomborder.backgroundcolor = uicolor.blackcolor().cgcolor     view.layer.addsublayer(bottomborder) } 

call function after creating textfields or other views need bottom layer like:

in viewdidload()

addbottomlayertotheview(textfield)

addbottomlayertotheview(textfield2)

addbottomlayertotheview(anyview)