Change TimeInterval and update the CAbasicAnimation
I want make a timer. I've problem with CABasicAnimation and TimeInterval
they are not accurate. if I add 30 second to TimeInterval. Animation dosen't change. See on screenshoot.
My questions:
1.Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value
2.When circle complete one turn , for the second turn set new time Value example to 120 second.
https://imgur.com/Ps0sTiK
import UIKit
let timeLeftShapeLayer = CAShapeLayer()
let bgShapeLayer = CAShapeLayer()
var timeLeft: TimeInterval = 10
var endTime: Date?
var timeLabel = UILabel()
var timer = Timer()
let strokeIt = CABasicAnimation(keyPath: "strokeEnd")
class ViewController: UIViewController {
func drawBgShape() {
bgShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
bgShapeLayer.strokeColor = UIColor.white.cgColor
bgShapeLayer.fillColor = UIColor.clear.cgColor
bgShapeLayer.lineWidth = 15
view.layer.addSublayer(bgShapeLayer)
}
func drawTimeLeftShape() {
timeLeftShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
timeLeftShapeLayer.strokeColor = UIColor.green.cgColor
timeLeftShapeLayer.fillColor = UIColor.clear.cgColor
timeLeftShapeLayer.lineWidth = 15
timeLeftShapeLayer.lineCap = .round
view.layer.addSublayer(timeLeftShapeLayer)
}
func addTimeLabel() {
timeLabel = UILabel(frame: CGRect(x: view.frame.midX-50 ,y: view.frame.midY-25, width: 100, height: 50))
timeLabel.textAlignment = .center
timeLabel.text = timeLeft.time
view.addSubview(timeLabel)
}
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor(white: 0.94, alpha: 1.0)
drawBgShape()
drawTimeLeftShape()
addTimeLabel()
// here you define the fromValue, toValue and duration of your animation
strokeIt.fromValue = 0
strokeIt.toValue = 1
strokeIt.duration = timeLeft
// add the animation to your timeLeftShapeLayer
timeLeftShapeLayer.add(strokeIt, forKey: nil)
// define the future end time by adding the timeLeft to now Date()
endTime = Date().addingTimeInterval(timeLeft)
timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(updateTime), userInfo: nil, repeats: true)
}
@objc func updateTime() {
if timeLeft > 0 {
timeLeft = endTime?.timeIntervalSinceNow ?? 0
timeLabel.text = timeLeft.time
} else {
timeLabel.text = "00:00"
timer.invalidate()
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
endTime = Date().addingTimeInterval(0.5 * 60)
}
}
swift cabasicanimation
add a comment |
I want make a timer. I've problem with CABasicAnimation and TimeInterval
they are not accurate. if I add 30 second to TimeInterval. Animation dosen't change. See on screenshoot.
My questions:
1.Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value
2.When circle complete one turn , for the second turn set new time Value example to 120 second.
https://imgur.com/Ps0sTiK
import UIKit
let timeLeftShapeLayer = CAShapeLayer()
let bgShapeLayer = CAShapeLayer()
var timeLeft: TimeInterval = 10
var endTime: Date?
var timeLabel = UILabel()
var timer = Timer()
let strokeIt = CABasicAnimation(keyPath: "strokeEnd")
class ViewController: UIViewController {
func drawBgShape() {
bgShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
bgShapeLayer.strokeColor = UIColor.white.cgColor
bgShapeLayer.fillColor = UIColor.clear.cgColor
bgShapeLayer.lineWidth = 15
view.layer.addSublayer(bgShapeLayer)
}
func drawTimeLeftShape() {
timeLeftShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
timeLeftShapeLayer.strokeColor = UIColor.green.cgColor
timeLeftShapeLayer.fillColor = UIColor.clear.cgColor
timeLeftShapeLayer.lineWidth = 15
timeLeftShapeLayer.lineCap = .round
view.layer.addSublayer(timeLeftShapeLayer)
}
func addTimeLabel() {
timeLabel = UILabel(frame: CGRect(x: view.frame.midX-50 ,y: view.frame.midY-25, width: 100, height: 50))
timeLabel.textAlignment = .center
timeLabel.text = timeLeft.time
view.addSubview(timeLabel)
}
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor(white: 0.94, alpha: 1.0)
drawBgShape()
drawTimeLeftShape()
addTimeLabel()
// here you define the fromValue, toValue and duration of your animation
strokeIt.fromValue = 0
strokeIt.toValue = 1
strokeIt.duration = timeLeft
// add the animation to your timeLeftShapeLayer
timeLeftShapeLayer.add(strokeIt, forKey: nil)
// define the future end time by adding the timeLeft to now Date()
endTime = Date().addingTimeInterval(timeLeft)
timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(updateTime), userInfo: nil, repeats: true)
}
@objc func updateTime() {
if timeLeft > 0 {
timeLeft = endTime?.timeIntervalSinceNow ?? 0
timeLabel.text = timeLeft.time
} else {
timeLabel.text = "00:00"
timer.invalidate()
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
endTime = Date().addingTimeInterval(0.5 * 60)
}
}
swift cabasicanimation
“Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value” Makes no sense. Where in your code do you add 30 seconds to anything?
– matt
Jan 1 at 19:17
On touchesBegan, endTime = Date().addingTimeInterval(0.5 * 60)
– Emin Mustafa Dağcı
Jan 1 at 19:29
add a comment |
I want make a timer. I've problem with CABasicAnimation and TimeInterval
they are not accurate. if I add 30 second to TimeInterval. Animation dosen't change. See on screenshoot.
My questions:
1.Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value
2.When circle complete one turn , for the second turn set new time Value example to 120 second.
https://imgur.com/Ps0sTiK
import UIKit
let timeLeftShapeLayer = CAShapeLayer()
let bgShapeLayer = CAShapeLayer()
var timeLeft: TimeInterval = 10
var endTime: Date?
var timeLabel = UILabel()
var timer = Timer()
let strokeIt = CABasicAnimation(keyPath: "strokeEnd")
class ViewController: UIViewController {
func drawBgShape() {
bgShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
bgShapeLayer.strokeColor = UIColor.white.cgColor
bgShapeLayer.fillColor = UIColor.clear.cgColor
bgShapeLayer.lineWidth = 15
view.layer.addSublayer(bgShapeLayer)
}
func drawTimeLeftShape() {
timeLeftShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
timeLeftShapeLayer.strokeColor = UIColor.green.cgColor
timeLeftShapeLayer.fillColor = UIColor.clear.cgColor
timeLeftShapeLayer.lineWidth = 15
timeLeftShapeLayer.lineCap = .round
view.layer.addSublayer(timeLeftShapeLayer)
}
func addTimeLabel() {
timeLabel = UILabel(frame: CGRect(x: view.frame.midX-50 ,y: view.frame.midY-25, width: 100, height: 50))
timeLabel.textAlignment = .center
timeLabel.text = timeLeft.time
view.addSubview(timeLabel)
}
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor(white: 0.94, alpha: 1.0)
drawBgShape()
drawTimeLeftShape()
addTimeLabel()
// here you define the fromValue, toValue and duration of your animation
strokeIt.fromValue = 0
strokeIt.toValue = 1
strokeIt.duration = timeLeft
// add the animation to your timeLeftShapeLayer
timeLeftShapeLayer.add(strokeIt, forKey: nil)
// define the future end time by adding the timeLeft to now Date()
endTime = Date().addingTimeInterval(timeLeft)
timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(updateTime), userInfo: nil, repeats: true)
}
@objc func updateTime() {
if timeLeft > 0 {
timeLeft = endTime?.timeIntervalSinceNow ?? 0
timeLabel.text = timeLeft.time
} else {
timeLabel.text = "00:00"
timer.invalidate()
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
endTime = Date().addingTimeInterval(0.5 * 60)
}
}
swift cabasicanimation
I want make a timer. I've problem with CABasicAnimation and TimeInterval
they are not accurate. if I add 30 second to TimeInterval. Animation dosen't change. See on screenshoot.
My questions:
1.Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value
2.When circle complete one turn , for the second turn set new time Value example to 120 second.
https://imgur.com/Ps0sTiK
import UIKit
let timeLeftShapeLayer = CAShapeLayer()
let bgShapeLayer = CAShapeLayer()
var timeLeft: TimeInterval = 10
var endTime: Date?
var timeLabel = UILabel()
var timer = Timer()
let strokeIt = CABasicAnimation(keyPath: "strokeEnd")
class ViewController: UIViewController {
func drawBgShape() {
bgShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
bgShapeLayer.strokeColor = UIColor.white.cgColor
bgShapeLayer.fillColor = UIColor.clear.cgColor
bgShapeLayer.lineWidth = 15
view.layer.addSublayer(bgShapeLayer)
}
func drawTimeLeftShape() {
timeLeftShapeLayer.path = UIBezierPath(arcCenter: CGPoint(x: view.frame.midX , y: view.frame.midY), radius:
100, startAngle: -90.degreesToRadians, endAngle: 270.degreesToRadians, clockwise: true).cgPath
timeLeftShapeLayer.strokeColor = UIColor.green.cgColor
timeLeftShapeLayer.fillColor = UIColor.clear.cgColor
timeLeftShapeLayer.lineWidth = 15
timeLeftShapeLayer.lineCap = .round
view.layer.addSublayer(timeLeftShapeLayer)
}
func addTimeLabel() {
timeLabel = UILabel(frame: CGRect(x: view.frame.midX-50 ,y: view.frame.midY-25, width: 100, height: 50))
timeLabel.textAlignment = .center
timeLabel.text = timeLeft.time
view.addSubview(timeLabel)
}
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor(white: 0.94, alpha: 1.0)
drawBgShape()
drawTimeLeftShape()
addTimeLabel()
// here you define the fromValue, toValue and duration of your animation
strokeIt.fromValue = 0
strokeIt.toValue = 1
strokeIt.duration = timeLeft
// add the animation to your timeLeftShapeLayer
timeLeftShapeLayer.add(strokeIt, forKey: nil)
// define the future end time by adding the timeLeft to now Date()
endTime = Date().addingTimeInterval(timeLeft)
timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(updateTime), userInfo: nil, repeats: true)
}
@objc func updateTime() {
if timeLeft > 0 {
timeLeft = endTime?.timeIntervalSinceNow ?? 0
timeLabel.text = timeLeft.time
} else {
timeLabel.text = "00:00"
timer.invalidate()
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
endTime = Date().addingTimeInterval(0.5 * 60)
}
}
swift cabasicanimation
swift cabasicanimation
asked Jan 1 at 19:03
Emin Mustafa DağcıEmin Mustafa Dağcı
12
12
“Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value” Makes no sense. Where in your code do you add 30 seconds to anything?
– matt
Jan 1 at 19:17
On touchesBegan, endTime = Date().addingTimeInterval(0.5 * 60)
– Emin Mustafa Dağcı
Jan 1 at 19:29
add a comment |
“Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value” Makes no sense. Where in your code do you add 30 seconds to anything?
– matt
Jan 1 at 19:17
On touchesBegan, endTime = Date().addingTimeInterval(0.5 * 60)
– Emin Mustafa Dağcı
Jan 1 at 19:29
“Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value” Makes no sense. Where in your code do you add 30 seconds to anything?
– matt
Jan 1 at 19:17
“Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value” Makes no sense. Where in your code do you add 30 seconds to anything?
– matt
Jan 1 at 19:17
On touchesBegan, endTime = Date().addingTimeInterval(0.5 * 60)
– Emin Mustafa Dağcı
Jan 1 at 19:29
On touchesBegan, endTime = Date().addingTimeInterval(0.5 * 60)
– Emin Mustafa Dağcı
Jan 1 at 19:29
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53998158%2fchange-timeinterval-and-update-the-cabasicanimation%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53998158%2fchange-timeinterval-and-update-the-cabasicanimation%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown

“Adding +30 second to TimeInterval but CABasicAnimation don`t follow the added value” Makes no sense. Where in your code do you add 30 seconds to anything?
– matt
Jan 1 at 19:17
On touchesBegan, endTime = Date().addingTimeInterval(0.5 * 60)
– Emin Mustafa Dağcı
Jan 1 at 19:29