ios - How do I change the initial tab bar selection in swift? -


in trying find solution came across answer:

[ https://stackoverflow.com/a/10441200/4856759 ]

it seems accomplish want to, in objective c:

uitabbarcontroller *tabbar = (uitabbarcontroller *)self.window.rootviewcontroller; tabbar.selectedindex = 0;

how do in swift? first attempt returns error:

cannot convert expression's type '$t4??' type 'uitabbarcontroller'

var tabbar: uitabbarcontroller = self.window?.rootviewcontroller tabbar.selectedindex = 1

worked me! need add as! uitabbarcontroller:

var tabbar: uitabbarcontroller = self.window?.rootviewcontroller as! uitabbarcontroller tabbar.selectedindex = 1

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