I just found out that, I've a floating button in a tableView. When I'm trying to scroll the tableView, the floating button doesn't scroll with tableView, it just stick to its position. How do I fix this problem?

Hey,

Im getting no less than 7 fatal errors and 7 warnings when trying to build after importing. Im using Objective C, and importing the swift file into my app - but thats not the problem. the problems are all within the Pod project itself - i get 7 "Method does not override any method from its superclass" - is there a fix? or did i just suck at importing? :-)

I installed it by CocoaPods. I added the following line to your Podfile: pod 'LiquidFloatingActionButton', :git => 'https://github.com/yoavlt/LiquidFloatingActionButton.git', :branch => 'swift-2.0' And installed it. But run it, it must crash. This is a error: I want to help!!

I would like to know when the floating action cell is tapped so that i can close it programmatically. However, adding a tap gesture recognizer to the floating cell 'breaks' it. In the sense that it wont open. Is this a know issue? is there a fix around it?

Hi,

See the attached video... I changed your Example code to use AutoLayout... doesn't work well with animations!

Animation Video --> http://cl.ly/151O3K0F3i03 Your Example code modified to worth with AutoLayout --> http://cl.ly/2N0T2t0s323g

As you can see there are 6 errors within the LiquidFloatingActionButton.swift file. I have also included the file below.

// // LiquidFloatingActionButton.swift // Pods // // Created by Takuma Yoshida on 2015/08/25. // //

import Foundation import QuartzCore

// LiquidFloatingButton DataSource methods @objc public protocol LiquidFloatingActionButtonDataSource { func numberOfCells(liquidFloatingActionButton: LiquidFloatingActionButton) -> Int func cellForIndex(index: Int) -> LiquidFloatingCell }

@objc public protocol LiquidFloatingActionButtonDelegate { // selected method optional func liquidFloatingActionButton(liquidFloatingActionButton: LiquidFloatingActionButton, didSelectItemAtIndex index: Int) }

public enum LiquidFloatingActionButtonAnimateStyle : Int { case Up case Right case Left case Down }

@IBDesignable public class LiquidFloatingActionButton : UIView {

private let internalRadiusRatio: CGFloat = 20.0 / 56.0
public var cellRadiusRatio: CGFloat      = 0.38
public var animateStyle: LiquidFloatingActionButtonAnimateStyle = .Up {
    didSet {
        baseView.animateStyle = animateStyle
    }
}
public var enableShadow = true {
    didSet {
        setNeedsDisplay()
    }
}

public var delegate:   LiquidFloatingActionButtonDelegate?
public var dataSource: LiquidFloatingActionButtonDataSource?

public var responsible = true
public var isOpening: Bool  {
    get {
        return !baseView.openingCells.isEmpty
    }
}
public private(set) var isClosed: Bool = true

@IBInspectable public var color: UIColor = UIColor(red: 82 / 255.0, green: 112 / 255.0, blue: 235 / 255.0, alpha: 1.0) {
    didSet {
        baseView.color = color
    }
}

@IBInspectable public var image: UIImage? {
    didSet {
        if image != nil {
            plusLayer.contents = image!.CGImage
            plusLayer.path = nil
        }
    }
}

@IBInspectable public var rotationDegrees: CGFloat = 45.0

private var plusLayer   = CAShapeLayer()
private let circleLayer = CAShapeLayer()

private var touching = false

private var baseView = CircleLiquidBaseView()
private let liquidView = UIView()

public override init(frame: CGRect) {
    super.init(frame: frame)
    setup()
}

required public init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
    setup()
}

private func insertCell(cell: LiquidFloatingCell) {
    cell.color  = self.color
    cell.radius = self.frame.width * cellRadiusRatio
    cell.center = self.center.minus(self.frame.origin)
    cell.actionButton = self
    insertSubview(cell, aboveSubview: baseView)
}

private func cellArray() -> [LiquidFloatingCell] {
    var result: [LiquidFloatingCell] = []
    if let source = dataSource {
        for i in 0..<source.numberOfCells(self) {
            result.append(source.cellForIndex(i))
        }
    }
    return result
}

// open all cells
public func open() {

    // rotate plus icon
    CATransaction.setAnimationDuration(0.8)
    self.plusLayer.transform = CATransform3DMakeRotation((CGFloat(M_PI) * rotationDegrees) / 180, 0, 0, 1)

    let cells = cellArray()
    for cell in cells {
        insertCell(cell)
    }

    self.baseView.open(cells)

    self.isClosed = false
}

// close all cells
public func close() {

    // rotate plus icon
    CATransaction.setAnimationDuration(0.8)
    self.plusLayer.transform = CATransform3DMakeRotation(0, 0, 0, 1)

    self.baseView.close(cellArray())

    self.isClosed = true
}

// MARK: draw icon
public override func drawRect(rect: CGRect) {
    drawCircle()
    drawShadow()
}

/// create, configure & draw the plus layer (override and create your own shape in subclass!)
public func createPlusLayer(frame: CGRect) -> CAShapeLayer {

    // draw plus shape
    let plusLayer = CAShapeLayer()
    plusLayer.lineCap = kCALineCapRound
    plusLayer.strokeColor = UIColor.whiteColor().CGColor
    plusLayer.lineWidth = 3.0

    let path = UIBezierPath()
    path.moveToPoint(CGPoint(x: frame.width * internalRadiusRatio, y: frame.height * 0.5))
    path.addLineToPoint(CGPoint(x: frame.width * (1 - internalRadiusRatio), y: frame.height * 0.5))
    path.moveToPoint(CGPoint(x: frame.width * 0.5, y: frame.height * internalRadiusRatio))
    path.addLineToPoint(CGPoint(x: frame.width * 0.5, y: frame.height * (1 - internalRadiusRatio)))

    plusLayer.path = path.CGPath
    return plusLayer
}

private func drawCircle() {
    self.circleLayer.cornerRadius = self.frame.width * 0.5
    self.circleLayer.masksToBounds = true
    if touching && responsible {
        self.circleLayer.backgroundColor = self.color.white(0.5).CGColor
    } else {
        self.circleLayer.backgroundColor = self.color.CGColor
    }
}

private func drawShadow() {
    if enableShadow {
        circleLayer.appendShadow()
    }
}

// MARK: Events
public override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    self.touching = true
    setNeedsDisplay()
}

public override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
    self.touching = false
    setNeedsDisplay()
    didTapped()
}

public override func touchesCancelled(touches: Set<UITouch>?, withEvent event: UIEvent?) {
    self.touching = false
    setNeedsDisplay()
}

public override func hitTest(point: CGPoint, withEvent event: UIEvent?) -> UIView? {
    for cell in cellArray() {
        let pointForTargetView = cell.convertPoint(point, fromView: self)

        if (CGRectContainsPoint(cell.bounds, pointForTargetView)) {
            if cell.userInteractionEnabled {
                return cell.hitTest(pointForTargetView, withEvent: event)
            }
        }
    }

    return super.hitTest(point, withEvent: event)
}

// MARK: private methods
private func setup() {
    self.backgroundColor = UIColor.clearColor()
    self.clipsToBounds = false

    baseView.setup(self)
    addSubview(baseView)

    liquidView.frame = baseView.frame
    liquidView.userInteractionEnabled = false
    addSubview(liquidView)

    liquidView.layer.addSublayer(circleLayer)
    circleLayer.frame = liquidView.layer.bounds

    plusLayer = createPlusLayer(circleLayer.bounds)
    circleLayer.addSublayer(plusLayer)
    plusLayer.frame = circleLayer.bounds
}

private func didTapped() {
    if isClosed {
        open()
    } else {
        close()
    }
}

public func didTappedCell(target: LiquidFloatingCell) {
    if let _ = dataSource {
        let cells = cellArray()
        for i in 0..<cells.count {
            let cell = cells[i]
            if target === cell {
                delegate?.liquidFloatingActionButton?(self, didSelectItemAtIndex: i)
            }
        }
    }
}

}

class ActionBarBaseView : UIView { var opening = false func setup(actionButton: LiquidFloatingActionButton) { }

func translateY(layer: CALayer, duration: CFTimeInterval, f: (CABasicAnimation) -> ()) {
    let translate = CABasicAnimation(keyPath: "transform.translation.y")
    f(translate)
    translate.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
    translate.removedOnCompletion = false
    translate.fillMode = kCAFillModeForwards
    translate.duration = duration
    layer.addAnimation(translate, forKey: "transYAnim")
}

}

class CircleLiquidBaseView : ActionBarBaseView {

let openDuration: CGFloat  = 0.6
let closeDuration: CGFloat = 0.2
let viscosity: CGFloat     = 0.65
var animateStyle: LiquidFloatingActionButtonAnimateStyle = .Up
var color: UIColor = UIColor(red: 82 / 255.0, green: 112 / 255.0, blue: 235 / 255.0, alpha: 1.0) {
    didSet {
        engine?.color = color
        bigEngine?.color = color
    }
}

var baseLiquid: LiquittableCircle?
var engine:     SimpleCircleLiquidEngine?
var bigEngine:  SimpleCircleLiquidEngine?
var enableShadow = true

private var openingCells: [LiquidFloatingCell] = []
private var keyDuration: CGFloat = 0
private var displayLink: CADisplayLink?

override func setup(actionButton: LiquidFloatingActionButton) {
    self.frame = actionButton.frame
    self.center = actionButton.center.minus(actionButton.frame.origin)
    self.animateStyle = actionButton.animateStyle
    let radius = min(self.frame.width, self.frame.height) * 0.5
    self.engine = SimpleCircleLiquidEngine(radiusThresh: radius * 0.73, angleThresh: 0.45)
    engine?.viscosity = viscosity
    self.bigEngine = SimpleCircleLiquidEngine(radiusThresh: radius, angleThresh: 0.55)
    bigEngine?.viscosity = viscosity
    self.engine?.color = actionButton.color
    self.bigEngine?.color = actionButton.color

    baseLiquid = LiquittableCircle(center: self.center.minus(self.frame.origin), radius: radius, color: actionButton.color)
    baseLiquid?.clipsToBounds = false
    baseLiquid?.layer.masksToBounds = false

    clipsToBounds = false
    layer.masksToBounds = false
    addSubview(baseLiquid!)
}

func open(cells: [LiquidFloatingCell]) {
    stop()
    displayLink = CADisplayLink(target: self, selector: #selector(CircleLiquidBaseView.didDisplayRefresh(_:)))
    displayLink?.addToRunLoop(NSRunLoop.currentRunLoop(), forMode: NSRunLoopCommonModes)
    opening = true
    for cell in cells {
        cell.layer.removeAllAnimations()
        cell.layer.eraseShadow()
        openingCells.append(cell)
    }
}

func close(cells: [LiquidFloatingCell]) {
    stop()
    opening = false
    displayLink = CADisplayLink(target: self, selector: #selector(CircleLiquidBaseView.didDisplayRefresh(_:)))
    displayLink?.addToRunLoop(NSRunLoop.currentRunLoop(), forMode: NSRunLoopCommonModes)
    for cell in cells {
        cell.layer.removeAllAnimations()
        cell.layer.eraseShadow()
        openingCells.append(cell)
        cell.userInteractionEnabled = false
    }
}

func didFinishUpdate() {
    if opening {
        for cell in openingCells {
            cell.userInteractionEnabled = true
        }
    } else {
        for cell in openingCells {
            cell.removeFromSuperview()
        }
    }
}

func update(delay: CGFloat, duration: CGFloat, f: (LiquidFloatingCell, Int, CGFloat) -> ()) {
    if openingCells.isEmpty {
        return
    }

    let maxDuration = duration + CGFloat(openingCells.count) * CGFloat(delay)
    let t = keyDuration
    let allRatio = easeInEaseOut(t / maxDuration)

    if allRatio >= 1.0 {
        didFinishUpdate()
        stop()
        return
    }

    engine?.clear()
    bigEngine?.clear()
    for i in 0..<openingCells.count {
        let liquidCell = openingCells[i]
        let cellDelay = CGFloat(delay) * CGFloat(i)
        let ratio = easeInEaseOut((t - cellDelay) / duration)
        f(liquidCell, i, ratio)
    }

    if let firstCell = openingCells.first {
        bigEngine?.push(baseLiquid!, other: firstCell)
    }
    for i in 1..<openingCells.count {
        let prev = openingCells[i - 1]
        let cell = openingCells[i]
        engine?.push(prev, other: cell)
    }
    engine?.draw(baseLiquid!)
    bigEngine?.draw(baseLiquid!)
}

func updateOpen() {
    update(0.1, duration: openDuration) { cell, i, ratio in
        let posRatio = ratio > CGFloat(i) / CGFloat(self.openingCells.count) ? ratio : 0
        let distance = (cell.frame.height * 0.5 + CGFloat(i + 1) * cell.frame.height * 1.5) * posRatio
        cell.center = self.center.plus(self.differencePoint(distance))
        cell.update(ratio, open: true)
    }
}

func updateClose() {
    update(0, duration: closeDuration) { cell, i, ratio in
        let distance = (cell.frame.height * 0.5 + CGFloat(i + 1) * cell.frame.height * 1.5) * (1 - ratio)
        cell.center = self.center.plus(self.differencePoint(distance))
        cell.update(ratio, open: false)
    }
}

func differencePoint(distance: CGFloat) -> CGPoint {
    switch animateStyle {
    case .Up:
        return CGPoint(x: 0, y: -distance)
    case .Right:
        return CGPoint(x: distance, y: 0)
    case .Left:
        return CGPoint(x: -distance, y: 0)
    case .Down:
        return CGPoint(x: 0, y: distance)
    }
}

func stop() {
    for cell in openingCells {
        if enableShadow {
            cell.layer.appendShadow()
        }
    }
    openingCells = []
    keyDuration = 0
    displayLink?.invalidate()
}

func easeInEaseOut(t: CGFloat) -> CGFloat {
    if t >= 1.0 {
        return 1.0
    }
    if t < 0 {
        return 0
    }
    return -1 * t * (t - 2)
}

func didDisplayRefresh(displayLink: CADisplayLink) {
    if opening {
        keyDuration += CGFloat(displayLink.duration)
        updateOpen()
    } else {
        keyDuration += CGFloat(displayLink.duration)
        updateClose()
    }
}

}

public class LiquidFloatingCell : LiquittableCircle {

let internalRatio: CGFloat = 0.75

public var responsible = true
public var imageView = UIImageView()
weak var actionButton: LiquidFloatingActionButton?

// for implement responsible color
private var originalColor: UIColor

public override var frame: CGRect {
    didSet {
        resizeSubviews()
    }
}

init(center: CGPoint, radius: CGFloat, color: UIColor, icon: UIImage) {
    self.originalColor = color
    super.init(center: center, radius: radius, color: color)
    setup(icon)
}

init(center: CGPoint, radius: CGFloat, color: UIColor, view: UIView) {
    self.originalColor = color
    super.init(center: center, radius: radius, color: color)
    setupView(view)
}

public init(icon: UIImage) {
    self.originalColor = UIColor.clearColor()
    super.init()
    setup(icon)
}

required public init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

func setup(image: UIImage, tintColor: UIColor = UIColor.whiteColor()) {
    imageView.image = image.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
    imageView.tintColor = tintColor
    setupView(imageView)
}

public func setupView(view: UIView) {
    userInteractionEnabled = false
    addSubview(view)
    resizeSubviews()
}

private func resizeSubviews() {
    let size = CGSize(width: frame.width * 0.5, height: frame.height * 0.5)
    imageView.frame = CGRect(x: frame.width - frame.width * internalRatio, y: frame.height - frame.height * internalRatio, width: size.width, height: size.height)
}

func update(key: CGFloat, open: Bool) {
    for subview in self.subviews {
        let ratio = max(2 * (key * key - 0.5), 0)
        subview.alpha = open ? ratio : -ratio
    }
}

public override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    if responsible {
        originalColor = color
        color = originalColor.white(0.5)
        setNeedsDisplay()
    }
}

public override func touchesCancelled(touches: Set<UITouch>?, withEvent event: UIEvent?) {
    if responsible {
        color = originalColor
        setNeedsDisplay()
    }
}

override public func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
    color = originalColor
    actionButton?.didTappedCell(self)
}

}

Thank you for making this. I am using this button kinda side menu. So, i would like to change initial "plus" icon to something more like "list" type icon or something custom i want. I attempted to do that but failed. At least if you can tell where it is initialised, i would try to change.

write github "yoavlt/LiquidFloatingActionButton" in Cartfile run command carthage update with error "Dependency "LiquidFloatingActionButton" has no shared framework schemes"

Please see the image for bug,

I added a UIView in storyboard and set its class to LiquidFloatingActionButton. It is showing floating button but with an extra large circle besides it.

After pod installation of LiquidFloatingButtonAction, I am getting "Method does not override any method from its superclass" error in my project multiple times. Can you please whats wrong with my project?

6 errors , 8 warnings on 0.1.2 which I thought was the swift 2.0 branch

for example the 3 overrides below are failing with the following message: /Users/mark/xcode/X2/Pods/LiquidFloatingActionButton/Pod/Classes/LiquidFloatingActionButton.swift:542:26: Method does not override any method from its superclass

////////////////////////// // MARK: Events public override func touchesBegan(touches: Set, withEvent event: UIEvent) { self.touching = true setNeedsDisplay() }

public override func touchesEnded(touches: Set<NSObject>, withEvent event: UIEvent) {
    self.touching = false
    setNeedsDisplay()
    didTapped()
}

public override func touchesCancelled(touches: Set<NSObject>!, withEvent event: UIEvent!) {
    self.touching = false
    setNeedsDisplay()
}

Hello, I don't really know if people are still checking this, but I have an issue with the voice over accessibility : the thing is voice over doesn't go through the cells when the button is open it just goes to the next element as if the button is closed but i want to change this, any ideas on this please it's very urgent

I have installed on pod.

pod 'LiquidFloatingActionButton'

so installed 1.2.0, but code is not compatible swift 5. pods lib have so many issue. so I have updated manually...

How can I get latest version from pod install. Thanks in advance.

Hello,

I am developing an app in that I have to use two types of floating button in which one will normal that shown in the demo and one is only plus icon button so how to use didtapped of LiquidFloatingActionButton. I have seen #20 but I don't get anything. Also, add that in demo example.