It's a fairly common case, when the enabled
state of button depends on some textable elements such as TextView, TextField. So this library allows the simplest way to achive this purpose with only few lines of code.
Typical login screen with short, beautiful validation code:
loginButton.isEnabled(by: usernameTextField, passwordTextField) { username, password in
username.characters.count > 5 && password.characters.count > 5
}
you can also combine together UITextView
with UITextField
's:
signUpButton.isEnabled(by: firstnameTextField, lastnameTextField, bioTextView) { firstname, lastname, bio in
return /* validation value */
}
So there is also oportunity to add not UI element:
-
Implement
Textable
protocol -
Be a successor from
NSObject
-
Not forget about
dynamic
label for property -
Done.
class Object: NSObject, Textable {
dynamic var value: String?
var textKey: String {
return "value"
}
}
One important case is that you should clear button's bag. It removes all observers from textable elements. Usually it needs to do in deinit
method.
deinit {
signUpButton.clearBag()
}
To integrate NxEnabled, simply add the following line to your Podfile
:
pod "NxEnabled"
To integrate NxEnabled into your Xcode project using Carthage, specify it in your Cartfile
:
github "Otbivnoe/NxEnabled"
Run carthage update
to build the framework and drag the built NxEnabled.framework
into your Xcode project.
Nikita Ermolenko, [email protected]
NxEnabled is available under the MIT license. See the LICENSE file for more info.