I have an image that you can scroll through using UIScrollView. I want to add buttons to it. The buttons need to stay attached to the image and scroll with it, not separately. I need this all done programmatically.
This is the code I have right now:
imageView = UIImageView(image: UIImage(named: "Map 1.png"))
// 2
scrollView = UIScrollView(frame: view.bounds)
scrollView.backgroundColor = UIColor.blackColor()
// 3
scrollView.contentSize = imageView.bounds.size
// 4
scrollView.addSubview(imageView)
view.addSubview(scrollView)
scrollView.contentSize.height = scrollView.frame.size.height
you just need to add button to scrollview:
var button = UIButton.buttonWithType(UIButtonType.System) as UIButton
button.frame = CGRectMake(100, 100, 100, 50)
button.backgroundColor = UIColor.greenColor()
button.setTitle("Button", forState: UIControlState.Normal)
button.addTarget(self, action: "Action:", forControlEvents: UIControlEvents.TouchUpInside)
scrollView.addSubview(button)
Related
Added circular button on self.navigationItem.leftBarButtonItem for specific UIViewController of a TabBarcontroller after switching one tab and getting back to specific tab. The circular button is stretched.
override func viewDidLoad() {
infoButton = UIButton(frame: CGRect(x: 0, y: 0, width: 40, height: 40))
infoButton.sd_setBackgroundImage(with: URL(string: "https://www.w3schools.com/howto/img_avatar.png"), for: .normal)
infoButton.addTarget(self, action: #selector(menuButtonPressed), for: .touchUpInside)
infoButton.layer.cornerRadius = infoButton.bounds.size.width / 2
infoButton.clipsToBounds = true
infoButton.layer.borderWidth = 1.0
infoButton.imageView?.contentMode = .scaleToFill
infoButton.layer.borderColor = UIColor.init(hexString: "#AAC8FF").cgColor
let infoItem = UIBarButtonItem(customView: infoButton)
self.navigationItem.leftBarButtonItem = infoItem
}
Error Image:
You forgot to give infoButton a size. You have to use auto layout. Give it a width constraint with a constant 40 and a height constraint with a constant 40.
I've looked through several threads on here that discuss:
Setting an image for title
Using a button for title
However, I'm trying to combine the two, i.e., clickable image (button) as title.
Unfortunately, while the below code compiles the image doesn't show when assigned as a button. Any suggestions?
func addNavBarImage() {
let navController = navigationController!
let button = UIButton(type: .custom)
var image = UIImage(named: "textLogo")
image = image?.withRenderingMode(.alwaysOriginal)
let bannerWidth = navController.navigationBar.frame.size.width
let bannerHeight = navController.navigationBar.frame.size.height
let bannerX = bannerWidth / 2 - image!.size.width / 2
let bannerY = bannerHeight / 2 - image!.size.height / 2
button.frame = CGRect(x: bannerX, y: bannerY, width: bannerWidth, height: bannerHeight)
button.imageView?.contentMode = .scaleAspectFit
button.imageView?.image = image
button.addTarget(self, action: #selector(self.logoTapped), for: .touchUpInside)
self.navigationItem.titleView = button
}
create UIImageView, add it as titleView and add UITapGestureRecognizer to your UIImageView
let imageView = UIImageView()
imageView.image = UIImage.named("yourImage")
// do any settings to your imageView
let titleTap = UITapGestureRecognizer(target: self, action: #selector(titlePressed))
self.navigationItem.titleView = imageView
self.navigationItem.titleView?.isUserInteractionEnabled = true
self.navigationItem.titleView?.addGestureRecognizer(titleTap)
Working code for me.
let button = UIButton(type: .custom)
button.setImage(UIImage (named: "your_image"), for: .normal)
button.frame = CGRect(x: 0, y: 0, width: 100, height: 40)
button.backgroundColor = UIColor.clear
button.setTitle("Button", for: .normal)
button.addTarget(self, action: #selector(self.clickOnButton), for: .touchUpInside)
self.navigationItem.titleView = button
Here you can see in last line button is directly set to the titleView of navigationItem which will add button at the center of navigation bar.
Action method for button is below:
#objc func clickOnButton(button: UIButton) {
print("Title Tapped")
}
let SearchView = UIView()
SearchView.backgroundColor = UIColor.clear
SearchView.frame = CGRect(x: 0, y: 0, width: 50, height: 50)
let Searchbutton = UIButton(type: .system)
Searchbutton.setImage(UIImage (named: "SEARCH"), for: .normal)
Searchbutton.backgroundColor = .clear
Searchbutton.frame = CGRect(x: -17, y: -20, width: 30, height: 30)
Searchbutton.contentMode = .scaleAspectFit
let WidthConstraint = Searchbutton.widthAnchor.constraint(equalToConstant: 30)
let HeightConstraint = Searchbutton.heightAnchor.constraint(equalToConstant: 30)
WidthConstraint.isActive = true
HeightConstraint.isActive = true
let barButtonItem = UIBarButtonItem(customView: SearchView)
self.navigationItem.rightBarButtonItem = barButtonItem
SearchView.addSubview(Searchbutton)
Searchbutton.addTarget(self, action: #selector(viewanewcontroller(button:)), for: .touchUpInside)
//right search button
After making a button, I wanted to move it little bit to the right. So, i made UI View to move the button inside the view. But, then, after this, the button does not work anymore. Can anyone tell me the solution?
Your code is working fine but need to clarify some points.
Reason Your button not working is below 4 lines
let WidthConstraint = Searchbutton.widthAnchor.constraint(equalToConstant: 30)
let HeightConstraint = Searchbutton.heightAnchor.constraint(equalToConstant: 30)
WidthConstraint.isActive = true
HeightConstraint.isActive = true
As you already set UIButton frame then no need to use of above lines of code.
Yellow color view is your SearchView and green color is your UIButton.
If you use Searchbutton frame like Searchbutton.frame = CGRect(x: -17, y: -20, width: 30, height: 30) then it happens something like below image.
You added UIButton as subview of UIView and when you click on green button which is inside yellow View will work but the area which is outside Yellow area doesn't work.
You need to start UIButton frame from 0,0,30,30
Searchbutton.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
or you can directly set UIButton frame same as UIView frame then it looks like below image.
Searchbutton.frame = SearchView.frame
Below is your Working Code.
let SearchView = UIView()
SearchView.backgroundColor = UIColor.clear
SearchView.frame = CGRect(x: 0, y: 0, width: 50, height: 50)
let Searchbutton = UIButton(type: .system)
Searchbutton.setImage(UIImage (named: "SEARCH"), for: .normal)
Searchbutton.backgroundColor = .clear
Searchbutton.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
Searchbutton.contentMode = .scaleAspectFit
let barButtonItem = UIBarButtonItem(customView: SearchView)
self.navigationItem.rightBarButtonItem = barButtonItem
SearchView.addSubview(Searchbutton)
Searchbutton.addTarget(self, action: #selector(viewanewcontroller(button:)), for: .touchUpInside)
//right search button
You're doing a lot of unnecessary things here. Firstly, you don't need to put your Button in a container view to put it as the right bar button item.
You also don't need to add constraints to your searchbutton, since you have given it a fixed frame.
let Searchbutton = UIButton(type: .system)
Searchbutton.setImage(UIImage (named: "SEARCH"), for: .normal)
Searchbutton.backgroundColor = .clear
Searchbutton.frame = CGRect(x: 0, y: 0, width: 50, height: 50)
Searchbutton.contentMode = .scaleAspectFit
let barButtonItem = UIBarButtonItem(customView: Searchbutton)
self.navigationItem.rightBarButtonItem = barButtonItem
Searchbutton.addTarget(self, action: #selector(viewanewcontroller(button:)), for: .touchUpInside)
Also as Pratik's comment said, you're meant to use lower camel case. so SearchView should be searchView and SearchButton as searchButton
As for moving it to the right, it seems like that isn't possible anymore without either subclassing the UINavigationBar and changing the implementation, or by making UIViews look exactly like the standard Navigation Bar.
Get rid of the space on the right side of a UINavigationBar
I want to add a Subview on my googleAdBanner-Subview. (as a custom close UIButton).
If I add the UIButton as subview to self.view.addSubview(btn), it is working. But since it may take a while to load an Ad, sometimes the UIButton is visible even tho the googleAdBanner is still invisible.
If I add UIButton as subview of googleAdBanner, the UIButton will not be displayed.
override func viewDidLoad() {
super.viewDidLoad()
let googleAdBanner = GADBannerView(frame:CGRectMake(0,self.view.frame.size.height - 50,self.view.frame.size.width,50))
googleAdBanner.adUnitID = "ca-app-pub-xx"
googleAdBanner.rootViewController = self
googleAdBanner.loadRequest(GADRequest())
self.view.addSubview(googleAdBanner)
let btn: UIButton = UIButton(frame: CGRectMake(self.view.frame.size.width - 25, self.view.frame.size.height - 50, 25, 25))
btn.backgroundColor = UIColor.greenColor()
btn.setTitle("Click Me", forState: UIControlState.Normal)
btn.addTarget(self, action: #selector(RootVC.buttonAction(_:)), forControlEvents: UIControlEvents.TouchUpInside)
btn.tag = 1
googleAdBanner.addSubview(btn)
}
What am I missing? Help is very appreciated.
make your 'btn' sth like: let btn: UIButton = UIButton(frame: CGRectMake(0,0, btnWidth, btnHeight)) after adding that as subview to the banner, then adjust the button frame either by setting the CGrect or auto layout
I am creating a custom button with a png image as I have done hundreds of times before.
But for some reason, this time the image isn't scaling with the button size.
func constructInfoViewBtns() {
let buttonsView = UIView.init(frame: CGRectMake(0, 90, self.infoView!.frame.width, 90))
let playPauseBtn = UIButton(type: UIButtonType.Custom) as UIButton
let playPauseBtnImg : UIImage = UIImage(named: "pauseBtn")!
playPauseBtn.setImage(playPauseBtnImg, forState: .Normal)
playPauseBtn.imageView?.contentMode = UIViewContentMode.ScaleAspectFill
playPauseBtn.frame = CGRectMake(0, 0, 55, 55)
playPauseBtn.backgroundColor = UIColor.blueColor()
playPauseBtn.center = CGPointMake(buttonsView.frame.width/2, buttonsView.frame.height/2)
playPauseBtn.addTarget(self, action: "playPauseTrack:", forControlEvents: .TouchDown)
self.playPauseBtn = playPauseBtn
buttonsView.addSubview(self.playPauseBtn!)
self.infoView!.addSubview(buttonsView)
}
What I get is a blue box where the button image is smaller than the button's frame. Like it's padded or something...
add this and try
playPauseBtn.imageEdgeInsets = UIEdgeInsetsMake(25,25,25,25)