ios - Weird swift behaviour on UITextField -

scenario: i'm setting text font , size uitextfield. have placeholders. the code bellow in uiviewcontroller:

        let font = uifont(name: "flamasemicondensed-book", size: 18)          let attributesdictionary = [nsforegroundcolorattributename: defaultsystemcolor.darkred]          // textfileds without borders (and placeholders)         usernametextfield.borderstyle = uitextborderstyle.none         usernametextfield.font = font         usernametextfield.textcolor = defaultsystemcolor.darkred         usernametextfield.attributedplaceholder = nsattributedstring(string: "email", attributes: attributesdictionary) 

i'm configuring (in appdelegate) global ui setting, formats of uilabels font size. the code bellow in globaluisettings class:

    let font = uifont(name: "flamasemicondensed-book", size: 13)!     var labelappearace = uilabel.appearance()     labelappearace.font = font 

what's weird in here:

when uitextfield selected , i'm typing format 1 set text field (the placeholder ok too).

but when leave field assumes behaviour of uilabel.

i know because if comment uilabel format textfield works properly.

does have idea why happens?

try changing let font let labelfont because 'font' global. might affecting.