I have several UIButtons in a scrollview which I use in order to pass certain information. The information is saved in the title of each uibutton and when the button is clicked, it passes its title into the function.
All I want to do is hide the title of the button so you can not see the button. I have them overlaid over images which I use to show buttons. I have the text set to transparent but it still turns white when it is being clicked.
If you include code in your explanation, please explain where it should go.
After IOS7, If you want to just hide the title on titleLabel of a button you can do as follow. This way the title is still there it just makes it invisible. if you do NSLog("%#",button.currentTitle) you will see the title in terminal. Hope this helps.
[button setTitle:#"Button Title" forState:UIControlStateNormal];
button.titleLabel.layer.opacity = 0.0f;
I found only one correct working way:
//hide
yourButton.setTitleColor(UIColor.clearColor(), forState: .Normal)
//show (put your color)
yourButton.setTitleColor(UIColor.blackColor(), forState: .Normal)
using button.titleLabel.hidden = YES will not work (at least on on iOS 7).
I ended up using:
// remove the button since hiding it doesn't work
[button.titleLabel removeFromSuperview];
// put back when you're done
[button addSubview:button.titleLabel];
You can hide the label inside the button:
button.titleLabel.hidden=YES;
or set the button's title to #"" and save the value somewhere else when you want to retrieve it.
I create a subclass of UIButton and override layoutSubviews method. Hiding titleLabel in layoutSubviews method works.
public class LoadingButton: UIButton {
public var isTitleHidden: Bool = false {
didSet {
titleLabel?.isHidden = isTitleHidden
}
}
public override func layoutSubviews() {
super.layoutSubviews()
titleLabel?.isHidden = isTitleHidden
}
}
if wanna hide titleLabel, just set isTitleHidden = true
I could not remove the title from the titleLabel nor the whole view as I needed it for constraints.
I ended up using
isEnabled = false
titleLabel?.layer.opacity = 0
setTitleColor(.clear, for: .disabled)
to hide the title and
isEnabled = true
titleLabel?.layer.opacity = 1
setTitleColor(titleColor(for: .normal), for: .disabled)
to show it again
To hide a title temporary just setTitle to empty string
setTitle("", for: .normal)
the button title label will be hidden but the title will still in the titleLabel, you can return it back using
setTitle(titleLabel?.text, for: .normal)
If you want to temporary hide the title, while you disabling the button, use:
setTitle("Title", for: .normal)
setTitle("", for: .disabled)
Then, button.isEnabled = false, when you want to hide the title.
I got a problem with title, because used an attributed title and nothing above helped. Then i found a workaround:
button.titleEdgeInsets = .init(top: 0, left: shouldHide ? 1000 : 0, bottom: 0, right: 0)
However it has some disadvantages, but fit my needs.
I've come up with this solution, which allows you to set title label text and use it with button image without showing it and not moving button image to the left.
- (void)hideButtonLabel:(UIButton*)buttonInp {
buttonInp.titleLabel.layer.opacity = 0.0f;
uttonInp.titleLabel.font = [UIFont fontWithName:#"Helvetica-Light" size:0.0];
}
You cannot hide UIButton titleLabel using .hidden property. Instead you can do this.
To Hide:
[self.yourButton setTitle:nil forState:UIControlStateNormal];
To Show:
[self.yourButton setTitle:#"Your Text" forState:UIControlStateNormal];
In Swift-
You don't need to hide nor need to make the opacity to 0.0. Swift gave you a simpler way.
Just set the title as nil. In fact, I got the idea from the documentation.
Command click on the setTitle(_:for:) method and you will see-
open func setTitle(_ title: String?, for state: UIControl.State) // default is nil. title is assumed to be single line
So, I just set it to nil.
setTitle(nil, for: .normal)
Swift 5 to hide button label:
myButton.titleLabel?.isHidden = true
Here myButton is a #IBOutlet of the button.
Related
I have one UIButton in a UIView and I change its title. However, when I get the button title it is giving me the old title and not the changed one. However, when I call it from somewhere when the method is finished it's true
Thanks,
Wrapping your if statements in a performWithoutAnimation block will prevent any delays in updates to the titleLabel.
UIView.performWithoutAnimation {
if btnOne.titleLabel?.text == "qq" {
btnOne.setTitle("metin", forState: .Normal)
var a = btnOne.titleLabel?.text // "metin"
mergeString += sender.titleLabel!.text!
}
...
}
I have a view in my tabbar controller where I would like to show a button. I create this button programmatically based of a condition, therefore I use the following code but nothing is appearing:
override func viewDidLoad() {
super.viewDidLoad()
if !Settings.getIsConnected() {
notConnected()
}
}
func notConnected() {
let connectBtn = UIButton(frame: CGRect(x: self.view.center.x, y: self.view.center.y, width: 200, height: 45))
connectBtn.setTitle("Connect", forState: .Normal)
connectBtn.addTarget(self, action:#selector(self.pressedConnect(_:)), forControlEvents: .TouchUpInside)
self.view.addSubview(connectBtn)
print("Button created")
}
func pressedConnect(sender: UIButton!) {
}
I am clueless on what I am doing wrong. Anyone got suggestions? Cause it does print out "Button created" so it definitely runs the code inside the noConnected() method.
Add a background color to your UIButton and add a tint color to the title. This will resolve the problem
Try moving the code to viewDidAppear and see if the button is showing up.
The frame is not correctly set when in viewDidLoad. Use the method viewDidLayoutSubviews for the earliest possible time where the frame is correctly setup for a ViewController.
With this code change, you will need some additional logic for when your button should be added as a subview though.
A programmatically created button may not show up because of more reasons, e.g:
the tint color is not set
the background color is not set
the button is not added to the view hierarchy
the button is hidden
In your case, you should change the tint color or the background color of your button.
E.g.:
Swift 4.2:
private lazy var connectButton: UIButton = {
let button = UIButton(type: .custom)
button.backgroundColor = .green
button.setTitleColor(.black, for: .normal)
button.setTitle(NSLocalizedString("Connect", comment: ""), for: .normal)
button.translatesAutoresizingMaskIntoConstraints = false
return button
}()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(connectButton)
}
You can re-check the button properties in the storyboard that it is not hidden.
I have 16 buttons named like btn1, btn2 etc.. how can i loop through this and set an value to each button?
I have this code:
//set values on the button
for i in 1..<17{
var mybutton = "btn" + String(i);
println(mybutton)
mybutton.setTitle(String(number), forState: UIControlState.Normal)
}
}
but that doesn't work because the software sees it as an string...
How can i solve this issue?
You can create array of buttons:
let array = [btn1, btn2, btn3 ...]
for i in array.count
{
//do something
array[i].setTitle(String(number), forState: UIControlState.Normal)
}
But if you have a lot of buttons in Interface Builder, the better way to create them programmatically.
In addition to the answer of ChikabuZ:
If you separately added the buttons in storyboard, I suggest you to create an outlet collection instead: #IBOutlet var buttons: [UIButton]!.
CTRL drag all those buttons in this outlet and you can access the array like ChikabuZ has suggested.
I personally prefer to use a map instead:
buttons.map { $0.setTitle(String(number), forState: .Normal) }
If you added these in the interface builder and have a reference to the superview, you can assign each of them a tag from 1 to 16 access them using the method "viewWithTag":
//set values on the button
for i in 1..<17{
var sView = [REFERENCE TO YOUR SUPERVIEW HERE]
var mybutton = sView.viewWithTag(i) as! UIButton?
println(mybutton)
mybutton.setTitle(String(number), forState: UIControlState.Normal)
}
}
I'd like to change the text font and color of the Cancel button inside the UISearchBar in iOS 8. I've tried the solutions for iOS 6 and 7 already and they don't seem to work.
This was not the solution I was looking for, but it worked.
let cancelButtonAttributes: NSDictionary = [NSFontAttributeName: FONT_REGULAR_16!, NSForegroundColorAttributeName: COLOR_BLUE]
UIBarButtonItem.appearance().setTitleTextAttributes(cancelButtonAttributes, forState: UIControlState.Normal)
What you are looking for is:
//The tintColor below will change the colour of the cancel button
searchBar.tintColor = UIColor.blueColor()
But these are also useful While we are on the subject:
searchBar.placeholder = "Placeholder"
//The barTintColor changes the colour of the flashing text indicator
searchBar.barTintColor = UIColor.redColor()
//This sets the cancel button to show up
searchBar.setShowsCancelButton(true, animated: true)
//This makes the searchBar become active
searchBar.becomeFirstResponder()
I need to change the color of my button's text.
I also need to change the state to Disabled after the user presses it.
I have no idea how to do this. I've been looking things up for a while but they're all either in objective C or I can't understand it (usually help docs, they're stupid.).
In swift you change color for a specific State with the setTitleColor method.
In you case it will be :
button.setTitleColor(UIColor.grayColor, forState: UIControlState.Normal)
Swift 5 Update:
button.setTitleColor(UIColor.grayColor, for: UIControl.State.normal)
To change color of text
button.titleLabel.textColor = UIColor.grayColor()
To change state, on button press add following -
button.enabled = true
IBAction method should be like -
#IBAction func buttonTapped(sender : UIButton!) {
sender.enabled = false
}
Swift 3
button.setTitleColor(UIColor.gray, for: UIControlState.normal)
Note that;
grayColor has been renamed to gray
Normal is now normal (lowercase)
You have to set the text colour for the specific button state.
For Swift3, try below code :
#IBAction func butnClicked(sender : UIButton) {
sender.setTitleColor(.red, for: .normal)
sender.isEnabled = false
}
Set Enabled and text color from story board.