Use of Swift-button (UIButton)

1. The creation of the button. 1. There are four types of buttons:

uibuttontype . Contactadd: Front with "+" icon button, default text color is blue, with touch highlighting effect uibuttontype uibuttontypeuibuttontype uibuttontype uibuttontype             

//创建一个ContactAdd类型的按钮let button:UIButton = UIButton(type:.ContactAdd)//设置按钮位置和大小button.frame=CGRectMake(10, 150, 100, 30)//设置按钮文字button.setTitle("按钮", forState:UIControlState.Normal)self.view.addSubview(button);

2. For the Custom Custom type button, the code can be simplified to:

let button = UIButton(frame:CGRectMake(10, 150, 100, 30))

3. Text setting of the button

button.setTitle("普通状态", forState:UIControlState.Normal) //普通状态下的文字button.setTitle("触摸状态", forState:UIControlState.Highlighted) //触摸状态下的文字button.setTitle("禁用状态", forState:UIControlState.Disabled) //禁用状态下的文字

4. Setting the button text color

button.setTitleColor(UIColor.blackColor(),forState: .Normal) //普通状态下文字的颜色button.setTitleColor(UIColor.greenColor(),forState: .Highlighted) //触摸状态下文字的颜色button.setTitleColor(UIColor.grayColor(),forState: .Disabled) //禁用状态下文字的颜色

5. Setting the color of the button text shadow

button.setTitleShadowColor(UIColor.greenColor(),forState:.Normal) //普通状态下文字阴影的颜色button.setTitleShadowColor(UIColor.yellowColor(),forState:.Highlighted) //普通状态下文字阴影的颜色button.setTitleShadowColor(UIColor.grayColor(),forState:.Disabled) //普通状态下文字阴影的颜色

6. button background Color setting

button.backgroundColor=UIColor.blackColor()

7. Setting of the button text icon

button.setImage(UIImage(named:"icon1"),forState:.Normal)  //设置图标button.adjustsImageWhenHighlighted=false //使触摸模式下按钮也不会变暗button.adjustsImageWhenDisabled=false //使禁用模式下按钮也不会变暗

8. Set the button background image

button.setBackgroundImage(UIImage(named:"background1"),forState:.Normal)

9. Button Touch Click event Response

//do not pass touch objects (i.e. clicked button) Button.addtarget (touchupinside) func tapped  () {print ( "tapped")}//passes the touch object (that is, the button clicked), you need to define the action parameter, with the method name followed by a colon button.addtarget (self, Action: #selector (tapped (_:)), Forcontrolevents:. touchupinside) func tappedprint (button.titleforstate (.                

Common types of touch events:

TouchDown：单点触摸按下事件，点触屏幕TouchDownRepeat：多点触摸按下事件，点触计数大于1，按下第2、3或第4根手指的时候TouchDragInside：触摸在控件内拖动时TouchDragOutside：触摸在控件外拖动时TouchDragEnter：触摸从控件之外拖动到内部时TouchDragExit：触摸从控件内部拖动到外部时TouchUpInside：在控件之内触摸并抬起事件TouchUpOutside：在控件之外触摸抬起事件TouchCancel：触摸取消事件，即一次触摸因为放上太多手指而被取消，或者电话打断

Richard_yu
Links: http://www.jianshu.com/p/310e3c3d00cd
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Use of Swift-button (UIButton)