UISearchBar increases navigation bar height in iOS 11

Question

I have my UISearchBar being part of the navigation bar like:

 let searchBar = UISearchBar()
 //some more configuration to the search bar
 .....
         


        

Answer 1

In my case, I have to decrease the textField's height 36pt -> 28pt.

So I tried to change the frame's height, layer's height. But the ways didn't work.

Finally, I found a solution that's the mask. I think, It's not a good way but it works.

    let textField              = searchBar.value(forKey: "searchField") as? UITextField
    textField?.font            = UIFont.systemFont(ofSize: 14.0, weight: .regular)
    textField?.textColor       = #colorLiteral(red: 0.1960784314, green: 0.1960784314, blue: 0.1960784314, alpha: 1)
    textField?.textAlignment   = .left

    if #available(iOS 11, *) {
        let radius: CGFloat           = 5.0
        let magnifyIconWidth: CGFloat = 16.0
        let inset                     = UIEdgeInsets(top: 4.0, left: 0, bottom: 4.0, right: 0)

        let path = CGMutablePath()
        path.addArc(center: CGPoint(x: searchBar.bounds.size.width - radius - inset.right - magnifyIconWidth, y: inset.top + radius), radius: radius, startAngle: .pi * 3.0/2.0, endAngle: .pi*2.0, clockwise: false)                        // Right top
        path.addArc(center: CGPoint(x: searchBar.bounds.size.width - radius - inset.right - magnifyIconWidth, y: searchBar.bounds.size.height - radius - inset.bottom), radius: radius, startAngle: 0, endAngle: .pi/2.0, clockwise: false)  // Right Bottom
        path.addArc(center: CGPoint(x: inset.left + radius, y: searchBar.bounds.size.height - radius - inset.bottom), radius: radius, startAngle: .pi/2.0, endAngle: .pi, clockwise: false)                                                  // Left Bottom
        path.addArc(center: CGPoint(x: inset.left + radius, y: inset.top + radius),  radius: radius, startAngle: .pi, endAngle: .pi * 3.0/2.0, clockwise: false)                                                                             // Left top

        let maskLayer      = CAShapeLayer()
        maskLayer.path     = path
        maskLayer.fillRule = kCAFillRuleEvenOdd

        textField?.layer.mask = maskLayer
    }

You can change the insets, if you want to change the textField's frame.