I have these two classes which are for having the custom tapbar, I would like to use them in swiftUI how can I do? I used these wrappers but once implemented the class in the ContentView does not appear to me
I would like to do everything in swiftUI so I would prefer not to use storyboards in the implementation. it's possible ?
//SwiftUI class. I want to use this view already done in SwiftUI
HStack {
SHCircleBarControllerView()
SHCircleBarView()
}
//Class Swift 4
import UIKit
import SwiftUI
struct SHCircleBarControllerView : UIViewControllerRepresentable {
typealias UIViewControllerType = SHCircleBarController
func makeCoordinator() -> SHCircleBarControllerView.Coordinator {
Coordinator(self)
}
func makeUIViewController(context: UIViewControllerRepresentableContext<SHCircleBarControllerView>) -> SHCircleBarController {
return SHCircleBarController()
}
func updateUIViewController(_ uiViewController: SHCircleBarController, context: UIViewControllerRepresentableContext<SHCircleBarControllerView>) {
}
class Coordinator : NSObject {
var parent : SHCircleBarControllerView
init(_ viewController : SHCircleBarControllerView){
self.parent = viewController
}
}
}
class SHCircleBarController: UITabBarController {
fileprivate var shouldSelectOnTabBar = true
private var circleView : UIView!
private var circleImageView: UIImageView!
open override var selectedViewController: UIViewController? {
willSet {
guard shouldSelectOnTabBar, let newValue = newValue else {
shouldSelectOnTabBar = true
return
}
guard let tabBar = tabBar as? SHCircleBar, let index = viewControllers?.firstIndex(of: newValue) else {return}
tabBar.select(itemAt: index, animated: true)
}
}
open override var selectedIndex: Int {
willSet {
guard shouldSelectOnTabBar else {
shouldSelectOnTabBar = true
return
}
guard let tabBar = tabBar as? SHCircleBar else {
return
}
tabBar.select(itemAt: selectedIndex, animated: true)
}
}
open override func viewDidLoad() {
super.viewDidLoad()
let tabBar = SHCircleBar()
self.setValue(tabBar, forKey: "tabBar")
self.circleView = UIView(frame: .zero)
circleView.layer.cornerRadius = 30
circleView.backgroundColor = .white
circleView.isUserInteractionEnabled = false
self.circleImageView = UIImageView(frame: .zero)
circleImageView.layer.cornerRadius = 30
circleImageView.isUserInteractionEnabled = false
circleImageView.contentMode = .center
circleView.addSubview(circleImageView)
self.view.addSubview(circleView)
let tabWidth = self.view.bounds.width / CGFloat(self.tabBar.items?.count ?? 4)
circleView.frame = CGRect(x: tabWidth / 2 - 30, y: self.tabBar.frame.origin.y - 40, width: 60, height: 60)
circleImageView.frame = self.circleView.bounds
}
open override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
circleImageView.image = image(with: self.tabBar.selectedItem?.image ?? self.tabBar.items?.first?.image, scaledTo: CGSize(width: 30, height: 30))
}
private var _barHeight: CGFloat = 74
open var barHeight: CGFloat {
get {
if #available(iOS 11.0, *) {
return _barHeight + view.safeAreaInsets.bottom
} else {
return _barHeight
}
}
set {
_barHeight = newValue
updateTabBarFrame()
}
}
private func updateTabBarFrame() {
var tabFrame = self.tabBar.frame
tabFrame.size.height = barHeight
tabFrame.origin.y = self.view.frame.size.height - barHeight
self.tabBar.frame = tabFrame
tabBar.setNeedsLayout()
}
open override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
updateTabBarFrame()
}
open override func viewSafeAreaInsetsDidChange() {
if #available(iOS 11.0, *) {
super.viewSafeAreaInsetsDidChange()
}
updateTabBarFrame()
}
open override func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) {
guard let idx = tabBar.items?.firstIndex(of: item) else { return }
if idx != selectedIndex, let controller = viewControllers?[idx] {
shouldSelectOnTabBar = false
selectedIndex = idx
let tabWidth = self.view.bounds.width / CGFloat(self.tabBar.items!.count)
UIView.animate(withDuration: 0.3) {
self.circleView.frame = CGRect(x: (tabWidth * CGFloat(idx) + tabWidth / 2 - 30), y: self.tabBar.frame.origin.y - 15, width: 60, height: 60)
}
UIView.animate(withDuration: 0.15, animations: {
self.circleImageView.alpha = 0
}) { (_) in
self.circleImageView.image = self.image(with: item.image, scaledTo: CGSize(width: 30, height: 30))
UIView.animate(withDuration: 0.15, animations: {
self.circleImageView.alpha = 1
})
}
delegate?.tabBarController?(self, didSelect: controller)
}
}
private func image(with image: UIImage?, scaledTo newSize: CGSize) -> UIImage? {
UIGraphicsBeginImageContextWithOptions(newSize, _: false, _: 0.0)
image?.draw(in: CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height))
let newImage: UIImage? = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
}
You can set up your custom UIViewControllers inside the SHCircleBarController through the viewControllers property.
In SHCircleBarController
open override func viewDidLoad() {
super.viewDidLoad()
...
viewControllers = [ViewController(), ViewController2()]
}
Your other UIViewControllers
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .red
}
}
class ViewController2: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .blue
}
}
This is the result
Segmented Pager Adapter is overlapping with my TableView when creating it manually
Using following library
https://github.com/maxep/MXSegmentedPager
Following is my code
let tabVC = AppStrings.appStoryBoard.instantiateViewController(withIdentifier:
"aboutReviewViewControllerID") as! AboutReviewViewController
viewControllerArray.append(tabVC)
segmentedPager = MXSegmentedPager(frame: CGRect(x: 0, y: 0, width:
self.view.frame.width, height: view.frame.height))
view.addSubview(segmentedPager)
segmentedPager.dataSource = self
segmentedPager.delegate = self
segmentedPager.backgroundColor = .clear
segmentedPager.parallaxHeader.view = topBGView
segmentedPager.parallaxHeader.mode = .fill
segmentedPager.parallaxHeader.height = topBGView.frame.height
segmentedPager.parallaxHeader.minimumHeight = 10
segmentedPager.parallaxHeader.delegate = self
segmentedPager.reloadData()
[![enter image description here][1]][1]func segmentedPager(_ segmentedPager: MXSegmentedPager, viewForPageAt index: Int) -> UIView {
return viewControllerArray[index].view
}
func segmentedPager(_ segmentedPager: MXSegmentedPager, segueIdentifierForPageAt index: Int) -> String {
return ""
}
I am embedding a UIImageView inside UIContentView to make it zoomable and panable (reference. The problem is that the image is not centered correctly. It looks like the entire image content is shifted out of top left corner:
While the printed content Offset is near zero: content offset is: (0.0, -20.0)
Here is my implementation:
import UIKit
class ZoomableImageView: UIScrollView {
private struct Constants {
static let minimumZoomScale: CGFloat = 0.5;
static let maximumZoomScale: CGFloat = 6.0;
}
// public so that delegate can access
public let imageView = UIImageView()
// gw: must be called to complete a setting
public func setImage(image: UIImage) {
imageView.image = image
imageView.bounds = CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
self.contentSize = image.size
let scaleFitZoomScale: CGFloat = min(
self.frame.width / image.size.width ,
self.frame.height / image.size.height
)
// reset scale and offset on each resetting of image
self.zoomScale = scaleFitZoomScale
}
// MARK - constructor
init() {
// gw: there is no super.init(), you have to use this constructor as hack
super.init(frame: CGRect(x: 0, y: 0, width: 0, height: 0)) // gw: relies on autolayout constraint later
minimumZoomScale = Constants.minimumZoomScale
maximumZoomScale = Constants.maximumZoomScale
addSubview(imageView)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
ViewController:
class ViewController: UIViewController, UIScrollViewDelegate {
let zoomableImageView = ZoomableImageView()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(zoomableImageView)
zoomableImageView.delegate = self
}
override func viewDidLayoutSubviews() {
zoomableImageView.frame = view.frame
let image = UIImage(imageLiteralResourceName: "kelly")
zoomableImageView.setImage(image: image)
}
func viewForZooming(in scrollView: UIScrollView) -> UIView? {
// print("scale factor is: \(scrollView.zoomScale)")
return zoomableImageView.imageView
}
func scrollViewDidZoom(_ scrollView: UIScrollView) {
print("scale factor is: \(scrollView.zoomScale)")
}
func scrollViewDidScroll(_ scrollView: UIScrollView) {
print("content offset is: \(scrollView.contentOffset)")
}
}
However, the centering of image works perfectly fine if I don't wrap the UIImageView and UIScrollView under the custom class:
class ViewController: UIViewController, UIScrollViewDelegate {
let imageView: UIImageView = {
let image = UIImage(imageLiteralResourceName: "kelly")
let imageView = UIImageView(image: image)
imageView.bounds = CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
return imageView
} ()
let scrollView: UIScrollView = {
let scrollView = UIScrollView()
return scrollView
} ()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
view.addSubview(scrollView)
scrollView.addSubview(imageView)
scrollView.delegate = self
self.scrollView.minimumZoomScale = 0.5;
self.scrollView.maximumZoomScale = 6.0;
}
override func viewDidLayoutSubviews() {
scrollView.frame = view.frame
if let size = imageView.image?.size {
scrollView.contentSize = size
}
}
func viewForZooming(in scrollView: UIScrollView) -> UIView? {
return imageView
}
}
Did I missed something in the first implementation?
In your ZoomableImageView class, you are setting bounds when it should be frame
So change:
imageView.bounds = CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
to
imageView.frame = CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
I'm trying to use an iCarousel in an SKScene. The problem is that when I drag on the carousel it doesn't change the images. I haven't found a tutorial for iCarousel in SpriteKit so a lot of this was guesswork.
This is my code:
import UIKit
import SpriteKit
class Hobbies: SKScene, iCarouselDelegate, iCarouselDataSource {
var carousel : iCarousel = iCarousel()
var imageArray : NSMutableArray = NSMutableArray()
override func didMove(to view: SKView) {
carousel.delegate = self
carousel.dataSource = self
carousel.type = .cylinder
carousel.center = CGPoint(x: self.size.width / 2, y: self.size.height / 2)
carousel.isUserInteractionEnabled = true
carousel.reloadData()
self.view?.addSubview(carousel)
}
func numberOfItems(in carousel: iCarousel) -> Int {
imageArray = ["Hobbies1.png", "Hobbies2.png", "Hobbies3.png"]
return imageArray.count
}
func carousel(_ carousel: iCarousel, viewForItemAt index: Int, reusing view: UIView?) -> UIView {
var imageview : UIImageView!
if view == nil {
imageview = UIImageView(frame: CGRect(x: 0, y: 0, width: 250, height: 250))
imageview.contentMode = .scaleAspectFit
} else {
imageview = view as! UIImageView
}
imageview.image = UIImage(named: "\(imageArray.object(at: index))")
return imageview
}
func carousel(_ carousel: iCarousel, valueFor option: iCarouselOption, withDefault value: CGFloat) -> CGFloat {
if option == iCarouselOption.spacing {
return value * 1.2
}
return value
}
}
Screenshot:
The iCarousel is appearing but won't scroll.
What am I missing?
The scrolling works when using autoscroll but not with normal scroll.
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I am trying to create a Page View controller with numbers of view. I want a simple code sample that will use UIPageViewController.
import UIKit
class DummyVC: UIViewController, UIScrollViewDelegate {
let scrollView = UIScrollView(frame: CGRect(x:0, y:0, width:320,height: 300))
var colors:[UIColor] = [UIColor.red, UIColor.blue, UIColor.green, UIColor.yellow]
var frame: CGRect = CGRect(x:0, y:0, width:0, height:0)
var pageControl : UIPageControl = UIPageControl(frame: CGRect(x:50,y: 300, width:200, height:50))
override func viewDidLoad() {
super.viewDidLoad()
configurePageControl()
scrollView.delegate = self
scrollView.isPagingEnabled = true
self.view.addSubview(scrollView)
for index in 0..<4 {
frame.origin.x = self.scrollView.frame.size.width * CGFloat(index)
frame.size = self.scrollView.frame.size
let subView = UIView(frame: frame)
subView.backgroundColor = colors[index]
self.scrollView .addSubview(subView)
}
self.scrollView.contentSize = CGSize(width:self.scrollView.frame.size.width * 4,height: self.scrollView.frame.size.height)
pageControl.addTarget(self, action: #selector(self.changePage(sender:)), for: UIControlEvents.valueChanged)
}
func configurePageControl() {
// The total number of pages that are available is based on how many available colors we have.
self.pageControl.numberOfPages = colors.count
self.pageControl.currentPage = 0
self.pageControl.tintColor = UIColor.red
self.pageControl.pageIndicatorTintColor = UIColor.black
self.pageControl.currentPageIndicatorTintColor = UIColor.green
self.view.addSubview(pageControl)
}
// MARK : TO CHANGE WHILE CLICKING ON PAGE CONTROL
func changePage(sender: AnyObject) -> () {
let x = CGFloat(pageControl.currentPage) * scrollView.frame.size.width
scrollView.setContentOffset(CGPoint(x:x, y:0), animated: true)
}
func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let pageNumber = round(scrollView.contentOffset.x / scrollView.frame.size.width)
pageControl.currentPage = Int(pageNumber)
}
}
For lazy coder this is the Swift 3 implementation based on That lazy iOS Guy 웃's answer
import UIKit
class ViewController: UIViewController,UIScrollViewDelegate {
let scrollView = UIScrollView(frame: CGRect(x: 0, y: 0, width: 320, height: 300))
var colors:[UIColor] = [UIColor.red, UIColor.blue, UIColor.green, UIColor.yellow]
var frame: CGRect = CGRect(x: 0, y: 0, width: 0, height: 0)
var pageControl : UIPageControl = UIPageControl(frame:CGRect(x: 50, y: 300, width: 200, height: 50))
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
configurePageControl()
scrollView.delegate = self
self.view.addSubview(scrollView)
for index in 0..<4 {
frame.origin.x = self.scrollView.frame.size.width * CGFloat(index)
frame.size = self.scrollView.frame.size
let subView = UIView(frame: frame)
subView.backgroundColor = colors[index]
self.scrollView .addSubview(subView)
}
self.scrollView.isPagingEnabled = true
self.scrollView.contentSize = CGSize(width: self.scrollView.frame.size.width * 4, height: self.scrollView.frame.size.height)
pageControl.addTarget(self, action: #selector(self.changePage(sender:)), for: UIControlEvents.valueChanged)
}
func configurePageControl() {
// The total number of pages that are available is based on how many available colors we have.
self.pageControl.numberOfPages = colors.count
self.pageControl.currentPage = 0
self.pageControl.tintColor = UIColor.red
self.pageControl.pageIndicatorTintColor = UIColor.black
self.pageControl.currentPageIndicatorTintColor = UIColor.green
self.view.addSubview(pageControl)
}
// MARK : TO CHANGE WHILE CLICKING ON PAGE CONTROL
func changePage(sender: AnyObject) -> () {
let x = CGFloat(pageControl.currentPage) * scrollView.frame.size.width
scrollView.setContentOffset(CGPoint(x: x,y :0), animated: true)
}
func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let pageNumber = round(scrollView.contentOffset.x / scrollView.frame.size.width)
pageControl.currentPage = Int(pageNumber)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Swift 3 - Horizontal image scroll
import UIKit
class pageenabled: UIViewController,UIScrollViewDelegate
{
let imagelist = ["img1.jpg", "photo1.jpg", "photo3.jpg", "photo4.jpg", "photo5.jpg"]
var scrollView = UIScrollView()
var pageControl : UIPageControl = UIPageControl(frame:CGRect(x: 50, y: 300, width: 200, height: 50))
var yPosition:CGFloat = 0
var scrollViewContentSize:CGFloat=0;
override func viewDidLoad() {
super.viewDidLoad()
scrollView = UIScrollView(frame: CGRect(x: 0, y: 0, width: self.view.frame.width, height: 300))
configurePageControl()
scrollView.delegate = self
self.view.addSubview(scrollView)
for i in stride(from: 0, to: imagelist.count, by: 1) {
var frame = CGRect.zero
frame.origin.x = self.scrollView.frame.size.width * CGFloat(i)
frame.origin.y = 0
frame.size = self.scrollView.frame.size
self.scrollView.isPagingEnabled = true
let myImage:UIImage = UIImage(named: imagelist[i])!
let myImageView:UIImageView = UIImageView()
myImageView.image = myImage
myImageView.contentMode = UIViewContentMode.scaleAspectFit
myImageView.frame = frame
scrollView.addSubview(myImageView)
}
self.scrollView.contentSize = CGSize(width: self.scrollView.frame.size.width * CGFloat(imagelist.count), height: self.scrollView.frame.size.height)
pageControl.addTarget(self, action: Selector(("changePage:")), for: UIControlEvents.valueChanged)
// Do any additional setup after loading the view.
}
func configurePageControl() {
// The total number of pages that are available is based on how many available colors we have.
self.pageControl.numberOfPages = imagelist.count
self.pageControl.currentPage = 0
self.pageControl.tintColor = UIColor.red
self.pageControl.pageIndicatorTintColor = UIColor.black
self.pageControl.currentPageIndicatorTintColor = UIColor.green
self.view.addSubview(pageControl)
}
// MARK : TO CHANGE WHILE CLICKING ON PAGE CONTROL
func changePage(sender: AnyObject) -> () {
let x = CGFloat(pageControl.currentPage) * scrollView.frame.size.width
scrollView.setContentOffset(CGPoint(x: x,y :0), animated: true)
}
func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let pageNumber = round(scrollView.contentOffset.x / scrollView.frame.size.width)
pageControl.currentPage = Int(pageNumber)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
In Swift 3.0
craeate iboutlets through story board for scrollview and pagecontroller.
#IBOutlet weak var imgScrollView: UIScrollView!
#IBOutlet weak var imgPageController: UIPageControl!
var sliderImagesArray = NSMutableArray()
in viewdidload method write this code
sliderImagesArray = ["https://images.unsplash.com/photo-1432679963831-2dab49187847?w=1080","https://images.unsplash.com/photo-1447746249824-4be4e1b76d66?w=1080", "https://images.unsplash.com/photo-1463595373836-6e0b0a8ee322?w=1080"]
imgScrollView.delegate = self
for i in 0..<sliderImagesArray.count {
var imageView : UIImageView
let xOrigin = self.imgScrollView.frame.size.width * CGFloat(i)
imageView = UIImageView(frame: CGRect(x: xOrigin, y: 0, width: self.imgScrollView.frame.size.width, height: self.imgScrollView.frame.size.height))
imageView.isUserInteractionEnabled = true
let urlStr = sliderImagesArray.object(at: i)
print(imgScrollView,imageView, urlStr)
imageView.sd_setImage(with: URL(string: urlStr as! String), placeholderImage: UIImage(named: "placeholder.png"))
imageView .contentMode = UIViewContentMode.scaleToFill
self.imgScrollView.addSubview(imageView)
}
self.imgScrollView.isPagingEnabled = true
self.imgScrollView.bounces = false
self.imgScrollView.showsVerticalScrollIndicator = false
self.imgScrollView.showsHorizontalScrollIndicator = false
self.imgScrollView.contentSize = CGSize(width:
self.imgScrollView.frame.size.width * CGFloat(sliderImagesArray.count), height: self.imgScrollView.frame.size.height)
imgPageController.addTarget(self, action: #selector(self.changePage(sender:)), for: UIControlEvents.valueChanged)
self.imgPageController.numberOfPages = sliderImagesArray.count
self.imgPageController.currentPage = 0
self.imgPageController.tintColor = UIColor.red
self.imgPageController.pageIndicatorTintColor = UIColor.black
self.imgPageController.currentPageIndicatorTintColor = UIColor.blue
after that implement scrollview delegate methods
func changePage(sender: AnyObject) -> () {
let x = CGFloat(imgPageController.currentPage) * imgScrollView.frame.size.width
imgScrollView.setContentOffset(CGPoint(x: x,y :0), animated: true)
}
func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let pageNumber = round(imgScrollView.contentOffset.x / imgScrollView.frame.size.width)
imgPageController.currentPage = Int(pageNumber)
}
#IBOutlet weak var scrollView: UIScrollView!
#IBOutlet weak var imageViewBottomConstraint: NSLayoutConstraint!
#IBOutlet weak var imageViewLeadingConstraint: NSLayoutConstraint!
#IBOutlet weak var imageViewTopConstraint: NSLayoutConstraint!
#IBOutlet weak var imageViewTrailingConstraint: NSLayoutConstraint!
extension ZoomedPhotoViewController: UIScrollViewDelegate {
func viewForZoomingInScrollView(scrollView: UIScrollView) -> UIView? {
return imageView
}
}
private func updateMinZoomScaleForSize(size: CGSize) {
let widthScale = size.width / imageView.bounds.width
let heightScale = size.height / imageView.bounds.height
let minScale = min(widthScale, heightScale)
scrollView.minimumZoomScale = minScale
scrollView.zoomScale = minScale
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
updateMinZoomScaleForSize(view.bounds.size)
}
private func updateConstraintsForSize(size: CGSize) {
let yOffset = max(0, (size.height - imageView.frame.height) / 2)
imageViewTopConstraint.constant = yOffset
imageViewBottomConstraint.constant = yOffset
let xOffset = max(0, (size.width - imageView.frame.width) / 2)
imageViewLeadingConstraint.constant = xOffset
imageViewTrailingConstraint.constant = xOffset
view.layoutIfNeeded()
}
func scrollViewDidZoom(scrollView: UIScrollView) {
updateConstraintsForSize(view.bounds.size)
}
import UIKit
public class PhotoCommentViewController: UIViewController {
#IBOutlet weak var imageView: UIImageView!
#IBOutlet weak var scrollView: UIScrollView!
#IBOutlet weak var nameTextField: UITextField!
public var photoName: String!
override public func viewDidLoad() {
super.viewDidLoad()
if let photoName = photoName {
self.imageView.image = UIImage(named: photoName)
}
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if let cell = sender as? UICollectionViewCell,
indexPath = collectionView?.indexPathForCell(cell),
photoCommentViewController = segue.destinationViewController as? PhotoCommentViewController {
photoCommentViewController.photoName = "photo\(indexPath.row + 1)"
}
}
NSNotificationCenter.defaultCenter().addObserver(
self,
selector: #selector(PhotoCommentViewController.keyboardWillShow(_:)),
name: UIKeyboardWillShowNotification,
object: nil
)
NSNotificationCenter.defaultCenter().addObserver(
self,
selector: #selector(PhotoCommentViewController.keyboardWillHide(_:)),
name: UIKeyboardWillHideNotification,
object: nil
)
deinit {
NSNotificationCenter.defaultCenter().removeObserver(self)
}
func adjustInsetForKeyboardShow(show: Bool, notification: NSNotification) {
guard let value = notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue else { return }
let keyboardFrame = value.CGRectValue()
let adjustmentHeight = (CGRectGetHeight(keyboardFrame) + 20) * (show ? 1 : -1)
scrollView.contentInset.bottom += adjustmentHeight
scrollView.scrollIndicatorInsets.bottom += adjustmentHeight
}
func keyboardWillShow(notification: NSNotification) {
adjustInsetForKeyboardShow(true, notification: notification)
}
func keyboardWillHide(notification: NSNotification) {
adjustInsetForKeyboardShow(false, notification: notification)
}
#IBAction func hideKeyboard(sender: AnyObject) {
nameTextField.endEditing(true)
}
public var photoIndex: Int!
import UIKit
class ManagePageViewController: UIPageViewController {
var photos = ["photo1", "photo2", "photo3", "photo4", "photo5"]
var currentIndex: Int!
override func viewDidLoad() {
super.viewDidLoad()
dataSource = self
// 1
if let viewController = viewPhotoCommentController(currentIndex ?? 0) {
let viewControllers = [viewController]
// 2
setViewControllers(
viewControllers,
direction: .Forward,
animated: false,
completion: nil
)
}
}
func viewPhotoCommentController(index: Int) -> PhotoCommentViewController? {
if let storyboard = storyboard,
page = storyboard.instantiateViewControllerWithIdentifier("PhotoCommentViewController")
as? PhotoCommentViewController {
page.photoName = photos[index]
page.photoIndex = index
return page
}
return nil
}
}