swift 警告框 - 自定义按钮颜色，图片

 

 

 

1.封装 弹框
http://www.hangge.com/blog/cache/detail_651.html

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

import UIKit    extension UIAlertController {     //在指定视图控制器上弹出普通消息提示框     static func showAlert(message: String, in viewController: UIViewController) {         let alert = UIAlertController(title: nil, message: message, preferredStyle: .alert)         alert.addAction(UIAlertAction(title: "确定", style: .cancel))         viewController.present(alert, animated: true)     }            //在根视图控制器上弹出普通消息提示框     static func showAlert(message: String) {         if let vc = UIApplication.shared.keyWindow?.rootViewController {             showAlert(message: message, in: vc)         }     }            //在指定视图控制器上弹出确认框     static func showConfirm(message: String, in viewController: UIViewController,                             confirm: ((UIAlertAction)->Void)?) {         let alert = UIAlertController(title: nil, message: message, preferredStyle: .alert)         alert.addAction(UIAlertAction(title: "取消", style: .cancel))         alert.addAction(UIAlertAction(title: "确定", style: .default, handler: confirm))         viewController.present(alert, animated: true)     }            //在根视图控制器上弹出确认框     static func showConfirm(message: String, confirm: ((UIAlertAction)->Void)?) {         if let vc = UIApplication.shared.keyWindow?.rootViewController {             showConfirm(message: message, in: vc, confirm: confirm)         }     } }

　　

 

 

2.改变 标题颜色，按钮颜色，等等

https://blog.csdn.net/mo_xiao_mo/article/details/70308099

 

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14

let alert = UIAlertController(title: nil, message: "确定要退出登录吗？", preferredStyle: .actionSheet)   /// 确认 let sureAction = UIAlertAction(title: "确认", style: UIAlertAction.Style.default) { [weak self](_) in      self?.requestLoginOut() } sureAction.setValue(UIColor.init(hexString: "#FF9E3E"), forKey: "_titleTextColor") alert.addAction(sureAction)   //取消操作 let cancleAction = UIAlertAction(title: "取 消", style: .cancel, handler: nil) cancleAction.setValue(UIColor.init(hexString: "#424242"), forKey: "_titleTextColor") alert.addAction(cancleAction) self.present(alert, animated: true, completion: nil)