On iOS 6 SDK I wrote the following lines of code to display an image inside a button:
NSURL *thumbURL2 = [NSURL URLWithString:#"http://example.com/thumbs/2.jpg"];
NSData *thumbData2 = [NSData dataWithContentsOfURL:thumbURL2];
UIImage *thumb2 = [UIImage imageWithData:thumbData2];
[btn2 setImage:thumb2 forState:UIControlStateNormal];
[self.view addSubview:btn2];
But now with Xcode 5 and iOS 7 this doesn't work. The button doesn't contain the image. The button is filled with blue color.
In iOS7 there is new button type called UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0), // standard system button
Check your .xib file and change button type to Custom
To do this programmatically, add this line to the viewDidLoad:
[UIButton buttonWithType:UIButtonTypeSystem];
It seems iOS 7 is using the image provided just as an Alpha mask for displaying the button's tint color.
Changing the button type to UIButtonTypeCustom did the trick for me (thanks user716216!).
Setting the image as background doesn't always work if you already have a background image, as was my case.
Swift 3, 4, 5 :
let image = UIImage(named: "my-image")
myButton.setImage(image.withRenderingMode(.alwaysOriginal), for: .normal)
There's a good chance that the image is there and you just can't see it. Try changing the button's type to UIButtonTypeCustom. If that doesn't work, set the button's background color to [UIColor clearColor];
For swift:
let aButton = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
The issue is the TintColor. By default, iOS throws a blue tint color over every button. You can get around it through 3 ways.
Change the tint color. [button setTintColor:[UIColor blackColor]];
This may color your image in ways you don't want it to.
As most other suggested, set the background image. [button setBackgroundImage:[UIImage...]];
Add an UIImageView to your button.
UIImageView * img = [[UIImageView alloc] initWithImage:[UIImage...]];
[button addSubView:img];
I had the same issue.
On my storyboard I had a button without any image.
I would then assign the image in the code.
IOS 7 came and I got a lot of blue images.
The resolution was simple yet confusing. If I assign any image on the storyboard and then change the image at run time it works fine.
You always must specify a starting image on the storyboard even if you are not going to use it.
This worked for me
[myButton1 setBackgroundImage:[UIImage imageNamed:#"phones.png"] forState:UIControlStateNormal];
Note:Remove front image before doing this.
Old thread, but I wanted to chime in because I just had the same problem. The issue was just that you are calling setImage when you should call setBackgroundImage.
In iOS 13 -- just set the Tint property to White, while keeping the type of the UIButton as Custom
None of the given solutions were working for me. If you do not set an initial image in Storyboard, you can still change the image of the button by using setBackgroundImage.
For your example, only a minor change is needed.
NSURL *thumbURL2 = [NSURL URLWithString:#"http://example.com/thumbs/2.jpg"];
NSData *thumbData2 = [NSData dataWithContentsOfURL:thumbURL2];
UIImage *thumb2 = [UIImage imageWithData:thumbData2];
[btn2 setBackgroundImage:thumb2 forState:UIControlStateNormal];
[self.view addSubview:btn2];
This Problem is called blue color problem of the button in xcode.
When we make button by code the button shows the blue tint color by default.This can be solved byt assigning tint color to black or white accordingly to your cell's color.
The code is :
UIImage *closebtnimg = [UIImage imageNamed:#"icon_uncheck.png"];
UIImage *closebtnimg1 = [UIImage imageNamed:#"icon_checked.png"];
Custombutton *button = [Custombutton buttonWithType:UIButtonTypeRoundedRect];
[button setFrame:CGRectMake(52, 66, 25, 24)];
[button setBackgroundImage:closebtnimg forState:UIControlStateNormal];
[button setBackgroundImage:closebtnimg1 forState:UIControlStateSelected];
[button setTintColor:[UIColor whiteColor]];
[cell.contentView addSubview:button];
[button addTarget:self action:#selector(changeImage:) forControlEvents:UIControlEventTouchUpInside];
Using Xcode 9.2 none of the above solutions worked for what I was looking for.
I was looking for a solution that will let me set .normal and .selected UIControlState images inside the storyboard for their original rendering mode, but, inside the Swift file, no string literals should exist regarding the image names.
Basically, inside your code you will get the image you set inside your storyboard for .normal state and re-render it as .alwaysOriginal (Same for .selected state), then, you will set that image (which is now rendered as original and won't be affected by the tint) for the relevant state (.normal and .selected) of your UIButton.
Here it is:
// Get your .normal image (you set via your storyboard) and render it as original
let unselectedImage = yourButton.image(for: .normal)?.withRenderingMode(.alwaysOriginal)
// Set your normal image but this time rendered as original
yourButton.setImage(unselectedImage, for: .normal)
// Same for selected state
let selectedImage = yourButton.image(for: .selected)?.withRenderingMode(.alwaysOriginal)
yourButton.setImage(selectedImage, for: .selected)
This way you can set your button image states and if the image name will change, it won't affect your code.
making the tint color as clearcolor for all the four states(Default,Highlighted,selected,disabled) worked for me.
In Swift 4, initialize your UIButton and assign uyour image Data as follows:
let myButton = UIButton(type: .cutsom)
myButton.setImage(UIImage(data:myImageData), for: .normal)
I have a button that is initialized like that>
self.button = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
action:#selector(doAction)];
Later, I am attaching a custom background to it, like that>
[self.button setBackgroundImage:[UIImage imageNamed:#"customNavBar_button_right_enabled"]
forState:UIControlStateNormal
barMetrics:UIBarMetricsDefault];
and puting it onto navbar.
[self.navigationItem setRightBarButtonItem:self.button
animated:NO];
This image has fixed size. I want that button to have fully custom background image with no "intelligent" resizing with UIEdgeInsets.I don't want any resizing. But for some reason, it behaves like its insets would be active and it is resized to have bigger width, with roughly the middle half of picture considerably stretched to provide for the wider button.
Why is this happening? How can I prevent this to happen?
The easiest way to achieve a bar button item with a custom image is by:
Drag a UIButton onto the storyboard.
Set the button Type to Custom and set your image for that button.
Drag the button onto your Toolbar.
The storyboard automatically creates a UIBarButtonItem and adds your UIButton as a subview. Or if you do NOT want to use storyboards you could implement the following:
// Initialize the UIButton
UIImage *buttonImage = [UIImage imageNamed:#"buttonImage.png"];
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeCustom];
[aButton setImage:buttonImage forState:UIControlStateNormal];
aButton.frame = CGRectMake(0.0, 0.0, buttonImage.size.width, buttonImage.size.height);
// Initialize the UIBarButtonItem
UIBarButtonItem aBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:aButton];
// Set the Target and Action for aButton
[aButton addTarget:self action:#selector(aButtonClicked:) forControlEvents:UIControlEventTouchUpInside];
Hope it helps!
EDIT: Do not forget to add the aBarButtonItem to the UIToolbar.
How do I create a custom progress bar on iOS?
You did not post the image :) But you can use UISlider with "userInteractionEnabled" set to NO and thumb set to small, transparent image. Here's some code:
UIImage* slider = [UIImage imageNamed:#"empty.png"];
UIImage* leftImage = [UIImage imageNamed:#"left_track.png"];
UIImage* rightImage = [UIImage imageNamed:#"right_track.png"];
[self.slider setThumbImage::slider forState:UIControlStateNormal];
[self.slider setThumbImage::slider forState:UIControlStateSelected];
[self.slider setThumbImage::slider forState:UIControlStateHighlighted];
[self.slider setMinimumTrackImage::leftImage forState:UIControlStateNormal];
[self.slider setMaximumTrackImage::rightImage forState:UIControlStateNormal];
Ofcourse, images left and right must be scalable.
You can have 2 images, the "on" image is on top of the "off" image, and each in their own UIImageView. Enable clipsToBound for the UIImageView containing "on" image. Then you can adjust the width of the bounds for the top image according to the number that controls it. You can also choose to make the change continuous or discreet.
i stared to built an app and i want that all my buttons in my app will look the same.
i write code for one button and i want my other buttons look alike.
here is my button code:
UIImage *butimage = [UIImage imageNamed:#"button1.png"];
UIImage *butimage3 = [UIImage imageNamed:#"button1press.png"];
UIImage *butpress = [butimage3 stretchableImageWithLeftCapWidth:15 topCapHeight:0];
UIImage *butimage2 = [butimage stretchableImageWithLeftCapWidth:15 topCapHeight:0];
[button1 setBackgroundImage:butimage2 forState:UIControlStateNormal];
[button1 setBackgroundImage:butpress forState:UIControlStateHighlighted];
[button1 setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
[button1 setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];
how can i do it?
thanks
Try this:
[button1 addTarget:self action:#selector(anAction:) forControlEvents:UIControlEventTouchUpInside]
I'm assuming you've created only a button, and assigning it all the images.
If you create more buttons, the code for giving them an action is the above one.
For the anAction: part, create a -(void)anAction:(id)sender (i.e) in order to tell the button to run that specific action.
EDIT
Declare your buttons as IBOutlets, place them in your viewController.xib and link them.
Then declare their properties in viewWillAppear or viewDidLoad (the code you wrote, basically).
Then if you want them to perform some actions, write some -(IBAction)actionForButton:(id)sender and just assign them to the buttons in IB.
I have a UIButton in each of my tableview's cells. I want to glow the uibutton while click action happends. I set an image as its background image using the code
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(270,10,30,30);
[button setImage:[UIImage imageNamed:#"image.png"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(action:) forControlEvents:UIControlEventTouchUpInside];
button.backgroundColor = [UIColor clearColor];
The image.png is little bit darker image. Because i want to show a click effect by showing a glowed image.
Now shall i glow the image.png by code while clicking happends? Or should i create a new glowing image(say image_glow.png) with the same dimension and replace the previous one?
Whatever, please explain how to implement this....
The best way is to use multiple images.
You can set different image to different state of a UIButton by using setImage method.
As i see, you have set image only for UIControlStateNormal state, which makes all other states of a button to use the same image.
reference : UIButton States
Hope this helps.