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Merge pull request onevcat#109 from onevcat/feature/transition-options
Transition options support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| // | ||
| // ImageTransition.swift | ||
| // Kingfisher | ||
| // | ||
| // Created by Wei Wang on 15/9/18. | ||
| // | ||
| // Copyright (c) 2015 Wei Wang <[email protected]> | ||
| // | ||
| // 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 | ||
|
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||
| /** | ||
| Transition effect to use when an image loaded by `UIImageView` extension API in Kingfisher. | ||
| You can assign an enum value with transition duration as an item in `KingfisherOptionsInfo` | ||
| to enable the animation transition. | ||
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| Apple's UIViewAnimationOptions is used under the hood. | ||
| For custom transition, you should specified your own transition options, animations and | ||
| comletion handler as well. | ||
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| - None: No animation transistion. | ||
| - Fade: Fade in the loaded image. | ||
| - FlipFromLeft: Flip from left transition. | ||
| - FlipFromRight: Flip from right transition. | ||
| - FlipFromTop: Flip from top transition. | ||
| - FlipFromBottom: Flip from bottom transition. | ||
| - Custom: Custom transition. | ||
| */ | ||
| public enum ImageTransition { | ||
| case None | ||
| case Fade(NSTimeInterval) | ||
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| case FlipFromLeft(NSTimeInterval) | ||
| case FlipFromRight(NSTimeInterval) | ||
| case FlipFromTop(NSTimeInterval) | ||
| case FlipFromBottom(NSTimeInterval) | ||
|
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| case Custom(duration: NSTimeInterval, | ||
| options: UIViewAnimationOptions, | ||
| animations: ((UIImageView, UIImage) -> Void)?, | ||
| completion: ((Bool) -> Void)?) | ||
|
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| var duration: NSTimeInterval { | ||
| switch self { | ||
| case .None: return 0 | ||
| case .Fade(let duration): return duration | ||
|
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| case .FlipFromLeft(let duration): return duration | ||
| case .FlipFromRight(let duration): return duration | ||
| case .FlipFromTop(let duration): return duration | ||
| case .FlipFromBottom(let duration): return duration | ||
|
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| case .Custom(let duration, _, _, _): return duration | ||
| } | ||
| } | ||
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| var animationOptions: UIViewAnimationOptions { | ||
| switch self { | ||
| case .None: return .TransitionNone | ||
| case .Fade(_): return .TransitionCrossDissolve | ||
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| case .FlipFromLeft(_): return .TransitionFlipFromLeft | ||
| case .FlipFromRight(_): return .TransitionFlipFromRight | ||
| case .FlipFromTop(_): return .TransitionFlipFromTop | ||
| case .FlipFromBottom(_): return .TransitionFlipFromBottom | ||
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| case .Custom(_, let options, _, _): return options | ||
| } | ||
| } | ||
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| var animations: ((UIImageView, UIImage) -> Void)? { | ||
| switch self { | ||
| case .Custom(_, _, let animations, _): return animations | ||
| default: return {$0.image = $1} | ||
| } | ||
| } | ||
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| var completion: ((Bool) -> Void)? { | ||
| switch self { | ||
| case .Custom(_, _, _, let completion): return completion | ||
| default: return nil | ||
| } | ||
| } | ||
| } | ||
|
|
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