So I've subclassed a UIButton and the only method I've added to it is setTitle (I am using icon fonts so I created an Icon_UIButton for those buttons represented via icons).
I have this code:
Icon_UIButton* button = [[Icon_UIButton alloc] init];
[button setTitle:#"R"]; //R is a specific icon in my icon font
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
This looks like it works, but after I set a button to selected using:
[button setSelected:YES];
whenever I tap and hold down on that button, it turns black again.
It's like a selected Icon_UIButton ignores it's titleColor for a highlighted state when it's selected at the same time.
Has anybody experienced this?
Ok, I found the correct answer to my question in this thread:
Highlighted state for UIButton doesn't come when going from selected to normal state
I hate to answer my own question, but just in case anybody else types in search terms that might match this question in google, here is the answer (shortened, but directly from the other thread):
There's another UIControlState (or rather, a mix of control states):
UIControlStateSelected | UIControlStateHighlighted
So now the code looks like this:
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected | UIControlStateHighlighted];
Related
I'm trying to programmatically create a UIButton. However by default it's turning up white (which is the default color for my navigation bar, I feel that's relevant). I want it to just be Apple's default blue color in iOS7. I've managed to change the color for it's default state, but the moment I select it the text becomes white again. I cannot figure out how to keep it blue.
Could someone please explain to me how I can programmatically create a UIButton and have it act the same as though I created it in storyboard?
Current code:
UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];
cancelButton.frame = CGRectMake(320 - 150, 0, 140, 40);
[cancelButton setTitle:#"Cancel" forState:UIControlStateNormal];
cancelButton.titleLabel.tintColor = [UIColor colorWithRed:0.0 green:122.0/255.0 blue:1.0 alpha:1.0];
cancelButton.titleLabel.textColor = [UIColor colorWithRed:0.0 green:122.0/255.0 blue:1.0 alpha:1.0];
Thank you.
Try this code :
UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];
[cancelButton setFrame:CGRectMake(320 - 150, 0, 140, 40)];
[cancelButton setBackgroundColor:[UIColor clearColor]];
[cancelButton setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[cancelButton setTitleColor:[UIColor blueColor] forState:UIControlStateHighlighted]; // This will helps you during click time title color will be blue color
[cancelButton setTitle:#"Cancel" forState:UIControlStateNormal];
[cancelButton addTarget:self action:#selector(button_Action) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:cancelButton];
Just tried with
[cancelButton setTitleColor:[UIColor colorWithRed:0.0 green:122.0/255.0 blue:1.0/255.0 alpha:1.0] forState:UIControlStateNormal];
For more information read official documentation of UIButton.
Have you tried this
[cancelButton setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
[cancelButton setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
This will solve your problem,
[cancelButton setTitleColor:YOUR COLOR forState:SPECIFIED STATE];
The state values are :
UIControlStateNormal
UIControlStateHighlighted
UIControlStateDisabled
UIControlStateSelected
Try using
- (void)setTitleColor:(UIColor *)color forState:(UIControlState)state
for specifying colors for all the required states.
Swift:
let button = UIButton (type: UIButtonType.system)
This will create a button that uses the standard tint color just like a button added to a storyboard in interface builder.
I just switched from a UILabel to UIButton, intending to use the button's titleLabel property to display the information formerly displayed in the label replaced by the button.
Problem is, the text doesn't show up. I've checked to see if the button itself (normally with a transparent background, changed to red to check) is appearing, and it is, but the text isn't there. Here's a sample of the relevant code, which is identical to the original (working) code from the label, changing only lines like:
UILabel *firstLabel;
(...)
firstLabel.textColor = [UIColor blackColor];
to:
UIButton *firstLabel;
(...)
firstLabel.titleLabel.textColor = [UIColor blackColor];
Here's a full chunk for clarity:
firstLabel.frame = CGRectMake(thisRiser.bounds.origin.x, thisRiser.frame.size.height -focusBarEndHeight - 55, barWidth, 60);
firstLabel.backgroundColor = [UIColor clearColor];
firstLabel.titleLabel.textColor = [UIColor blackColor];
firstLabel.titleLabel.text = [NSString stringWithFormat:#"%#\n%.2f%%\nTime--%#",focusItemName,focusItemPercent,actualDurationFocusItem];
[firstLabel.titleLabel setFont:[UIFont boldSystemFontOfSize:12]];
firstLabel.titleLabel.numberOfLines = 0;
firstLabel.titleLabel.textAlignment = NSTextAlignmentCenter;
[firstLabel setHidden:NO];
What am I missing? Any ideas?
Thanks!
UPDATE --
This may be related to a known bug!
Many thanks to the responders below. I implemented the first recommended fix, which resolved my initial problem, so my text now appears in the label. However, the UIControlStateHighlighted and UIControlStateSelected don't work.
For example, this code produces no discernible effect to the text when clicked:
firstLabel.backgroundColor = [UIColor clearColor];
[firstLabel setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[firstLabel setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
[firstLabel setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
After searching around SO for a while, I'm coming to the conclusion that there is a bug (at least in iOS 7) that prevents proper functioning of these methods. Unfortunately, I'm not smart enough to provide more detailed information, but plenty of recent posts point to a major problem in this area of UIControl.
I'll be ecstatic to be proven wrong, because I'd like to use this functionality.
UIButton responds to different messages, you can use the button state to change its title.
You can set the title like this;
UIButton *button = [UIButton buttonWithType: UIButtonTypeCustom];
[button setTitle:#"Title goes here" forState:UIControlStateNormal];
See Control State: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIControl_Class/Reference/Reference.html#//apple_ref/c/tdef/UIControlState
To set a title in an UIButton, you have to init the button:
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(10, 10, 60, 20)];
and then use:
[button setTitle:#"text" forState:UIControlStateNormal];
where you must specific the control state (highlighted, selected, etc.)
try for example,
UIButton *firstLabel = [UIButton buttonWithType:UIButtonTypeCustom];
firstLabel.frame = CGRectMake(0, 60, 100, 50); //set the frame
[firstLabel setTitle:#"Hello" forState:UIControlStateNormal];
[firstLabel setBackgroundColor:[UIColor redColor]];//for test
[firstLabel setTitleColor:[UIColor greenColor] forState:UIControlStateNormal]; //it will always displays green for normal
[firstLabel setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];//if u touch it text changed to white instantly
[firstLabel setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];//if touch it and hold it shows white color
This question already has answers here:
How to change the background color of a UIButton while it's highlighted?
(31 answers)
Closed 9 years ago.
How to change the background color of a button when it is press?
#property (weak, nonatomic) IBOutlet UIButton *buttonDeleteOutlet;
My button has not the method: setBackgroundColor (UIColor *) forState:(UIControlState *). Only setBackgroundColor:(UIColor *).
No visible #interface for 'UIButton' declares the selector
'setBackgroundColor:forState:'
Why?
You can also try this
(a) I think there is no method like setBackgroundColor: forState: in iOS 6 or iOS 7. So you have to put background color images using below methods
[btn setBackgroundImage:[UIImage imageNamed:#"yourRedButton.png"] forState:UIControlStateHighlighted];
[btn setBackgroundImage:[UIImage imageNamed:#"yourBlueButton.png"] forState:UIControlStateNormal];
(b) Using Tint Color
[YourButton setTintColor:[UIColor color]];
You need to set button's color for normal and highlighted state, such like
[yourButtonName setBackgroundColor:[UIColor redColor] forState:UIControlStateNormal];
[yourButtonName setBackgroundColor:[UIColor blueColor] forState:UIControlStateHighlighted];
[myButton setBackgroundColor:[UIColor blackColor] forState:UIControlStateNormal];
while it is clicked state:
[myButton setBackgroundColor:[UIColor blackColor] forState:UIControlStateHighlighted];
[myButton setBackgroundColor:[UIColor blackColor] forState:UIControlStateSelected];
I want my UIButton to show up the highlighted state when I click over a button that is already selected.
Basically in the highlighted state I apply a *.png image as my UIButton backgroundImage to give a pressed down effect.
But if the button is already in the Selected State When I click over it again I just can't see the highlighted state but it goes straight to the normal state!
Watch the Issue--> Video of the Issue!
Help please
//0 init UIButton
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(x, y, aSide, aSide)];
//1 Give it a backgroundColor
[button setBackgroundColor:aColor];
[..]
//2 Set titleLabel and its style
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[button setTitleColor:[UIColor redColor] forState:UIControlStateSelected];
[button setTitleColor:[UIColor grayColor] forState:UIControlStateHighlighted];
UIImage *shadowImage = [UIImage imageNamed:kBtnShadow];
shadowImage = [shadowImage stretchableImageWithLeftCapWidth:floorf(shadowImage.size.width/2) topCapHeight:floorf(shadowImage.size.height/2)];
[button setBackgroundImage:shadowImage forState: UIControlStateHighlighted];
[button setTitle:aLabel forState: UIControlStateNormal];
//3 Assign tag and Action
[button setTag:tag];
[button addTarget:target action:a forControlEvents:UIControlEventTouchUpInside];
The various states: UIControlStateNormal, UIControlStateSelected, and (UIControlStateSelected | UIControlStateHighlighted) are all actually distinct. If you want your shadowImage to apply both in the (only) highlighted state and in the highlighted+selected state, you must also set:
[button setBackgroundImage:shadowImage forState:(UIControlStateHighlighted | UIControlStateSelected)]
In swift this would be:
button.setBackgroundImage(shadowImage, forState: UIControlState.Selected.union(UIControlState.Highlighted))
In Swift v3 (Nov. 2016):
button.setBackgroundImage(shadowImage, for: UIControlState.selected.union(UIControlState.highlighted))
Swift 4.2
Applicable programmatically only.
aButton.setImage(UIImage(named: "your_image"), for: [.selected, .highlighted])
I'm making a custom UIButton with 2 images, but for some reason the title is just not showing up, the button is showing fine, but without any title.
_button = [UIButton buttonWithType:UIButtonTypeCustom];
_button.frame = CGRectMake(10, 250, 300, 43);
[_button addTarget:self action:#selector(loginClicked:) forControlEvents:UIControlEventTouchUpInside];
[_button setImage:[UIImage imageWithContentsOfFile:normalButtonImg] forState:UIControlStateNormal];
[_button setImage:[UIImage imageWithContentsOfFile:hoverButtonImg] forState:UIControlStateSelected];
[_button setTitle:#"Login" forState:UIControlStateNormal];
[_button setTitle:#"Login" forState:UIControlStateHighlighted];
[_button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[_button setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
[self.view addSubview:_button];
These two lines:
[_button setImage:[UIImage imageWithContentsOfFile:normalButtonImg] forState:UIControlStateNormal];
[_button setImage:[UIImage imageWithContentsOfFile:hoverButtonImg] forState:UIControlStateSelected];
should be
[_button setBackgroundImage:[UIImage imageWithContentsOfFile:normalButtonImg] forState:UIControlStateNormal];
[_button setBackgroundImage:[UIImage imageWithContentsOfFile:hoverButtonImg] forState:UIControlStateSelected];
Explanation: if a foreground image is set for UIButton, the image is placed above the title, so it might hide it. If you want an image and a title to be displayed, you have to set a background image.
When you set the image, that overrides the title. If you can make your image a background image, that will work. Otherwise you will need to create a composite image for the button by essentially creating a new image which is your desired image with the title drawn over it.