Custom iOS7 AlertView

The addSubview method is not available in UIAlertView in iOS7 any more. The view hierarchy for this class is private and must not be modified.

As a solution, this class creates an iOS7-style AlertView for which you can supply your own buttons and UIView for the content. The animations and the looks are copied too and no images or other resources are needed.

Installation

It's as simple as adding the following file to your project:

CustomIOS7AlertView.swift

Support

Only iOS 7 and newer.

Quick start guide

Create a CustomIOS7AlertView instance:

let alertView = CustomIOS7AlertView()

Add some custom content to the alert view:

alertView.containerView = UIView(...)

Set a callback

Using a delegate: (see the properties for the protocol)

alertView.delegate = self

Or a closure:

alertView.onButtonTouchUpInside = {
  (alertView: CustomIOS7AlertView, buttonIndex: Int) -> Void in

  println("Closure says: Button with index \(buttonIndex) has been touched!")
}

Display the alertView:

alertView.show()

Functions

show() Shows the alertView
show(completion: ((Bool) -> Void)?) Shows the alertView then runs completion
close() Closes the alertView
close(completion: ((Bool) -> Void)?) Closes the alertView then runs completion
setButtonEnabled(enabled: Bool, buttonName: String) Enables or disables a button. Make sure you call this after show()

Properties

buttonHeight: CGFloat The height of the buttons. Default: 50
buttonsDividerHeight: CGFloat The height of the buttons divider. Default: 1
cornerRadius: CGFloat The radius of the alert view. Default: 7
useMotionEffects: Bool Whether to use motion effects or not. Default: true
motionEffectExtent: Int The extent of the motion effects. Default: 10
containerView: UIView! The custom view to show. By default this is an empty view.
buttonTitles: [String]? An array of strings. Each string will be a button. Default: ["Close"]
buttonColor: UIColor? The color of the buttons in normal state. By default this is the UIButton's default tintColor
buttonColorHighlighted: UIColor? The color of the buttons in normal state. By default this the same as buttonColor but with an alpha of 0.5
delegate: CustomIOS7AlertViewDelegate? A delegate that implements the CustomIOS7AlertViewDelegate protocol below. nil by default.

protocol CustomIOS7AlertViewDelegate: class {
  func customIOS7AlertViewButtonTouchUpInside(alertView: CustomIOS7AlertView, buttonIndex: Int)
}

onButtonTouchUpInside: ((alertView: CustomIOS7AlertView, buttonIndex: Int) -> Void)? A closure that is called when a button is touched. nil by default.

License

Please feel free to push back anything you think is useful for the project.

Lincesed under The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.