Im having trouble creating padding for leftView property of UITextField. The code I have now creates padding for the text which is nice, but I need it for the imageView.
UITextField Subclass method:
Notice x position of paddingView frame doesn't extend view to the right like expected.
func setLeftView(imageView: UIImageView, withPadding padding: CGFloat) {
let height = imageView.frame.height
let width = imageView.frame.width + padding
let paddingView = UIView(frame: CGRect(x: 36, y: 0, width: width, height: height))
paddingView.addSubview(imageView)
self.leftView = paddingView
self.leftViewMode = .always
}
Result:
You need to make changes in your function, just set frame of imageView and set paddingView's X position to 0
func setLeftView(imageView: UIImageView, withPadding padding: CGFloat) {
let height = imageView.frame.height
let width = imageView.frame.width + padding
// Set x position to 0
let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: width, height: height))
/// You need to set frame of imageView so put this line
imageView.frame = CGRect(x: padding, y: 0, width: imageView.frame.width, height: height)
paddingView.addSubview(imageView)
self.leftView = paddingView
self.leftViewMode = .always
}
you have to override:
override func leftViewRect(forBounds bounds: CGRect) -> CGRect
Related
So I added a UIImageView to the right of my UITextField, but I need to add a little bit of padding to the right side so that it doesn't anchor all the way to the right. I tried adding a custom frame but that didn't work, so I'm not too sure how to go about getting that padding. Any help would be much appreaciated.
See TextField Example Here
let titleField : UITextField = {
let titleField = UITextField()
titleField.placeholder = "Title"
titleField.textAlignment = .center
titleField.backgroundColor = .white
titleField.addDoneCancelToolbar()
var imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 10, height: 10))
let image = UIImage(systemName: "exclamationmark.circle")?.withTintColor(.systemRed, renderingMode: .alwaysOriginal)
imageView.image = image
titleField.rightView = imageView
titleField.rightViewMode = .always
// titleField.rightView?.isHidden = true
return titleField
}()
Subclass UITextField and override https://developer.apple.com/documentation/uikit/uitextfield/1619638-rightviewrect.
Just add the extension :
extension UITextField {
func rightImage(_ image: UIImage?, imageWidth: CGFloat, padding: CGFloat) {
let imageView = UIImageView()
imageView.frame = CGRect(x: padding + 2, y: 0, width: imageWidth, height: frame.height)
imageView.contentMode = .scaleAspectFit
imageView.image = image
let containerView = UIView(frame: CGRect(x: 0, y: 0, width: imageWidth + padding , height: frame.height))
containerView.addSubview(imageView)
rightView = containerView
rightViewMode = .always
}
}
To use it :
if let image = UIImage(named: imagename + ".png") {
titlefield.rightImage(image, imageWidth: 30, padding: 5)
}
For my UITextField, I want the border to be removed. So, I tried changing its border color to the background color (with border width of 1) but doing so, faint border lines are seen at the corners. Next, I set the border style to none in the attribute inspector. When I run the app, the border is gone. However, when the text is entered in it, the text gets cropped in the left side as shown in the image. I tried adding padding view to the textfield but it did not fix the issue. How can I solve this?
EDIT:
The textfield is followed by a label. Since I want the label to follow the textfield content, I have not set the width of the textfield. This is shown in the image. When I add padding view with leftViewMode as always, the design in not rendered, and i get the console message:
- changing property masksToBounds in transform-only layer, will have no effect
Following one of the answers from #Surjeet's link, I tried extending the textField as:
class CustomTextField: UITextField {
required init?(coder aDecoder: NSCoder){
super.init(coder: aDecoder)
}
override func textRect(forBounds bounds: CGRect) -> CGRect {
return CGRect(x: bounds.origin.x + 10, y: bounds.origin.y, width: bounds.size.width, height: bounds.size.height)
}
override func editingRect(forBounds bounds: CGRect) -> CGRect {
return self.textRect(forBounds: bounds)
}
}
But still the problem is not solved.
You can add left padding for your textfield and your issue should be resolved.
Swift 4
let paddingView: UIView = UIView.init(frame: CGRect(x: 0, y: 0, width: 5, height: 20))
textField.leftView = paddingView
textField.leftViewMode = .always
text_field.setLeftPaddingPoints(10)
text_field.setRightPaddingPoints(10)
extension UITextField {
func setLeftPaddingPoints(_ amount:CGFloat){
let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: amount, height: self.frame.size.height))
self.leftView = paddingView
self.leftViewMode = .always
}
func setRightPaddingPoints(_ amount:CGFloat) {
let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: amount, height: self.frame.size.height))
self.rightView = paddingView
self.rightViewMode = .always
}
}
I have a textfield called
nameTextField
I rounded the corners with the
nameTexfield.layer.cornerRadius = 5
Now, the text within the textfield is touching the left side. I want to create padding between the text and border. Every post I find uses cgRect, but Swift no longer supports that. Please provide the correct code if you can figure it out and please explain the answer if you can. I appreciate the help! I also need to know where to put the code if there is any.
Customized way to add padding in "left", "right" or "both" side od UITextField.
Step 1:- Add this UITextfield extension
extension UITextField {
enum PaddingSide {
case left(CGFloat)
case right(CGFloat)
case both(CGFloat)
}
func addPadding(_ padding: PaddingSide) {
self.leftViewMode = .always
self.layer.masksToBounds = true
switch padding {
case .left(let spacing):
let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: spacing, height: self.frame.height))
self.leftView = paddingView
self.rightViewMode = .always
case .right(let spacing):
let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: spacing, height: self.frame.height))
self.rightView = paddingView
self.rightViewMode = .always
case .both(let spacing):
let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: spacing, height: self.frame.height))
// left
self.leftView = paddingView
self.leftViewMode = .always
// right
self.rightView = paddingView
self.rightViewMode = .always
}
}
}
Step 2: How to use
// 1. To add left padding
yourTextFieldName.addPadding(.left(20))
// 2. To add right padding
yourTextFieldName.addPadding(.right(20))
// 3. To add left & right padding both
yourTextFieldName.addPadding(.both(20))
As #the4kman says, Swift does support CGRect but the syntax may have changed.
You can try this for instance:
#IBOutlet weak var nameTextField: UITextField! {
didSet {
nameTextField.layer.cornerRadius = 5
nameTextField.layer.borderColor = UIColor.black.cgColor
nameTextField.layer.borderWidth = 1
let leftView = UIView(frame: CGRect(x: 0.0, y: 0.0, width: 100.0, height: 2.0))
nameTextField.leftView = leftView
nameTextField.leftViewMode = .always
}
}
If I do that, I get this fine result
Hope that helps.
Update
You ask for a function instead of setting it in didSet and sure, thats possible, something like:
func addPaddingAndBorder(to textfield: UITextField) {
textfield.layer.cornerRadius = 5
textfield.layer.borderColor = UIColor.black.cgColor
textfield.layer.borderWidth = 1
let leftView = UIView(frame: CGRect(x: 0.0, y: 0.0, width: 100.0, height: 2.0))
textfield.leftView = leftView
textfield.leftViewMode = .always
}
and then you' call that in viewDidLoad for instance like so:
override func viewDidLoad() {
super.viewDidLoad()
addPaddingAndBorder(to: nameTextField)
}
Better to subclass the textview than to add a left view incase you are planning to add an image as a left view.
class UITextFieldPadding: UITextField {
let padding = UIEdgeInsets(top: 0, left: 40, bottom: 0, right: 0)
override open func textRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
override open func placeholderRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
override open func editingRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
}
I want to calculate view size with autolayout, but it can not get right value. Here is my code
// build views
let view = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
let posterView = UIImageView(frame: CGRect(x: 0, y: 0, width: 50, height: 100))
let titleLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 20))
titleLabel.text = "Title "
titleLabel.font = UIFont.systemFontOfSize(16) // label height = 19.5
view.addSubview(posterView)
view.addSubview(titleLabel)
posterView.snp_makeConstraints { (make) in
make.top.left.right.equalTo(view).offset(0)
make.width.equalTo(posterView.snp_height).multipliedBy(16.0 / 9.0)
}
titleLabel.snp_makeConstraints { (make) in
make.top.equalTo(posterView.snp_bottom).offset(0)
make.left.equalTo(view).offset(0).priority(750)
make.right.equalTo(view).offset(0).priority(750)
make.bottom.equalTo(view.snp_bottom).offset(0)
}
// calculate
view.translatesAutoresizingMaskIntoConstraints = false
let heightConstraint = NSLayoutConstraint(item: view, height: 90+19.5)
view.addConstraint(heightConstraint)
let fittingSize = view.systemLayoutSizeFittingSize(UILayoutFittingCompressedSize)
// the fittingSize is (40,109.5), not expect value (160, 109.5)
Please don't tell me how to calculate dynamic height for UITableViewCell. This is a opposite problem from height to width.
Thanks
I want to do a custom progress view for my iOS app, with 2 dots. Here is my code:
import UIKit
#IBDesignable
class StepProgressView: UIView {
#IBInspectable var progress: Float = 0
var progressColor = UIColor.blackColor()
var bgColor = UIColor.whiteColor()
override func layoutSubviews() {
self.backgroundColor = UIColor.clearColor()
}
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func drawRect(rect: CGRect) {
// Drawing code
let height = frame.height-8
let circle1 = UIView(frame: CGRect(x: frame.width*(1/3), y: 0, width: frame.height, height: frame.height))
circle1.backgroundColor = bgColor
circle1.layer.cornerRadius = frame.height/2
addSubview(circle1)
let circle2 = UIView(frame: CGRect(x: frame.width*(2/3), y: 0, width: frame.height, height: frame.height))
circle2.backgroundColor = bgColor
circle2.layer.cornerRadius = frame.height/2
addSubview(circle2)
let bgView = UIView(frame: CGRect(x: height/2, y: 4, width: frame.width-height/2, height: height))
bgView.backgroundColor = bgColor
bgView.layer.cornerRadius = height/2
addSubview(bgView)
let progressView = UIView(frame: CGRect(x: 0, y: 4, width: frame.width*CGFloat(progress), height: height))
progressView.backgroundColor = progressColor
progressView.layer.cornerRadius = height/2
addSubview(progressView)
}
}
The result:
However, as you can see, the circles aren't "filled" when the progression pass over one of them, and I don't know how to do that. I could create another view but I don't know how to handle the corner radius.
Can you help me ?
Thanks