Swift Practice--UIButton

Import UIKit

Class Viewcontroller:uiviewcontroller {

The creation of the button

Uibuttontype.system: Front without icon, default text is blue, with touch highlighting effect

Uibuttontype.custom: Custom button, front without icon, default text is white, no touch highlighting

Uibuttontype.contactadd: Front with + icon button, default text blue, no touch highlighting

Uibuttontype.detaildisclosure: Front Belt! icon, default text blue, with touch highlighting

Uibuttontype.infodark: Ibid.

Uibuttontype.infolight: Ibid.

Override Func Viewdidload () {

Super.viewdidload ()

Let Button:uibutton = UIButton (type:. Custom)

Button.frame = CGRect (x:100, y:100, width:100, height:100)

Button.settitle ("button", for:. Normal)

Self.view.addSubview (Button)

Button.backgroundcolor = uicolor.red

Add a Click event

Button.addtarget (Self, Action: #selector (tapped), for:. Touchupinside)

Button.addtarget (Self, Action: #selector (TOUCHBTN (sender:)), for:. Touchupinside)

Button text too long set Titlelabel Linebreakmode property adjustment

Button.titlelabel?. Linebreakmode =. byclipping

Linebreakmode supports several styles as follows

. Bytruncatinghead: Omit the head text, omit the part with ... Replace

. Bytruncatingmiddle: Omit middle section text

. Bytruncatingtail: Omit trailing text

. byclipping: Truncate the extra part directly

. Bywordwrapping: Line wrap (split by word)

. Bycharwrapping: Line Wrap (split by character)

Note: When you set the line wrap (bycharwrapping or bywordwrapping), we can manually wrap it by adding \ n When setting the title

}

Func tapped () {

Print ("Test")

}

Func touchbtn (Sender:uibutton) {

If let text = Sender.titlelabel?. Text {

Print (text)

}

}

Override Func didreceivememorywarning () {

Super.didreceivememorywarning ()

Dispose of any resources the can be recreated.

}

}

Swift Practice--UIButton