 That's a FloatingActionButton and you can set its position with autolayout

#Requirements

 - iOS 8.0+
 - Swift 3
 - Xcode 8+

#Demo
 ![](https://github.com/Lawlietop/KYFloatingActionButton/blob/master/Demo/F9SuJlUGqg.gif)
 
#Usage 

### Step 1
 Drag a UIView into storyboard or xib 
 
 
### Step 2 
  Give it constraint without width and height because it has a fixed width and height 55 ,Recommend adjusting height and width to 55 so that you could more easily set layout
 
 
### Step 3 
  You can change the UIView bagroundcolor to adjust the FloatingActionButtonColor
 
 
### Step 4 
 
* kinds of animation 
```swift
enum openButtonType {
        case slideUp
        case slideDown
        case popUp
        case popDown
    }
```
* Demo Code

```swift
         
        button.kyDelegate = self
        button.openType = .popUp
        button.plusColor = UIColor.black     //  Change plus color
        button.fabTitleColor = UIColor.white    // Change title color
        button.add(color:UIColor.red)
        button.add(color:UIColor.orange)
        button.add(color: UIColor.brown, title: "Hello")
        button.add(color: UIColor.green, title: "Are you ready ?", image: UIImage(named: "Map Filled-50.png")!) { (item) in
            let alert = UIAlertController(title: "Hello", message: "Are you ok?", preferredStyle: .alert)
            let ok = UIAlertAction(title: "ok", style: .default, handler: nil)
            alert.addAction(ok)
            self.present(alert, animated: true, completion: nil)
        }
            
            // add a itemButton with closure 、 image 、 title and buttoncolor 
            
```
### Step 5
*  You do something when button opening and closing with delegate (KYButtonDelegate) function , they are both optional function below

```swift

func openKYButton(_ button: KYButton) {

}

func closeKYButton(_ button: KYButton) {

}

```

#Author
- Shane Lin 
- Email:lawlietop@gmail.com


#License
MIT,see License
