unable to view the line on swift

Question

I am trying to add a horizontal line that starts from left side of the screen to the right. But the line isn't visible.

let horizontalLine : CGRect = CGRectMake(45, height-50, 45, 55)
var testView : UIView = UIView(frame: horizontalLine)
self.view.addSubview(testView)

Answer 1

Try with this

let horizontalLine : CGRect = CGRectMake(45, 100-50, 45, 55)
//check value of height. this height>=(status bar height(20)+navigation bar height (44))
    var testView : UIView = UIView(frame: horizontalLine)
    testView.backgroundColor = UIColor.redColor()
    self.view.addSubview(testView)