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Added example showing some CoreAnimation properties animating
Summary: Uses the runtime and the CoreAnimation family in a simple demo that bundles several CA animations into one transaction. Reviewers: O4 Material Motion Apple platform reviewers, O2 Material Motion, featherless Reviewed By: O4 Material Motion Apple platform reviewers, O2 Material Motion, featherless Subscribers: featherless Tags: #material_motion Differential Revision: http://codereview.cc/D1406
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174
examples/apps/Catalog/Catalog/PopupMenuViewController.swift
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| /* | ||
| Copyright 2016-present The Material Motion Authors. All Rights Reserved. | ||
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| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
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| http://www.apache.org/licenses/LICENSE-2.0 | ||
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| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
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| import UIKit | ||
| import MaterialMotionRuntime | ||
| import MaterialMotionCoreAnimationFamily | ||
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| let animDuration = 0.2 | ||
| let distFromMainButton: CGFloat = 100.0 | ||
| let angle1: Float = Float(M_PI) / 3.0 | ||
| let angle2: Float = 0 | ||
| let angle3: Float = -angle1 | ||
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| class PopupMenuViewController: UIViewController { | ||
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| var mainBtn: UIView? | ||
| var additionalBtn1: CALayer? | ||
| var additionalBtn2: CALayer? | ||
| var additionalBtn3: CALayer? | ||
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| var buttonsShowing: Bool = false | ||
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| let scheduler = Scheduler() | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
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| self.view.backgroundColor = UIColor.white() | ||
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| let width = self.view.frame.width | ||
| let height = self.view.frame.height | ||
| mainBtn = UIView(frame: CGRect(x: width / 2 - 20, y: height - 70, width: 40, height: 40)) | ||
| mainBtn?.backgroundColor = .orange() | ||
| mainBtn?.layer.cornerRadius = 20 | ||
| mainBtn?.layer.shadowColor = UIColor.black().cgColor | ||
| mainBtn?.layer.shadowOffset = CGSize(width: 0, height: 2) | ||
| mainBtn?.layer.shadowOpacity = 0.3 | ||
| mainBtn?.layer.shadowRadius = 5 | ||
| self.view.addSubview(mainBtn!) | ||
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| mainBtn?.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleTap(gestureRecognizer:)))) | ||
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| additionalBtn1 = CALayer() | ||
| additionalBtn1?.bounds = mainBtn!.frame | ||
| additionalBtn1?.position = mainBtn!.layer.position | ||
| additionalBtn1?.cornerRadius = 20 | ||
| additionalBtn1?.backgroundColor = UIColor.blue().cgColor | ||
| additionalBtn1?.opacity = 0 | ||
| self.view.layer.insertSublayer(additionalBtn1!, below: mainBtn!.layer) | ||
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| additionalBtn2 = CALayer() | ||
| additionalBtn2?.bounds = mainBtn!.frame | ||
| additionalBtn2?.position = mainBtn!.layer.position | ||
| additionalBtn2?.cornerRadius = 20 | ||
| additionalBtn2?.backgroundColor = UIColor.blue().cgColor | ||
| additionalBtn2?.opacity = 0 | ||
| self.view.layer.insertSublayer(additionalBtn2!, below: mainBtn!.layer) | ||
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| additionalBtn3 = CALayer() | ||
| additionalBtn3?.bounds = mainBtn!.frame | ||
| additionalBtn3?.position = mainBtn!.layer.position | ||
| additionalBtn3?.cornerRadius = 20 | ||
| additionalBtn3?.backgroundColor = UIColor.blue().cgColor | ||
| additionalBtn3?.opacity = 0 | ||
| self.view.layer.insertSublayer(additionalBtn3!, below: mainBtn!.layer) | ||
| } | ||
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| override func didReceiveMemoryWarning() { | ||
| super.didReceiveMemoryWarning() | ||
| // Dispose of any resources that can be recreated. | ||
| } | ||
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| func handleTap(gestureRecognizer: UIGestureRecognizer) { | ||
| let bounceTimingFunction = CAMediaTimingFunction(controlPoints: 0.5, 1.6, 1, 1) | ||
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| // Make main button smaller | ||
| let smallerBtn = CABasicAnimation(keyPath: "transform") | ||
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| let initialTransform = CATransform3DIdentity | ||
| let endTransform = CATransform3DMakeScale(0.6, 0.6, 1.0) | ||
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| smallerBtn.fromValue = NSValue(caTransform3D: buttonsShowing ? endTransform : initialTransform) | ||
| smallerBtn.toValue = NSValue(caTransform3D: buttonsShowing ? initialTransform : endTransform) | ||
| smallerBtn.duration = animDuration | ||
| smallerBtn.timingFunction = bounceTimingFunction | ||
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| // Main button shadow smaller | ||
| let smallerShadow = CABasicAnimation(keyPath: "shadowRadius") | ||
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| let initialRadius = 5 | ||
| let endRadius = 2 | ||
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| smallerShadow.fromValue = NSNumber(value: buttonsShowing ? endRadius : initialRadius) | ||
| smallerShadow.toValue = NSNumber(value: buttonsShowing ? initialRadius : endRadius) | ||
| smallerShadow.duration = animDuration | ||
| smallerShadow.timingFunction = bounceTimingFunction | ||
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| // Main button grey | ||
| let greyButton = CABasicAnimation(keyPath: "backgroundColor") | ||
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| let initialColor: AnyObject = UIColor.orange().cgColor | ||
| let endColor: AnyObject = UIColor.lightGray().cgColor | ||
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| greyButton.fromValue = buttonsShowing ? endColor : initialColor | ||
| greyButton.toValue = buttonsShowing ? initialColor : endColor | ||
| greyButton.duration = animDuration | ||
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| // Move and fade buttons | ||
| let btn1Move = generateBtnMove(btn: additionalBtn1!, distance: distFromMainButton, angle: angle1, timing: bounceTimingFunction) | ||
| let btn1Fade = generateBtnFade(btn: additionalBtn1!) | ||
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| let btn2Move = generateBtnMove(btn: additionalBtn2!, distance: distFromMainButton, angle: angle2, timing: bounceTimingFunction) | ||
| let btn2Fade = generateBtnFade(btn: additionalBtn2!) | ||
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| let btn3Move = generateBtnMove(btn: additionalBtn3!, distance: distFromMainButton, angle: angle3, timing: bounceTimingFunction) | ||
| let btn3Fade = generateBtnFade(btn: additionalBtn3!) | ||
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| let transaction = Transaction() | ||
| transaction.add(plan: smallerBtn, to: mainBtn!) | ||
| transaction.add(plan: greyButton, to: mainBtn!) | ||
| transaction.add(plan: smallerShadow, to: mainBtn!) | ||
| transaction.add(plan: btn1Move, to: additionalBtn1!) | ||
| transaction.add(plan: btn1Fade, to: additionalBtn1!) | ||
| transaction.add(plan: btn2Move, to: additionalBtn2!) | ||
| transaction.add(plan: btn2Fade, to: additionalBtn2!) | ||
| transaction.add(plan: btn3Move, to: additionalBtn3!) | ||
| transaction.add(plan: btn3Fade, to: additionalBtn3!) | ||
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| scheduler.commit(transaction) | ||
| buttonsShowing = !buttonsShowing | ||
| } | ||
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| func generateBtnMove(btn: CALayer, distance: CGFloat, angle: Float, timing: CAMediaTimingFunction) -> CABasicAnimation { | ||
| let move = CABasicAnimation(keyPath: "position") | ||
| let initialPos = mainBtn!.layer.position | ||
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| let x = initialPos.x - CGFloat(sinf(angle)) * distance | ||
| let y = initialPos.y - CGFloat(cosf(angle)) * distance | ||
| let endPos = CGPoint(x: x, y: y) | ||
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| move.fromValue = NSValue(cgPoint: buttonsShowing ? endPos : initialPos) | ||
| move.toValue = NSValue(cgPoint: buttonsShowing ? initialPos : endPos) | ||
| move.duration = animDuration | ||
| move.timingFunction = timing | ||
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| return move | ||
| } | ||
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| func generateBtnFade(btn: CALayer) -> CABasicAnimation { | ||
| let fade = CABasicAnimation(keyPath: "opacity") | ||
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| let initialOpacity = NSNumber.init(value: 0.0) | ||
| let endOpacity = NSNumber.init(value: 1.0) | ||
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| fade.fromValue = buttonsShowing ? endOpacity : initialOpacity | ||
| fade.toValue = buttonsShowing ? initialOpacity : endOpacity | ||
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| return fade | ||
| } | ||
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| } |