90 lines
4.2 KiB
Objective-C
90 lines
4.2 KiB
Objective-C
/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import "SDWebImageCompat.h"
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#if SD_UIKIT || SD_MAC
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#import "SDImageCache.h"
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#if SD_UIKIT
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typedef UIViewAnimationOptions SDWebImageAnimationOptions;
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#else
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typedef NS_OPTIONS(NSUInteger, SDWebImageAnimationOptions) {
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SDWebImageAnimationOptionAllowsImplicitAnimation = 1 << 0, // specify `allowsImplicitAnimation` for the `NSAnimationContext`
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};
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#endif
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typedef void (^SDWebImageTransitionPreparesBlock)(__kindof UIView * _Nonnull view, UIImage * _Nullable image, NSData * _Nullable imageData, SDImageCacheType cacheType, NSURL * _Nullable imageURL);
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typedef void (^SDWebImageTransitionAnimationsBlock)(__kindof UIView * _Nonnull view, UIImage * _Nullable image);
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typedef void (^SDWebImageTransitionCompletionBlock)(BOOL finished);
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/**
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This class is used to provide a transition animation after the view category load image finished. Use this on `sd_imageTransition` in UIView+WebCache.h
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for UIKit(iOS & tvOS), we use `+[UIView transitionWithView:duration:options:animations:completion]` for transition animation.
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for AppKit(macOS), we use `+[NSAnimationContext runAnimationGroup:completionHandler:]` for transition animation. You can call `+[NSAnimationContext currentContext]` to grab the context during animations block.
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@note These transition are provided for basic usage. If you need complicated animation, consider to directly use Core Animation or use `SDWebImageAvoidAutoSetImage` and implement your own after image load finished.
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*/
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@interface SDWebImageTransition : NSObject
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/**
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By default, we set the image to the view at the beginning of the animtions. You can disable this and provide custom set image process
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*/
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@property (nonatomic, assign) BOOL avoidAutoSetImage;
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/**
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The duration of the transition animation, measured in seconds. Defaults to 0.5.
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*/
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@property (nonatomic, assign) NSTimeInterval duration;
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/**
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The timing function used for all animations within this transition animation (macOS).
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*/
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@property (nonatomic, strong, nullable) CAMediaTimingFunction *timingFunction API_UNAVAILABLE(ios, tvos, watchos);
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/**
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A mask of options indicating how you want to perform the animations.
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*/
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@property (nonatomic, assign) SDWebImageAnimationOptions animationOptions;
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/**
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A block object to be executed before the animation sequence starts.
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*/
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@property (nonatomic, copy, nullable) SDWebImageTransitionPreparesBlock prepares;
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/**
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A block object that contains the changes you want to make to the specified view.
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*/
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@property (nonatomic, copy, nullable) SDWebImageTransitionAnimationsBlock animations;
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/**
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A block object to be executed when the animation sequence ends.
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*/
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@property (nonatomic, copy, nullable) SDWebImageTransitionCompletionBlock completion;
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@end
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/**
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Convenience way to create transition. Remember to specify the duration if needed.
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for UIKit, these transition just use the correspond `animationOptions`. By default we enable `UIViewAnimationOptionAllowUserInteraction` to allow user interaction during transition.
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for AppKit, these transition use Core Animation in `animations`. So your view must be layer-backed. Set `wantsLayer = YES` before you apply it.
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*/
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@interface SDWebImageTransition (Conveniences)
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/// Fade transition.
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@property (nonatomic, class, nonnull, readonly) SDWebImageTransition *fadeTransition;
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/// Flip from left transition.
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@property (nonatomic, class, nonnull, readonly) SDWebImageTransition *flipFromLeftTransition;
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/// Flip from right transition.
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@property (nonatomic, class, nonnull, readonly) SDWebImageTransition *flipFromRightTransition;
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/// Flip from top transition.
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@property (nonatomic, class, nonnull, readonly) SDWebImageTransition *flipFromTopTransition;
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/// Flip from bottom transition.
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@property (nonatomic, class, nonnull, readonly) SDWebImageTransition *flipFromBottomTransition;
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/// Curl up transition.
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@property (nonatomic, class, nonnull, readonly) SDWebImageTransition *curlUpTransition;
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/// Curl down transition.
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@property (nonatomic, class, nonnull, readonly) SDWebImageTransition *curlDownTransition;
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@end
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#endif
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