I am trying to add a circle background to an image view. But I only see the image without background.
lazy var circle: UIImageView = {
let view = UIImageView()
view.contentMode = .scaleAspectFit
view.image = UIImage(named: "iconsCancelThin")
view.frame = CGRect(x: 0, y: 0, width: 32, height: 32)
view.tintColor = KSColor.neutral700.getColor()
view.backgroundColor = KSColor.neutral700.getColor()
view.clipsToBounds = true
view.layer.cornerRadius = 16
return view
}()
guard let image = circle.image else { return }
self.cancelButton.setBackgroundImage(image, for: .normal, barMetrics: .default)
Related
I've collectionview inside collectionview I've UIImage, what I want to do is to set shadow to that image and also rounded corners, I tried adding UIview with clipsToBounds true after that setting to my imageview, but UIImage returns nil any solutions?
let recommendedCell = collectionView.dequeueReusableCell(withReuseIdentifier: "recommendedCell", for: indexPath) as! RecommendedCollectionViewCell
recommendedCell.config(data: ttest[indexPath.row])
let outerView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
outerView.clipsToBounds = false
outerView.layer.shadowColor = UIColor.black.cgColor
outerView.layer.shadowOpacity = 1
outerView.layer.shadowOffset = CGSize.zero
outerView.layer.shadowRadius = 10
outerView.layer.shadowPath = UIBezierPath(roundedRect: outerView.bounds, cornerRadius: 10).cgPath
recommendedCell.countryImage = UIImageView(frame: outerView.bounds)
recommendedCell.countryImage.clipsToBounds = true
recommendedCell.layer.cornerRadius = 22
return recommendedCell
I have UIBarButton and user can change image just chose photo or gallery image with image picker. My problem is bad scale image.
If I use AspectFit my UIBarButton look like this:
If I use AspectFill my UIBarButton look like this:
and if I try first change size image and after set it, image all time scratched:
This is my code:
func createPhotoBarButton(image: Data) {
let barbtn = UIBarButtonItem()
var image = UIImage(data:image)
if image == nil {
image = UIImage(named: "photoIcon")
}
let imageView = UIImageView(frame: CGRect(x: 0.0, y: 0.0, width: 35.0, height: 35.0))
imageView.image = image?.resizedImage(newSize: CGSize(width: 35, height: 35))?.withRenderingMode(.alwaysOriginal)
// imageView.image = cropToBounds(image: image!, width: 35, height: 35)
// imageView.image = image
imageView.contentMode = .scaleAspectFill
imageView.layer.cornerRadius = imageView.frame.size.height / 2
imageView.layer.masksToBounds = true
imageView.clipsToBounds = true
self.navigationItem.rightBarButtonItem = barbtn
barbtn.customView = imageView
barbtn.customView?.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(photoTapped(_:))))
}
And here func for resize image:
func resizedImage(newSize: CGSize) -> UIImage? {
guard size != newSize else { return self }
let hasAlpha = false
let scale: CGFloat = 0.0
UIGraphicsBeginImageContextWithOptions(newSize, !hasAlpha, scale)
UIGraphicsBeginImageContextWithOptions(newSize, false, 0.0)
draw(in: CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height))
let newImage: UIImage? = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
Help me plz find the right way to resolving my problem.
As I understand your question. I found a solution.
Try this
func createPhotoBarButton(image: Data) {
let barbtn = UIBarButtonItem()
let imageView = UIImageView(frame: CGRect(x: 0.0, y: 0.0, width: 35.0, height: 35.0))
var image = UIImage(data:image)
if image == nil {
image = UIImage(named: "photoIcon")?.resize(maxWidthHeight: Double(imageView.frame.size.width))
}
imageView.image = image
imageView.contentMode = .scaleAspectFill
imageView.layer.cornerRadius = imageView.frame.size.height / 2
imageView.layer.masksToBounds = true
imageView.clipsToBounds = true
self.navigationItem.rightBarButtonItem = barbtn
barbtn.customView = imageView
barbtn.customView?.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(photoTapped(_:))))
}
Resize method
extension UIImage {
func resize(maxWidthHeight : Double)-> UIImage? {
let actualHeight = Double(size.height)
let actualWidth = Double(size.width)
var maxWidth = 0.0
var maxHeight = 0.0
if actualWidth > actualHeight {
maxWidth = maxWidthHeight
let per = (100.0 * maxWidthHeight / actualWidth)
maxHeight = (actualHeight * per) / 100.0
}else{
maxHeight = maxWidthHeight
let per = (100.0 * maxWidthHeight / actualHeight)
maxWidth = (actualWidth * per) / 100.0
}
let hasAlpha = true
let scale: CGFloat = 0.0
UIGraphicsBeginImageContextWithOptions(CGSize(width: maxWidth, height: maxHeight), !hasAlpha, scale)
self.draw(in: CGRect(origin: .zero, size: CGSize(width: maxWidth, height: maxHeight)))
let scaledImage = UIGraphicsGetImageFromCurrentImageContext()
return scaledImage
}
}
Output
Try to create a custom button with the code below:
func createPhotoBarButton(image: Data) {
let imageBtnContainer = UIButton()
let imageBtn = UIButton(frame: CGRect(x: 0, y: 0, width: 30, height: 30))
var image = UIImage(data:image)
if image == nil {
image = UIImage(named: "photoIcon")
}
imageBtn.setImage(image, forState: UIControlState.Normal)
imageBtn.frame = CGRectMake(0, 0, 53, 31)
imageBtn.imageView?.contentMode = .scaleAspectFit
imageBtnContainer.addSubview(imageBtn)
self.navigationItem.rightBarButtonItem = UIBarButtonItem(customView: imageBtnContainer)
...
}
You don't need anymore resizedImage(..) function
Here is working code (swift 4)
override func viewDidLoad() {
let containView = UIView(frame: CGRect(x: 0, y: 0, width: 35, height: 35))
let Button : UIButton = UIButton.init(type: .custom)
Button.frame = CGRect(x: 0, y: 0, width: 35, height: 35)
Button.Round = true
Button.setImage(UIImage(named: "photoIcon"), for: .normal)
Button.addTarget(self, action: #selector(btnTapped), for: .touchUpInside)
containView.addSubview(Button)
let rightBarButton = UIBarButtonItem(customView: containView)
self.navigationItem.rightBarButtonItem = rightBarButton
}
Button Action Here
#objc func btnTapped(_ sender: Any) {
print("Click Event")
}
Extension to Round
extension UIView{
#IBInspectable var Round:Bool{
get{
return false
}
set{
if newValue == true {
self.layer.cornerRadius = self.frame.size.height/2;
self.layer.masksToBounds = true;
}
}
}
}
Output:
in my project I have a Navigation Bar with a Button to open a slide menu.
Now I am trying to set a title image instead of the title string. Unlikely the image is pushed slightly to the right instead of being centered. I thought its because of the slide menu button in the left corner of my navigation bar. If I set a title in main.storyboard everything look properly. Why is it so, that my image won't be centered.
Image function:
func addNavBarImage() {
let navController = navigationController!
let image = UIImage(named: "TransparentLogo")
let imageView = UIImageView(image: image)
let bannerWidth = navController.navigationBar.frame.size.width
let bannerHeight = navController.navigationBar.frame.size.height
let bannerX = bannerWidth - image!.size.width
let bannerY = bannerHeight - image!.size.height
imageView.frame = CGRect(x: bannerX, y: bannerY, width: bannerWidth, height: bannerHeight)
imageView.contentMode = .scaleAspectFit
navigationItem.titleView = imageView
}
Button function:
func addSlideMenuButton(){
let btnShowMenu = UIButton(type: UIButton.ButtonType.system)
btnShowMenu.setImage(self.defaultMenuImage(), for: UIControl.State())
btnShowMenu.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
btnShowMenu.addTarget(self, action: #selector(BaseViewController.onSlideMenuButtonPressed(_:)), for: UIControl.Event.touchUpInside)
btnShowMenu.tintColor = UIColor(red: 3, green: 49, blue: 79)
let customBarItem = UIBarButtonItem(customView: btnShowMenu)
self.navigationItem.leftBarButtonItem = customBarItem;
}
Change the frame of your titleView in func addNavBarImage() like this:-
func addNavBarImage() {
let navController = navigationController!
let image = UIImage(named: "TransparentLogo")
let imageView = UIImageView(image: image)
let bannerWidth = navController.navigationBar.frame.size.width
let bannerHeight = navController.navigationBar.frame.size.height
let bannerX = bannerWidth - image!.size.width
let bannerY = bannerHeight - image!.size.height
imageView.frame = CGRect(x: bannerX, y: bannerY, width: bannerWidth, height: bannerHeight)
imageView.contentMode = .scaleAspectFit
navigationItem.titleView = imageView
}
to this
func addNavBarImage() {
let imageView = UIImageView(image: #imageLiteral(resourceName: "TransparentLogo"))
imageView.frame = CGRect(x: 0, y: 0, width: 170, height: 30)
imageView.contentMode = .scaleAspectFit
let titleView = UIView(frame: CGRect(x: 0, y: 0, width: 170, height: 30))
titleView.addSubview(imageView)
titleView.backgroundColor = .clear
self.navigationItem.titleView = titleView
}
func centeredNavBarImageView() {
if let navcontroller = navigationController {
let image = #imageLiteral(resourceName: "logo")
let imageView = UIImageView(image: image)
let bannerWidth = navcontroller.navigationItem.accessibilityFrame.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
imageView.frame = CGRect(x: bannerX, y: bannerY, width: bannerWidth, height: bannerHeight)
imageView.contentMode = .scaleAspectFit
self.navigationItem.titleView = imageView
}
I have a navigation controller with a navigation bar, I have added a UIView with subview of imageView and UILabel for titleView.
I need to be able to click on that view to do something else with addGestureRecognizer on that view but nothing is printed on the console.
The UIImageView has to be next to the UILabel
Here is the code I tried so far
private func setupNavBarWithUser() {
let titleView = UIView()
let width = titleView.sizeThatFits(CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude)).width
titleView.frame = CGRect(origin:CGPoint.zero, size:CGSize(width: width, height: 500))
let profileImageView = UIImageView()
profileImageView.translatesAutoresizingMaskIntoConstraints = false
profileImageView.contentMode = .scaleAspectFill
profileImageView.layer.cornerRadius = 20
profileImageView.clipsToBounds = true
ImageService.getImage(withURL: NSURL(string: (user?.pictureURL)!)! as URL) { (image) in
profileImageView.image = image
}
titleView.addSubview(profileImageView)
profileImageView.leftAnchor.constraint(equalTo: titleView.leftAnchor).isActive = true
profileImageView.centerYAnchor.constraint(equalTo: titleView.centerYAnchor).isActive = true
profileImageView.widthAnchor.constraint(equalToConstant: 40).isActive = true
profileImageView.heightAnchor.constraint(equalToConstant: 40).isActive = true
let nameLabel = UILabel()
titleView.addSubview(nameLabel)
nameLabel.text = user?.first_name
nameLabel.textColor = .white
nameLabel.translatesAutoresizingMaskIntoConstraints = false
nameLabel.leftAnchor.constraint(equalTo: profileImageView.rightAnchor, constant: 8).isActive = true
nameLabel.centerYAnchor.constraint(equalTo: profileImageView.centerYAnchor).isActive = true
nameLabel.rightAnchor.constraint(equalTo: titleView.rightAnchor).isActive = true
nameLabel.heightAnchor.constraint(equalTo: profileImageView.heightAnchor).isActive = true
titleView.centerXAnchor.constraint(equalTo: titleView.centerXAnchor).isActive = true
titleView.centerYAnchor.constraint(equalTo: titleView.centerYAnchor).isActive = true
self.navigationItem.titleView = titleView
let recognizer = UITapGestureRecognizer(target: self, action: #selector(self.testing))
titleView.isUserInteractionEnabled = true
titleView.addGestureRecognizer(recognizer)
}
#objc func testing() {
print("hello")
}
Hope someone can help me with this problem, much thank you !!
UPDATE this is where I need to add a gesture recognizer
Add this method in viewDidLoad/viewWillAppear
if let navigationBar = self.navigationController?.navigationBar {
// create a button
let button = UIButton(type: .custom)
button.frame = CGRect(x: navigationBar.frame.width/2-20, y: 0, width: 100, height: 40)
button.setTitleColor(.red, for: .normal)
button.setTitle("Button", for: .normal)
button.addTarget(self, action: #selector(self.testing), for: .touchUpInside)
// create a imageview
let profileImageView = UIImageView()
profileImageView.contentMode = .scaleAspectFill
profileImageView.layer.cornerRadius = 20
profileImageView.clipsToBounds = true
profileImageView.frame = CGRect(x: navigationBar.frame.width/2-60, y: 0, width: 40, height: 40)
profileImageView.image = UIImage(named: "heart")
// Add two elements to navigationbar
navigationBar.addSubview(profileImageView)
navigationBar.addSubview(button)
}
As it is highly discouraged to use the Action Sheet for overlay controls I am currently trying to mimick it with my own subview but somehow the containing components wont be displayed?
code:
#IBAction func showActionSheet(sender: AnyObject) {
println("SHOW STUFF")
let newView:UIView = UIView()
let myColor:UIColor = UIColor(red:255.0, green:255.0, blue:255.0, alpha:0.6)
newView.frame = CGRectMake(0, 0, self.view.frame.width, self.view.frame.height)
newView.backgroundColor = myColor
view.addSubview(newView)
var pickerFrame: CGRect = CGRectMake(0, self.view.frame.height-(self.view.frame.height+self.view.frame.height-200), self.view.frame.width-20, self.view.frame.height/2)
var picker: UIDatePicker = UIDatePicker(frame: pickerFrame);
picker.backgroundColor = UIColor.whiteColor()
view.addSubview(picker)
var okButton = UIButton()
okButton.titleLabel?.text = "Ok"
okButton.backgroundColor = UIColor.whiteColor()
okButton.frame = CGRectMake(0 , self.view.frame.width-160, self.view.frame.width, 80)
var cancelButton = UIButton()
cancelButton.titleLabel?.text = "Abbrechen"
cancelButton.backgroundColor = UIColor.whiteColor()
cancelButton.frame = CGRectMake(0 , self.view.frame.width-80, self.view.frame.width, 800)
view.addSubview(okButton)
view.addSubview(cancelButton)
let secondView:UIView = UIView()
secondView.frame = CGRectMake(0, 200, self.view.frame.width, self.view.frame.height)
secondView.backgroundColor = UIColor.grayColor()
view.addSubview(secondView)
}
the secondView was just for testing purposes - it will get drawn normally, but somehow my controls wont be
You are not adding the controls to newView the view you placed over the old view. Also the buttons are too big and white. Try this code. This will make them visible. Adjust their height to match the frame of the view and then set the color back. I just changed the background colors to get an idea of the frame. Also call UIButton.setTitle(:forState:) to set the title of the buttons.
#IBAction func showActionSheet(sender: AnyObject) {
println("SHOW STUFF")
let newView:UIView = UIView(frame: CGRectMake(0, 0, self.view.frame.width, self.view.frame.height))
let myColor:UIColor = UIColor(red:255.0, green:255.0, blue:0, alpha:0.6)
newView.backgroundColor = myColor
view.addSubview(newView)
var pickerFrame: CGRect = CGRectMake(0, 0, self.view.frame.width-20, 200)
var picker: UIDatePicker = UIDatePicker(frame: pickerFrame);
picker.backgroundColor = UIColor.redColor()
newView.addSubview(picker)
var okButton = UIButton()
okButton.setTitle("Ok", forState: UIControlState.Normal)
okButton.setTitle("Ok", forState: UIControlState.Highlighted)
okButton.backgroundColor = UIColor.greenColor()
okButton.frame = CGRectMake(0 , self.view.frame.width-160, self.view.frame.width, 80)
var cancelButton = UIButton()
cancelButton.setTitle("Abbrechen", forState: UIControlState.Normal)
cancelButton.setTitle("Abbrechen", forState: UIControlState.Highlighted)
cancelButton.backgroundColor = UIColor.blueColor()
cancelButton.frame = CGRectMake(0 , self.view.frame.width-80, self.view.frame.width, 200)
newView.addSubview(okButton)
newView.addSubview(cancelButton)
}