marmelroy / interpolate Goto Github PK

@marmelroy
Is it possible to Interpolate the Status bar color from .default to .lightContent and vis-versa?

@marmelroy
I tried this all day yesterday with the JWGCircleCounter) and CircleProgressView

Steps to Reproduce

• Instantiate a CircleProgressView or any other animatable circle view to the top right of your view.

• On tap, interpolate the object down to the center bottom of the screen.

• The object on top right will be perfectly nice and crisp.

• When it gets to the bottom, it will be blury and fuzzy

class ViewController: UIViewController {
    
    var circle: CircleProgressView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.addRecordButton()
    }
    
    func addRecordButton() {
        self.circle = CircleProgressView(x: self.view.size.width - 56, y: 29, w: 30, h: 30)
        self.circle.trackBackgroundColor = .blue
        self.circle.trackBorderWidth = 3
        self.circle.backgroundColor = .clear
        self.circle.layer.cornerRadius = self.circle.size.width / 2
        
        let tap = UITapGestureRecognizer(target: self, action: #selector(self.tap))
        self.circle.addGestureRecognizer(tap)
        
        self.view.addSubview(circle)
    }
    
    func tap() {
        self.interpolate()
    }
    
    func interpolate() {
        let newframe = CGRect(x: self.view.centerX - 37.5, y: self.view.size.height - 100, w: 75, h: 75)
        let interpolate = Interpolate(from: self.circle.frame, to: newframe) { (newframe) in
            self.circle.frame = newframe
        }
        interpolate.animate(duration: 5)
    }
}

I was hoping Interpolate could make my life a lot easier with my current task.
I have 3 screens inside a UIScrollView
So three pages.
Each pages is a specific color.
I need to animate the background color as I scroll.
It seems that interpolate only allows two vectors. To and From
I need to define a third: Mid.
So if progress was at 0 then the screen would be blue.
progress was set to 0.5 the screen would be red
progress set to 1 would be green.

Is this possible with the current version?

Hi ! :)
I have the problem that my code below is not printing any values. I'm using Xcode 8 and Swift 3.

let i = Interpolate(from: 100.0, to: 3.0, apply: { n in print(n) })
        i.animate(duration: 3.0)

@marmelroy
eg. SpringInterpolation(damping: 30.0, velocity: 0.0, mass: 1.0, stiffness: 100.0)
Hey, I find that using Spring Interpolations, my animations do not finish at their destination even though progress = 100%. Instead they are always near completion.

Why is that?

The example app has basically

    func progress(scrollProgress:CGFloat) {
        let groundProgress = scrollProgress * 1.5
        backgroundColorChange?.progress = scrollProgress
        logoAlpha?.progress = scrollProgress
        groundPosition?.progress = groundProgress
        bojackPosition?.progress = groundProgress
        bojackShadowPosition?.progress = max(groundProgress - 1, 0)
    }

So I can set the progress with procress(0) and procress(1) for the whole interpolations - but how I can animate that? Running animate on all interpolations feels wrong. Something along the lines of this would be great:

progress(0)
UIView.animate(...) {
  progress(1)
}

it'd be cool to have a swift 3 version, if you have any interest to create a branch i would like to help with that.

For some reason, the following doesn't work at all:

let i = Interpolate(from: 100.0, to: 3.0, apply: { n in print(n) })
i.animate(duration: 3.0)

but this does:

i = Interpolate(from: CGFloat(100.0), to: CGFloat(3.0), apply: { n in print(n) })
i.animate(duration: 3.0)

I'm using version 0.2.0 with Swift 2.3. I can't figure this out without getting pretty deep into the code but the init() seems to set up the instance variables identically. I'm lost, but I'd love to know what the problem is — hopefully on my end.

Is there also a way to animate constraints with Interpolate?
Would be nice to have an example for that.

I assume it's just calling layoutIfNeeded() after assigning the change inside Interpolate closure?

Any plans to include a swift 3 branch?