Swiftを使って書いたProgressHUD
10728 ワード
//
// ProgressHUD.swift
// BiaoGeMusic
//
// Created by ljy-335 on 14-10-21.
// Copyright (c) 2014 uni2uni. All rights reserved.
//
import Foundation
import UIKit
///
/// @brief
enum HYBProgressHUDStyle {
case BlackHUDStyle ///
case WhiteHUDStyle ///
}
///
/// @brief HUD
/// @author huangyibiao
class HYBProgressHUD: UIView {
var hud: UIToolbar?
var spinner: UIActivityIndicatorView?
var imageView: UIImageView?
var titleLabel: UILabel?
///
/// private
///
private let statusFont = UIFont.boldSystemFontOfSize(16.0)
private var statusColor: UIColor!
private var spinnerColor: UIColor!
private var bgColor: UIColor!
private var successImage: UIImage!
private var errorImage: UIImage!
///
/// @brief ，
private class func sharedInstance() ->HYBProgressHUD {
struct Instance {
static var onceToken: dispatch_once_t = 0
static var instance: HYBProgressHUD?
}
dispatch_once(&Instance.onceToken, { () -> Void in
Instance.instance = HYBProgressHUD(frame: UIScreen.mainScreen().bounds)
Instance.instance?.setStyle(HYBProgressHUDStyle.WhiteHUDStyle)
})
return Instance.instance!
}
override init(frame: CGRect) {
super.init(frame: frame)
hud = nil
spinner = nil
imageView = nil
titleLabel = nil
self.alpha = 0.0
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
///
///
///
///
class func show(status: String) {
sharedInstance().configureHUD(status, image: nil, isSpin: true, isHide: false)
}
///
class func showSuccess(status: String) {
sharedInstance().configureHUD(status, image: sharedInstance().successImage, isSpin: false, isHide: true)
}
///
class func showError(status: String) {
sharedInstance().configureHUD(status, image: sharedInstance().errorImage, isSpin: false, isHide: true)
}
///
class func dismiss() {
sharedInstance().hideHUD()
}
///
///
///
///
/// @brief HUD
private func configureHUD(status: String?, image: UIImage?, isSpin: Bool, isHide: Bool) {
configureProgressHUD()
///
if status == nil {
titleLabel!.hidden = true
} else {
titleLabel!.text = status!
titleLabel!.hidden = false
}
//
if image == nil {
imageView?.hidden = true
} else {
imageView?.hidden = false
imageView?.image = image
}
// spin
if isSpin {
spinner?.startAnimating()
} else {
spinner?.stopAnimating()
}
rotate(nil)
addjustSize()
showHUD()
if isHide {
NSThread.detachNewThreadSelector("hideWhenTimeout", toTarget: self, withObject: nil)
}
}
///
/// @brief ， ， ，
private func setStyle(style: HYBProgressHUDStyle) {
switch style {
case .BlackHUDStyle:
statusColor = UIColor.whiteColor()
spinnerColor = UIColor.whiteColor()
bgColor = UIColor(white: 0, alpha: 0.8)
successImage = UIImage(named: "ProgressHUD.bundle/success-white.png")
errorImage = UIImage(named: "ProgressHUD.bundle/error-white.png")
break
case .WhiteHUDStyle:
statusColor = UIColor.whiteColor()
spinnerColor = UIColor.whiteColor()
bgColor = UIColor(red: 192.0 / 255.0, green: 37.0 / 255.0, blue: 62.0 / 255.0, alpha: 1.0)
successImage = UIImage(named: "ProgressHUD.bundle/success-white.png")
errorImage = UIImage(named: "ProgressHUD.bundle/error-white.png")
break
default:
break
}
}
///
/// @brief window
private func getWindow() ->UIWindow {
if let delegate: UIApplicationDelegate = UIApplication.sharedApplication().delegate {
if let window = delegate.window {
return window!
}
}
return UIApplication.sharedApplication().keyWindow
}
///
/// @brief HUD
private func configureProgressHUD() {
if hud == nil {
hud = UIToolbar(frame: CGRectZero)
hud?.barTintColor = bgColor
hud?.translucent = true
hud?.layer.cornerRadius = 10
hud?.layer.masksToBounds = true
///
NSNotificationCenter.defaultCenter().addObserver(self,
selector: "rotate:",
name: UIDeviceOrientationDidChangeNotification,
object: nil)
}
if hud!.superview == nil {
getWindow().addSubview(hud!)
}
if spinner == nil {
spinner = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.WhiteLarge)
spinner!.color = spinnerColor
spinner!.hidesWhenStopped = true
}
if spinner!.superview == nil {
hud!.addSubview(spinner!)
}
if imageView == nil {
imageView = UIImageView(frame: CGRectMake(0, 0, 28, 28))
}
if imageView!.superview == nil {
hud!.addSubview(imageView!)
}
if titleLabel == nil {
titleLabel = UILabel(frame: CGRectZero)
titleLabel?.backgroundColor = UIColor.clearColor()
titleLabel?.font = statusFont
titleLabel?.textColor = statusColor
titleLabel?.baselineAdjustment = UIBaselineAdjustment.AlignCenters
titleLabel?.numberOfLines = 0
titleLabel?.textAlignment = NSTextAlignment.Center
titleLabel?.adjustsFontSizeToFitWidth = false
}
if titleLabel!.superview == nil {
hud!.addSubview(titleLabel!)
}
}
///
/// @brief
private func destroyProgressHUD() {
NSNotificationCenter.defaultCenter().removeObserver(self, name: UIDeviceOrientationDidChangeNotification, object: nil)
titleLabel?.removeFromSuperview()
titleLabel = nil
spinner?.removeFromSuperview()
spinner = nil
imageView?.removeFromSuperview()
imageView = nil
hud?.removeFromSuperview()
hud = nil
}
///
/// @brief
func rotate(sender: NSNotification?) {
var rotation: CGFloat = 0.0
switch UIApplication.sharedApplication().statusBarOrientation {
case UIInterfaceOrientation.Portrait:
rotation = 0.0
break
case .PortraitUpsideDown:
rotation = CGFloat(M_PI)
break
case .LandscapeLeft:
rotation = -CGFloat(M_PI_2)
break
case .LandscapeRight:
rotation = CGFloat(M_PI_2)
break
default:
break
}
hud?.transform = CGAffineTransformMakeRotation(rotation)
}
///
/// @brief
private func addjustSize() {
var rect = CGRectZero
var width: CGFloat = 100.0
var height: CGFloat = 100.0
///
if titleLabel!.text != nil {
var style = NSMutableParagraphStyle()
style.lineBreakMode = NSLineBreakMode.ByCharWrapping
var attributes = [NSFontAttributeName: statusFont, NSParagraphStyleAttributeName: style.copy()]
var option = NSStringDrawingOptions.UsesLineFragmentOrigin
var text: NSString = NSString(CString: titleLabel!.text!.cStringUsingEncoding(NSUTF8StringEncoding)!,
encoding: NSUTF8StringEncoding)
rect = text.boundingRectWithSize(CGSizeMake(160, 260), options: option, attributes: attributes, context: nil)
rect.origin.x = 12
rect.origin.y = 66
width = rect.size.width + 24
height = rect.size.height + 80
if width < 100 {
width = 100
rect.origin.x = 0
rect.size.width = 100
}
}
hud!.center = CGPointMake(kScreenWidth / 2, kScreenHeight / 2)
hud!.bounds = CGRectMake(0, 0, width, height)
var h = titleLabel!.text == nil ? height / 2 : 36
imageView!.center = CGPointMake(width / 2, h)
spinner!.center = CGPointMake(width / 2, h)
titleLabel!.frame = rect
}
///
/// @brief
private func showHUD() {
if self.alpha == 0.0 {
self.alpha = 1.0
hud!.alpha = 0.0
self.hud!.transform = CGAffineTransformScale(self.hud!.transform, 1.4, 1.4)
UIView.animateKeyframesWithDuration(0.15,
delay: 0.0,
options: UIViewKeyframeAnimationOptions.AllowUserInteraction,
animations: { () -> Void in
self.hud!.transform = CGAffineTransformScale(self.hud!.transform, 1.0 / 1.4, 1.0 / 1.4)
self.hud!.alpha = 1.0
}, completion: { (isFinished) -> Void in
})
}
}
///
/// @brief
private func hideHUD() {
if self.alpha == 1.0 {
UIView.animateKeyframesWithDuration(0.2,
delay: 0.0,
options: UIViewKeyframeAnimationOptions.AllowUserInteraction,
animations: { () -> Void in
self.hud!.transform = CGAffineTransformScale(self.hud!.transform, 0.35, 0.35)
self.hud!.alpha = 0.0
}, completion: { (isFinished) -> Void in
self.destroyProgressHUD()
self.alpha = 0.0
})
}
}
///
/// @brief
func hideWhenTimeout() {
autoreleasepool { () -> () in
var length = countElements(self.titleLabel!.text!)
var sleepTime: NSTimeInterval = NSTimeInterval(length) * 0.04 + 0.5
NSThread.sleepForTimeInterval(sleepTime)
self.hideHUD()
}
}
}