I am made calendar with collectionview, for calendar i am using JTAppleCalendar here i need shadow for collectionview so i have added shadow to collectionview like below
override func viewDidLoad() {
super.viewDidLoad()
calendarView.layer.shadowColor = UIColor.black.cgColor
calendarView.layer.shadowOffset = CGSize(width: 0, height: 1)
calendarView.layer.shadowOpacity = 1
calendarView.layer.shadowRadius = 1.0
calendarView.layer.cornerRadius = 10
calendarView.clipsToBounds = false
calendarView.layer.masksToBounds = false
}
now the o/p: here if i scroll calendar for next month then i am getting un related dates(maybe next month dates) are coming right side.. how to remove that, and give perfect shadow to collectionview
if i didn't give shadow then i am not facing any problem while scrolling to next month.. only with shadow i am facing this issue
how to solve please do help.
calendarView.clipsToBounds = false is causing the views/cells outside current bounds to be visible as well.
You should add your calendarView as a subview in a container UIView instance and try applying the shadow code to that view.
Related
Try to add red dot badge for every unread data in inbox tableviewcell.
I try using cell.accessoryview to add badge
let size: CGFloat = 9
let width = max(size, 0.7 * size * 1) // perfect circle is smallest allowed
let badge = UILabel(frame: CGRect(x: 0, y: 0, width: width, height: size))
badge.layer.cornerRadius = size / 2
badge.layer.masksToBounds = true
badge.textAlignment = .center
badge.textColor = UIColor.white
badge.backgroundColor = UIColor.red
if viewModel.sortedInboxItems[indexPath.section].isRead {
cell.accessoryView = badge
}
But if using cell.accessoryview it will change the display like image below (TIME in the right corner of the cell is moving forward). How to make it not change the display?
EDIT
Try to create dot as uilabel in custom uitableview cell like image below
But the result show like this image below. The red dot shape is not good enough? Can someone help with this issue ?
The accessoryView is not part of the contentView of the cell. If you set the accessoryView it will push the contentView over to make room for itself. More information on that can be found here; this diagram is helpful:
If you don't want it to do this, put your red dot into the cell itself instead of using the accessoryView. It's unclear how you've built your cells, but it looks like you've created a custom UITableViewCell, so you should be able to do this without trouble.
Or as commented above, you could include your time label in your accessory view alongside the red dot if applicable.
Consider using a UIView with corner radius just like you did with the label. To make sure that the shape is right (sizes have initialised properly) change its corner radius in an overriden layoutSubviews.
override func layoutSubviews() {
super.layoutSubviews()
badgeInboxView.layer.cornerRadius = badgeInboxView.frame.height/2
}
I've been struggling for the past hours to add custom views to a UIStackView. The StackView is placed inside a UIScrollView, with constraints set to each margin of the ScrollView. Everything is design in a Storyboard.
Then in code I have the following for loop which should add my custom views to the stack:
for name in names {
let initialChildProfile = ChildProfileView.loadFromNibNamed(nibNamed: "ChildProfileView") as! ChildProfileView
initialChildProfile.frame = CGRect(x: 0, y: 0, width: childrenStackOutlet.frame.size.width, height: initialChildProfile.frame.size.height)
initialChildProfile.isUserInteractionEnabled = true
childrenStackOutlet.addArrangedSubview(initialChildProfile)
}
I've done this so many times before and everything went fine, but this time the custom views are overlapping each other. Only if I set the spacing to something larger than 0, I can actually see that is more than 1 view.
I tried setting the "translateAutoresizingMaskIntoConstraints" to false, I tried setting hardcoded values for the frame of the custom views, different constraints to the stack, even removed it from the scrollview. But nothing works.
PS I tried the few solutions I've seen online. Still nothing.
Thank you.
the problem is autolayout
for name in names {
let initialChildProfile = ChildProfileView.loadFromNibNamed(nibNamed: "ChildProfileView") as! ChildProfileView
initialChildProfile.translatesAutoresizingMaskIntoConstraints = false
initialChildProfile.widthAnchor.constraint(equalToConstant: childrenStackOutlet.frame.size.width).isActive = true
//initialChildProfile.heightAnchor.constraint(equalToConstant: self.view.frame.width - 50).isActive = true
initialChildProfile.isUserInteractionEnabled = true
childrenStackOutlet.addArrangedSubview(initialChildProfile)
}
I'm trying to add a custom UIView after adding a UICollectionView because I wanna show the custom bar view above the collection view. This is my code:
func loadFilters() {
let categoriesFlowLayout = UICollectionViewFlowLayout()
categoriesFlowLayout.scrollDirection = .vertical
categoriesCollection = UICollectionView(frame: CGRect(x: 10, y: getY(yAxis: searchField) + 10, width: view.frame.size.width - 20, height: (view.frame.size.height * 9 / 10) - getY(yAxis: searchField) - 10), collectionViewLayout: categoriesFlowLayout)
categoriesCollection.register(categoriesCell.self, forCellWithReuseIdentifier: "categoriesCell")
categoriesCollection.delegate = self
categoriesCollection.dataSource = self
categoriesCollection.backgroundColor = UIColor.clear
categoriesCollection.showsVerticalScrollIndicator = false
categoriesCollection.showsHorizontalScrollIndicator = false
view.addSubview(categoriesCollection)
addBar()
categoriesCollection.isUserInteractionEnabled = true
}
The addBar() function is declared in the custom superclass ViewController
if addBar() is called before view.addSubview(categoriesCollection) it looks like the image below but if it is called after then my collection view does not scroll or recognize touches. Is there anyway that will make the collection view scroll and bring the custom bar to front?
I've used sendSubviewToBack() and bringSubviewToFront() functions as well but the result is the same
When you insert a view above another view, the top view gets all touch events. So the UICollectionView does not receive any touch events anymore since another view is above it.
As I see from your post, you just want the bar at the bottom of the screen. So check the size of your custom UIView. It probably fills the entire screen and is completely above the UICollectionView. Just give the UIView some sort of background color and see, how much space it fills.
If this doesn't work, you can use a UIGestureRecognizer on the custom UIView and forward the touch events to the UICollectionView.
I have got an UIButton on a storyboard ViewController. When I load data into the form and the layout is significantly changing the button does not recognise the touch action.
I have figured out that when button is visible on the scrollview right after it if filled with data, the touch action works.
If the data too long and the button is not visible at first, just when it is scrolled into the display, the touch action does not work.
I was checking if something is above the button, but nothing. I have tried to change the zPosition of the button, not solved the problem.
What can be the issue?
I have made custom classes from the UIScrollView and the UIButton to check how the touches event triggered. It is showing the same behaviour, which is obvious. If the button is visible right at the beginning, the UIButton's touchesBegan event is triggered. If the button moves down and not visible at the beginning, it is never triggered, but the scrollview's touchesBegan is called instead.
Depending on the size of the data I load into the page sometimes the button is visible at the beginning, but the form can be still scrolled a bit. In this case the button still work, so it seems that this behaviour is not depending on if the scrollview is scrolled before or not, just on the initial visibility of the button.
Is there any layout or display refresh function which should be called to set back the behaviour to the button?
The code portion which ensures that the contentview is resized for the scroll if the filled data requires bigger space.
func fillFormWithData() {
dispDescription.text = jSonData[0]["advdescription"]
dispLongDescription.text = jSonData[0]["advlongdesc"]
priceandcurrency.text = jSonData[0]["advprice"]! + " " + jSonData[0]["advpricecur"]!
validitydate.text = jSonData[0]["advdate"]!
contentview.layoutIfNeeded()
let contentRect = CGRect(x: 0, y: 0, width: scrollview.frame.width, height: uzenetbutton.frame.origin.y+uzenetbutton.frame.height+50)
contentview.frame.size.height = contentRect.size.height
scrollview.contentSize = contentview.bounds.size
}
Ok, so another update. I have coloured the contentview background to blue and the scrollview background to white. When I load the data and resize the layout constraints, the contentview is resizing as expected, however now the scrollview is going to the bottom. After I scroll the view it is resizing to the original size which fits the screen. Now the button is only recognised when I touch the are which is blue behind. With the white background it is not recognised anymore, so it seems that the scrollview is hiding the button.
Let me get this clear the button is added in storyboard and it is a spritekit project?? If you are using zPosition?? Why don’t u connect the UIButton via the assistant editor as an IBAction then the action is always tied to the button.
You can also do it differently
Create an SKLabelNode and put it on the screen where you want to have the button and then set a name to it as myButton
override func touchesBegan(_ touches: Set<UITouch>, with event:
UIEvent?) {
if let touch = touches.first {
let location = touch.location(in: self)
let tappedNodes = nodes(at: location)
for node in tappedNodes {
if node.name == "myButton" {
// call your action here
}
}
}
}
EDIT 1:
You could also try auto resizing your scrollView.content this works also if you are adding any views via the app or programmatically
private func resizeScrollView(){
print("RESIZING THE SCROLLVIEW from \(scrollView.contentSize)")
for view in scrollView.subviews {
contentRect = contentRect.union(view.frame)
}
scrollView.contentSize = CGSize(width: contentRect.size.width, height: contentRect.size.height + 150)
print("THE CONTENT SIZE AFTER RESIZING IS: \(scrollView.contentSize)")
}
EDIT 2: I think I found the issue with your project. You need to move the MessageButton(UzenetButton) above DispDescription label in the object inspector in that way it will always be above your message textView.
At the moment the UzeneButton is at the very far back in your view hierarchy so if your textView is resizing whilst editing it covers the button that is why you cannot click on it.
See #Endre Olah,
To make situation more clear do one more thing, set clipToBound property of contentview to true.
you will notice that after loading of data your button not fully visible, it means it is shifting out of bound of its parentView (ContentView)
And that's why button is not taking your touch. However, if you carefully touch upper part of button it still do its job. Because upper part is still in bound of ContentView
Solution :
After loading of data you have to make sure that you increase height of ContentView such that button should never go out of bound of its parentView(ContentView).
FOR EXAMPLE
#IBOutlet var heightConstraintOfContentView : NSLayoutConstraint!
After loading of data
let contentRect = CGRect(x: 0, y: 0, width: scrollview.frame.width, height: uzenetbutton.frame.origin.y+uzenetbutton.frame.height+50)
heightConstraintOfContentView.constant = contentRect.size.height
contentView.layoutIfNeeded()
I use following steps when I need to use scrollview with dynamic content:
1) Firstly add a scrollView with top, bottom, trailing and leading is 0 to super view.
2) Add a view to scrollView and view's trailing, leading bottom and top space to scrollView can be set to 0 (or you can add margin optionally).
3) Now, you should add UI elements like buttons, labels with appropriate top, bottom, trailing and leading margins to each other.
4) Lastly, add equal height and equal width constraint to view with Safe Area:
and change equal height priority of view to 250:
It should solve your problem with UIScrollView.
Finally, I have found the solution in another chain, once it became clear that the scrollview's contentview is resizing on scroll event to the original size. (Not clear why this is like this, but that is the fact.)
So I had to add a height constraint to the contentview in the storyboard and create an outlet to it and adjust this constraint when the content size is changing, like this:
#IBOutlet weak var ContentViewHeight: NSLayoutConstraint!
func fillFormWithData() {
dispDescription.text = jSonData[0]["advdescription"]
dispLongDescription.text = jSonData[0]["advlongdesc"]
priceandcurrency.text = jSonData[0]["advprice"]! + " " + jSonData[0]["advpricecur"]!
validitydate.text = jSonData[0]["advdate"]!
contentview.layoutIfNeeded()
let contentRect = CGRect(x: 0, y: 0, width: scrollview.frame.width, height: uzenetbutton.frame.origin.y+uzenetbutton.frame.height+50)
contentview.bounds = contentRect
scrollview.contentSize = contentRect.size
----------- This is the key line to the success ----------
ContentViewHeight.constant = contentRect.size.height
----------------------------------------------------------
}
After this is added, it works perfectly.
I'm working on a tvOS project. This project contains a UICollectionView with a UIImageView inside of each UICollectionViewCell. First of all I'm using adjustsImageWhenAncestorFocused on the image, because it looks good when the cell is in focus and I want to have the 'parallax' effect.
When a cell is in focus there should pop up an label over the image(for the title of a product) which is not a problem to make. But I want the title to be good readable so thats why I want to put on a gradient layer on top of the image.
The problem:
When I add the gradient layer to the UIImageView, it goes on top of it but it doesn't 'stick' to it. It should go with the image when the user is doing the parallax thing, but it stays at its position and the original image does move underneath the gradient layer
Screenshot of the problem
The code
let gradientLayer = CAGradientLayer()
override func didUpdateFocus(in context: UIFocusUpdateContext, with coordinator: UIFocusAnimationCoordinator) {
gradientLayer.colors = [UIColor(red:0.00, green:1.00, blue:1.00, alpha:0.3).cgColor, UIColor(red:1.00, green:0, blue:1.00, alpha:0.3).cgColor]
gradientLayer.frame = productImageView.focusedFrameGuide.layoutFrame
gradientLayer.isHidden = true
self.productImageView.layer.addSublayer(self.gradientLayer)
if (self.isFocused){
gradientLayer.isHidden = false
}
else {
gradientLayer.isHidden = true
}
}
Additional question
Is this a bug? Because I still don't figured it out how to fix this problem. Should I give this to Apple?
Apple introduced overlayContentView in tvOS 11. You should add your label to this view and it will do the focus for you!
For more information read https://developer.apple.com/documentation/uikit/uiimageview/2882128-overlaycontentview?changes=latest_minor