BayPhillips/compatible-alert-controller

An iOS7 compatible UIAlertController written in Swift

#BPCompatibleAlertController iOS 8 included the new UIAlertController which is a much needed upgrade upon the UIAlertView; however, if you're still supporting iOS 7, like most of us are, then you still need to use UIAlertViews.

BPCompatibleAlertController does its best to emulate the UIAlertController implementation while supporting both iOS 7 and 8.

##How to Use## Code samples are provided in the demo project, but if you're familiar with the UIAlertController, then you'll find this easy:

###Intialize the BPCompatibleAlertController:###

alertController = BPCompatibleAlertController(title: "My Title", message: "My Message", alertStyle: BPCompatibleAlertControllerStyle.Alert)

###Start adding actions/buttons to your controller:###

alertController.addAction(BPCompatibleAlertAction.defaultActionWithTitle("Default", handler: { (action) in
  // Do whatever callback you want in here
}))

If you want to specify another type of button, you can simply use the other two class functions: BPCompatibleAlertAction.cancelActionWithTitle and BPCompatibleAlertAction.destructiveActionWithTitle.

###Add any UITextFields:###

alertController.addTextFieldWithConfigurationHandler({ (textField) in
    textField.placeholder = "Username"
})

To support the different types of textFields in iOS7, just set the UIAlertViewStyle on the BPCompatibleAlertController to whichever you'd like, so long as it matches the number of textFields you're adding.

UIAlertViewStyle.Default = 0 textFields
UIAlertViewStyle.PlainTextInput or SecureTextInput = 1 textField
UIAlertViewStyle.LoginAndPasswordInpnut = 2 textFields

###Present the alert controller:###

alertController.presentFrom(viewController, animated: true) { () in
  // Completion handler once alertController has been displayed
}

###Re-presenting the alert controller:### By default, each instance of the alertController cleans up its internal resources automatically after the presented alert has been dismissed by the user and cannot be re-presented.

If you do wish to re-use an instance, tell it to not to release its resources before presenting it, then manually releaseResources() when you are done.

alertController.releaseResourcesWhenAlertDismissed = false
...
alertController.presentFrom(viewController, animated: true, completion:nil)
alertController.presentFrom(viewController, animated: true, completion:nil)
...
alertController.releaseResources()
alertController = nil

##To Do##

1. Tests!
2. Probably a lot more! PR's are welcome.

##License## BPCompatibleAlertController is licensed under the MIT License. See LICENSE for details.