I have a UIPageViewController whose pages are a bunch of UITableViewController. I want to use a UITextField as the title field for each of my table view.
In my UIPageViewController's viewDidLoad, I have the following:
let titleField = UITextField(frame: CGRect(x: 0, y: 0, width: 150, height: 21))
titleField.delegate = self
titleField.placeholder = "(table name)"
navigationItem.titleView = titleField
This works and the text field shows up, but I'd like each of the page (i.e UITableViewController) to handle its own title view. So I moved the above code into my UITableViewController's viewDidLoad, but now nothing shows up.. Why?
Any input would be great. I guess I could keep track of which page I'm currently in in my UIPageViewController but I'm trying to avoid that. It's a lot of bookkeeping that I don't need.
Related
I'm having trouble at TableViewController.
I want to add floating button, but I found out that if I create tableview with TableviewController in Storyboard, then tableview is superview in that view controller, which means only way to add button is adding button in tableview as one of a cell, which is not floating button. (Maybe I'm wrong. I'm a bit confused. I can't add another view by Storyboard.)
I googled several times and I think the only solution is to add button by using UIWindow, but part of the solution codes are deprecated.
I hope I can get alternate solution for my problem.
Obviously the best solution is using UIViewController and adding UITableView and your button as subviews (as #Surjeet Singh suggested in comment). However if you face troubles doing this (maybe too complex right now), you can add UIButton as subview of your keyWindow as workaround. however keep in mind that you need to manually remove the button from keyWindow once your UITableViewController is going to disappear, or else your button will be appearing on other UIViewControllers. Here is the workaround solution:
func addFloatingButton() {
let keyWindow = UIApplication.shared.keyWindow
let button = UIButton(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
button.backgroundColor = .red
keyWindow?.addSubview(button)
}
I want to extend UITextField to draw inputed text in a custom UILabel like class that draws certain symbols in a special way. Would I have to modify the drawing code directly or is there a way to add this view "on top" of the UITextField while still being able to input text into the UITextField?
This should add a view to a text field. Now just change thisView to any custom view you want with any custom frame you want and pow! You got what you want ;)
let frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let thisView = UIView(frame: frame)
thisView.backgroundColor = UIColor.blue
textField.addSubview(thisView)
I am developing a swift app but having some problem on putting title and page control, together on the nav bar. I only manage to put either one of them on the nav bar, but not both. I am hoping for something like this(as well as the animation when swiping to another view controller) :
Below is my screen output. Page controller(embedded in Navigation controller) is working, just wanted to add titles(change base on view) and page control.
And here's how I create the title:
This is how I create the title:
#IBOutlet weak var navBar: UINavigationItem!
let title: UILabel = UILabel(frame: CGRectMake(0, 0, 150, 44))
title.numberOfLines = 2
title.textAlignment = .Center
title.text = "News\n"
navBar.titleView = title
I am making the title into 2 lines to leave room for the page control. However, when I try to create page control programmatically, it appears to be "behind" the nav bar.
This is how create page control:
let pageControl : UIPageControl = UIPageControl(frame: CGRectMake(0, 0, 150, 44))
self.pageControl.numberOfPages = 3
self.pageControl.currentPage = 0
self.view.addSubview(pageControl)
Add both your label and page control to another view, setting the constraints / frames appropriately, then add that view as the titleView for the nav bar.
How can I create A UISearchBar inside of a Toolbar in Swift? If I use the Interface Builder I get the following error:
error: Illegal Configuration: UISearchBar embedded in UIBarButtonItems (Only available in iPad documents)
Is there a Swift solution for this problem? The Toolbar will only be available on iPad.
UIToolBar is just a custom UIView, so you have three options (that I can see) for your implementation:
First, if you want to stick the search bar in the toolbar here's the code:
var searchBar = UISearchBar(frame: CGRectMake(0, 0, 100, 50))
var myView = UIView(frame: searchBar.frame)
myView.addSubview(searchBar)
var barButtonItem = [UIBarButtonItem(customView: myView)]
toolBar.setItems(barButtonItem, animated: false)
Second, if you want the search bar in the nav bar on your screen you can do the following:
let searchBar = UISearchBar(frame: CGRectMake(0, 0, 300, 50))
navigationController?.navigationBar.addSubview(searchBar)
Third, if you need the toolbar to be elsewhere, you can create your own custom UIView that looks like a toolbar (spans the width of the screen) and add the search bar to that. You can even make this new toolbar of yours a custom class so it's reusable throughout your program.
Cheers!
I want to make the following UITextField appear when I compile and run the application. I have the UITextField declared and initialised as:
var myTextField: UITextField = UITextField(frame: CGRect(x: 0, y: 0, width: 200.00, height: 40.00));
However when I run the app, this text field does not appear. What Swift code would make the textfield appear?
You have to actually add the text field to the view hierarchy, which is done slightly differently depending on the class that you're in. If for example, you're in a UIViewController subclass, you add it as a subview of the UIView attached to the view controller's view property.
var myTextField: UITextField = UITextField(frame: CGRect(x: 0, y: 0, width: 200.00, height: 40.00));
self.view.addSubview(myTextField)
Or, if you're working with a subclass of UIView, you could use:
self.addSubview(myTextField)
After you've added your text field to the view hierarchy, it's still possible that you won't be able to see it. By default, text field will have a white background color, no text, and no border around it. This can all be changed through use of the following properties.
myTextField.backgroundColor = UIColor.redColor()
myTextField.text = "some string"
myTextField.borderStyle = UITextBorderStyle.Line
You need to add this UITextField as a subview of another UIView.
Assuming you are inside a UIViewController, you could call self.view.addSubview(myTextField).