I have a set of buttons on a view controller that are added to the .xib and their properties are adjusted programmatically.
The background color is set in code as follows and then when it is tapped I change the background color using a selector method.
in configureButtons method:
[btn addTarget:self action:#selector(changeButtonBackGroundColor:) forControlEvents:UIControlEventTouchDown];
which calls the following:
-(void) changeButtonBackGroundColor:(id) sender {
[sender setBackgroundColor:[UIColor colorWithRed: 199/255. green: 95/255. blue: 45/255. alpha:1.0]];
}
Adjusting the background when touched programmatically works fine when the "Highlight Adjusts Image" property is set to YES but it shows the white glow when touched as well as changing the background color.
I don't want to see the white highlight when the button is touched so I turned off the property. This causes the background color change to stop working.
Is there a way to change the background color of a UIButton without also showing the white glowing highlight when touched?
You can try using background images with particular color. In that case you can easily make use of – setBackgroundImage:forState: function. I think this will work even when showsTouchWhenHighlighted is set to NO.
Related
I have a UIButton in a custom UIView. In the view, I have a function setDisabled:(BOOL)disabled which is called when I want to change the appearance of the UIView.
\\ Method 1
- (void) setDisabled:(BOOL)disabled
{
myUIButton.titleLabel.textColor = disabled ? [UIColor systemGrayColor] : [UIColor systemBlueColor];
}
\\ Method 2
- (void) setDisabled:(BOOL)disabled
{
[myUIButton setTitleColor: disabled ? [UIColor systemGrayColor] : [UIColor systemBlueColor] forState: UIControlStateNormal];
}
I have used this UIView for cells in UITable view. Using Method 1, the change is not immediately reflected (reflected when i scroll through UITableView) whereas using Method 2, the color change is immediately reflected. In this apple documentation, it is mentioned to not use Method 1. However I could not find the reason. Any leads would be helpful.
Do NOT use "Method 1" ...
UIKit controls - such as UIButton - have a lot of code that does work "behind the scenes."
For example, if your button has a normal color of Red, and a Highlighted color of LightGray, and then you execute:
myUIButton.titleLabel.textColor = [UIColor systemBlueColor];
The button itself does not know that you did that. It still has Red as its normal color property.
As soon as UIKit updates that button - a tap or a layout change, etc - the text color will be set back to the normal color property.
I want to change background color of UISegmentedControl when it highlighted in tvOS.
Normally Segment display like following.
When change focus for change selected segment at that time display like following.
How to change white background when UISegmentedControl focused?
I was try following things but not working.
1) create custom class of UISegmentedControl and do following code in awakeFromNib
[self setBackgroundImage:image forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
[self setBackgroundImage:image forState:UIControlStateFocused barMetrics:UIBarMetricsDefault];
2) override setHighlighted method of UISegmentedControl
3) change background color in didUpdateFocusInContext method.
From my understanding of your question, you want to change the background color same as UISegmentControl tint color. What you need to do is simply use this:
label.backgroundColor = segmentedControl.tintColor;
Hope this will help you if not try this:
You just need to give its background color to clear from storyboard. This is happening due to default background selection and default selection is as per theme. Once you set the segmentControl background color to clear you will get the required result.
Or you can do:
Try to set your UISegmentcontrol background color to clear in viewDidLoad, you will get your result. I have tried this and it worked for me.
segment.backgroundColor = Color.clear;
its easy to clear the background color of segment control:
yourSegment.backgroundColor = .clear
I'm setting the tint color of a window to an arbitrary color, then trying to over-ride this on a per-button basis, but it appears that the buttons revert to the window tint color whenever there is a segue applied on them.
Setting tint color in didFinishLaunchingWithOptions:
self.window.tintColor = [UIColor redColor];
and then my two buttons in viewDidLoad:
[self.button1 setImage:[[UIImage imageNamed:#"711-trash"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate] forState:UIControlStateNormal];
self.button1.tintColor = [UIColor purpleColor];
self.button2.tintColor = [UIColor blueColor];
where button1 is a custom type button and button2 is a system type button.
When the popover first presents, the two buttons are tinted purple and blue. But when the segue view controller is pushed, the popped, the two buttons switch to red. Is there any way to prevent this?
EDIT:
I've tried reproducing your code like this:
However everything worked as expected:
So I agree with #user3779315, possibly you are setting the buttons' tint color somewhere else. Btw, additional code of your project would help to clarify the issue :-)
I know my case may be rare but how do you disable the UIButton tint colour in this case?
I have a customised UIButton which has attributedTitle to help display the button pattern in different colour and alpha.
In my customised button .m file I have set something like this
[self setBackgroundImage:[self imageWithColor:[UIColor grayColor]] forState:UIControlStateSelected];
which will make the background colour to gray when the button is selected
However the real result looks like this:
Some how the text colour gets turned into white which I think is because of the tint effect on UIButtons.
Is that possible for me to have the background as grey while the text still remain the colour as set in the attributed title on selected state of the button?
Thanks
yourbutton = [UIButton buttonWithType:UIButtonTypeCustom];
(or)
If u placed button in storyboard....Choose button type as custom instead of system.
You can override setImage:forState: in UIButton subclass and change rendering mode to .alwaysOriginal.
override func setImage(_ image: UIImage?, for state: UIControlState) {
let newImage = image?.withRenderingMode(.alwaysOriginal)
super.setImage(newImage, for: state)
}
Simple, just head to the image in your assets, and set its rendering mode to "Original Image", check image below:
Follow this steps to get result:
First set UITabBar background color to clear
Now put this line in viewDidLoad method of the first page:
[[UITabBar appearance] setTintColor:SETYOURCOLOR];
Hope it will help you.
I would like to improve performance by making my views opaque where appropriate. I have a UIButton that is showing red in the simulator - it's only red around the text of the button, not the entire frame. In the Storyboard, I've enabled Opaque and changed the background color from clear to white, yet it still shows red in the simulator.
How do I change that to green so that it's fully opaque and not trying to work with transparency?
Note that UILabels are fully green when you change its background and opaque to YES.
I am use following code in your case:
[button.titleLabel setOpaque:YES];
[button.titleLabel setBackgroundColor:[UIColor whiteColor]];
// or which-you-want-color
Obviously, you should keep weak reference to your button.
Pretty works. Button size smaller than the screenshot size.
I believe the UIButton is made of a couple of views such as titleLabel. It may be possible to enumerate the UIButtons' subview and set them each to opaque.
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
for(UIView *subview in [button subviews]){
subview.opaque = YES;
}