I would like to place a bluetooth icon in my Navigation Bar, to display a connected / disconnected status.
I tried to add a BarButtonItem, set the image as my bluetooth icon, and disabled and enabled this Button. This works fine so far, and is looking ok to me, but I don't want to have this button clickable, so that it doesn't change the color on clicking on the icon.
Is this possible, or is there a way to put a UIImageView into the Navigation Bar?
Thanks!
Try disabling touch events using:
myBarButtonItem.isUserInteractionEnabled = false
navigationItem.rightBarButtonItem?.isEnabled = false
Add following code will fix your issue.
let btnBluetooth = UIButton()
btnBluetooth.setImage(#imageLiteral(resourceName: "icon_bluetooth"), for: .normal)
btnBluetooth.setImage(#imageLiteral(resourceName: "icon_bluetooth"), for: .highlighted)
btnBluetooth.tintColor = .red
let barButton = UIBarButtonItem(customView: btnBluetooth)
self.navigationItem.rightBarButtonItem = barButton
This code will add custom button where you can manage image for normal and highlight mode. For bluetooth state management, change tintColor of UIButton which you have added in UIBarButtonItem as custom view.
If you click on button, this will not change color of image.
If you don't want to add UIButton you can add UIImageView by following code.
let imgBluetooth = UIImageView(image: #imageLiteral(resourceName: "icon_bluetooth"))
imgBluetooth.tintColor = .red
let barButton = UIBarButtonItem(customView: imgBluetooth)
self.navigationItem.rightBarButtonItem = barButton
Also, make sure you have selected Render As as Template Image for your bluetooth icon which is added inside Assets.xcassets to affect tintColor. Otherwise image will be display as original. See follow:
Related
I want to set an image to the button
But every time when I add an image to the button it shows a huge image and the image doesn't fit the button size. Like this:
yourButton.clipsToBounds = true
yourButton.contentMode = .scaleAspectFill
// Use setBackgroundImage or setImage
yourButton.setBackgroundImage(UIImage(named: "yourImage"), for: .normal)
Change button style from 'Plain' to 'Default'
Click here for the image reference
I am writing UITest cases for my iOS Swift app. In the app I have created a custom right item button on the navigation bar in this way:
let barButtonItem = UIBarButtonItem(customView: customView)
navigationItem.rightBarButtonItem = barButtonItem
Now I don't know how to access this custom right item button in XCUITest and really need some help. Thanks in advance.
You cannot access a UIBarButtonItem, because it is not a real UIElement (it is not a UIView subclass), but you probably want to access the UIButton inside your right bar button item anyway.
There are several ways how you could access the button, here are two ideas:
1. Query the first button in the navigation bar
let rightNavBarButton = XCUIApplication().navigationBars.children(matching: .button).firstMatch
XCTAssert(rightNavBarButton.exists)
That way you access the first UIButton inside a UINavigationBar.
This only works if there is only one button in your navigation bar. So it will break when you add another button.
2. Use an accessibility identifier
You can define a accessibility identifier for the button inside your right bar button item and use that to access it during the test:
In your app:
let barButtonItem = UIBarButtonItem(customView: customView)
barButtonItem.accessibilityIdentifier = "navbarRightItem"
navigationItem.rightBarButtonItem = barButtonItem
In your test:
let rightNavBarButton = XCUIApplication().navigationBars.buttons["navbarRightItem"]
XCTAssert(rightNavBarButton.exists)
Just make sure you are using accessibilityIdentifier and not accessibilityLabel. Because accessibilityLabel will be read by VoiceOver for handicapped users and should contain useful text.
You have to assign an accessibilityIdentifier to the button
barButtonItem.accessibilityIdentifier = “barButtonItemID”
If didn’t work set IsAccessibilityElement to YES/true
How to add background image on top layout the one who has back button . ive tried adding imageview on it using the drag and drop but image is hiding on the back. Anyone has an idea? Thanks
Add background image on top layout the one who has back button
Its called NavigationBar. You can set background image by this:
self.navigationController.navigationBar.setBackgroundImage(UIImage(named: "navBG.png"), for: .default)
Edit:
how about adding a label on a navigation bar?
self.title = "My Title"
Swift 4
self.navigationController?.navigationBar.setBackgroundImage(UIImage(named: "Background.jpg"), for: .default)
I want to set the right button item to be this:
It has the title and the down image.
But in storyboard, I can not do that:
I only can set one of the title and image, if I set image, I can not set the title, if I set the title, I can not set the image.
I have tried use the UIButton and the Button Bar Item to do it, get the same result.
Some friend know how to do with that?
You can simply add drag UIButton to rightBarItem in storyBoard . and customise that button as per your needs ..
Check View hierarchy after adding UIButton .
you can try this add the custom view to your bar button item
var RightView = UIView(frame: CGRectMake(0, 0, 100, 44))
// you can add in RightView, your title in uilable and your image in imageview
var RightBarButton = UIBarButtonItem(customView: RightView)
self.navigationItem.rightBarButtonItem = RightBarButton
I created a button and when it is clicked, it's background image changes. However the issue is when I click it , it gives a rectangle with a color.
Image:
Should Be:
I don't want to see that clicking background.
My codes are below:
let on = UIImage(named: "on") as UIImage
let off = UIImage(named: "off") as UIImage
btn.setBackgroundImage(off, forState: .Normal)
When you use Storyboard buttons which is IBOutlet UIButton object. By default it is not set as a custom type. So if you set background of this button as an image, It shows border of that button with the image.
For Storyboard variables:
Select UIButton control in Storyboard. Go to Attribute Inspector > Change type System to Custom
See the reference images
For programmatically created buttons:
If you create UIButton object programmatically than set button type as UIButtonTypeCustom.
Objective C Code:
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
Swift Code:
var button = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
just use this
btn.setBackgroundImage(nil, forState: .Normal)