How To Add Dynamic Font Size about Multi Device in Xcode Story Board

Question

I added autoLayout in storyBoard (w: Any, h: Any)

But because of fixed font size, The font size is same in all of devices (4, 4.7, 5.5 inch)

It looks nice i

Answer 1

Check the screen size and manipulate the font size based on it:

let screenSize = UIScreen.mainScreen().bounds.size

if screenSize.height < 568 {
    //Set font size for 4
} else if screenSize.height < 568 {
    //Set font size for 5
} else if screenSize.height < 568 {
    //Set font size for 6
} else {
    //Set font size for 6+
}

UPDATE:

Extend the UILabel class to setup your label:

extension UILabel { 
    func setupLabelDynamicSize(size size:CGFloat) {
        let screenSize = UIScreen.mainScreen().bounds.size

        if screenSize.height < 568 {
            //Set self.font equal size
        } else if screenSize.height < 568 {
            //Set self.font equal size + 1
        } else if screenSize.height < 568 {
            //Set self.font equal size + 2
        } else {
            //Set self.font equal size + 3
        }
    }
}

then wherever you have a label that you want with dynamic size just call:

labelObject.setupLabelForDynamicSize(size: 14)