MBProgressHUD&-&提示信息
最近 在维护以前同事写的项目的时候发现一个很好用的 提示信息 类，MBProgressHUD， 于是在网上找了些资料，整理一下，现在把
主要的6种提示方式记录下来，
1、创建一个空的工程，截图如下：
&&&&&&&&&&&&&
<img ALT="" HEIGHT="339" WIDTH="507"
TITLE="MBProgressHUD&-&提示信息" />
2、导入MBProgressHUD.h 和 MBProgressHUD.m文件 （这两个文件可以去
）下载，我们要用的到 只是其中的 .h 和 .m 文件；
3、在ViewController.h中导入头文件，并且声明相应的 点击事件，截图如下：
&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="245" WIDTH="463"
TITLE="MBProgressHUD&-&提示信息" />
4、在ViewController.m文件中分别实现以上方法截图如下：
&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="336" WIDTH="463"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="289" WIDTH="463"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&
&& <img ALT="" HEIGHT="159" WIDTH="464"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="298" WIDTH="464"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="353" WIDTH="464"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="280" WIDTH="464"
TITLE="MBProgressHUD&-&提示信息" />
在第三个方法和最后一个方法中要加入自己想要的图片，否则 只会显示默认的<img ALT=""
TITLE="MBProgressHUD&-&提示信息" />这种；
5、在xib文件中拖入相应的6个button 并且连线每个点击事件，xib文件中 File's Owner连线如下：
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
<img ALT=""
TITLE="MBProgressHUD&-&提示信息" />
6、如果创建工程的时候 选择的 ARC机制的话，编译的时候会报错，这时候 只需要在 project的 Build
Phases中找到MBProgress HUD这个类 点击空白处回车，输入 -fno-objc-arc
然后敲回车确定即可解决问题，如下图：<img ALT="" HEIGHT="265" WIDTH="833"
TITLE="MBProgressHUD&-&提示信息" />
如果没有用ARC机制的话 不会有问题；
7、编译运行程序：截图如下：
&&& <img ALT="" HEIGHT="375" WIDTH="263"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="355" WIDTH="269"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="351" WIDTH="275"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="355" WIDTH="275"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="368" WIDTH="277"
TITLE="MBProgressHUD&-&提示信息" />
&&&&&&&&&&&&&&&&&&&&&&&&
<img ALT="" HEIGHT="361" WIDTH="289"
TITLE="MBProgressHUD&-&提示信息" />
我个人认为 第五种 用的比较多，，O啦 ！
已投稿到：
以上网友发言只代表其个人观点，不代表新浪网的观点或立场。对MBProgressHUD进行二次封装并精简使用
对MBProgressHUD进行二次封装并精简使用
/jdg/MBProgressHUD
几个效果图：
以下源码是MBProgressHUD支持最新的iOS8的版本，没有任何的警告信息
MBProgressHUD.
对MBProgressHUD进行二次封装并精简使用
/jdg/MBProgressHUD
几个效果图：
以下源码是MBProgressHUD支持最新的iOS8的版本，没有任何的警告信息
MBProgressHUD.h 与 MBProgressHUD.m
MBProgressHUD.h
Version 0.9
Created by Matej Bukovinski on 2.4.09.
// This code is distributed under the terms and conditions of the MIT license.
// Copyright (c) 2013 Matej Bukovinski
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#import &Foundation/Foundation.h&
#import &UIKit/UIKit.h&
#import &CoreGraphics/CoreGraphics.h&
@protocol MBProgressHUDD
typedef enum {
/** Progress is shown using an UIActivityIndicatorView. This is the default. */
MBProgressHUDModeIndeterminate,
/** Progress is shown using a round, pie-chart like, progress view. */
MBProgressHUDModeDeterminate,
/** Progress is shown using a horizontal progress bar */
MBProgressHUDModeDeterminateHorizontalBar,
/** Progress is shown using a ring-shaped progress view. */
MBProgressHUDModeAnnularDeterminate,
/** Shows a custom view */
MBProgressHUDModeCustomView,
/** Shows only labels */
MBProgressHUDModeText
} MBProgressHUDM
typedef enum {
/** Opacity animation */
MBProgressHUDAnimationFade,
/** Opacity + scale animation */
MBProgressHUDAnimationZoom,
MBProgressHUDAnimationZoomOut = MBProgressHUDAnimationZoom,
MBProgressHUDAnimationZoomIn
} MBProgressHUDA
#ifndef MB_INSTANCETYPE
#if __has_feature(objc_instancetype)
#define MB_INSTANCETYPE instancetype
#define MB_INSTANCETYPE id
#ifndef MB_STRONG
#if __has_feature(objc_arc)
#define MB_STRONG strong
#define MB_STRONG retain
#ifndef MB_WEAK
#if __has_feature(objc_arc_weak)
#define MB_WEAK weak
#elif __has_feature(objc_arc)
#define MB_WEAK unsafe_unretained
#define MB_WEAK assign
#if NS_BLOCKS_AVAILABLE
typedef void (^MBProgressHUDCompletionBlock)();
* Displays a simple HUD window containing a progress indicator and two optional labels for short messages.
* This is a simple drop-in class for displaying a progress HUD view similar to Apple's private UIProgressHUD class.
* The MBProgressHUD window spans over the entire space given to it by the initWithFrame constructor and catches all
* user input on this region, thereby preventing the user operations on components below the view. The HUD itself is
* drawn centered as a rounded semi-transparent view which resizes depending on the user specified content.
* This view supports four modes of operation:
* - MBProgressHUDModeIndeterminate - shows a UIActivityIndicatorView
* - MBProgressHUDModeDeterminate - shows a custom round progress indicator
* - MBProgressHUDModeAnnularDeterminate - shows a custom annular progress indicator
* - MBProgressHUDModeCustomView - shows an arbitrary, user specified view (@see customView)
* All three modes can have optional labels assigned:
* - If the labelText property is set and non-empty then a label containing the provided content is placed below the
indicator view.
* - If also the detailsLabelText property is set then another label is placed below the first label.
@interface MBProgressHUD : UIView
* Creates a new HUD, adds it to provided view and shows it. The counterpart to this method is hideHUDForView:animated:.
* @param view The view that the HUD will be added to
* @param animated If set to YES the HUD will appear using the current animationType. If set to NO the HUD will not use
* animations while appearing.
* @return A reference to the created HUD.
* @see hideHUDForView:animated:
* @see animationType
+ (MB_INSTANCETYPE)showHUDAddedTo:(UIView *)view animated:(BOOL)
* Finds the top-most HUD subview and hides it. The counterpart to this method is showHUDAddedTo:animated:.
* @param view The view that is going to be searched for a HUD subview.
* @param animated If set to YES the HUD will disappear using the current animationType. If set to NO the HUD will not use
* animations while disappearing.
* @return YES if a HUD was found and removed, NO otherwise.
* @see showHUDAddedTo:animated:
* @see animationType
+ (BOOL)hideHUDForView:(UIView *)view animated:(BOOL)
* Finds all the HUD subviews and hides them.
* @param view The view that is going to be searched for HUD subviews.
* @param animated If set to YES the HUDs will disappear using the current animationType. If set to NO the HUDs will not use
* animations while disappearing.
* @return the number of HUDs found and removed.
* @see hideHUDForView:animated:
* @see animationType
+ (NSUInteger)hideAllHUDsForView:(UIView *)view animated:(BOOL)
* Finds the top-most HUD subview and returns it.
* @param view The view that is going to be searched.
* @return A reference to the last HUD subview discovered.
+ (MB_INSTANCETYPE)HUDForView:(UIView *)
* Finds all HUD subviews and returns them.
* @param view The view that is going to be searched.
* @return All found HUD views (array of MBProgressHUD objects).
+ (NSArray *)allHUDsForView:(UIView *)
* A convenience constructor that initializes the HUD with the window's bounds. Calls the designated constructor with
* window.bounds as the parameter.
* @param window The window instance that will provide the bounds for the HUD. Should be the same instance as
* the HUD's superview (i.e., the window that the HUD will be added to).
- (id)initWithWindow:(UIWindow *)
* A convenience constructor that initializes the HUD with the view's bounds. Calls the designated constructor with
* view.bounds as the parameter
* @param view The view instance that will provide the bounds for the HUD. Should be the same instance as
* the HUD's superview (i.e., the view that the HUD will be added to).
- (id)initWithView:(UIView *)
* Display the HUD. You need to make sure that the main thread completes its run loop soon after this method call so
* the user interface can be updated. Call this method when your task is already set-up to be executed in a new thread
* (e.g., when using something like NSOperation or calling an asynchronous call like NSURLRequest).
* @param animated If set to YES the HUD will appear using the current animationType. If set to NO the HUD will not use
* animations while appearing.
* @see animationType
- (void)show:(BOOL)
* Hide the HUD. This still calls the hudWasHidden: delegate. This is the counterpart of the show: method. Use it to
* hide the HUD when your task completes.
* @param animated If set to YES the HUD will disappear using the current animationType. If set to NO the HUD will not use
* animations while disappearing.
* @see animationType
- (void)hide:(BOOL)
* Hide the HUD after a delay. This still calls the hudWasHidden: delegate. This is the counterpart of the show: method. Use it to
* hide the HUD when your task completes.
* @param animated If set to YES the HUD will disappear using the current animationType. If set to NO the HUD will not use
* animations while disappearing.
* @param delay Delay in seconds until the HUD is hidden.
* @see animationType
- (void)hide:(BOOL)animated afterDelay:(NSTimeInterval)
* Shows the HUD while a background task is executing in a new thread, then hides the HUD.
* This method also takes care of autorelease pools so your method does not have to be concerned with setting up a
* @param method The method to be executed while the HUD is shown. This method will be executed in a new thread.
* @param target The object that the target method belongs to.
* @param object An optional object to be passed to the method.
* @param animated If set to YES the HUD will (dis)appear using the current animationType. If set to NO the HUD will not use
* animations while (dis)appearing.
- (void)showWhileExecuting:(SEL)method onTarget:(id)target withObject:(id)object animated:(BOOL)
#if NS_BLOCKS_AVAILABLE
* Shows the HUD while a block is executing on a background queue, then hides the HUD.
* @see showAnimated:whileExecutingBlock:onQueue:completionBlock:
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)
* Shows the HUD while a block is executing on a background queue, then hides the HUD.
* @see showAnimated:whileExecutingBlock:onQueue:completionBlock:
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)block completionBlock:(MBProgressHUDCompletionBlock)
* Shows the HUD while a block is executing on the specified dispatch queue, then hides the HUD.
* @see showAnimated:whileExecutingBlock:onQueue:completionBlock:
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)block onQueue:(dispatch_queue_t)
* Shows the HUD while a block is executing on the specified dispatch queue, executes completion block on the main queue, and then hides the HUD.
* @param animated If set to YES the HUD will (dis)appear using the current animationType. If set to NO the HUD will
* not use animations while (dis)appearing.
* @param block The block to be executed while the HUD is shown.
* @param queue The dispatch queue on which the block should be executed.
* @param completion The block to be executed on completion.
* @see completionBlock
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)block onQueue:(dispatch_queue_t)queue
completionBlock:(MBProgressHUDCompletionBlock)
* A block that gets called after the HUD was completely hidden.
@property (copy) MBProgressHUDCompletionBlock completionB
* MBProgressHUD operation mode. The default is MBProgressHUDModeIndeterminate.
* @see MBProgressHUDMode
@property (assign) MBProgressHUDM
* The animation type that should be used when the HUD is shown and hidden.
* @see MBProgressHUDAnimation
@property (assign) MBProgressHUDAnimation animationT
* The UIView (e.g., a UIImageView) to be shown when the HUD is in MBProgressHUDModeCustomView.
* For best results use a 37 by 37 pixel view (so the bounds match the built in indicator bounds).
@property (MB_STRONG) UIView *customV
* The HUD delegate object.
* @see MBProgressHUDDelegate
@property (MB_WEAK) id&MBProgressHUDDelegate&
* An optional short message to be displayed below the activity indicator. The HUD is automatically resized to fit
* the entire text. If the text is too long it will get clipped by displaying "..." at the end. If left unchanged or
* set to @"", then no message is displayed.
@property (copy) NSString *labelT
* An optional details message displayed below the labelText message. This message is displayed only if the labelText
* property is also set and is different from an empty string (@""). The details text can span multiple lines.
@property (copy) NSString *detailsLabelT
* The opacity of the HUD window. Defaults to 0.8 (80% opacity).
@property (assign)
* The color of the HUD window. Defaults to black. If this property is set, color is set using
* this UIColor and the opacity property is not used.
using retain because performing copy on
* UIColor base colors (like [UIColor greenColor]) cause problems with the copyZone.
@property (MB_STRONG) UIColor *
* The x-axis offset of the HUD relative to the centre of the superview.
@property (assign) float xO
* The y-axis offset of the HUD relative to the centre of the superview.
@property (assign) float yO
* The amount of space between the HUD edge and the HUD elements (labels, indicators or custom views).
* Defaults to 20.0
@property (assign)
* The corner radius for the HUD
* Defaults to 10.0
@property (assign) float cornerR
* Cover the HUD background view with a radial gradient.
@property (assign) BOOL dimB
* Grace period is the time (in seconds) that the invoked method may be run without
* showing the HUD. If the task finishes before the grace time runs out, the HUD will
* not be shown at all.
* This may be used to prevent HUD display for very short tasks.
* Defaults to 0 (no grace time).
* Grace time functionality is only supported when the task status is known!
* @see taskInProgress
@property (assign) float graceT
* The minimum time (in seconds) that the HUD is shown.
* This avoids the problem of the HUD being shown and than instantly hidden.
* Defaults to 0 (no minimum show time).
@property (assign) float minShowT
* Indicates that the executed operation is in progress. Needed for correct graceTime operation.
* If you don't set a graceTime (different than 0.0) this does nothing.
* This property is automatically set when using showWhileExecuting:onTarget:withObject:animated:.
* When threading is done outside of the HUD (i.e., when the show: and hide: methods are used directly),
* you need to set this property when your task starts and completes in order to have normal graceTime
* functionality.
@property (assign) BOOL taskInP
* Removes the HUD from its parent view when hidden.
* Defaults to NO.
@property (assign) BOOL removeFromSuperViewOnH
* Font to be used for the main label. Set this property if the default is not adequate.
@property (MB_STRONG) UIFont* labelF
* Color to be used for the main label. Set this property if the default is not adequate.
@property (MB_STRONG) UIColor* labelC
* Font to be used for the details label. Set this property if the default is not adequate.
@property (MB_STRONG) UIFont* detailsLabelF
* Color to be used for the details label. Set this property if the default is not adequate.
@property (MB_STRONG) UIColor* detailsLabelC
* The color of the activity indicator. Defaults to [UIColor whiteColor]
* Does nothing on pre iOS 5.
@property (MB_STRONG) UIColor *activityIndicatorC
* The progress of the progress indicator, from 0.0 to 1.0. Defaults to 0.0.
@property (assign)
* The minimum size of the HUD bezel. Defaults to CGSizeZero (no minimum size).
@property (assign) CGSize minS
* The actual size of the HUD bezel.
* You can use this to limit touch handling on the bezel aria only.
* @see /jdg/MBProgressHUD/pull/200
@property (atomic, assign, readonly) CGS
* Force the HUD dimensions to be equal if possible.
@property (assign, getter = isSquare) BOOL
@protocol MBProgressHUDDelegate &NSObject&
* Called after the HUD was fully hidden from the screen.
- (void)hudWasHidden:(MBProgressHUD *)
* A progress view for showing definite progress by filling up a circle (pie chart).
@interface MBRoundProgressView : UIView
* Progress (0.0 to 1.0)
@property (nonatomic, assign)
* Indicator progress color.
* Defaults to white [UIColor whiteColor]
@property (nonatomic, MB_STRONG) UIColor *progressTintC
* Indicator background (non-progress) color.
* Defaults to translucent white (alpha 0.1)
@property (nonatomic, MB_STRONG) UIColor *backgroundTintC
* Display mode - NO = round or YES = annular. Defaults to round.
@property (nonatomic, assign, getter = isAnnular) BOOL
* A flat bar progress view.
@interface MBBarProgressView : UIView
* Progress (0.0 to 1.0)
@property (nonatomic, assign)
* Bar border line color.
* Defaults to white [UIColor whiteColor].
@property (nonatomic, MB_STRONG) UIColor *lineC
* Bar background color.
* Defaults to clear [UIColor clearColor];
@property (nonatomic, MB_STRONG) UIColor *progressRemainingC
* Bar progress color.
* Defaults to white [UIColor whiteColor].
@property (nonatomic, MB_STRONG) UIColor *progressC
MBProgressHUD.h
// MBProgressHUD.m
// Version 0.9
// Created by Matej Bukovinski on 2.4.09.
#import "MBProgressHUD.h"
#import &tgmath.h&
#if __has_feature(objc_arc)
#define MB_AUTORELEASE(exp) exp
#define MB_RELEASE(exp) exp
#define MB_RETAIN(exp) exp
#define MB_AUTORELEASE(exp) [exp autorelease]
#define MB_RELEASE(exp) [exp release]
#define MB_RETAIN(exp) [exp retain]
#if __IPHONE_OS_VERSION_MIN_REQUIRED &= 60000
#define MBLabelAlignmentCenter NSTextAlignmentCenter
#define MBLabelAlignmentCenter UITextAlignmentCenter
#if __IPHONE_OS_VERSION_MIN_REQUIRED &= 70000
#define MB_TEXTSIZE(text, font) [text length] & 0 ? [text \
sizeWithAttributes:@{NSFontAttributeName:font}] : CGSizeZ
#define MB_TEXTSIZE(text, font) [text length] & 0 ? [text sizeWithFont:font] : CGSizeZ
#if __IPHONE_OS_VERSION_MIN_REQUIRED &= 70000
#define MB_MULTILINE_TEXTSIZE(text, font, maxSize, mode) [text length] & 0 ? [text \
boundingRectWithSize:maxSize options:(NSStringDrawingUsesLineFragmentOrigin) \
attributes:@{NSFontAttributeName:font} context:nil].size : CGSizeZ
#define MB_MULTILINE_TEXTSIZE(text, font, maxSize, mode) [text length] & 0 ? [text \
sizeWithFont:font constrainedToSize:maxSize lineBreakMode:mode] : CGSizeZ
#ifndef kCFCoreFoundationVersionNumber_iOS_7_0
#define kCFCoreFoundationVersionNumber_iOS_7_0 847.20
#ifndef kCFCoreFoundationVersionNumber_iOS_8_0
#define kCFCoreFoundationVersionNumber_iOS_8_0 1129.15
static const CGFloat kPadding = 4.f;
static const CGFloat kLabelFontSize = 16.f;
static const CGFloat kDetailsLabelFontSize = 12.f;
@interface MBProgressHUD () {
SEL methodForE
id targetForE
id objectForE
UILabel *detailsL
CGAffineTransform rotationT
@property (atomic, MB_STRONG) UIView *
@property (atomic, MB_STRONG) NSTimer *graceT
@property (atomic, MB_STRONG) NSTimer *minShowT
@property (atomic, MB_STRONG) NSDate *showS
@implementation MBProgressHUD
#pragma mark - Properties
@synthesize animationT
@synthesize labelF
@synthesize labelC
@synthesize detailsLabelF
@synthesize detailsLabelC
@synthesize xO
@synthesize yO
@synthesize minS
@synthesize dimB
@synthesize graceT
@synthesize minShowT
@synthesize graceT
@synthesize minShowT
@synthesize taskInP
@synthesize removeFromSuperViewOnH
@synthesize customV
@synthesize showS
@synthesize labelT
@synthesize detailsLabelT
@synthesize activityIndicatorC
#if NS_BLOCKS_AVAILABLE
@synthesize completionB
#pragma mark - Class methods
+ (MB_INSTANCETYPE)showHUDAddedTo:(UIView *)view animated:(BOOL)animated {
MBProgressHUD *hud = [[self alloc] initWithView:view];
hud.removeFromSuperViewOnHide = YES;
[view addSubview:hud];
[hud show:animated];
return MB_AUTORELEASE(hud);
+ (BOOL)hideHUDForView:(UIView *)view animated:(BOOL)animated {
MBProgressHUD *hud = [self HUDForView:view];
if (hud != nil) {
hud.removeFromSuperViewOnHide = YES;
[hud hide:animated];
return YES;
return NO;
+ (NSUInteger)hideAllHUDsForView:(UIView *)view animated:(BOOL)animated {
NSArray *huds = [MBProgressHUD allHUDsForView:view];
for (MBProgressHUD *hud in huds) {
hud.removeFromSuperViewOnHide = YES;
[hud hide:animated];
return [huds count];
+ (MB_INSTANCETYPE)HUDForView:(UIView *)view {
NSEnumerator *subviewsEnum = [view.subviews reverseObjectEnumerator];
for (UIView *subview in subviewsEnum) {
if ([subview isKindOfClass:self]) {
return (MBProgressHUD *)
+ (NSArray *)allHUDsForView:(UIView *)view {
NSMutableArray *huds = [NSMutableArray array];
NSArray *subviews = view.
for (UIView *aView in subviews) {
if ([aView isKindOfClass:self]) {
[huds addObject:aView];
return [NSArray arrayWithArray:huds];
#pragma mark - Lifecycle
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Set default values for properties
self.animationType = MBProgressHUDAnimationF
self.mode = MBProgressHUDModeI
self.labelText =
self.detailsLabelText =
self.opacity = 0.8f;
self.color =
self.labelFont = [UIFont boldSystemFontOfSize:kLabelFontSize];
self.labelColor = [UIColor whiteColor];
self.detailsLabelFont = [UIFont boldSystemFontOfSize:kDetailsLabelFontSize];
self.detailsLabelColor = [UIColor whiteColor];
self.activityIndicatorColor = [UIColor whiteColor];
self.xOffset = 0.0f;
self.yOffset = 0.0f;
self.dimBackground = NO;
self.margin = 20.0f;
self.cornerRadius = 10.0f;
self.graceTime = 0.0f;
self.minShowTime = 0.0f;
self.removeFromSuperViewOnHide = NO;
self.minSize = CGSizeZ
self.square = NO;
self.contentMode = UIViewContentModeC
self.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin
| UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightM
// Transparent background
self.opaque = NO;
self.backgroundColor = [UIColor clearColor];
// Make it invisible for now
self.alpha = 0.0f;
taskInProgress = NO;
rotationTransform = CGAffineTransformI
[self setupLabels];
[self updateIndicators];
[self registerForKVO];
[self registerForNotifications];
- (id)initWithView:(UIView *)view {
NSAssert(view, @"View must not be nil.");
return [self initWithFrame:view.bounds];
- (id)initWithWindow:(UIWindow *)window {
return [self initWithView:window];
- (void)dealloc {
[self unregisterFromNotifications];
[self unregisterFromKVO];
#if !__has_feature(objc_arc)
[color release];
[indicator release];
[label release];
[detailsLabel release];
[labelText release];
[detailsLabelText release];
[graceTimer release];
[minShowTimer release];
[showStarted release];
[customView release];
[labelFont release];
[labelColor release];
[detailsLabelFont release];
[detailsLabelColor release];
#if NS_BLOCKS_AVAILABLE
[completionBlock release];
[super dealloc];
#pragma mark - Show & hide
- (void)show:(BOOL)animated {
useAnimation =
// If the grace time is set postpone the HUD display
if (self.graceTime & 0.0) {
self.graceTimer = [NSTimer scheduledTimerWithTimeInterval:self.graceTime target:self
selector:@selector(handleGraceTimer:) userInfo:nil repeats:NO];
// ... otherwise show the HUD imediately
[self setNeedsDisplay];
[self showUsingAnimation:useAnimation];
- (void)hide:(BOOL)animated {
useAnimation =
// If the minShow time is set, calculate how long the hud was shown,
// and pospone the hiding operation if necessary
if (self.minShowTime & 0.0 && showStarted) {
NSTimeInterval interv = [[NSDate date] timeIntervalSinceDate:showStarted];
if (interv & self.minShowTime) {
self.minShowTimer = [NSTimer scheduledTimerWithTimeInterval:(self.minShowTime - interv) target:self
selector:@selector(handleMinShowTimer:) userInfo:nil repeats:NO];
// ... otherwise hide the HUD immediately
[self hideUsingAnimation:useAnimation];
- (void)hide:(BOOL)animated afterDelay:(NSTimeInterval)delay {
[self performSelector:@selector(hideDelayed:) withObject:[NSNumber numberWithBool:animated] afterDelay:delay];
- (void)hideDelayed:(NSNumber *)animated {
[self hide:[animated boolValue]];
#pragma mark - Timer callbacks
- (void)handleGraceTimer:(NSTimer *)theTimer {
// Show the HUD only if the task is still running
if (taskInProgress) {
[self setNeedsDisplay];
[self showUsingAnimation:useAnimation];
- (void)handleMinShowTimer:(NSTimer *)theTimer {
[self hideUsingAnimation:useAnimation];
#pragma mark - View Hierrarchy
- (BOOL)shouldPerformOrientationTransform {
BOOL isPreiOS8 = NSFoundationVersionNumber & kCFCoreFoundationVersionNumber_iOS_8_0;
// prior to iOS8 code needs to take care of rotation if it is being added to the window
return isPreiOS8 && [self.superview isKindOfClass:[UIWindow class]];
- (void)didMoveToSuperview {
if ([self shouldPerformOrientationTransform]) {
[self setTransformForCurrentOrientation:NO];
#pragma mark - Internal show & hide operations
- (void)showUsingAnimation:(BOOL)animated {
if (animated && animationType == MBProgressHUDAnimationZoomIn) {
self.transform = CGAffineTransformConcat(rotationTransform, CGAffineTransformMakeScale(0.5f, 0.5f));
} else if (animated && animationType == MBProgressHUDAnimationZoomOut) {
self.transform = CGAffineTransformConcat(rotationTransform, CGAffineTransformMakeScale(1.5f, 1.5f));
self.showStarted = [NSDate date];
// Fade in
if (animated) {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.30];
self.alpha = 1.0f;
if (animationType == MBProgressHUDAnimationZoomIn || animationType == MBProgressHUDAnimationZoomOut) {
self.transform = rotationT
[UIView commitAnimations];
self.alpha = 1.0f;
- (void)hideUsingAnimation:(BOOL)animated {
// Fade out
if (animated && showStarted) {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.30];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(animationFinished:finished:context:)];
// 0.02 prevents the hud from passing through touches during the animation the hud will get completely hidden
// in the done method
if (animationType == MBProgressHUDAnimationZoomIn) {
self.transform = CGAffineTransformConcat(rotationTransform, CGAffineTransformMakeScale(1.5f, 1.5f));
} else if (animationType == MBProgressHUDAnimationZoomOut) {
self.transform = CGAffineTransformConcat(rotationTransform, CGAffineTransformMakeScale(0.5f, 0.5f));
self.alpha = 0.02f;
[UIView commitAnimations];
self.alpha = 0.0f;
[self done];
self.showStarted =
- (void)animationFinished:(NSString *)animationID finished:(BOOL)finished context:(void*)context {
[self done];
- (void)done {
[NSObject cancelPreviousPerformRequestsWithTarget:self];
isFinished = YES;
self.alpha = 0.0f;
if (removeFromSuperViewOnHide) {
[self removeFromSuperview];
#if NS_BLOCKS_AVAILABLE
if (pletionBlock) {
pletionBlock();
pletionBlock = NULL;
if ([delegate respondsToSelector:@selector(hudWasHidden:)]) {
[delegate performSelector:@selector(hudWasHidden:) withObject:self];
#pragma mark - Threading
- (void)showWhileExecuting:(SEL)method onTarget:(id)target withObject:(id)object animated:(BOOL)animated {
methodForExecution =
targetForExecution = MB_RETAIN(target);
objectForExecution = MB_RETAIN(object);
// Launch execution in new thread
self.taskInProgress = YES;
[NSThread detachNewThreadSelector:@selector(launchExecution) toTarget:self withObject:nil];
// Show HUD view
[self show:animated];
#if NS_BLOCKS_AVAILABLE
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)block {
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
[self showAnimated:animated whileExecutingBlock:block onQueue:queue completionBlock:NULL];
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)block completionBlock:(void (^)())completion {
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
[self showAnimated:animated whileExecutingBlock:block onQueue:queue completionBlock:completion];
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)block onQueue:(dispatch_queue_t)queue {
[self showAnimated:animated whileExecutingBlock:block onQueue:queue
completionBlock:NULL];
- (void)showAnimated:(BOOL)animated whileExecutingBlock:(dispatch_block_t)block onQueue:(dispatch_queue_t)queue
completionBlock:(MBProgressHUDCompletionBlock)completion {
self.taskInProgress = YES;
pletionBlock =
dispatch_async(queue, ^(void) {
dispatch_async(dispatch_get_main_queue(), ^(void) {
[self cleanUp];
[self show:animated];
- (void)launchExecution {
@autoreleasepool {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
// Start executing the requested task
[targetForExecution performSelector:methodForExecution withObject:objectForExecution];
#pragma clang diagnostic pop
// Task completed, update view in main thread (note: view operations should
// be done only in the main thread)
[self performSelectorOnMainThread:@selector(cleanUp) withObject:nil waitUntilDone:NO];
- (void)cleanUp {
taskInProgress = NO;
#if !__has_feature(objc_arc)
[targetForExecution release];
[objectForExecution release];
targetForExecution =
objectForExecution =
[self hide:useAnimation];
#pragma mark - UI
- (void)setupLabels {
label = [[UILabel alloc] initWithFrame:self.bounds];
label.adjustsFontSizeToFitWidth = NO;
label.textAlignment = MBLabelAlignmentC
label.opaque = NO;
label.backgroundColor = [UIColor clearColor];
label.textColor = self.labelC
label.font = self.labelF
label.text = self.labelT
[self addSubview:label];
detailsLabel = [[UILabel alloc] initWithFrame:self.bounds];
detailsLabel.font = self.detailsLabelF
detailsLabel.adjustsFontSizeToFitWidth = NO;
detailsLabel.textAlignment = MBLabelAlignmentC
detailsLabel.opaque = NO;
detailsLabel.backgroundColor = [UIColor clearColor];
detailsLabel.textColor = self.detailsLabelC
detailsLabel.numberOfLines = 0;
detailsLabel.font = self.detailsLabelF
detailsLabel.text = self.detailsLabelT
[self addSubview:detailsLabel];
- (void)updateIndicators {
BOOL isActivityIndicator = [indicator isKindOfClass:[UIActivityIndicatorView class]];
BOOL isRoundIndicator = [indicator isKindOfClass:[MBRoundProgressView class]];
if (mode == MBProgressHUDModeIndeterminate) {
if (!isActivityIndicator) {
// Update to indeterminate indicator
[indicator removeFromSuperview];
self.indicator = MB_AUTORELEASE([[UIActivityIndicatorView alloc]
initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]);
[(UIActivityIndicatorView *)indicator startAnimating];
[self addSubview:indicator];
#if __IPHONE_OS_VERSION_MIN_REQUIRED &= 50000
[(UIActivityIndicatorView *)indicator setColor:self.activityIndicatorColor];
else if (mode == MBProgressHUDModeDeterminateHorizontalBar) {
// Update to bar determinate indicator
[indicator removeFromSuperview];
self.indicator = MB_AUTORELEASE([[MBBarProgressView alloc] init]);
[self addSubview:indicator];
else if (mode == MBProgressHUDModeDeterminate || mode == MBProgressHUDModeAnnularDeterminate) {
if (!isRoundIndicator) {
// Update to determinante indicator
[indicator removeFromSuperview];
self.indicator = MB_AUTORELEASE([[MBRoundProgressView alloc] init]);
[self addSubview:indicator];
if (mode == MBProgressHUDModeAnnularDeterminate) {
[(MBRoundProgressView *)indicator setAnnular:YES];
else if (mode == MBProgressHUDModeCustomView && customView != indicator) {
// Update custom view indicator
[indicator removeFromSuperview];
self.indicator = customV
[self addSubview:indicator];
} else if (mode == MBProgressHUDModeText) {
[indicator removeFromSuperview];
self.indicator =
#pragma mark - Layout
- (void)layoutSubviews {
[super layoutSubviews];
// Entirely cover the parent view
UIView *parent = self.
if (parent) {
self.frame = parent.
CGRect bounds = self.
// Determine the total width and height needed
CGFloat maxWidth = CGRectGetWidth(bounds) - 4 *
CGSize totalSize = CGSizeZ
CGRect indicatorF = indicator.
indicatorF.size.width = MIN(CGRectGetWidth(indicatorF), maxWidth);
totalSize.width = MAX(totalSize.width, CGRectGetWidth(indicatorF));
totalSize.height += CGRectGetHeight(indicatorF);
CGSize labelSize = MB_TEXTSIZE(label.text, label.font);
labelSize.width = MIN(labelSize.width, maxWidth);
totalSize.width = MAX(totalSize.width, labelSize.width);
totalSize.height += labelSize.
if (labelSize.height & 0.f && CGRectGetHeight(indicatorF) & 0.f) {
totalSize.height += kP
CGFloat remainingHeight = CGRectGetHeight(bounds) - totalSize.height - kPadding - 4 *
CGSize maxSize = CGSizeMake(maxWidth, remainingHeight);
CGSize detailsLabelSize = MB_MULTILINE_TEXTSIZE(detailsLabel.text, detailsLabel.font, maxSize, detailsLabel.lineBreakMode);
totalSize.width = MAX(totalSize.width, detailsLabelSize.width);
totalSize.height += detailsLabelSize.
if (detailsLabelSize.height & 0.f && (indicatorF.size.height & 0.f || labelSize.height & 0.f)) {
totalSize.height += kP
totalSize.width += 2 *
totalSize.height += 2 *
// Position elements
CGFloat yPos = round(((CGRectGetHeight(bounds) - totalSize.height) / 2)) + margin + yO
CGFloat xPos = xO
indicatorF.origin.y = yP
indicatorF.origin.x = round((CGRectGetWidth(bounds) - CGRectGetWidth(indicatorF)) / 2) + xP
indicator.frame = indicatorF;
yPos += CGRectGetHeight(indicatorF);
if (labelSize.height & 0.f && CGRectGetHeight(indicatorF) & 0.f) {
yPos += kP
CGRect labelF;
labelF.origin.y = yP
labelF.origin.x = round((CGRectGetWidth(bounds) - labelSize.width) / 2) + xP
labelF.size = labelS
label.frame = labelF;
yPos += labelF.size.
if (detailsLabelSize.height & 0.f && (CGRectGetHeight(indicatorF) & 0.f || labelSize.height & 0.f)) {
yPos += kP
CGRect detailsLabelF;
detailsLabelF.origin.y = yP
detailsLabelF.origin.x = round((CGRectGetWidth(bounds) - detailsLabelSize.width) / 2) + xP
detailsLabelF.size = detailsLabelS
detailsLabel.frame = detailsLabelF;
// Enforce minsize and quare rules
if (square) {
CGFloat max = MAX(totalSize.width, totalSize.height);
if (max &= bounds.size.width - 2 * margin) {
totalSize.width =
if (max &= bounds.size.height - 2 * margin) {
totalSize.height =
if (totalSize.width & minSize.width) {
totalSize.width = minSize.
if (totalSize.height & minSize.height) {
totalSize.height = minSize.
size = totalS
#pragma mark BG Drawing
- (void)drawRect:(CGRect)rect {
CGContextRef context = UIGraphicsGetCurrentContext();
UIGraphicsPushContext(context);
if (self.dimBackground) {
//Gradient colours
size_t gradLocationsNum = 2;
CGFloat gradLocations[2] = {0.0f, 1.0f};
CGFloat gradColors[8] = {0.0f,0.0f,0.0f,0.0f,0.0f,0.0f,0.0f,0.75f};
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGGradientRef gradient = CGGradientCreateWithColorComponents(colorSpace, gradColors, gradLocations, gradLocationsNum);
CGColorSpaceRelease(colorSpace);
//Gradient center
CGPoint gradCenter= CGPointMake(CGRectGetWidth(self.bounds)/2, CGRectGetHeight(self.bounds)/2);
//Gradient radius
float gradRadius = MIN(CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds)) ;
//Gradient draw
CGContextDrawRadialGradient (context, gradient, gradCenter,
0, gradCenter, gradRadius,
kCGGradientDrawsAfterEndLocation);
CGGradientRelease(gradient);
// Set background rect color
if (self.color) {
CGContextSetFillColorWithColor(context, self.color.CGColor);
CGContextSetGrayFillColor(context, 0.0f, self.opacity);
// Center HUD
CGRect allRect = self.
// Draw rounded HUD backgroud rect
CGRect boxRect = CGRectMake(round((CGRectGetWidth(allRect) - size.width) / 2) + self.xOffset,
round((CGRectGetHeight(allRect) - size.height) / 2) + self.yOffset, size.width, size.height);
float radius = self.cornerR
CGContextBeginPath(context);
CGContextMoveToPoint(context, CGRectGetMinX(boxRect) + radius, CGRectGetMinY(boxRect));
CGContextAddArc(context, CGRectGetMaxX(boxRect) - radius, CGRectGetMinY(boxRect) + radius, radius, 3 * (float)M_PI / 2, 0, 0);
CGContextAddArc(context, CGRectGetMaxX(boxRect) - radius, CGRectGetMaxY(boxRect) - radius, radius, 0, (float)M_PI / 2, 0);
CGContextAddArc(context, CGRectGetMinX(boxRect) + radius, CGRectGetMaxY(boxRect) - radius, radius, (float)M_PI / 2, (float)M_PI, 0);
CGContextAddArc(context, CGRectGetMinX(boxRect) + radius, CGRectGetMinY(boxRect) + radius, radius, (float)M_PI, 3 * (float)M_PI / 2, 0);
CGContextClosePath(context);
CGContextFillPath(context);
UIGraphicsPopContext();
#pragma mark - KVO
- (void)registerForKVO {
for (NSString *keyPath in [self observableKeypaths]) {
[self addObserver:self forKeyPath:keyPath options:NSKeyValueObservingOptionNew context:NULL];
- (void)unregisterFromKVO {
for (NSString *keyPath in [self observableKeypaths]) {
[self removeObserver:self forKeyPath:keyPath];
- (NSArray *)observableKeypaths {
return [NSArray arrayWithObjects:@"mode", @"customView", @"labelText", @"labelFont", @"labelColor",
@"detailsLabelText", @"detailsLabelFont", @"detailsLabelColor", @"progress", @"activityIndicatorColor", nil];
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (![NSThread isMainThread]) {
[self performSelectorOnMainThread:@selector(updateUIForKeypath:) withObject:keyPath waitUntilDone:NO];
[self updateUIForKeypath:keyPath];
- (void)updateUIForKeypath:(NSString *)keyPath {
if ([keyPath isEqualToString:@"mode"] || [keyPath isEqualToString:@"customView"] ||
[keyPath isEqualToString:@"activityIndicatorColor"]) {
[self updateIndicators];
} else if ([keyPath isEqualToString:@"labelText"]) {
label.text = self.labelT
} else if ([keyPath isEqualToString:@"labelFont"]) {
label.font = self.labelF
} else if ([keyPath isEqualToString:@"labelColor"]) {
label.textColor = self.labelC
} else if ([keyPath isEqualToString:@"detailsLabelText"]) {
detailsLabel.text = self.detailsLabelT
} else if ([keyPath isEqualToString:@"detailsLabelFont"]) {
detailsLabel.font = self.detailsLabelF
} else if ([keyPath isEqualToString:@"detailsLabelColor"]) {
detailsLabel.textColor = self.detailsLabelC
} else if ([keyPath isEqualToString:@"progress"]) {
if ([indicator respondsToSelector:@selector(setProgress:)]) {
[(id)indicator setValue:@(progress) forKey:@"progress"];
[self setNeedsLayout];
[self setNeedsDisplay];
#pragma mark - Notifications
- (void)registerForNotifications {
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self selector:@selector(statusBarOrientationDidChange:)
name:UIApplicationDidChangeStatusBarOrientationNotification object:nil];
- (void)unregisterFromNotifications {
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc removeObserver:self name:UIApplicationDidChangeStatusBarOrientationNotification object:nil];
- (void)statusBarOrientationDidChange:(NSNotification *)notification {
UIView *superview = self.
if (!superview) {
} else if ([self shouldPerformOrientationTransform]) {
[self setTransformForCurrentOrientation:YES];
self.frame = self.superview.
[self setNeedsDisplay];
- (void)setTransformForCurrentOrientation:(BOOL)animated {
// Stay in sync with the superview
if (self.superview) {
self.bounds = self.superview.
[self setNeedsDisplay];
// Window coordinates differ below iOS8
// In iOS8 the UIScreen's bounds now interface-oriented
// more see /videos/wwdc/
CGFloat radians = 0;
if (NSFoundationVersionNumber & kCFCoreFoundationVersionNumber_iOS_8_0) {
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarO
if (UIInterfaceOrientationIsLandscape(orientation)) {
if (orientation == UIInterfaceOrientationLandscapeLeft) {
radians = -(CGFloat)M_PI_2;
radians = (CGFloat)M_PI_2;
self.bounds = CGRectMake(0, 0, CGRectGetHeight(self.bounds), CGRectGetWidth(self.bounds));
if (orientation == UIInterfaceOrientationPortraitUpsideDown) {
radians = (CGFloat)M_PI;
radians = 0;
rotationTransform = CGAffineTransformMakeRotation(radians);
if (animated) {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
[self setTransform:rotationTransform];
if (animated) {
[UIView commitAnimations];
@implementation MBRoundProgressView
#pragma mark - Lifecycle
- (id)init {
return [self initWithFrame:CGRectMake(0.f, 0.f, 37.f, 37.f)];
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
self.backgroundColor = [UIColor clearColor];
self.opaque = NO;
_progress = 0.f;
_annular = NO;
_progressTintColor = [[UIColor alloc] initWithWhite:1.f alpha:1.f];
_backgroundTintColor = [[UIColor alloc] initWithWhite:1.f alpha:.1f];
[self registerForKVO];
- (void)dealloc {
[self unregisterFromKVO];
#if !__has_feature(objc_arc)
[_progressTintColor release];
[_backgroundTintColor release];
[super dealloc];
#pragma mark - Drawing
- (void)drawRect:(CGRect)rect {
CGRect allRect = self.
CGRect circleRect = CGRectInset(allRect, 2.0f, 2.0f);
CGContextRef context = UIGraphicsGetCurrentContext();
if (_annular) {
// Draw background
BOOL isPreiOS7 = NSFoundationVersionNumber & kCFCoreFoundationVersionNumber_iOS_7_0;
CGFloat lineWidth = isPreiOS7 ? 5.f : 2.f;
UIBezierPath *processBackgroundPath = [UIBezierPath bezierPath];
processBackgroundPath.lineWidth = lineW
processBackgroundPath.lineCapStyle = kCGLineCapB
CGPoint center = CGPointMake(CGRectGetWidth(self.bounds)/2, CGRectGetHeight(self.bounds)/2);
CGFloat radius = (CGRectGetWidth(self.bounds) - lineWidth)/2;
CGFloat startAngle = - ((float)M_PI / 2); // 90 degrees
CGFloat endAngle = (2 * (float)M_PI) + startA
[processBackgroundPath addArcWithCenter:center radius:radius startAngle:startAngle endAngle:endAngle clockwise:YES];
[_backgroundTintColor set];
[processBackgroundPath stroke];
// Draw progress
UIBezierPath *processPath = [UIBezierPath bezierPath];
processPath.lineCapStyle = isPreiOS7 ? kCGLineCapRound : kCGLineCapS
processPath.lineWidth = lineW
endAngle = (self.progress * 2 * (float)M_PI) + startA
[processPath addArcWithCenter:center radius:radius startAngle:startAngle endAngle:endAngle clockwise:YES];
[_progressTintColor set];
[processPath stroke];
// Draw background
[_progressTintColor setStroke];
[_backgroundTintColor setFill];
CGContextSetLineWidth(context, 2.0f);
CGContextFillEllipseInRect(context, circleRect);
CGContextStrokeEllipseInRect(context, circleRect);
// Draw progress
CGPoint center = CGPointMake(CGRectGetWidth(allRect) / 2, CGRectGetHeight(allRect) / 2);
CGFloat radius = (CGRectGetWidth(allRect) - 4) / 2;
CGFloat startAngle = - ((float)M_PI / 2); // 90 degrees
CGFloat endAngle = (self.progress * 2 * (float)M_PI) + startA
CGContextSetRGBFillColor(context, 1.0f, 1.0f, 1.0f, 1.0f); // white
CGContextMoveToPoint(context, center.x, center.y);
CGContextAddArc(context, center.x, center.y, radius, startAngle, endAngle, 0);
CGContextClosePath(context);
CGContextFillPath(context);
#pragma mark - KVO
- (void)registerForKVO {
for (NSString *keyPath in [self observableKeypaths]) {
[self addObserver:self forKeyPath:keyPath options:NSKeyValueObservingOptionNew context:NULL];
- (void)unregisterFromKVO {
for (NSString *keyPath in [self observableKeypaths]) {
[self removeObserver:self forKeyPath:keyPath];
- (NSArray *)observableKeypaths {
return [NSArray arrayWithObjects:@"progressTintColor", @"backgroundTintColor", @"progress", @"annular", nil];
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
[self setNeedsDisplay];
@implementation MBBarProgressView
#pragma mark - Lifecycle
- (id)init {
return [self initWithFrame:CGRectMake(.0f, .0f, 120.0f, 20.0f)];
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
_progress = 0.f;
_lineColor = [UIColor whiteColor];
_progressColor = [UIColor whiteColor];
_progressRemainingColor = [UIColor clearColor];
self.backgroundColor = [UIColor clearColor];
self.opaque = NO;
[self registerForKVO];
- (void)dealloc {
[self unregisterFromKVO];
#if !__has_feature(objc_arc)
[_lineColor release];
[_progressColor release];
[_progressRemainingColor release];
[super dealloc];
#pragma mark - Drawing
- (void)drawRect:(CGRect)rect {
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineWidth(context, 2);
CGContextSetStrokeColorWithColor(context,[_lineColor CGColor]);
CGContextSetFillColorWithColor(context, [_progressRemainingColor CGColor]);
// Draw background
float radius = (CGRectGetHeight(rect) / 2) - 2;
CGContextMoveToPoint(context, 2, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 2, 2, radius + 2, 2, radius);
CGContextAddLineToPoint(context, CGRectGetWidth(rect) - radius - 2, 2);
CGContextAddArcToPoint(context, CGRectGetWidth(rect) - 2, 2, CGRectGetWidth(rect) - 2, CGRectGetHeight(rect) / 2, radius);
CGContextAddArcToPoint(context, CGRectGetWidth(rect) - 2, CGRectGetHeight(rect) - 2, CGRectGetWidth(rect) - radius - 2, CGRectGetHeight(rect) - 2, radius);
CGContextAddLineToPoint(context, radius + 2, CGRectGetHeight(rect) - 2);
CGContextAddArcToPoint(context, 2, CGRectGetHeight(rect) - 2, 2, CGRectGetHeight(rect)/2, radius);
CGContextFillPath(context);
// Draw border
CGContextMoveToPoint(context, 2, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 2, 2, radius + 2, 2, radius);
CGContextAddLineToPoint(context, CGRectGetWidth(rect) - radius - 2, 2);
CGContextAddArcToPoint(context, CGRectGetWidth(rect) - 2, 2, CGRectGetWidth(rect) - 2, CGRectGetHeight(rect) / 2, radius);
CGContextAddArcToPoint(context, CGRectGetWidth(rect) - 2, CGRectGetHeight(rect) - 2, CGRectGetWidth(rect) - radius - 2, CGRectGetHeight(rect) - 2, radius);
CGContextAddLineToPoint(context, radius + 2, CGRectGetHeight(rect) - 2);
CGContextAddArcToPoint(context, 2, CGRectGetHeight(rect) - 2, 2, CGRectGetHeight(rect)/2, radius);
CGContextStrokePath(context);
CGContextSetFillColorWithColor(context, [_progressColor CGColor]);
radius = radius - 2;
float amount = self.progress * CGRectGetWidth(rect);
// Progress in the middle area
if (amount &= radius + 4 && amount &= (CGRectGetWidth(rect) - radius - 4)) {
CGContextMoveToPoint(context, 4, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 4, 4, radius + 4, 4, radius);
CGContextAddLineToPoint(context, amount, 4);
CGContextAddLineToPoint(context, amount, radius + 4);
CGContextMoveToPoint(context, 4, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 4, CGRectGetHeight(rect) - 4, radius + 4, CGRectGetHeight(rect) - 4, radius);
CGContextAddLineToPoint(context, amount, CGRectGetHeight(rect) - 4);
CGContextAddLineToPoint(context, amount, radius + 4);
CGContextFillPath(context);
// Progress in the right arc
else if (amount & radius + 4) {
float x = amount - (CGRectGetWidth(rect) - radius - 4);
CGContextMoveToPoint(context, 4, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 4, 4, radius + 4, 4, radius);
CGContextAddLineToPoint(context, CGRectGetWidth(rect) - radius - 4, 4);
float angle = -acos(x/radius);
if (isnan(angle)) angle = 0;
CGContextAddArc(context, CGRectGetWidth(rect) - radius - 4, CGRectGetHeight(rect)/2, radius, M_PI, angle, 0);
CGContextAddLineToPoint(context, amount, CGRectGetHeight(rect)/2);
CGContextMoveToPoint(context, 4, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 4, CGRectGetHeight(rect) - 4, radius + 4, CGRectGetHeight(rect) - 4, radius);
CGContextAddLineToPoint(context, CGRectGetWidth(rect) - radius - 4, CGRectGetHeight(rect) - 4);
angle = acos(x/radius);
if (isnan(angle)) angle = 0;
CGContextAddArc(context, CGRectGetWidth(rect) - radius - 4, CGRectGetHeight(rect)/2, radius, -M_PI, angle, 1);
CGContextAddLineToPoint(context, amount, CGRectGetHeight(rect)/2);
CGContextFillPath(context);
// Progress is in the left arc
else if (amount & radius + 4 && amount & 0) {
CGContextMoveToPoint(context, 4, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 4, 4, radius + 4, 4, radius);
CGContextAddLineToPoint(context, radius + 4, CGRectGetHeight(rect)/2);
CGContextMoveToPoint(context, 4, CGRectGetHeight(rect)/2);
CGContextAddArcToPoint(context, 4, CGRectGetHeight(rect) - 4, radius + 4, CGRectGetHeight(rect) - 4, radius);
CGContextAddLineToPoint(context, radius + 4, CGRectGetHeight(rect)/2);
CGContextFillPath(context);
#pragma mark - KVO
- (void)registerForKVO {
for (NSString *keyPath in [self observableKeypaths]) {
[self addObserver:self forKeyPath:keyPath options:NSKeyValueObservingOptionNew context:NULL];
- (void)unregisterFromKVO {
for (NSString *keyPath in [self observableKeypaths]) {
[self removeObserver:self forKeyPath:keyPath];
- (NSArray *)observableKeypaths {
return [NSArray arrayWithObjects:@"lineColor", @"progressRemainingColor", @"progressColor", @"progress", nil];
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
[self setNeedsDisplay];
MBProgressHUD.m
以下是本人在MBProgressHUD基础上封装的类，觉得部分的使用基于block
ShowHUD.h 与 ShowHUD.m
Created by YouXianMing on 14-9-29.
Copyright (c) 2014年 YouXianMing. All rights reserved.
#import &Foundation/Foundation.h&
#import "MBProgressHUD.h"
@class ShowHUD;
// 定义block
typedef void (^ConfigShowHUDBlock)(ShowHUD *config);
typedef UIView *(^ConfigShowHUDCustomViewBlock)();
// 定义枚举值
typedef enum {
= MBProgressHUDAnimationFade,
= MBProgressHUDAnimationZoom,
ZoomOut = MBProgressHUDAnimationZoomOut,
= MBProgressHUDAnimationZoomIn,
} HUDAnimationT
@interface ShowHUD : NSObject
// 动画效果
@property (nonatomic, assign) HUDAnimationType
animationS
// 动画样式
// 文本加菊花
@property (nonatomic, strong) NSString
@property (nonatomic, strong) UIFont
// 文本字体
// 自定义view
@property (nonatomic, strong) UIView
// 自定义view
// 只显示文本的相关设置
@property (nonatomic, assign) BOOL
// 只显示文本
// 边缘留白
@property (nonatomic, assign) float
// 边缘留白
// 颜色设置(设置了颜色之后,透明度就会失效)
@property (nonatomic, strong) UIColor
*backgroundC // 背景颜色
@property (nonatomic, strong) UIColor
// 文本颜色
@property (nonatomic, assign) float
@property (nonatomic, assign) float
// 仅仅显示文本并持续几秒的方法
/* - 使用示例 -
[ShowHUD showTextOnly:@"请稍后,显示不了..."
configParameter:^(ShowHUD *config) {
config.margin
// 边缘留白
config.opacity
// 设定透明度
config.cornerRadius
// 设定圆角
} duration:3 inView:self.view];
+ (void)showTextOnly:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
duration:(NSTimeInterval)sec
inView:(UIView *)
// 显示文本与菊花并持续几秒的方法(文本为nil时只显示菊花)
/* - 使用示例 -
[ShowHUD showText:@"请稍后,显示不了..."
configParameter:^(ShowHUD *config) {
config.margin
// 边缘留白
config.opacity
// 设定透明度
config.cornerRadius
// 设定圆角
} duration:3 inView:self.view];
+ (void)showText:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
duration:(NSTimeInterval)sec
inView:(UIView *)
// 加载自定义view并持续几秒的方法
/* - 使用示例 -
[ShowHUD showText:@"请稍后,显示不了..."
configParameter:^(ShowHUD *config) {
config.margin
// 边缘留白
config.opacity
// 设定透明度
config.cornerRadius
// 设定圆角
} duration:3 inView:self.view];
+ (void)showCustomView:(ConfigShowHUDCustomViewBlock)viewBlock
configParameter:(ConfigShowHUDBlock)config
duration:(NSTimeInterval)sec
inView:(UIView *)
+ (instancetype)showTextOnly:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
inView:(UIView *)
+ (instancetype)showText:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
inView:(UIView *)
+ (instancetype)showCustomView:(ConfigShowHUDCustomViewBlock)viewBlock
configParameter:(ConfigShowHUDBlock)config
inView:(UIView *)
Created by YouXianMing on 14-9-29.
Copyright (c) 2014年 YouXianMing. All rights reserved.
#import "ShowHUD.h"
#ifdef DEBUG
#define ShowHUD_DLog(fmt, ...) NSLog((@"ShowHUD.m:%s:%d" fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);
#define ShowHUD_DLog(...)
@interface ShowHUD ()&MBProgressHUDDelegate&
MBProgressHUD
@implementation ShowHUD
- (instancetype)initWithView:(UIView *)view
if (view == nil) {
self = [super init];
if (self) {
_hud = [[MBProgressHUD alloc] initWithView:view];
_hud.delegate
// 设置代理
_hud.animationType
= MBProgressHUDAnimationZ // 默认动画样式
_hud.removeFromSuperViewOnHide = YES;
// 该视图隐藏后则自动从父视图移除掉
[view addSubview:_hud];
- (void)hide:(BOOL)hide afterDelay:(NSTimeInterval)delay
[_hud hide:hide afterDelay:delay];
- (void)hide
[_hud hide:YES];
- (void)show:(BOOL)show
// 根据属性判断是否要显示文本
if (_text != nil && _text.length != 0) {
_hud.labelText = _
// 设置文本字体
if (_textFont) {
_hud.labelFont = _textF
// 如果设置这个属性,则只显示文本
if (_showTextOnly == YES && _text != nil && _text.length != 0) {
_hud.mode = MBProgressHUDModeT
// 设置背景色
if (_backgroundColor) {
_hud.color = _backgroundC
// 文本颜色
if (_labelColor) {
_hud.labelColor = _labelC
// 设置圆角
if (_cornerRadius) {
_hud.cornerRadius = _cornerR
// 设置透明度
if (_opacity) {
_hud.opacity = _
// 自定义view
if (_customView) {
_hud.mode = MBProgressHUDModeCustomV
_hud.customView = _customV
// 边缘留白
if (_margin & 0) {
_hud.margin = _
[_hud show:show];
#pragma mark - HUD代理方法
- (void)hudWasHidden:(MBProgressHUD *)hud
[_hud removeFromSuperview];
#pragma mark - 重写setter方法
@synthesize animationStyle = _animationS
- (void)setAnimationStyle:(HUDAnimationType)animationStyle
_animationStyle
= animationS
_hud.animationType = (MBProgressHUDAnimation)_animationS
- (HUDAnimationType)animationStyle
return _animationS
#pragma mark - 便利的方法
+ (void)showTextOnly:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
duration:(NSTimeInterval)sec
inView:(UIView *)view
ShowHUD *hud
= [[ShowHUD alloc] initWithView:view];
hud.showTextOnly = YES;
hud.margin
// 配置额外的参数
config(hud);
[hud show:YES];
// 延迟sec后消失
[hud hide:YES afterDelay:sec];
+ (void)showText:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
duration:(NSTimeInterval)sec
inView:(UIView *)view
ShowHUD *hud
= [[ShowHUD alloc] initWithView:view];
hud.margin
// 配置额外的参数
config(hud);
[hud show:YES];
// 延迟sec后消失
[hud hide:YES afterDelay:sec];
+ (void)showCustomView:(ConfigShowHUDCustomViewBlock)viewBlock
configParameter:(ConfigShowHUDBlock)config
duration:(NSTimeInterval)sec
inView:(UIView *)view
ShowHUD *hud
= [[ShowHUD alloc] initWithView:view];
hud.margin
// 配置额外的参数
config(hud);
// 自定义View
hud.customView
= viewBlock();
[hud show:YES];
[hud hide:YES afterDelay:sec];
+ (instancetype)showTextOnly:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
inView:(UIView *)view
ShowHUD *hud
= [[ShowHUD alloc] initWithView:view];
hud.showTextOnly = YES;
hud.margin
// 配置额外的参数
config(hud);
[hud show:YES];
+ (instancetype)showText:(NSString *)text
configParameter:(ConfigShowHUDBlock)config
inView:(UIView *)view
ShowHUD *hud
= [[ShowHUD alloc] initWithView:view];
hud.margin
// 配置额外的参数
config(hud);
[hud show:YES];
+ (instancetype)showCustomView:(ConfigShowHUDCustomViewBlock)viewBlock
configParameter:(ConfigShowHUDBlock)config
inView:(UIView *)view
ShowHUD *hud
= [[ShowHUD alloc] initWithView:view];
hud.margin
// 配置额外的参数
config(hud);
// 自定义View
hud.customView
= viewBlock();
[hud show:YES];
- (void)dealloc
ShowHUD_DLog(@"资源释放了,没有泄露^_^");
使用时候的源码如下：//
ViewController.m
Created by YouXianMing on 14-9-29.
Copyright (c) 2014年 YouXianMing. All rights reserved.
#import "ViewController.h"
#import "ShowHUD.h" // 引入头文件
typedef enum : NSUInteger {
CASE_1, // 显示文本和菊花,延时3秒后消失
CASE_2, // 仅仅显示文本,延时3秒后消失
CASE_3, // 加载自定义view,3秒后消失
@interface ViewController ()&MBProgressHUDDelegate&
@property (nonatomic, assign) NSInteger
@implementation ViewController
- (void)showHUD
UIWindow *window =
[UIApplication sharedApplication].keyW
switch (_caseType++ % 3) {
case CASE_1: {
[ShowHUD showText:@"YouXianMing"
configParameter:^(ShowHUD *config) {
config.margin
// 边缘留白
config.opacity
// 设定透明度
config.cornerRadius
// 设定圆角
config.textFont
= [UIFont systemFontOfSize:11.f];
} duration:3 inView:window];
case CASE_2: {
[ShowHUD showTextOnly:@"YouXianMing"
configParameter:^(ShowHUD *config) {
config.animationStyle
// 设置动画方式
config.margin
// 边缘留白
config.opacity
// 设定透明度
config.cornerRadius
// 设定圆角
config.backgroundColor = [[UIColor redColor] colorWithAlphaComponent:0.8];
// 设置背景色
config.labelColor
= [[UIColor whiteColor] colorWithAlphaComponent:1.0];// 设置文本颜色
} duration:3 inView:window];
case CASE_3: {
BackgroundView *backView = [[BackgroundView alloc] initInView:window];
backView.startDuration = 0.25;
backView.endDuration
[backView addToView];
ShowHUD *hud = [ShowHUD showCustomView:^UIView *{
// 返回一个自定义view即可,hud会自动根据你返回的view调整空间
MulticolorView *showView = [[MulticolorView alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];
showView.lineWidth
showView.sec
showView.colors
= @[(id)[UIColor cyanColor].CGColor,
(id)[UIColor yellowColor].CGColor,
(id)[UIColor cyanColor].CGColor];
[showView startAnimation];
return showV
} configParameter:^(ShowHUD *config) {
config.animationStyle
// 设定动画方式
config.margin
// 边缘留白
config.cornerRadius
// 边缘圆角
config.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.4f];
} inView:window];
// 延迟5秒后消失
[GCDQueue executeInMainQueue:^{
[hud hide];
[backView removeSelf];
} afterDelaySecs:5];
- (void)viewDidLoad {
[super viewDidLoad];
_caseType = 0;
UIButton *button = [[UIButton alloc] initWithFrame:self.view.bounds];
[self.view addSubview:button];
[button addTarget:self
action:@selector(buttonEvent:)
forControlEvents:UIControlEventTouchUpInside];
- (void)buttonEvent:(id)sender
[self showHUD];
以下是使用上的一些小细节
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