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July 20, 2021 14:13
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Custom IBDesignable text field written in Swift 3
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| // Copyright © 2017 Kalpesh Talkar. All rights reserved. | |
| // | |
| // Licensed under the Apache License, Version 2.0 (the "License"); | |
| // you may not use this file except in compliance with the License. | |
| // You may obtain a copy of the License at | |
| // | |
| // http://www.apache.org/licenses/LICENSE-2.0 | |
| // | |
| // Unless required by applicable law or agreed to in writing, software | |
| // distributed under the License is distributed on an "AS IS" BASIS, | |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| // See the License for the specific language governing permissions and | |
| // limitations under the License. | |
| // | |
| // For support: https://gist.github.com/KalpeshTalkar/0ec476fd56de0c8caebc000ea4f17247 | |
| // | |
| import UIKit | |
| @IBDesignable | |
| public class KTextField: UITextField { | |
| // MARK: - IBInspectable properties | |
| /// Applies border to the text view with the specified width | |
| @IBInspectable public var borderWidth: CGFloat = 0.0 { | |
| didSet { | |
| layer.borderWidth = borderWidth | |
| layer.borderColor = borderColor.cgColor | |
| } | |
| } | |
| /// Sets the color of the border | |
| @IBInspectable public var borderColor: UIColor = .clear { | |
| didSet { | |
| layer.borderColor = borderColor.cgColor | |
| } | |
| } | |
| /// Make the corners rounded with the specified radius | |
| @IBInspectable public var cornerRadius: CGFloat = 0.0 { | |
| didSet { | |
| layer.cornerRadius = cornerRadius | |
| } | |
| } | |
| /// Applies underline to the text view with the specified width | |
| @IBInspectable public var underLineWidth: CGFloat = 0.0 { | |
| didSet { | |
| updateUnderLineFrame() | |
| } | |
| } | |
| /// Sets the underline color | |
| @IBInspectable public var underLineColor: UIColor = .groupTableViewBackground { | |
| didSet { | |
| updateUnderLineUI() | |
| } | |
| } | |
| /// Sets the placeholder color | |
| @IBInspectable public var placeholderColor: UIColor = .lightGray { | |
| didSet { | |
| let placeholderStr = placeholder ?? "" | |
| attributedPlaceholder = NSAttributedString(string: placeholderStr, attributes: [NSForegroundColorAttributeName: placeholderColor]) | |
| } | |
| } | |
| public override var placeholder: String? { | |
| didSet { | |
| let placeholderStr = placeholder ?? "" | |
| attributedPlaceholder = NSAttributedString(string: placeholderStr, attributes: [NSForegroundColorAttributeName: placeholderColor]) | |
| } | |
| } | |
| /// Sets left margin | |
| @IBInspectable public var leftMargin: CGFloat = 10.0 { | |
| didSet { | |
| setMargins() | |
| } | |
| } | |
| /// Sets right margin | |
| @IBInspectable public var rightMargin: CGFloat = 10.0 { | |
| didSet { | |
| setMargins() | |
| } | |
| } | |
| // MARK: - init methods | |
| override public init(frame: CGRect) { | |
| super.init(frame: frame) | |
| applyStyles() | |
| } | |
| required public init?(coder aDecoder: NSCoder) { | |
| super.init(coder: aDecoder) | |
| applyStyles() | |
| } | |
| // MARK: - Layout | |
| override public func layoutSubviews() { | |
| super.layoutSubviews() | |
| updateUnderLineFrame() | |
| updateAccessoryViewFrame() | |
| } | |
| // MARK: - Styles | |
| private func applyStyles() { | |
| applyUnderLine() | |
| setMargins() | |
| } | |
| // MARK: - Underline | |
| private var underLineLayer = CALayer() | |
| private func applyUnderLine() { | |
| // Apply underline only if the text view's has no borders | |
| if borderStyle == UITextBorderStyle.none { | |
| underLineLayer.removeFromSuperlayer() | |
| updateUnderLineFrame() | |
| updateUnderLineUI() | |
| layer.addSublayer(underLineLayer) | |
| layer.masksToBounds = true | |
| } | |
| } | |
| private func updateUnderLineFrame() { | |
| var rect = bounds | |
| rect.origin.y = bounds.height - underLineWidth | |
| rect.size.height = underLineWidth | |
| underLineLayer.frame = rect | |
| } | |
| private func updateUnderLineUI() { | |
| underLineLayer.backgroundColor = underLineColor.cgColor | |
| } | |
| // MARK: - Margins | |
| private var leftAcessoryView = UIView() | |
| private var rightAcessoryView = UIView() | |
| private func setMargins() { | |
| // Left Margin | |
| leftView = nil | |
| leftViewMode = .never | |
| if leftMargin > 0 { | |
| if nil == leftView { | |
| leftAcessoryView.backgroundColor = .clear | |
| leftView = leftAcessoryView | |
| leftViewMode = .always | |
| } | |
| } | |
| updateAccessoryViewFrame() | |
| // Right Margin | |
| rightView = nil | |
| rightViewMode = .never | |
| if rightMargin > 0 { | |
| if nil == rightView { | |
| rightAcessoryView.backgroundColor = .clear | |
| rightView = rightAcessoryView | |
| rightViewMode = .always | |
| } | |
| updateAccessoryViewFrame() | |
| } | |
| } | |
| private func updateAccessoryViewFrame() { | |
| // Left View Frame | |
| var leftRect = bounds | |
| leftRect.size.width = leftMargin | |
| leftAcessoryView.frame = leftRect | |
| // Right View Frame | |
| var rightRect = bounds | |
| rightRect.size.width = rightMargin | |
| rightAcessoryView.frame = rightRect | |
| } | |
| } |
And if I want to change the textField contentType
Hey @Nishadarora,
KTextField inherits from UITextField so you can use the following:
textField.textContentType = UITextContentType.emailAddress // Set content type as email
textField.keyboardType = UIKeyboardType.emailAddress // Set keyboard type as email
Let me know if you are facing any issues with this.
Thanks.
oh ok!
ty so much
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And if I want to change the textField contentType