//
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// UIScrollView+ZFPlayer.m
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// ZFPlayer
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//
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// Copyright (c) 2016年 任子丰 ( http://github.com/renzifeng )
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import <Foundation/Foundation.h>
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@interface ZFKVOController : NSObject
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- (instancetype)initWithTarget:(NSObject *)target;
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- (void)safelyAddObserver:(NSObject *)observer
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forKeyPath:(NSString *)keyPath
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options:(NSKeyValueObservingOptions)options
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context:(void *)context;
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- (void)safelyRemoveObserver:(NSObject *)observer
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forKeyPath:(NSString *)keyPath;
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- (void)safelyRemoveAllObservers;
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@end
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