//
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// SGScanCode.h
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// SGQRCodeExample
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//
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// Created by kingsic on 2016/8/16.
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// Copyright © 2016年 kingsic. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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#import "SGScanCodeDelegate.h"
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@interface SGScanCode : NSObject
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/// 类方法创建
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+ (instancetype)scanCode;
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/// 预览视图，必须设置（传外界控制器视图）
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@property (nonatomic, strong) UIView *preview;
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/// 扫描区域，以屏幕右上角为坐标原点，取值范围：0～1，默认为整个屏幕
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@property (nonatomic, assign) CGRect rectOfInterest;
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/// 扫描二维码数据代理
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@property (nonatomic, weak) id<SGScanCodeDelegate> delegate;
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/// 采样缓冲区代理
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@property (nonatomic, weak) id<SGScanCodeSampleBufferDelegate> sampleBufferDelegate;
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/// 读取图片中的二维码
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///
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/// @param image 图片
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/// @param completion 回调方法，读取成功时，回调参数 result 等于二维码数据，否则等于 nil
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- (void)readQRCode:(UIImage *)image completion:(void (^)(NSString *result))completion;
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/// 设置视频缩放因子（捕获内容）
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- (void)setVideoZoomFactor:(CGFloat)factor;
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/// 检测后置摄像头是否可用
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- (BOOL)checkCameraDeviceRearAvailable;
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/// 开启扫描
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- (void)startRunning;
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/// 停止扫描
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- (void)stopRunning;
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/// 播放音效
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- (void)playSoundEffect:(NSString *)name;
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@end
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