I'm trying to make a cool launch screen but it's a little bit hard. I would like to make my image appear the way this appears:
what I would like
But for the moment the only animation I succeeded to do is this:
what I've made
The image I use is a PNG with transparent border and the yellow drawing.
The code I use to have the animation I have
( "yellowSide" is actually the name of the outlet from the imageView that hold my image with the yellow drawing):
func animation() {
yellowSide.frame = CGRect(x: yellowSide.frame.origin.x, y: yellowSide.frame.origin.y, width: 0, height: 47)
yellowSide.alpha = 0
UIView.animate(withDuration: 0.5, delay: 2.0, options: .curveEaseIn, animations: {
var yellowSideFrame = self.yellowSide.frame
self.yellowSide.frame = CGRect(x: yellowSideFrame.origin.x, y: yellowSideFrame.origin.y, width: 243, height: 47)
self.yellowSide.alpha = 1
}, completion: nil)
}
As you guess the width / value I enter are the value that I need to have so the image looks the way I want when it's fully appeared.
You are changing the frame but you are not clipping out of frame image . you need to do like below .
// in ViewDidLoad method
yellowSide.clipsToBounds=true
func animation() {
yellowSide.frame = CGRect(x: yellowSide.frame.origin.x, y: yellowSide.frame.origin.y, width: 0, height: 47)
yellowSide.alpha = 0
UIView.animate(withDuration: 0.5, delay: 2.0, options: .curveEaseIn, animations: {
var yellowSideFrame = self.yellowSide.frame
self.yellowSide.frame = CGRect(x: yellowSideFrame.origin.x, y: yellowSideFrame.origin.y, width: 243, height: 47)
self.yellowSide.alpha = 1
}, completion: nil)
}
Related
I have the following code in Swift. The problem is when it is executed, it performs the animation, but the window stays in its original position as shown in the gif I attached.
UIView.animateKeyframes(withDuration: 0.5, delay: 0, options: .calculationModePaced, animations: {
self.view.viewWithTag(123)?.frame = CGRect(x: screenWidth5/2, y: screenHeight, width: screenWidth5 * 4, height: screenHeight5 * 3 )
}, completion: .none)
self.view.viewWithTag(123)?.removeFromSuperview()
Thank you for your time and answers.
You need to put removeFromSuperview in your completion handler.
UIView.animateKeyframes(withDuration: 0.5, delay: 0, options: .calculationModePaced, animations: {
self.view.viewWithTag(123)?.frame = CGRect(x: screenWidth5/2, y: screenHeight, width: screenWidth5 * 4, height: screenHeight5 * 3 )
}) { _ in
self.view.viewWithTag(123)?.removeFromSuperview()
}
Im made and DropDown Menu to select Action like the GIF below.
Therefore I made a Subview and animated it in.
When animating the Subview out, it looks really weird.
In particular the problem is that it just looks like a blank small bar and not like the Menu.
Does anyone know where the problem might be?
The ViewController I'm making the Subview of is a simple ViewController with a TableView inside and 1 prototype cell.
Code:
let blackView = UIView()
var tvx: OptionsVC = OptionsVC()
var h: CGFloat!
.
func optionsClicked() {
self.h = CGFloat(70 + (52 * (OptionsVC().arrayFunctionCellNames.count)))
navigationController?.hidesBarsOnTap = false
tvx = self.storyboard?.instantiateViewController(withIdentifier: "options") as! OptionsVC
if let window = UIApplication.shared.keyWindow {
blackView.backgroundColor = UIColor(white: 0, alpha: 0.5)
blackView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleDismiss)))
view.addSubview(blackView)
view.addSubview(tvx.view)
let y = (self.navigationController?.navigationBar.frame.size.height)! + UIApplication.shared.statusBarFrame.height
tvx.view.frame = CGRect(x: 0, y: (y - self.h), width: view.frame.width, height: h)
blackView.frame = CGRect(x: 0, y: y, width: view.frame.width, height: view.frame.height)
blackView.alpha = 0
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseOut, animations: {
self.blackView.alpha = 1
self.tvx.view.frame = CGRect(x: 0, y: y, width: self.view.frame.width, height: self.h)
self.blackView.frame = CGRect(x: 0, y: (y + self.h), width: self.view.frame.width, height: self.view.frame.height)
}, completion: nil)
}
}
.
func handleDismiss() {
UIView.animate(withDuration: 5.5, animations: {
let y = (self.navigationController?.navigationBar.frame.size.height)! + UIApplication.shared.statusBarFrame.height
self.blackView.alpha = 0
if let window = UIApplication.shared.keyWindow {
self.blackView.frame = CGRect(x: 0, y: y, width: self.view.frame.width, height: self.view.frame.height)
self.tvx.view.frame = CGRect(x: 0, y: (y - self.h), width: self.view.frame.width, height: self.h)
}
}, completion: {(finished:Bool) in
self.blackView.removeFromSuperview()
self.tvx.view.removeFromSuperview()
self.navigationController?.hidesBarsOnTap = true
})
}
GIF of BUG:
I made it so slow so you can better see it
Edit: My Solution
The problem was the constraints I set on my subview controller. Normally you set them to all sides, in my case, with was really weird I had to set them only to the bottom and sides. If I set some to the top, it would always do this bug.
You haven't really provided enough information for us to understand what's going on. What are tvx, blackView and self? What is the self.h variable? (From the animation it looks like you're changing the height of your "menu" view to be much shorter before you begin the animation code.)
Do you have a view controller contained inside another one using an embed segue?
If so, you should probably animate the constraints on the container view, not the child view controller's view.
As Glenn and D. Greg say in their comments, you should really be adding constraints to your views, hooking up outlets to those constraints, and animating changes to the constraint's constants rather than manipulating your view's frames directly. Animating changes to your view's frames isn't reliable when you're using AutoLayout, since AutoLayout can change your view's size and position out from under your animation code. That code looks like this, (in broad terms, no specific to your code)
myViewAConstraint.constant = someNewValue
myViewBConstraint.constant = someOtherValue
UIView.animate(withDuration: 5.5,
animations: {
someView.alpha = 0 //If you want the view to fade as it animates
self.view.layoutIfNeeded()
},
completion: { (finished:Bool) in
}
)
I'm trying to create a Star Wars style scrolling text for a viewController.
I have the following code:
override func viewDidAppear(_ animated: Bool) {
UIView.animate(withDuration: 60.0, animations: {
let width = self.scrollingTextLabel.frame.width
let height = self.scrollingTextLabel.frame.height
self.scrollingTextLabel.frame = CGRect(x: 5, y: (180 - height), width: width, height: height)
}, completion:{ _ in
self.buttonTextLabel.text = "Play"
})
}
It works perfectly except for 1 thing, it speeds up, then slows down. This means, it's hard to read at the mid point. Is there a way to make the speed constant?
Pass in .curveLinear in the animation options to make the animation have a constant velocity:
UIView.animate(withDuration: 60.0, delay: 0.0, options: .curveLinear, animations: {
let width = self.scrollingTextLabel.frame.width
let height = self.scrollingTextLabel.frame.height
self.scrollingTextLabel.frame = CGRect(x: 5, y: (180 - height), width: width, height: height)
}, completion:{ _ in
self.buttonTextLabel.text = "Play"
})
My issue is that when I press the button that runs the dealToPlayer function(), everything acts as if a card has been dealt, updates total value of cards dealt, but it does not show any animation of the card being dealt or placed. Why might this be? I am not using auto layout for this scene at all.
func dealToPlayer() {
let index = Int(arc4random_uniform(UInt32(deckCards.count)))
let drawnCard = deckCards.remove(at: index)
randomCards.append(drawnCard)
randomCard = randomCards[3 + cardSelect]
image = UIImageView(frame: CGRect(x: self.deckLocation.x, y: self.deckLocation.y, width: self.width, height: self.height))
image.image = mapping[randomCard]
cardsOut = cardsOut + 1
print("cards out is currently: \(cardsOut)")
cardSelect = cardSelect + 1
UIView.animate(withDuration: 0.5, delay: 1.5, options: [], animations: {
self.image.frame = CGRect(x: self.cardTwoLocation.x - (self.cardsOut * self.thirdWidth), y: self.cardTwoLocation.y, width: self.width, height: self.height)
}, completion: nil)
checkPlayerValue()
}
First, make sure your image view is added to your view controller.
Second, make sure your animation is called by putting a break point.
Third, print out the location and make sure the new x and y are valid, and they are different than the previous x and y.
Here is a sample duplicate of your code an it works fine
image = UIImageView(frame: CGRect(x: 100, y: 100, width: 100, height: 100))
image.backgroundColor = .red
self.view.addSubview(image)
UIView.animate(withDuration: 0.5, delay: 1.5, options: [], animations: {
self.image.frame = CGRect(x: 200, y: 200, width: 100, height: 100)
}, completion: nil)
Currently there is a view I'm trying to translate(move), rotate and scale a view at the same time. For so strange reason it's only scaling it when I put scale at the bottom. But when I change the order and put the scaling first it rotates and translates the view properly but the scale of the view changes briefly to its correct scale before changing back to its original size. I need it to stay in it's scaled form. Here is the code:
class ViewController: UIViewController {
let newView = UIView(frame: CGRect(x: 10, y: 10, width: 100, height: 100))
override func viewDidLoad() {
super.viewDidLoad()
self.view.addSubview(newView)
UIView.animate(withDuration: 1.0, animations: {
self.newView.transform = CGAffineTransform(translationX: 50, y: 70)//translation
self.newView.transform = CGAffineTransform(rotationAngle: -CGFloat.pi / 2)//rotation
self.newView.transform = CGAffineTransform(scaleX: 1, y: 0.5)//scale
})
}
}
Try combine the transforms first, then apply them at a time:
let translate = CGAffineTransform(translationX: 50, y: 70)
UIView.animate(withDuration: 1.0, animations: {
self.view.transform = translate.rotated(by: -CGFloat.pi / 2).scaledBy(x: 1, y: 0.5)
})