Khala-wan/SimpleAlert

Customizable simple Alert and simple ActionSheet for Swift

SimpleAlert

It is simple and easily customizable alert.
Can be used as UIAlertController, it supports from iOS7.

Appetize's Demo

Requirements

• Swift 3.0
• iOS 7.0 or later

How to Install SimpleAlert

iOS 8+

Cocoapods

Add the following to your Podfile:

pod "SimpleAlert"
use_frameworks!

Note: the use_frameworks! is required for pods made in Swift.

Carthage

Add the following to your Cartfile:

github "KyoheiG3/SimpleAlert"

iOS 7

Just add everything in the source file to your project.

Usage

• Add SimpleAlert namespace for iOS7

import

If target is ios8.0 or later, please import the SimpleAlert.

import SimpleAlert

Example

View simple Alert

let alert = AlertController(title: "title", message: "message", style: .Alert)

alert.addTextFieldWithConfigurationHandler()
alert.addAction(AlertAction(title: "Cancel", style: .Cancel))
alert.addAction(AlertAction(title: "OK", style: .OK))

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

Customize default contents

let alert = AlertController(title: "title", message: "message", style: .Alert)
alert.addTextFieldWithConfigurationHandler() { textField in
    textField.frame.size.height = 33
    textField.backgroundColor = nil
    textField.layer.borderColor = nil
    textField.layer.borderWidth = 0
}
alert.configContentView = { [weak self] view in
    if let view = view as? AlertContentView {
        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))
presentViewController(alert, animated: true, completion: nil)

Rounded button Alert View

let alert = AlertController(view: UIView(), style: .Alert)
let action = AlertAction(title: "?", style: .Cancel)

alert.addAction(action)
action.button.frame.size.height = 144
action.button.titleLabel?.font = UIFont.boldSystemFontOfSize(96)
action.button.setTitleColor(UIColor.redColor(), forState: .Normal)

alert.configContainerWidth = {
    return 144
}
alert.configContainerCornerRadius = {
    return 72
}
alert.configContentView = { view in
    view.backgroundColor = UIColor.whiteColor()
}

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

More customizable if you create a subclass

class AlertController: AlertController {
    override func addTextFieldWithConfigurationHandler(configurationHandler: ((UITextField!) -> Void)? = nil) {
        super.addTextFieldWithConfigurationHandler() { textField in
            textField.frame.size.height = 33
            textField.backgroundColor = nil
            textField.layer.borderColor = nil
            textField.layer.borderWidth = 0

            configurationHandler?(textField)
        }
    }

    override func configureButton(style :AlertAction.Style, forButton button: UIButton) {
        super.configureButton(style, forButton: button)

        if let font = button.titleLabel?.font {
            switch style {
            case .OK:
                button.titleLabel?.font = UIFont.boldSystemFontOfSize(20)
                button.setTitleColor(UIColor.grayColor(), forState: .Normal)
            case .Cancel:
                button.backgroundColor = UIColor.darkGrayColor()
                button.setTitleColor(UIColor.whiteColor(), forState: .Normal)
            case .Default:
                button.setTitleColor(UIColor.lightGrayColor(), forState: .Normal)
            default:
                break
            }
        }
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        configContentView = { [weak self] view in
            if let view = view as? AlertContentView {
                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
            }
        }
    }
}

Class

Action

Style

• Default
• OK
• Cancel
• Destructive

Initialize

init(title: String, style: AlertAction.Style, handler: ((AlertAction!) -> Void)?)

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

Variable

var enabled: Bool

• Set button enabled.

var button: UIButton!

• Can get a button.
• Can get after button has been added to the Controller.

ContentView

backgroundColor of ContentView 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
• Controller.Style is in the case of ActionSheet does not appear.

Controller

Style

• Alert
• ActionSheet

Initialize

init(title:String?, message:String?, style: AlertController.Style)

• Show default view.

init(view: UIView?, style: Controller.Style)

• Show custom view.
• Automatically set the width.

Function

func addTextFieldWithConfigurationHandler(configurationHandler: ((UITextField!) -> Void)?)

• Add Text Field, and set handler.
• Controller.Style is in the case of ActionSheet does not add.

func addAction(action: AlertAction)

• Add action button.

Handler

var configContainerWidth: (() -> CGFloat?)?

• Change view width.

var configContainerCornerRadius: (() -> CGFloat?)?

• Change view corner radius.

var configContentView: ((UIView!) -> Void)?

• Customize contents.
• By default, UIView argument is ContentView.

The difference between default UIAlertController

• Can add a cancel button any number of the ActionSheet.
• If tap the outside of the view, the action handler will not be executed of the ActionSheet.

LICENSE

Under the MIT license. See LICENSE file for details.