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https://github.com/dinhquan/SwiftAlertView

A powerful AlertView library written in Swift
https://github.com/dinhquan/SwiftAlertView

alert carthage cocoapods customize ios popup swift swift-package-manager swiftui uialertcontroller uialertview uikit

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A powerful AlertView library written in Swift

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SwiftAlertView

===========



A powerful customizable Alert View library written in Swift.



`SwiftAlertView` is the best alternative for `UIAlertController` and `SwiftUI alert`.

With `SwiftAlertView`, you can easily make your desired Alert View in some lines of code.



![](https://raw.githubusercontent.com/dinhquan/SwiftAlertView/master/SwiftAlertView/Images/demo.png)



## Highlight Features



| Features  | SwiftAlertView | UIAlertController |

| - | - | - |

| Change button color | :white_check_mark: | :white_check_mark: |

| Change button font | :white_check_mark: | :x: |

| Change title, message color/font | :white_check_mark: | :x: |

| Change title, message margin | :white_check_mark: | :x: |

| Change background color/image | :white_check_mark: | :x: |

| Change dim background color | :white_check_mark: | :x: |

| Change border radius, separator color | :white_check_mark: | :x: |

| Dark mode | :white_check_mark: | :white_check_mark: |

| Add text fields | :white_check_mark: | :white_check_mark: |

| Callback for handling text changed | :white_check_mark: | :x:  |

| Init alert with custom view/xib file | :white_check_mark: | :x:  |

| TextField Validation Label | :white_check_mark: | :x:  |

| Customize transtion type | :white_check_mark: | :x:  |

| Easy-to-use APIs | Super easy | Not so easy |



## Installation



#### CocoaPods



```ruby

pod 'SwiftAlertView', '~> 2.2.1'

```



#### Carthage



```ogdl

github "https://github.com/dinhquan/SwiftAlertView" ~> 2.2.1

```



#### Swift Package Manager



```swift

dependencies: [

    .package(url: "https://github.com/dinhquan/SwiftAlertView", .upToNextMajor(from: "2.2.1"))

]

```



#### Manually

Drag and drop the file named ```SwiftAlertView``` inside `Source` in your project and you are done.



## Usage



### Showing alert



```swift

SwiftAlertView.show(title: "Title", message: "Message", buttonTitles: "Cancel", "OK")

```



Customization



```swift

SwiftAlertView.show(title: "Title",

                    message: "Message",

                    buttonTitles: "OK", "Cancel") { alert in

    alert.backgroundColor = .yellow

    alert.cancelButtonIndex = 1

    alert.buttonTitleColor = .blue

}

```



Handle button clicked events



```swift

SwiftAlertView.show(title: "Title",

                    message: "Message",

                    buttonTitles: "Cancel", "OK") {

    $0.style = .dark

}

.onButtonClicked { _, buttonIndex in

    print("Button Clicked At Index \(buttonIndex)")

}

```



Add text fields



```swift

SwiftAlertView.show(title: "Sign in", buttonTitles: "Cancel", "Sign In") { alertView in

    alertView.addTextField { textField in

        textField.placeholder = "Username"

    }

    alertView.addTextField { textField in

        textField.placeholder = "Password"

    }

    alertView.isEnabledValidationLabel = true

    alertView.isDismissOnActionButtonClicked = false

}

.onActionButtonClicked { alertView, buttonIndex in

    let username = alert.textField(at: 0)?.text ?? ""

    if username.isEmpty {

        alertView.validationLabel.text = "Username is incorrect"

    } else {

        alertView.dismiss()

    }

}

.onTextChanged { _, text, textFieldIndex in

    if textFieldIndex == 0 {

        print("Username text changed: ", text ?? "")

    }

}

```



You can show alert with custom content view



```swift

// with xib file

SwiftAlertView.show(nibName: "CustomView", buttonTitles: "OK")



// with custom UIView

SwiftAlertView.show(contentView: customView, buttonTitles: "OK")

```



### Programmatically creating an alert



Initialize an alert



```swift

let alertView = SwiftAlertView(title: "Title", message: "Message", buttonTitles: "Cancel", "Button 1", "Button 2", "Button 3")



let alertView = SwiftAlertView(contentView: customView, buttonTitles: "OK")



let alertView = SwiftAlertView(nibName: "CustomView", buttonTitles: "OK")

```



Show or dismiss



```swift

// Show at center of screen

alertView.show()



// Show at center of a view

alertView.show(in: view)



// Programmatically dismiss the alert view

alertView.dismiss()

```



Handle button clicked event



```swift



alertView.onButtonClicked { _, buttonIndex in

    print("Button Clicked At Index \(buttonIndex)")

}

alertView.onActionButtonClicked { _, buttonIndex in

    print("Action Button Clicked At Index \(buttonIndex)")

}

```



If you don't want to use closures, make your view controller conform ```SwiftAlertViewDelegate``` and use delegate methods:



```swift

alertView.delegate = self



func alertView(_ alertView: SwiftAlertView, clickedButtonAtIndex buttonIndex: Int) {

    println("Button Clicked At Index \(buttonIndex)")

}



func didPresentAlertView(_ alertView: SwiftAlertView) {

    println("Did Present Alert View")

}



func didDismissAlertView(_ alertView: SwiftAlertView) {

    println("Did Dismiss Alert View")

}

```

### Customization



SwiftAlertView can be customized with the following properties:



```swift

public var style: Style = .auto // default is based on system color



public var titleLabel: UILabel! // access titleLabel to customize the title font, color

public var messageLabel: UILabel! // access messageLabel to customize the message font, color



public var backgroundImage: UIImage?

// public var backgroundColor: UIColor? // inherits from UIView



public var cancelButtonIndex = 0 // default is 0, set this property if you want to change the position of cancel button

public var buttonTitleColor = UIColor(red: 0, green: 0.478431, blue: 1, alpha: 1) // to change the title color of all buttons

public var buttonHeight: CGFloat = 44.0



public var separatorColor = UIColor(red: 196.0/255, green: 196.0/255, blue: 201.0/255, alpha: 1.0) // to change the separator color

public var isHideSeparator = false

public var cornerRadius: CGFloat = 12.0



public var isDismissOnActionButtonClicked = true // default is true, if you want the alert view will not be dismissed when clicking on action buttons, set this property to false

public var isHighlightOnButtonClicked = true

public var isDimBackgroundWhenShowing = true

public var isDismissOnOutsideTapped = false

public var dimAlpha: CGFloat = 0.4

public var dimBackgroundColor: UIColor? = .init(white: 0, alpha: 0.4)



public var appearTime = 0.2

public var disappearTime = 0.1



public var transitionType: TransitionType = .default



// customize the margin & spacing of title & message

public var titleSideMargin: CGFloat = 20.0

public var messageSideMargin: CGFloat = 20.0

public var titleTopMargin: CGFloat = 20.0

public var messageBottomMargin: CGFloat = 20.0

public var titleToMessageSpacing: CGFloat = 20.0



// customize text fields

public var textFieldHeight: CGFloat = 34.0

public var textFieldSideMargin: CGFloat = 15.0

public var textFieldBottomMargin: CGFloat = 15.0

public var textFieldSpacing: CGFloat = 10.0

public var isFocusTextFieldWhenShowing = true

public var isEnabledValidationLabel = false

public var validationLabel: UILabel! // access to validation label to customize font, color

public var validationLabelTopMargin: CGFloat = 8.0

public var validationLabelSideMargin: CGFloat = 15.0

```



## Contributing

Contributions for bug fixing or improvements are welcomed. Feel free to submit a pull request.

If you have any questions, feature suggestions or bug reports, please send me an email to [email protected].