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//
// SGScanCode.h
// SGQRCodeExample
//
// Created by kingsic on 2016/8/16.
// Copyright © 2016年 kingsic. All rights reserved.
//
#import <UIKit/UIKit.h>
#import "SGScanCodeDelegate.h"
@interface SGScanCode : NSObject
/// 类方法创建
+ (instancetype)scanCode;
/// 预览视图,必须设置(传外界控制器视图)
@property (nonatomic, strong) UIView *preview;
/// 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
@property (nonatomic, assign) CGRect rectOfInterest;
/// 扫描二维码数据代理
@property (nonatomic, weak) id<SGScanCodeDelegate> delegate;
/// 采样缓冲区代理
@property (nonatomic, weak) id<SGScanCodeSampleBufferDelegate> sampleBufferDelegate;
/// 读取图片中的二维码
///
/// @param image 图片
/// @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
- (void)readQRCode:(UIImage *)image completion:(void (^)(NSString *result))completion;
/// 设置视频缩放因子(捕获内容)
- (void)setVideoZoomFactor:(CGFloat)factor;
/// 检测后置摄像头是否可用
- (BOOL)checkCameraDeviceRearAvailable;
/// 开启扫描
- (void)startRunning;
/// 停止扫描
- (void)stopRunning;
/// 播放音效
- (void)playSoundEffect:(NSString *)name;
@end