Swift3.0 MBProgressHUD的封装使用

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创建 UIViewController+HUD.swift

import Foundationimport MBProgressHUD// keyWindowlet KeyWindow : UIWindow = UIApplication.shared.keyWindow!private var HUDKey = "HUDKey"extension UIViewController{    var hud : MBProgressHUD?        {        get{            return objc_getAssociatedObject(self, &HUDKey) as? MBProgressHUD        }        set{            objc_setAssociatedObject(self, &HUDKey, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)        }    }    /**     显示提示信息(有菊花, 一直显示, 不消失)，默认文字“加载中”，默认偏移量0     - parameter view:    显示在哪个View上     - parameter hint:    提示信息     - parameter yOffset: y上的偏移量     */     func showHud(in view: UIView, hint: String = "加载中...", yOffset:CGFloat? = 0){        let HUD = MBProgressHUD(view: view)        HUD.label.text = hint        HUD.label.font = UIFontSize(size: 15*UIRate)        //设为false后点击屏幕其他地方有反应        HUD.isUserInteractionEnabled = true        //HUD内的内容的颜色        HUD.contentColor = UIColor(red:0.82, green:0.82, blue:0.82, alpha:1.00)        //View的颜色        HUD.bezelView.color = UIColorHex("000000", 0.7)        //style -blur 不透明 －solidColor 透明        HUD.bezelView.style = .solidColor        HUD.margin = 12*UIRate        //偏移量，以center为起点//        HUD.offset.y = yOffset ?? 0        view.addSubview(HUD)        HUD.show(animated: true)        hud = HUD    }    /**     显示纯文字提示信息(显示在keywindow上)，默认时间2s，默认偏移量0     - parameter hint: 提示信息     - parameter duration: 持续时间(不填的话, 默认两秒)     - parameter yOffset: y上的偏移量     */    func showHintInKeywindow(hint: String, duration: Double = 2.0, yOffset:CGFloat? = 0) {        let view = KeyWindow        let HUD = MBProgressHUD(view: view)        view.addSubview(HUD)        HUD.animationType = .zoomOut        HUD.isUserInteractionEnabled = false        HUD.bezelView.color = UIColor.black        HUD.contentColor = UIColor.white        HUD.mode = .text        HUD.label.text = hint        HUD.show(animated: true)        HUD.removeFromSuperViewOnHide = false        HUD.offset.y = yOffset ?? 0        HUD.margin = 12*UIRate        HUD.hide(animated: true, afterDelay: duration)        hud = HUD    }    /**     显示纯文字提示信息，默认时间1.5s，默认偏移量0     - parameter view: 显示在哪个View上     - parameter hint: 提示信息     - parameter duration: 持续时间(不填的话, 默认两秒)     - parameter yOffset: y上的偏移量     */    func showHint(in view: UIView, hint: String, duration: Double = 1.5, yOffset:CGFloat? = 0) {        let HUD = MBProgressHUD(view: view)        view.addSubview(HUD)        HUD.animationType = .zoomOut        HUD.bezelView.color = UIColor.black        HUD.contentColor = UIColor.white        HUD.mode = .text        HUD.label.text = hint        HUD.isUserInteractionEnabled = false        HUD.removeFromSuperViewOnHide = false        HUD.show(animated: true)        HUD.offset.y = yOffset ?? 0        HUD.margin = 12*UIRate        HUD.hide(animated: true, afterDelay: duration)        hud = HUD    }    /// 移除提示    func hideHud() {        //如果解包成功则移除，否则不做任何事        if let hud = hud {            hud.hide(animated: true)        }    }   ｝

首先导入MBProgressHUD，然后进行封装，在使用时，在UIViewController 中

 //添加HUD self.showHud(in: self.view, hint: "加载中...")//隐藏HUDself.hideHud()

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