Forked from YusukeHosonuma/ValidationViewController.swift
Created
December 11, 2018 04:59
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RxSwift - Validation sample
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import UIKit | |
import RxSwift | |
import RxCocoa | |
let requiredUserNameLength = 5 | |
let requiredPasswordLength = 5 | |
let limitUserNameLength = 20 | |
class ValidationViewController: UIViewController { | |
@IBOutlet weak var userNameText: UITextField! | |
@IBOutlet weak var userNameRemainLabel: UILabel! | |
@IBOutlet weak var userNameValidationLabel: UILabel! | |
@IBOutlet weak var passwordText: UITextField! | |
@IBOutlet weak var passwordInvalidLabel: UILabel! | |
@IBOutlet weak var loginButton: UIButton! | |
let disposeBag = DisposeBag() | |
override func viewDidLoad() { | |
super.viewDidLoad() | |
let userNameValid: Observable<Bool> = userNameText.rx_text | |
.map{ text -> Bool in | |
text.characters.count >= requiredUserNameLength | |
} | |
.shareReplay(1) | |
let userNameRemainText: Observable<String> = userNameText.rx_text | |
.map { text -> String in | |
let currentLength = text.characters.count | |
return "\(currentLength)/\(limitUserNameLength)" | |
} | |
let passwordValid: Observable<Bool> = passwordText.rx_text | |
.map { text -> Bool in | |
text.characters.count >= requiredPasswordLength | |
} | |
.shareReplay(1) | |
let everythingValid: Observable<Bool> | |
= Observable.combineLatest(userNameValid, passwordValid) { $0 && $1 } | |
userNameValid | |
.bindTo(userNameValidationLabel.rx_hidden) | |
.addDisposableTo(disposeBag) | |
userNameRemainText | |
.bindTo(userNameRemainLabel.rx_text) | |
.addDisposableTo(disposeBag) | |
passwordValid | |
.bindTo(passwordInvalidLabel.rx_hidden) | |
.addDisposableTo(disposeBag) | |
everythingValid | |
.bindTo(loginButton.rx_enabled) | |
.addDisposableTo(disposeBag) | |
} | |
} |
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