I have an NSTabViewController, and I want to create some custom transition.
I added some NSViewControllerTransitionOptions values and when transition method is called with my values, a custom animation should run.
Bellow is the intermediate code that I written until now. Animation run exactly how what I want, but there is a problem.
nextVC is not presented (I think). That controller should be first responder, after animation that is not respond to keyboard import.
override func transition(from fromViewController: NSViewController, to toViewController: NSViewController, options: NSViewControllerTransitionOptions = [], completionHandler completion: (() -> Void)? = nil) {
if options.contains(.analogToThemes) {
if let firstVC = fromViewController as? MBCustomizeController {
let nextVC = toViewController
let themesContainer = nextVC.view
themesContainer.setFrameOrigin(NSMakePoint(-250, -510))
var sketchContainer:NSView?
var panelsContainer:NSView?
firstVC.view.addSubview(themesContainer)
for item in firstVC.view.subviews {
if item.identifier == "sketchContainer" {
sketchContainer = item
}
if item.identifier == "customizePanlesContainer"{
panelsContainer = item
}
}
NSAnimationContext.runAnimationGroup({ context in
context.duration = animationDuration
themesContainer.animator().setFrameOrigin(NSMakePoint(0, 0))
sketchContainer!.animator().setFrameOrigin(NSMakePoint(sketchContainer!.frame.origin.x, 520))
panelsContainer!.animator().setFrameOrigin(NSMakePoint(panelsContainer!.frame.origin.x + panelsContainer!.frame.width , 0))
}, completionHandler: {
firstVC.dismiss(nil)
})
}
return
}
super.transition(from: fromViewController, to: toViewController, options: options, completionHandler: completion)
}
How can I present nextVC correctly?
Thanks.
Related
I'm trying to get a property animator to start animation when a View Controller is presented.
Right now the animation is playing however the UIViewPropertyAnimator doesn't respond to the completion handler added to it.
UIVisualEffectView sub-class.
import UIKit
final class BlurEffectView: UIVisualEffectView {
deinit {
animator?.stopAnimation(true)
}
override func draw(_ rect: CGRect) {
super.draw(rect)
effect = nil
animator = UIViewPropertyAnimator(duration: 1, curve: .linear) { [unowned self] in
self.effect = theEffect
}
animator?.pausesOnCompletion = true
}
private let theEffect: UIVisualEffect = UIBlurEffect(style: .regular)
var animator: UIViewPropertyAnimator?
}
First View controller
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func doSomething(_ sender: UIButton) {
let vc = storyboard?.instantiateViewController(identifier: "second") as! SecondVC
vc.modalPresentationStyle = .overFullScreen
present(vc, animated: false) { //vc presentation completion handler
//adding a completion handler to the UIViewPropertyAnimator
vc.blurView.animator?.addCompletion({ (pos) in
print("animation complete") //the problem is that this line isn't executed
})
vc.blurView.animator?.startAnimation()
}
}
}
Second view controller
import UIKit
class SecondVC: UIViewController {
#IBOutlet weak var blurView: BlurEffectView!
override func viewDidLoad() {
super.viewDidLoad()
}
}
Here the UIViewPropertyAnimator completion handler is added after the Second View Controller(controller with visual effect view) is presented. I have tried moving the completion handler to different places like viewDidLoad and viewDidAppear but nothing seems to work.
This whole thing seems incorrectly designed.
draw(_ rect:) is not the place to initialize your animator*, my best guess at what's happening is that vc.blurView.animator? is nil when you try to start it (have you verified that it isn't?).
Instead, your view class could look like this**:
final class BlurEffectView: UIVisualEffectView {
func fadeInEffect(_ completion: #escaping () -> Void) {
UIViewPropertyAnimator.runningPropertyAnimator(withDuration: 0.5, delay: 0, options: []) {
self.effect = UIBlurEffect(style: .regular)
} completion: { _ in
completion()
}
}
}
And you would execute your animation like this:
present(vc, animated: false) { //vc presentation completion handler
vc.blurView.fadeInEffect {
// Completion here
}
}
*draw(_ rect:) gets called every time you let the system know that you need to redraw your view, and inside you're supposed to use CoreGraphics to draw the content of your view, which is not something you're doing here.
**Since you're not using any of the more advanced features of the property animator, it doesn't seem necessary to store it in an ivar.
The problem is that you are setting pausesOnCompletion to true. This causes the completion handler to not be called.
If you actually need that to be set to true, you need to use KVO to observe the isRunning property:
// property of your VC
var ob: NSKeyValueObservation?
...
self.ob?.invalidate()
self.ob = vc.blurView.animator?.observe(\.isRunning, options: [.new], changeHandler: { (animator, change) in
if !(change.newValue!) {
print("completed")
}
})
vc.blurView.animator?.startAnimation()
And as EmilioPelaez said, you shouldn't be initialising your animator in draw. Again, if you actually have a reason for using pausesOnCompletion = true, set those in a lazy property:
lazy var animator: UIViewPropertyAnimator? = {
let anim = UIViewPropertyAnimator(duration: 1, curve: .linear) { [unowned self] in
self.effect = self.theEffect
}
anim.pausesOnCompletion = true
return anim
}()
self.effect = nil could be set in the initialiser.
Hi there I am trying to recreate apple musics miniplayer controller. There is a view that shows details about the song playing such as the song name, artist name, cover art and so forth like apple music. When a user clicks the dismiss button on the top of that controller, it minimizes it to a view just above the tabBar revealing the rootview behind the view. The only problem is that my code is causing an issue that when the view is minimized, instead of minimizing the view that shows the information about the current song being played, it minimizes all the views and leaves just a black screen. I'm not sure what is causing the issue but I will provide the code for my tabBar controller which houses the code to minimize and maximize the view and then the other controller which calls the function created in the tabBar controller to minimze and maximize the view as well as screen shots of what is happening. Thank you for taking the time to look at this. If anything is unclear please let me know.
TabBarController Code:
import Foundation
import UIKit
import Firebase
class TabBarController: UITabBarController {
var user: User? {
didSet {
guard let nav = viewControllers?[0] as? UINavigationController else { return }
guard let feed = nav.viewControllers.first as? FeedController else { return }
feed.user = user
}
}
override func viewDidLoad() {
super.viewDidLoad()
fetchUser()
setupDetailsPlayerView()
// perform(#selector(minimizePlayerDetails), with: nil, afterDelay: 1)
// perform(#selector(maximizePlayerDetails), with: nil, afterDelay: 1)
}
#objc func minimizePlayerDetails() {
maximizeTopAnchorConstraint.isActive = false
minimizeTopAnchorConstraint.isActive = true
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 1, options: .curveEaseOut, animations: {
// self.view.layoutIfNeeded()
})
}
#objc func maximizePlayerDetails() {
maximizeTopAnchorConstraint.isActive = true
maximizeTopAnchorConstraint.constant = 0
minimizeTopAnchorConstraint.isActive = false
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 1, options: .curveEaseOut, animations: {
self.view.layoutIfNeeded()
})
}
func fetchUser() {
guard let uid = Auth.auth().currentUser?.uid else { return }
UserService.shared.fetchUser(uid: uid) { user in
self.user = user
}
}
let playerDetailsView = PlayerDetailController.initFromNib()
var maximizeTopAnchorConstraint: NSLayoutConstraint!
var minimizeTopAnchorConstraint: NSLayoutConstraint!
fileprivate func setupDetailsPlayerView() {
print("setting up details view")
// view.addSubview(playerDetailsView)
view.insertSubview(playerDetailsView, belowSubview: tabBar)
playerDetailsView.translatesAutoresizingMaskIntoConstraints = false
maximizeTopAnchorConstraint = playerDetailsView.topAnchor.constraint(equalTo: view.topAnchor, constant: view.frame.height)
maximizeTopAnchorConstraint.isActive = true
minimizeTopAnchorConstraint = playerDetailsView.topAnchor.constraint(equalTo: tabBar.topAnchor, constant: -64)
// minimizeTopAnchorConstraint.isActive = true
playerDetailsView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
playerDetailsView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
playerDetailsView.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true
}
}
function being called in songcontroller:
#IBAction func dismissTapped(_ sender: Any) {
guard let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
let sceneDelegate = windowScene.delegate as? SceneDelegate
else {
return
}
let viewController = TabBarController()
sceneDelegate.window?.rootViewController = viewController
viewController.minimizePlayerDetails()
print("clicked")
self.removeFromSuperview()
}
Screenshots of what is happening:
Normal View:
Minimized View:
If you've created the TabBarController by storyboard then the empty initialization you've provided won't work. You need to instantiate the UIViewController from the storyboard. This seems to be the reason why you're getting an empty UITabBarController when setting the rootViewController. Modify your button action dismissTapped like this:
#IBAction func dismissTapped(_ sender: Any) {
//...
let viewController = UIStoryboard(name: "Main", bundle: nil)
.instantiateViewController(withIdentifier: "TabBarController") as? TabBarController
sceneDelegate.window?.rootViewController = viewController
//...
}
there is a Table View to show phone contact . i want to send phone number and email to another View Controller when Long Pressed the Cell . Long Press Work Correctly But I cant Pass Data to another View Controller .
enter image description here
VC 1 :
override func viewDidLoad() {
super.viewDidLoad()
let longPress = UILongPressGestureRecognizer(target: self, action: #selector(longpress))
tbMain.addGestureRecognizer(longPress)
}
Long Press Method for table view cell :
#objc func longpress(sender: UILongPressGestureRecognizer) {
if sender.state == UIGestureRecognizer.State.began {
let touchPoint = sender.location(in: tbMain)
if tbMain.indexPathForRow(at: touchPoint) != nil {
let cell = tbMain.dequeueReusableCell(withIdentifier: "testCell") as! NewContactCell
print("Long press Pressed:)")
self.actionVC = self.storyboard!.instantiateViewController(withIdentifier: "ActionsViewController") as? ActionsViewController
UIView.transition(with: self.view, duration: 0.25, options: [.transitionCrossDissolve], animations: {
self.view.addSubview( self.actionVC.view)
}, completion: nil)
}
}
}
VC 2 :
internal var strPhoneNUmber : String!
internal var strEmail : String!
override func viewDidLoad() {
super.viewDidLoad()
print("Phone: \(strPhoneNUmber!)")
// Do any additional setup after loading the view.
}
Get phone number and email from cell object
self.actionVC.strPhoneNUmber = cell.strPhoneNUmber // get phone number from cell object
self.actionVC. strEmail = cell.strEmail // get email from cell object
code would be like
#objc func longpress(sender: UILongPressGestureRecognizer) {
if sender.state == UIGestureRecognizer.State.began {
let touchPoint = sender.location(in: tbMain)
if tbMain.indexPathForRow(at: touchPoint) != nil {
let cell = tbMain.dequeueReusableCell(withIdentifier: "testCell") as! NewContactCell
print("Long press Pressed:)")
self.actionVC = self.storyboard!.instantiateViewController(withIdentifier: "ActionsViewController") as? ActionsViewController
**self.actionVC.strPhoneNUmber = cell.strPhoneNUmber // get phone number from cell object
self.actionVC. strEmail = cell.strEmail // get email from cell object**
UIView.transition(with: self.view, duration: 0.25, options: [.transitionCrossDissolve], animations: {
self.view.addSubview( self.actionVC.view)
}, completion: nil)
}
}
}
I don't see when your trying to pass the data.. you have quite a few way to perform that action first you can use delegation to achieve passing the data
protocol YourDelegate : class {
func passData(phoneNumber: String, email: String)
}
weak var delegate: YourDelegate?
#objc func longpress(sender: UILongPressGestureRecognizer) {
if sender.state == UIGestureRecognizer.State.began {
let touchPoint = sender.location(in: tbMain)
if tbMain.indexPathForRow(at: touchPoint) != nil {
let cell = tbMain.dequeueReusableCell(withIdentifier: "testCell") as! NewContactCell
print("Long press Pressed:)")
self.actionVC = self.storyboard!.instantiateViewController(withIdentifier: "ActionsViewController") as? ActionsViewController
self.delegate = self
**delegate?.passData(cell.strPhoneNumber, cell.strEmail)**
UIView.transition(with: self.view, duration: 0.25, options: [.transitionCrossDissolve], animations: {
self.view.addSubview( self.actionVC.view)
}, completion: nil)
}
}
}
class ???: UIViewController, YourDelegate {
var strPhoneNUmber : String!
var strEmail : String!
override func viewDidLoad() {
super.viewDidLoad()
print("Phone: \(strPhoneNUmber!)")
// Do any additional setup after loading the view.
}
func passData(phoneNumber: String, email: String) {
handle...
}
}
its not clear to me if the actionVC is the one you want to pass the data to but if so you have an instance.. just set the properties but ill still recommend sticking with the delegation pattern
actionVC.strPhoneNumber = cell.strPhoneNumber
or use a segue
self.performSegue(withIdentifier: "yourIdentifier", sender: arr[indexPath.row])
use prepare for segue to create an instance to set his properties according to the sender..
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let destvc = segue.destination as? YourClass
destvc.phoneNumber = sender.phoneNumber as? String
destvc.email = sender.email as? String
}
I would like to pass data from EditPostViewController to NewsfeedTableViewController using delegates, but func remove(mediaItem:_) is never called in the adopting class NewsfeedTableViewController. What am I doing wrong?
NewsfeedTableViewController: UITableViewController, EditPostViewControllerDelegate {
override func viewDidLoad() {
super.viewDidLoad()
//set ourselves as the delegate
let editPostVC = storyboard?.instantiateViewController(withIdentifier: "EditPostViewController") as! EditPostViewController
editPostVC.delegate = self
}
//remove the row so that we can load a new one with the updated data
func remove(mediaItem: Media) {
print("media is received heeeee")
// it does't print anything
}
}
extension NewsfeedTableViewController {
//when edit button is touched, send the corresponding Media to EditPostViewController
func editPost(cell: MediaTableViewCell) {
let editPostVC = storyboard?.instantiateViewController(withIdentifier: "EditPostViewController") as? EditPostViewController
guard let indexPath = tableView.indexPath(for: cell) else {
print("indexpath was not received")
return}
editPostVC?.currentUser = currentUser
editPostVC?.mediaReceived = cell.mediaObject
self.navigationController?.pushViewController(editPostVC!, animated: true)
}
protocol EditPostViewControllerDelegate: class {
func remove(mediaItem: Media)
}
class EditPostViewController: UITableViewController {
weak var delegate: EditPostViewControllerDelegate?
#IBAction func uploadDidTap(_ sender: Any) {
let mediaReceived = Media()
delegate?.remove(mediaItem: mediaReceived)
}
}
The objects instantiating in viewDidLoad(:) and on edit button click event are not the same objects. Make a variable
var editPostVC: EditPostViewController?
instantiate in in viewDidLoad(:) with delegate
editPostVC = storyboard?.instantiateViewController(withIdentifier: "EditPostViewController") as! EditPostViewController
editPostVC.delegate = self
and then present it on click event
navigationController?.pushViewController(editPostVC, animated: true)
or
present(editPostVC, animated: true, completion: nil)
you can pass data from presenter to presented VC before or after presenting the VC.
editPostVC.data = self.data
I suggest having a property in NewsfeedTableViewController
var editPostViewController: EditPostViewController?
and then assigning to that when you instantiate the EditPostViewController.
The idea is that it stops the class being autoreleased when NewsfeedTableViewController.viewDidLoad returns.
I want to implement the page controller and set the timer for page controller
here I used the label array of object passing the label
but here I got reaping the same values page controller also not moving and when showing the same data in label please help me to solve this issues ...
Thanks in Advance.
Here is my code :
override func viewDidLoad()
{
super.viewDidLoad()
arrPageTitle = ["In SignUp screen user can able to input the first name, last name, emailid and password.", "After SignUp email verification link has been send to his mail then add basic profile information and sport preferences.", "In Profile setting can view profile, privacy and notifications, friends, account and championships won."];
self.pageViewController = self.storyboard?.instantiateViewController(withIdentifier: "myPageviewcontroller") as! UIPageViewController
self.pageViewController.dataSource = self
let initialContentviewcontroller = self.getViewControllerAtIndex(index: 0) as PageContentViewController
let viewcontrollers = NSArray(object: initialContentviewcontroller)
self.pageViewController.setViewControllers(viewcontrollers as? [UIViewController], direction: UIPageViewControllerNavigationDirection.forward, animated: true, completion: nil)
self.pageViewController.view.frame = CGRect(x: 0, y: 50, width:self.view.frame.width,height: 350)
self.addChildViewController(self.pageViewController)
self.view.addSubview(self.pageViewController.view)
self.pageViewController.didMove(toParentViewController: self)
timer = Timer.scheduledTimer(timeInterval: 2.0, target: self, selector: (#selector(StartUpPage.advancePage)), userInfo: nil, repeats: true)
}
func advancePage ()
{
let pvcs = pageViewController.childViewControllers as! [PageContentViewController]
let itemIndex = pvcs[0].pageIndex
let firstController = getViewControllerAtIndex(index: itemIndex+1)
let startingViewControllers = [firstController]
pageViewController.setViewControllers(startingViewControllers, direction: UIPageViewControllerNavigationDirection.forward, animated: true, completion: nil)
}
func getViewControllerAtIndex(index: Int) -> PageContentViewController
{ // Create a new view controller and pass suitable data.
let pageContentViewController = self.storyboard?.instantiateViewController(withIdentifier: "PageContentViewController") as! PageContentViewController
pageContentViewController.strTitle = "\(arrPageTitle[index])"
pageContentViewController.pageIndex = index
return pageContentViewController
}
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?
{
let viewController = viewController as! PageContentViewController
var index = viewController.pageIndex as Int
if(index == 0 || index == NSNotFound) {
return nil
}
index -= 1
return self.getViewControllerAtIndex(index: index)
}
public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?
{
let viewController = viewController as! PageContentViewController
var index = viewController.pageIndex as Int
if((index == NSNotFound)) {
return nil
}
index += 1
if(index == arrPageTitle.count) {
return nil
}
return self.getViewControllerAtIndex(index: index)
}
public func presentationCount(for pageViewController: UIPageViewController) -> Int
{
return arrPageTitle.count
}
public func presentationIndex(for pageViewController: UIPageViewController) -> Int
{
return 0
}
func advancePage ()
{
UpdateCounter += 1
if UpdateCounter > 2 {
UpdateCounter = 0
}
var nextviewcontroller = self.getViewControllerAtIndex(index: UpdateCounter)
if (nextviewcontroller .isEqual(nil)) {
UpdateCounter = 0
nextviewcontroller = self.getViewControllerAtIndex(index: UpdateCounter)
}
let startingViewControllers = [nextviewcontroller]
pageViewController.setViewControllers(startingViewControllers, direction: UIPageViewControllerNavigationDirection.forward, animated: true, completion: nil)
pagecontroller.currentPage = UpdateCounter
pagecontroller.pageIndicatorTintColor = UIColor.lightGray
pagecontroller.currentPageIndicatorTintColor = UIColor.red
print(UpdateCounter)
}
try with this code hope will work
So far where i know, UI changes are made in Main thread, so if you use any loop or other method to change this in an interval it will make only the last change in the UI. You could do this with NSRunloop, but it's a little bit dangerous and unpredictable sometimes.