SimpleAlert - SwiftGit

SwiftUI

SimpleAlert

October 28, 2023

It is simple and easily customizable alert. Can be used as UIAlertController.

Appetize’s Demo

Requirements

Swift 5.0
iOS 9.0 or later

How to Install SimpleAlert

CocoaPods

Add the following to your Podfile:


                                              
                                                pod “SimpleAlert”

Carthage

Add the following to your Cartfile:


                                              
                                                github “KyoheiG3/SimpleAlert”

Usage

Example

View simple Alert


                                              
                                                let alert = AlertController(title: “title”, message: “message”, style: .alert)
alert.addTextField()

alert.addAction(AlertAction(title: “Cancel”, style: .cancel))

alert.addAction(AlertAction(title: “OK”, style: .ok))
present(alert, animated: true, completion: nil)

Customize default contents


                                              
                                                let alert = AlertController(title: “title”, message: “message”, style: .alert)

alert.addTextField { textField in

textField.frame.size.height = 33

textField.backgroundColor = nil

textField.layer.borderColor = nil

textField.layer.borderWidth = 0

}

alert.configureContentView { view in

view.titleLabel.textColor = UIColor.lightGrayColor()

view.titleLabel.font = UIFont.boldSystemFontOfSize(30)

view.messageLabel.textColor = UIColor.lightGrayColor()

view.messageLabel.font = UIFont.boldSystemFontOfSize(16)

view.textBackgroundView.layer.cornerRadius = 3.0

view.textBackgroundView.clipsToBounds = true

}
alert.addAction(AlertAction(title: “Cancel”, style: .cancel))

alert.addAction(AlertAction(title: “OK”, style: .ok))

present(alert, animated: true, completion: nil)

Rounded button Alert View


                                              
                                                let alert = AlertController(view: UIView(), style: .alert)

alert.contentWidth = 144

alert.contentCornerRadius = 72

alert.contentColor = .white

let action = AlertAction(title: “?”, style: .cancel) { action in

}
alert.addAction(action)

action.button.frame.size.height = 144

action.button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 96)

action.button.setTitleColor(UIColor.red, for: .normal)
present(alert, animated: true, completion: nil)

More customizable if you create a subclass


                                              
                                                class CustomAlertController: AlertController {

override func addTextField(configurationHandler: ((UITextField) -> Void)? = nil) {

super.addTextField { textField in

textField.frame.size.height = 33

textField.backgroundColor = nil

textField.layer.borderColor = nil

textField.layer.borderWidth = 0
configurationHandler?(textField)

}

}
override func configureActionButton(_ button: UIButton, at style :AlertAction.Style) {

super.configureActionButton(button, at: style)
switch style {

case .ok:

button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 20)

button.setTitleColor(UIColor.gray, for: UIControlState())

case .cancel:

button.backgroundColor = UIColor.darkGray

button.setTitleColor(UIColor.white, for: UIControlState())

case .default:

button.setTitleColor(UIColor.lightGray, for: UIControlState())

default:

break

}

}
override func configureContentView(_ contentView: AlertContentView) {

super.configureContentView(contentView)
contentView.titleLabel.textColor = UIColor.lightGray

contentView.titleLabel.font = UIFont.boldSystemFont(ofSize: 30)

contentView.messageLabel.textColor = UIColor.lightGray

contentView.messageLabel.font = UIFont.boldSystemFont(ofSize: 16)

contentView.textBackgroundView.layer.cornerRadius = 10.0

contentView.textBackgroundView.clipsToBounds = true

}

}

Class

AlertAction

Style

default
ok
cancel
destructive

Initialize


                                              
                                                init(title: String, style: SimpleAlert.AlertAction.Style, dismissesAlert: Bool = default, handler: ((SimpleAlert.AlertAction?) -> Swift.Void)? = default)

Set title and style, can add button.
Set button action handler.

Variable


                                              
                                                var isEnabled: Bool

Set button enabled.


                                              
                                                let button: UIButton

Can get a button.
Can get after button has been added to the AlertController.

AlertContentView

backgroundColor of AlertContentView will be reflected in the overall backgroundColor.


                                              
                                                var baseView: UIView!

Base view for contents


                                              
                                                var titleLabel: UILabel!

Title label


                                              
                                                var messageLabel: UILabel!

Message Label


                                              
                                                var textBackgroundView: UIView!

Base view for Text Field
UIAlertControllerStyle is in the case of actionSheet does not appear.

AlertController

initialize


                                              
                                                init(title: String?, message: String?, style: UIAlertControllerStyle)

Set title, message and style, can add button.
Set button action handler.


                                              
                                                init(title: String? = default, message: String? = default, view: UIView?, style: UIAlertControllerStyle)

Can also set custom view.

Variable


                                              
                                                open var contentWidth: CGFloat

open var contentColor: UIColor?

open var contentCornerRadius: CGFloat?

open var coverColor: UIColor

open var message: String?

Can change alert style.


                                              
                                                public private(set) var actions: [SimpleAlert.AlertAction]

public var textFields: [UITextField] { get }

Can get actions and text fields that is added.

Function


                                              
                                                func addTextField(configurationHandler: ((UITextField) -> Swift.Void)? = default)

Add Text Field, and set handler.
UIAlertControllerStyle is in the case of actionSheet does not add.


                                              
                                                func addAction(_ action: SimpleAlert.AlertAction)

Add action button.


                                              
                                                func configureActionButton(_ button: UIButton, at style: SimpleAlert.AlertAction.Style)

Override if would like to configure action button.


                                              
                                                func configureContentView(_ contentView: SimpleAlert.AlertContentView)