Swift changes the navigation bar title to a custom view (picture, button, paragraph selection, and so on)

The default navigation bar Uinavigationcontroller's caption is text, and the Navigationitem.titleview property makes it easy to replace it with a custom UIView view.

1, using the picture as the title

1 2	let image =  UIImage (named:  "logo" ) self .navigationItem.titleView =  UIImageView (image: image)

2, using the button as the caption

Import Uikit

Class Viewcontroller:uiviewcontroller {

Override Func Viewdidload () {
Super.viewdidload ()

Let button = UIButton (frame:cgrectmake (0, 0, 110, 110))
Button.setimage (UIImage (named: "Btn3"), Forstate:. Normal)
Button.addtarget (Self,action:selector ("titletapped"), forControlEvents:. Touchupinside)
Self.navigationItem.titleView = button
}

Func titletapped () {
Print ("tapped")
}

Override Func didreceivememorywarning () {
Super.didreceivememorywarning ()
}
}

3, use the segmented selection control as the caption

Import Uikit

Class Viewcontroller:uiviewcontroller {

Override Func Viewdidload () {
Super.viewdidload ()

Let items=["Phone", "SMS"] as [Anyobject]
Let Segmented=uisegmentedcontrol (Items:items)
Segmented.center=self.view.center
Segmented.selectedsegmentindex=0///default selected item 1th
Segmented.addtarget (Self, Action: "Segmentdidchange:",
forControlEvents:UIControlEvents.ValueChanged)//Add Value change monitor
Self.navigationItem.titleView = segmented
}

Func Segmentdidchange (Segmented:uisegmentedcontrol) {
Get an index of an option
Print (Segmented.selectedsegmentindex)
Get the selected text
Print (Segmented.titleforsegmentatindex (segmented.selectedsegmentindex))
}

Override Func didreceivememorywarning () {
Super.didreceivememorywarning ()
}
}