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Material
Commit 8f5bd914 by Daniel Dahan
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development: reworked Material Motion with nested view controllers

parent 92f3daab
Showing with 16 additions and 343 deletions
Sources/Info.plist
......@@ -15,7 +15,7 @@
<key>CFBundlePackageType</key>
<string>FMWK</string>
<key>CFBundleShortVersionString</key>
<string>2.6.2</string>
<string>2.6.3</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
......
Sources/iOS/Material+Motion.swift
......@@ -173,7 +173,7 @@ extension UIViewController {
- Returns: An optional UIViewControllerAnimatedTransitioning.
*/
open func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
return isMotionEnabled ? PresentedMotion() : nil
return isMotionEnabled ? PresentedMotion(isPresenting: true, isContainer: false) : nil
}
/**
......@@ -182,7 +182,7 @@ extension UIViewController {
- Returns: An optional UIViewControllerAnimatedTransitioning.
*/
open func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
return isMotionEnabled ? DismissedMotion() : nil
return isMotionEnabled ? DismissedMotion(isPresenting: true, isContainer: false) : nil
}
/**
......@@ -695,6 +695,17 @@ open class Motion: MotionAnimator {
s.prepareTransitionAnimation()
}
}
/// Prepares the toView.
fileprivate func prepareToView() {
toView.isHidden = isPresenting
containerView.insertSubview(toView, belowSubview: transitionView)
toView.frame = fromView.frame
toView.updateConstraints()
toView.setNeedsLayout()
toView.layoutIfNeeded()
}
}
extension Motion {
......@@ -736,17 +747,6 @@ extension Motion {
transitionView.addSubview(transitionBackgroundView)
}
/// Prepares the toView.
fileprivate func prepareToView() {
toView.isHidden = isPresenting
containerView.insertSubview(toView, belowSubview: transitionView)
toView.frame = fromView.frame
toView.updateConstraints()
toView.setNeedsLayout()
toView.layoutIfNeeded()
}
/// Prepares the transition animation.
fileprivate func prepareTransitionAnimation() {
addTransitionAnimations()
......@@ -824,341 +824,14 @@ extension Motion {
open class PresentedMotion: Motion {}
open class DismissedMotion: NSObject {
/**
An Array of UIView pairs with common motionIdentifiers in
the from and to view controllers.
*/
open fileprivate(set) var transitionPairs = [(UIView, UIView)]()
/// A reference to the transition snapshot.
open var transitionSnapshot: UIView!
/// A reference to the transition background view.
open let transitionBackgroundView = UIView()
/// A reference to the view controller that is being transitioned to.
open var toViewController: UIViewController {
return transitionContext.viewController(forKey: .to)!
}
/// A reference to the view controller that is being transitioned from.
open var fromViewController: UIViewController {
return transitionContext.viewController(forKey: .from)!
}
/// The transition context for the current transition.
open var transitionContext: UIViewControllerContextTransitioning!
/// The transition delay time.
open var delay: TimeInterval = 0
/// The transition duration time.
open var duration: TimeInterval = 0.35
/// The transition container view.
open var containerView: UIView!
/// The view that is used to animate the transitions between view controllers.
open var transitionView = UIView()
/// The view that is being transitioned to.
open var toView: UIView {
return toViewController.view
}
/// The subviews of the view being transitioned to.
open var toSubviews: [UIView] {
return Motion.subviews(of: toView)
}
/// The view that is being transitioned from.
open var fromView: UIView {
return fromViewController.view
}
/// The subviews of the view being transitioned from.
open var fromSubviews: [UIView] {
return Motion.subviews(of: fromView)
}
/// A time value to delay the transition animation by.
fileprivate var delayTransitionByTimeInterval: TimeInterval {
return 0
// return fromViewController.motionDelegate?.motionDelayTransitionByTimeInterval?(motion: self) ?? 0
}
}
extension DismissedMotion: UIViewControllerAnimatedTransitioning {
/**
The animation method that is used to coordinate the transition.
- Parameter using transitionContext: A UIViewControllerContextTransitioning.
*/
@objc(animateTransition:)
open func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
self.transitionContext = transitionContext
Motion.delay(delayTransitionByTimeInterval) { [weak self] in
guard let s = self else {
return
}
s.prepareContainerView()
s.prepareTransitionSnapshot()
s.prepareTransitionPairs()
s.prepareTransitionView()
s.prepareTransitionBackgroundView()
s.prepareToView()
s.prepareTransitionAnimation()
}
}
/**
Returns the transition duration time interval.
- Parameter using transitionContext: An optional UIViewControllerContextTransitioning.
- Returns: A TimeInterval that is the total animation time including delays.
*/
@objc(transitionDuration:)
open func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.35
}
}
extension DismissedMotion {
/// Prepares the containerView.
fileprivate func prepareContainerView() {
containerView = transitionContext.containerView
}
/// Prepares the transitionSnapshot.
fileprivate func prepareTransitionSnapshot() {
transitionSnapshot = fromView.transitionSnapshot(afterUpdates: true, shouldHide: false)
transitionSnapshot.frame = fromView.frame
containerView.addSubview(transitionSnapshot)
}
/// Prepares the transitionPairs.
fileprivate func prepareTransitionPairs() {
for from in fromSubviews {
for to in toSubviews {
guard to.motionIdentifier == from.motionIdentifier else {
continue
}
transitionPairs.append((from, to))
}
}
}
/// Prepares the transitionView.
fileprivate func prepareTransitionView() {
transitionView.frame = toView.bounds
transitionView.isUserInteractionEnabled = false
containerView.insertSubview(transitionView, belowSubview: transitionSnapshot)
}
/// Prepares the transitionBackgroundView.
fileprivate func prepareTransitionBackgroundView() {
transitionBackgroundView.backgroundColor = .clear
transitionBackgroundView.frame = transitionView.bounds
transitionView.addSubview(transitionBackgroundView)
}
open class DismissedMotion: Motion {
/// Prepares the toView.
fileprivate func prepareToView() {
fileprivate override func prepareToView() {
toView.isHidden = true
toView.frame = fromView.frame
toView.updateConstraints()
toView.setNeedsLayout()
toView.layoutIfNeeded()
}
/// Prepares the transition animation.
fileprivate func prepareTransitionAnimation() {
addTransitionAnimations()
addBackgroundAnimation()
cleanUpAnimation()
removeTransitionSnapshot()
}
}
extension DismissedMotion {
/// Adds the available transition animations.
fileprivate func addTransitionAnimations() {
for (from, to) in transitionPairs {
var snapshotAnimations = [CABasicAnimation]()
var snapshotChildAnimations = [CABasicAnimation]()
let sizeAnimation = Motion.size(to.bounds.size)
let cornerRadiusAnimation = Motion.corner(radius: to.layer.cornerRadius)
snapshotAnimations.append(sizeAnimation)
snapshotAnimations.append(cornerRadiusAnimation)
snapshotAnimations.append(Motion.position(to: to.motionPosition))
snapshotAnimations.append(Motion.transform(transform: to.motionTransform))
snapshotAnimations.append(Motion.background(color: to.backgroundColor ?? .clear))
if let path = to.layer.shadowPath {
let shadowPath = Motion.shadow(path: path)
shadowPath.fromValue = fromView.layer.shadowPath
snapshotAnimations.append(shadowPath)
}
let shadowOffset = Motion.shadow(offset: to.layer.shadowOffset)
shadowOffset.fromValue = fromView.layer.shadowOffset
snapshotAnimations.append(shadowOffset)
let shadowOpacity = Motion.shadow(opacity: to.layer.shadowOpacity)
shadowOpacity.fromValue = fromView.layer.shadowOpacity
snapshotAnimations.append(shadowOpacity)
let shadowRadius = Motion.shadow(radius: to.layer.shadowRadius)
shadowRadius.fromValue = fromView.layer.shadowRadius
snapshotAnimations.append(shadowRadius)
snapshotChildAnimations.append(cornerRadiusAnimation)
snapshotChildAnimations.append(sizeAnimation)
snapshotChildAnimations.append(Motion.position(x: to.bounds.width / 2, y: to.bounds.height / 2))
let d = calculateAnimationTransitionDuration(animations: to.motionAnimations)
let snapshot = from.transitionSnapshot(afterUpdates: true)
transitionView.addSubview(snapshot)
Motion.delay(calculateAnimationDelayTimeInterval(animations: to.motionAnimations)) { [weak self, weak to] in
guard let s = self else {
return
}
guard let v = to else {
return
}
let tf = s.calculateAnimationTimingFunction(animations: v.motionAnimations)
let snapshotGroup = Motion.animate(group: snapshotAnimations, duration: d)
snapshotGroup.fillMode = MotionAnimationFillModeToValue(mode: .forwards)
snapshotGroup.isRemovedOnCompletion = false
snapshotGroup.timingFunction = MotionAnimationTimingFunctionToValue(timingFunction: tf)
let snapshotChildGroup = Motion.animate(group: snapshotChildAnimations, duration: d)
snapshotChildGroup.fillMode = MotionAnimationFillModeToValue(mode: .forwards)
snapshotChildGroup.isRemovedOnCompletion = false
snapshotChildGroup.timingFunction = MotionAnimationTimingFunctionToValue(timingFunction: tf)
snapshot.animate(snapshotGroup)
snapshot.subviews.first?.animate(snapshotChildGroup)
}
}
}
/// Adds the background animation.
fileprivate func addBackgroundAnimation() {
transitionBackgroundView.motion(.backgroundColor(toView.backgroundColor ?? .clear), .duration(transitionDuration(using: transitionContext)))
}
}
extension DismissedMotion {
/**
Calculates the animation delay time based on the given Array of MotionAnimations.
- Parameter animations: An Array of MotionAnimations.
- Returns: A TimeInterval.
*/
fileprivate func calculateAnimationDelayTimeInterval(animations: [MotionAnimation]) -> TimeInterval {
var t: TimeInterval = 0
for a in animations {
switch a {
case let .delay(time):
if time > delay {
delay = time
}
t = time
default:break
}
}
return t
}
/**
Calculates the animation transition duration based on the given Array of MotionAnimations.
- Parameter animations: An Array of MotionAnimations.
- Returns: A TimeInterval.
*/
fileprivate func calculateAnimationTransitionDuration(animations: [MotionAnimation]) -> TimeInterval {
var t: TimeInterval = 0.35
for a in animations {
switch a {
case let .duration(time):
if time > duration {
duration = time
}
t = time
default:break
}
}
return t
}
/**
Calculates the animation timing function based on the given Array of MotionAnimations.
- Parameter animations: An Array of MotionAnimations.
- Returns: A MotionAnimationTimingFunction.
*/
fileprivate func calculateAnimationTimingFunction(animations: [MotionAnimation]) -> MotionAnimationTimingFunction {
var t = MotionAnimationTimingFunction.easeInEaseOut
for a in animations {
switch a {
case let .timingFunction(timingFunction):
t = timingFunction
default:break
}
}
return t
}
}
extension DismissedMotion {
/// Cleans up the animation transition.
fileprivate func cleanUpAnimation() {
Motion.delay(transitionDuration(using: transitionContext) + delayTransitionByTimeInterval) { [weak self] in
guard let s = self else {
return
}
s.showToSubviews()
s.removeTransitionView()
s.clearTransitionPairs()
s.completeTransition()
}
}
/// Removes the transitionSnapshot from its superview.
fileprivate func removeTransitionSnapshot() {
Motion.delay(delay) { [weak self] in
self?.transitionSnapshot.removeFromSuperview()
}
}
/// Shows the toView and its subviews.
fileprivate func showToSubviews() {
toSubviews.forEach {
$0.isHidden = false
}
toView.isHidden = false
}
/// Clears the transitionPairs Array.
fileprivate func clearTransitionPairs() {
transitionPairs.removeAll()
}
/// Removes the transitionView.
fileprivate func removeTransitionView() {
transitionView.removeFromSuperview()
}
/// Calls the completionTransition method.
fileprivate func completeTransition() {
// toViewController.motionDelegate?.motion?(motion: self, didTransition: fromView, toView: toView)
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
}
}
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