本文使用swift语言使用MBProgressHUD。
开源项目MBProgressHUD可以实现多种形式的提示框。使用简单，方便。

GitHud的下载地址是：https://github.com/jdg/MBProgressHUD/

下载完成后，将MBProgressHUD.h和MBProgressHUD.m拖入已经新建好的Swift项目。因为使用的swift语言，所以拖入项目的时候会提示是否新建一个桥接objective-c与swift的文件，选择是即可。此步骤会自动新建一个文件。如图： 
 
在该文件（MBProgressHUDDemo-Bridging-Header.h）中，有这样的一句注释： 
// Use this file to import your target’s public headers that you would like to expose to Swift.

意思应该是导入头文件，使得你的swift可以使用拖进去的文件。 
因此，在该文件中写这么一句：

#import "MBProgressHUD.h"
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会发现在Build Settings–>Swift complier -Code Generation中，多了一个项，个人理解是桥接文件MBProgressHUDDemo-Bridging-Header.h的声明。如果有不同见解，欢迎指正。如图： 

尝试了几种样式的提示框。使用按键来触发。 

以下是整个Demo的代码：

//
//  ViewController.swift
//  MBProgressHUDDemo
//  MBProgressHUD GitHud地址：https://github.com/jdg/MBProgressHUD/
//  Created by mobao on 15/7/1.
//  Copyright (c) 2015年 mobao. All rights reserved.
//import UIKitclass ViewController: UIViewController {@IBAction func TextDialogBtn(sender: AnyObject) {showTextDialog()}@IBAction func ProgressDialogBtn1(sender: AnyObject) {showProgressDialog1()}@IBAction func ProgressDialogBtn2(sender: AnyObject) {showProgressDialog2()}@IBAction func CustomDialogBtn(sender: AnyObject) {showCustomDialog()}@IBAction func AllTextDialogBtn(sender: AnyObject) {showAllTextDialog()}var HUD : MBProgressHUD?override func viewDidLoad() {super.viewDidLoad()// Do any additional setup after loading the view, typically from a nib.}//文本提示框func showTextDialog(){//初始化对话框，置于当前的View当中HUD = MBProgressHUD(view: self.view)self.view.addSubview(HUD!)//如果设置此属性，则当前view置于后台HUD?.dimBackground = true//设置对话框文字HUD?.labelText = "请稍等"HUD?.showAnimated(true, whileExecutingBlock: {sleep(3)}, completionBlock: {self.HUD?.removeFromSuperview()self.HUD = nil})}//框型进度提示func showProgressDialog1(){//初始化对话框，置于当前的View当中HUD = MBProgressHUD(view: self.view)self.view.addSubview(HUD!)//如果设置此属性，则当前view置于后台HUD?.dimBackground = true//设置对话框文字HUD?.labelText = "正在加载"//设置模式为进度框形的HUD?.mode = MBProgressHUDMode.DeterminateHUD?.showAnimated(true, whileExecutingBlock: {var progress : Float = 0.0while(progress < 1.0){progress += 0.01self.HUD?.progress = progressusleep(50000)}}, completionBlock: {self.HUD?.removeFromSuperview()self.HUD = nil})}//进度条提示func showProgressDialog2(){//初始化对话框，置于当前的View当中HUD = MBProgressHUD(view: self.view)self.view.addSubview(HUD!)//如果设置此属性，则当前view置于后台HUD?.dimBackground = true//设置对话框文字HUD?.labelText = "正在加载"//设置模式为进度条HUD?.mode = MBProgressHUDMode.DeterminateHorizontalBarHUD?.showAnimated(true, whileExecutingBlock: {var progress : Float = 0.0while(progress < 1.0){progress += 0.01self.HUD?.progress = progressusleep(50000)}}, completionBlock: {self.HUD?.removeFromSuperview()self.HUD = nil})}//自定义提示func showCustomDialog(){//初始化对话框，置于当前的View当中HUD = MBProgressHUD(view: self.view)self.view.addSubview(HUD!)//如果设置此属性，则当前view置于后台HUD?.dimBackground = true//设置对话框文字HUD?.labelText = "操作成功"//设置模式为自定义HUD?.mode = MBProgressHUDMode.CustomViewHUD?.customView = UIImageView(image: UIImage(named: "37x-Checkmark-1"))HUD?.showAnimated(true, whileExecutingBlock: {sleep(2)}, completionBlock: {self.HUD?.removeFromSuperview()self.HUD = nil})}//纯文本提示func showAllTextDialog(){//初始化对话框，置于当前的View当中HUD = MBProgressHUD(view: self.view)self.view.addSubview(HUD!)//如果设置此属性，则当前view置于后台HUD?.dimBackground = true//设置模式为纯文本提示HUD?.mode = MBProgressHUDMode.Text//设置对话框文字HUD?.labelText = "操作成功"//指定距离中心点的X轴和Y轴的偏移量，如果不指定则在屏幕中间显示
//        HUD?.yOffset = 150.0
//        HUD?.xOffset = 150.0HUD?.showAnimated(true, whileExecutingBlock: {sleep(2)}, completionBlock: {self.HUD?.removeFromSuperview()self.HUD = nil})}override func didReceiveMemoryWarning() {super.didReceiveMemoryWarning()// Dispose of any resources that can be recreated.}
}
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以下是运行的效果：文本提示框：

 
进度提示框1： 
 
进度提示框2： 
 
自定义提示框： 
 
纯文本提示框：