f2cf74c7
 yangbin
1.0.20(4)
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//
// UIViewController+Extension.swift
// zc
//
// Created by wyp on 2020/10/22.
// Copyright © 2020 wyp. All rights reserved.
//
import UIKit
public extension UIViewController {
func showAlert(title: String, message: String, confirm: ((UIAlertAction) -> Void)? = nil) {
showAlert(title: title, message: message, confirm: confirm, cancel: nil)
}
func showAlert(title: String, message: String, confirmText: String = "确定", cancelText: String? = "取消", confirm: ((UIAlertAction) -> Void)? = nil, cancel: ((UIAlertAction) -> Void)? = nil) {
var conText = confirmText
var canText = cancelText
if confirmText == "确定" {
conText = LocString("确定")
}
if cancelText == "取消" {
canText = LocString("取消")
}
let alertVC = UIAlertController(title: title, message: message, preferredStyle: .alert)
if canText != nil {
let cancelAction = UIAlertAction(title: canText, style: .default, handler: cancel)
cancelAction.setValue(UIColor.rgbColorFromHex(0x808080), forKey: "titleTextColor")
alertVC.addAction(cancelAction)
}
let confirmAction = UIAlertAction(title: conText, style: .destructive, handler: confirm)
confirmAction.setValue(UIColor.rgbColorFromHex(0x00993E), forKey: "titleTextColor")
alertVC.addAction(confirmAction)
present(alertVC, animated: true, completion: nil)
}
class func getCurrentViewController() -> UIViewController?{
// 获取当先显示的window
var currentWindow = UIApplication.shared.keyWindow ?? UIWindow()
if currentWindow.windowLevel != UIWindow.Level.normal {
let windowArr = UIApplication.shared.windows
for window in windowArr {
if window.windowLevel == UIWindow.Level.normal {
currentWindow = window
break
}
}
}
return UIViewController.getNextXController(nextController: currentWindow.rootViewController)
}
private class func getNextXController(nextController: UIViewController?) -> UIViewController? {
if nextController == nil {
return nil
} else if nextController?.presentedViewController != nil {
return UIViewController.getNextXController(nextController: nextController?.presentedViewController)
} else if let tabbar = nextController as? UITabBarController {
return UIViewController.getNextXController(nextController: tabbar.selectedViewController)
} else if let nav = nextController as? UINavigationController {
return UIViewController.getNextXController(nextController: nav.visibleViewController)
}
return nextController
}
}
extension NSLayoutConstraint {
func setMultiplier(multiplier:CGFloat) -> NSLayoutConstraint {
NSLayoutConstraint.deactivate([self])
let newConstraint = NSLayoutConstraint(
item: firstItem,
attribute: firstAttribute,
relatedBy: relation,
toItem: secondItem,
attribute: secondAttribute,
multiplier: multiplier,
constant: constant)
newConstraint.priority = priority
newConstraint.shouldBeArchived = shouldBeArchived
newConstraint.identifier = identifier
NSLayoutConstraint.activate([newConstraint])
return newConstraint
}
}
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