问题
In objective c you can declare IBOutlets in below mentioned manner:
IBOutlet UIButton *btn1, *btn2, *btn3;
And you can able to bind these buttons in storyboard.
Now I want to use the same terminology in Swift. I want to declare these 3 buttons in same line rather than declaring these in 3 different lines. I can be able to declare these buttons in Swift as well using:
@IBOutlet var btn1, btn2, btn3: UIButton!
But my problem is I can only able to bind "btn1" in storyboard. "btn2" & "btn3" are not showing up in the Connection Inspector.
I don't want to use UIOutletCollection class.
回答1:
You have two options to get them in a single line.
The first is to use a Referencing Outlet Collection by defining this:
@IBOutlet var fields: Array<UITextField> = []
Then link your text fields to that. You can then access them as fields[0] and fields[1] respectively.
The other option is to define them in your file like this:
@IBOutlet weak var emailField: UITextField!
@IBOutlet weak var passwordField: UITextField!
Make your connections from Interface Builder, then edit the declarations to be in a single line like this:
@IBOutlet weak var emailField: UITextField!, passwordField: UITextField!
About you only options I'm afraid.
来源：https://stackoverflow.com/questions/39213467/multiple-iboutlets-in-same-line-of-same-type-in-swift