37b582beda
Implemented using corbett's suggestion in issue #525. Uses Flipboard/FLAnimatedImage in an AttachmentAdapter. Detects gifs using new Animated category in MIMETypeUtil. Backwards compatible with previous versions of Signal on iOS for both sending and receiving Gifs, though they are sent/received in older versions as UIImage and won't animate. Gifs also animate on both ends of conversations with TextSecure users on Android. //FREEBIE
48 lines
1.7 KiB
Objective-C
Executable File
48 lines
1.7 KiB
Objective-C
Executable File
//
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// FLAnimatedImageView.h
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// Flipboard
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//
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// Created by Raphael Schaad on 7/8/13.
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// Copyright (c) 2013-2015 Flipboard. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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@class FLAnimatedImage;
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@protocol FLAnimatedImageViewDebugDelegate;
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//
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// An `FLAnimatedImageView` can take an `FLAnimatedImage` and plays it automatically when in view hierarchy and stops when removed.
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// The animation can also be controlled with the `UIImageView` methods `-start/stop/isAnimating`.
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// It is a fully compatible `UIImageView` subclass and can be used as a drop-in component to work with existing code paths expecting to display a `UIImage`.
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// Under the hood it uses a `CADisplayLink` for playback, which can be inspected with `currentFrame` & `currentFrameIndex`.
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//
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@interface FLAnimatedImageView : UIImageView
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// Setting `[UIImageView.image]` to a non-`nil` value clears out existing `animatedImage`.
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// And vice versa, setting `animatedImage` will initially populate the `[UIImageView.image]` to its `posterImage` and then start animating and hold `currentFrame`.
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@property (nonatomic, strong) FLAnimatedImage *animatedImage;
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@property (nonatomic, strong, readonly) UIImage *currentFrame;
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@property (nonatomic, assign, readonly) NSUInteger currentFrameIndex;
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#if defined(DEBUG) && DEBUG
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// Only intended to report internal state for debugging
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@property (nonatomic, weak) id<FLAnimatedImageViewDebugDelegate> debug_delegate;
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#endif
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@end
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#if defined(DEBUG) && DEBUG
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@protocol FLAnimatedImageViewDebugDelegate <NSObject>
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@optional
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- (void)debug_animatedImageView:(FLAnimatedImageView *)animatedImageView waitingForFrame:(NSUInteger)index duration:(NSTimeInterval)duration;
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@end
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#endif
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