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MBProgressHUD.h
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MBProgressHUD.h
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//
// MBProgressHUD.h
// Version 1.2.0
// Created by Matej Bukovinski on 2.4.09.
//
// This code is distributed under the terms and conditions of the MIT license.
// Copyright © 2009-2020 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>
@class MBBackgroundView;
@protocol MBProgressHUDDelegate;
extern CGFloat const MBProgressMaxOffset;
typedef NS_ENUM(NSInteger, MBProgressHUDMode) {
/// UIActivityIndicatorView.
MBProgressHUDModeIndeterminate,
/// A round, pie-chart like, progress view.
MBProgressHUDModeDeterminate,
/// Horizontal progress bar.
MBProgressHUDModeDeterminateHorizontalBar,
/// Ring-shaped progress view.
MBProgressHUDModeAnnularDeterminate,
/// Shows a custom view.
MBProgressHUDModeCustomView,
/// Shows only labels.
MBProgressHUDModeText
};
typedef NS_ENUM(NSInteger, MBProgressHUDAnimation) {
/// Opacity animation
MBProgressHUDAnimationFade,
/// Opacity + scale animation (zoom in when appearing zoom out when disappearing)
MBProgressHUDAnimationZoom,
/// Opacity + scale animation (zoom out style)
MBProgressHUDAnimationZoomOut,
/// Opacity + scale animation (zoom in style)
MBProgressHUDAnimationZoomIn
};
typedef NS_ENUM(NSInteger, MBProgressHUDBackgroundStyle) {
/// Solid color background
MBProgressHUDBackgroundStyleSolidColor,
/// UIVisualEffectView or UIToolbar.layer background view
MBProgressHUDBackgroundStyleBlur
};
typedef void (^MBProgressHUDCompletionBlock)(void);
NS_ASSUME_NONNULL_BEGIN
/**
* 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.
*
* @note To still allow touches to pass through the HUD, you can set hud.userInteractionEnabled = NO.
* @attention MBProgressHUD is a UI class and should therefore only be accessed on the main thread.
*/
@interface MBProgressHUD : UIView
/**
* Creates a new HUD, adds it to provided view and shows it. The counterpart to this method is hideHUDForView:animated:.
*
* @note This method sets removeFromSuperViewOnHide. The HUD will automatically be removed from the view hierarchy when hidden.
*
* @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
*/
+ (instancetype)showHUDAddedTo:(UIView *)view animated:(BOOL)animated;
/// @name Showing and hiding
/**
* Finds the top-most HUD subview that hasn't finished and hides it. The counterpart to this method is showHUDAddedTo:animated:.
*
* @note This method sets removeFromSuperViewOnHide. The HUD will automatically be removed from the view hierarchy when hidden.
*
* @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)animated;
/**
* Finds the top-most HUD subview that hasn't finished and returns it.
*
* @param view The view that is going to be searched.
* @return A reference to the last HUD subview discovered.
*/
+ (nullable MBProgressHUD *)HUDForView:(UIView *)view NS_SWIFT_NAME(forView(_:));
/**
* 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).
*/
- (instancetype)initWithView:(UIView *)view;
/**
* Displays the HUD.
*
* @note You need to make sure that the main thread completes its run loop soon after this method call so that
* 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 making 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)showAnimated:(BOOL)animated;
/**
* Hides 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)hideAnimated:(BOOL)animated;
/**
* Hides 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)hideAnimated:(BOOL)animated afterDelay:(NSTimeInterval)delay;
/**
* The HUD delegate object. Receives HUD state notifications.
*/
@property (weak, nonatomic) id<MBProgressHUDDelegate> delegate;
/**
* Called after the HUD is hidden.
*/
@property (copy, nullable) MBProgressHUDCompletionBlock completionBlock;
/**
* 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).
* @note The graceTime needs to be set before the hud is shown. You thus can't use `showHUDAddedTo:animated:`,
* but instead need to alloc / init the HUD, configure the grace time and than show it manually.
*/
@property (assign, nonatomic) NSTimeInterval graceTime;
/**
* 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, nonatomic) NSTimeInterval minShowTime;
/**
* Removes the HUD from its parent view when hidden.
* Defaults to NO.
*/
@property (assign, nonatomic) BOOL removeFromSuperViewOnHide;
/// @name Appearance
/**
* MBProgressHUD operation mode. The default is MBProgressHUDModeIndeterminate.
*/
@property (assign, nonatomic) MBProgressHUDMode mode;
/**
* A color that gets forwarded to all labels and supported indicators. Also sets the tintColor
* for custom views on iOS 7+. Set to nil to manage color individually.
* Defaults to semi-translucent black on iOS 7 and later and white on earlier iOS versions.
*/
@property (strong, nonatomic, nullable) UIColor *contentColor UI_APPEARANCE_SELECTOR;
/**
* The animation type that should be used when the HUD is shown and hidden.
*/
@property (assign, nonatomic) MBProgressHUDAnimation animationType UI_APPEARANCE_SELECTOR;
/**
* The bezel offset relative to the center of the view. You can use MBProgressMaxOffset
* and -MBProgressMaxOffset to move the HUD all the way to the screen edge in each direction.
* E.g., CGPointMake(0.f, MBProgressMaxOffset) would position the HUD centered on the bottom edge.
*/
@property (assign, nonatomic) CGPoint offset UI_APPEARANCE_SELECTOR;
/**
* The amount of space between the HUD edge and the HUD elements (labels, indicators or custom views).
* This also represents the minimum bezel distance to the edge of the HUD view.
* Defaults to 20.f
*/
@property (assign, nonatomic) CGFloat margin UI_APPEARANCE_SELECTOR;
/**
* The minimum size of the HUD bezel. Defaults to CGSizeZero (no minimum size).
*/
@property (assign, nonatomic) CGSize minSize UI_APPEARANCE_SELECTOR;
/**
* Force the HUD dimensions to be equal if possible.
*/
@property (assign, nonatomic, getter = isSquare) BOOL square UI_APPEARANCE_SELECTOR;
/**
* When enabled, the bezel center gets slightly affected by the device accelerometer data.
* Defaults to NO.
*
* @note This can cause main thread checker assertions on certain devices. https://github.com/jdg/MBProgressHUD/issues/552
*/
@property (assign, nonatomic, getter=areDefaultMotionEffectsEnabled) BOOL defaultMotionEffectsEnabled UI_APPEARANCE_SELECTOR;
/// @name Progress
/**
* The progress of the progress indicator, from 0.0 to 1.0. Defaults to 0.0.
*/
@property (assign, nonatomic) float progress;
/// @name ProgressObject
/**
* The NSProgress object feeding the progress information to the progress indicator.
*/
@property (strong, nonatomic, nullable) NSProgress *progressObject;
/// @name Views
/**
* The view containing the labels and indicator (or customView).
*/
@property (strong, nonatomic, readonly) MBBackgroundView *bezelView;
/**
* View covering the entire HUD area, placed behind bezelView.
*/
@property (strong, nonatomic, readonly) MBBackgroundView *backgroundView;
/**
* The UIView (e.g., a UIImageView) to be shown when the HUD is in MBProgressHUDModeCustomView.
* The view should implement intrinsicContentSize for proper sizing. For best results use approximately 37 by 37 pixels.
*/
@property (strong, nonatomic, nullable) UIView *customView;
/**
* A label that holds an optional short message to be displayed below the activity indicator. The HUD is automatically resized to fit
* the entire text.
*/
@property (strong, nonatomic, readonly) UILabel *label;
/**
* A label that holds an optional details message displayed below the labelText message. The details text can span multiple lines.
*/
@property (strong, nonatomic, readonly) UILabel *detailsLabel;
/**
* A button that is placed below the labels. Visible only if a target / action is added and a title is assigned..
*/
@property (strong, nonatomic, readonly) UIButton *button;
@end
@protocol MBProgressHUDDelegate <NSObject>
@optional
/**
* Called after the HUD was fully hidden from the screen.
*/
- (void)hudWasHidden:(MBProgressHUD *)hud;
@end
/**
* 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) float progress;
/**
* Indicator progress color.
* Defaults to white [UIColor whiteColor].
*/
@property (nonatomic, strong) UIColor *progressTintColor;
/**
* Indicator background (non-progress) color.
* Only applicable on iOS versions older than iOS 7.
* Defaults to translucent white (alpha 0.1).
*/
@property (nonatomic, strong) UIColor *backgroundTintColor;
/*
* Display mode - NO = round or YES = annular. Defaults to round.
*/
@property (nonatomic, assign, getter = isAnnular) BOOL annular;
@end
/**
* A flat bar progress view.
*/
@interface MBBarProgressView : UIView
/**
* Progress (0.0 to 1.0)
*/
@property (nonatomic, assign) float progress;
/**
* Bar border line color.
* Defaults to white [UIColor whiteColor].
*/
@property (nonatomic, strong) UIColor *lineColor;
/**
* Bar background color.
* Defaults to clear [UIColor clearColor];
*/
@property (nonatomic, strong) UIColor *progressRemainingColor;
/**
* Bar progress color.
* Defaults to white [UIColor whiteColor].
*/
@property (nonatomic, strong) UIColor *progressColor;
@end
@interface MBBackgroundView : UIView
/**
* The background style.
* Defaults to MBProgressHUDBackgroundStyleBlur.
*/
@property (nonatomic) MBProgressHUDBackgroundStyle style;
/**
* The blur effect style, when using MBProgressHUDBackgroundStyleBlur.
* Defaults to UIBlurEffectStyleLight.
*/
@property (nonatomic) UIBlurEffectStyle blurEffectStyle;
/**
* The background color or the blur tint color.
*
* Defaults to nil on iOS 13 and later and
* `[UIColor colorWithWhite:0.8f alpha:0.6f]`
* on older systems.
*/
@property (nonatomic, strong, nullable) UIColor *color;
@end
NS_ASSUME_NONNULL_END