init(image:style:target:action:)

Creates an item using the specified image, style, target, and action.

Declaration

convenience init(image: UIImage?, style: UIBarButtonItem.Style, target: Any?, action: Selector?)

image:
The item’s image. If nil, an image doesn’t appear.
The images displayed on the bar derive from this image. If this image is too large to fit on the bar, it’s scaled to fit. Typically, the size of a toolbar and navigation bar image is 20 x 20 points. The system uses the alpha values in the source image to create the images, ignoring opaque values.
style:
The style of the item. For possible values, see Style Swift.enum.
target:
The object that receives the action message.
action:
The action to send to target when a person selects this item.

A newly initialized UIBarButtonItem.