//
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// LBXScanWrapper.m
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//
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//
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// Created by lbxia on 15/3/4.
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// Copyright (c) 2015年 lbxia. All rights reserved.
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//
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#import "LBXScanWrapper.h"
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#import "LBXScanNative.h"
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#import "ZXingWrapper.h"
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#import "ZXBarcodeFormat.h"
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#import <AssetsLibrary/AssetsLibrary.h>
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#import <Photos/Photos.h>
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@interface LBXScanWrapper()
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{
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}
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//ios7之后native封装
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@property(nonatomic,strong)LBXScanNative* scanNativeObj;
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//ZXing封装
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@property(nonatomic,strong)ZXingWrapper *scanZXingObj;
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/**
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@brief 扫码类型
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*/
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@property(nonatomic,strong)NSArray* arrayBarCodeType;
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//是否指定使用ZXing库
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@property(nonatomic,assign)BOOL isUseZXingLib;
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@end
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@implementation LBXScanWrapper
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+ (BOOL)isSysIos7Later
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{
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// return NO;
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if([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)
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return YES;
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return NO;
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}
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+ (BOOL)isSysIos8Later
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{
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// return NO;
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if([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
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return YES;
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return NO;
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}
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- (void)setNeedCaptureImage:(BOOL)isNeedCaputureImg
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{
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if (_scanNativeObj) {
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[_scanNativeObj setNeedCaptureImage:isNeedCaputureImg];
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}
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}
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- (instancetype)initWithPreView:(UIView*)preView ArrayObjectType:(NSArray*)arrayBarCodeType cropRect:(CGRect)cropRect
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success:(void(^)(NSArray<LBXScanResult*> *array))blockScanResult
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{
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if (self = [super init])
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{
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self.isUseZXingLib = NO;
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self.arrayBarCodeType = arrayBarCodeType;
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CGRect frame = preView.frame;
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frame.origin = CGPointZero;
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if ( [LBXScanWrapper isSysIos7Later] )
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{
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_scanNativeObj = [[LBXScanNative alloc]initWithPreView:preView ObjectType:arrayBarCodeType cropRect:cropRect success:^(NSArray<LBXScanResult*> *array) {
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if (blockScanResult)
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{
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blockScanResult(array);
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}
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}];
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}
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else
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{
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_scanZXingObj = [[ZXingWrapper alloc]initWithPreView:preView block:^(ZXBarcodeFormat barcodeFormat, NSString *str, UIImage *scanImg) {
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//TODO:ZXing统一识别所有的码
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if ( blockScanResult )
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{
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NSString *barCodeType = [LBXScanWrapper convertZXBarcodeFormat:barcodeFormat];
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LBXScanResult *result = [[LBXScanResult alloc]initWithScanString:str imgScan:scanImg barCodeType:barCodeType];
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blockScanResult(@[result]);
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}
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}];
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}
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}
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return self;
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}
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/**
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@brief 初始化相机，并指定使用ZXing库识别各种码
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@param preView 视频显示View
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@param blockScanResult 返回结果
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@return LBXScanVendor
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*/
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- (instancetype)initZXingWithPreView:(UIView *)preView success:(void(^)(NSArray<LBXScanResult*> *array))blockScanResult
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{
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if (self = [super init])
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{
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self.isUseZXingLib = YES;
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_scanZXingObj = [[ZXingWrapper alloc]initWithPreView:preView block:^(ZXBarcodeFormat barcodeFormat, NSString *str, UIImage *scanImg) {
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NSString *barCodeType = [LBXScanWrapper convertZXBarcodeFormat:barcodeFormat];
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if (blockScanResult) {
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blockScanResult(@[str,scanImg,barCodeType]);
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}
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}];
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}
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return self;
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}
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/*!
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* 开始扫码
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*/
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- (void)startScan
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{
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if ( [LBXScanWrapper isSysIos7Later] && !_isUseZXingLib )
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[_scanNativeObj startScan];
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else
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[_scanZXingObj start];
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}
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/*!
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* 停止扫码
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*/
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- (void)stopScan
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{
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if ( [LBXScanWrapper isSysIos7Later] && !_isUseZXingLib )
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[_scanNativeObj stopScan];
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else
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[_scanZXingObj stop];
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}
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- (void)openFlash:(BOOL)bOpen
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{
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AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
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if ([device hasTorch] && [device hasFlash])
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{
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if ([LBXScanWrapper isSysIos7Later] && !_isUseZXingLib )
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[_scanNativeObj setTorch:bOpen];
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else
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[_scanZXingObj openTorch:bOpen];
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}
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}
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- (void)openOrCloseFlash
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{
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AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
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if ([device hasTorch] && [device hasFlash])
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{
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if ([LBXScanWrapper isSysIos7Later] && !_isUseZXingLib )
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[_scanNativeObj changeTorch];
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else
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[_scanZXingObj openOrCloseTorch];
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}
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}
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/*!
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* 修改扫码类型
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*
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* @param objType 扫码类型
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*/
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- (void)changeScanObjType:(NSArray*)objType
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{
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if ( [LBXScanWrapper isSysIos7Later] && !_isUseZXingLib )
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{
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[_scanNativeObj changeScanType:objType];
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}
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}
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//识别图片上的二维码
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/*!
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* 识别各种码图片
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*
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* @param image 图像
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* @param block 返回识别结果
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*/
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+ (void)recognizeImage:(UIImage*)image success:(void(^)(NSArray<LBXScanResult*> *array))block;
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{
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__block UIImage* tmpImg = image;
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[ZXingWrapper recognizeImage:image block:^(ZXBarcodeFormat barCodeFormat,NSString* str)
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{
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NSString *barCodeType = [LBXScanWrapper convertZXBarcodeFormat:barCodeFormat];
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if (block) {
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LBXScanResult *result = [[LBXScanResult alloc]initWithScanString:str imgScan:tmpImg barCodeType:barCodeType];
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block(@[result]);
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}
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}];
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}
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#pragma mark- 震动、声音效果
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#define SOUNDID 1109 //1012 -iphone 1152 ipad 1109 ipad
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+ (void)systemVibrate
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{
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AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
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}
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+ (void)systemSound
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{
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AudioServicesPlaySystemSound(SOUNDID);
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}
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#pragma mark -相机、相册权限
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+ (BOOL)isGetCameraPermission
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{
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BOOL isCameraValid = YES;
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//ios7之前系统默认拥有权限
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if([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)
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{
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AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
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if (authStatus == AVAuthorizationStatusDenied)
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{
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isCameraValid = NO;
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}
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}
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return isCameraValid;
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}
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+ (BOOL)isGetPhotoPermission
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{
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if ([[[UIDevice currentDevice] systemVersion] floatValue] < 8.0)
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{
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ALAuthorizationStatus author = [ALAssetsLibrary authorizationStatus];
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if ( author == ALAuthorizationStatusDenied ) {
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return NO;
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}
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return YES;
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}
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PHAuthorizationStatus authorStatus = [PHPhotoLibrary authorizationStatus];
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if ( authorStatus == PHAuthorizationStatusDenied ) {
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return NO;
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}
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return YES;
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}
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+ (NSString*)convertZXBarcodeFormat:(ZXBarcodeFormat)barCodeFormat
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{
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NSString *strAVMetadataObjectType = nil;
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switch (barCodeFormat) {
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case kBarcodeFormatQRCode:
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strAVMetadataObjectType = AVMetadataObjectTypeQRCode;
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break;
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case kBarcodeFormatEan13:
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strAVMetadataObjectType = AVMetadataObjectTypeEAN13Code;
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break;
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case kBarcodeFormatEan8:
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strAVMetadataObjectType = AVMetadataObjectTypeEAN8Code;
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break;
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case kBarcodeFormatPDF417:
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strAVMetadataObjectType = AVMetadataObjectTypePDF417Code;
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break;
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case kBarcodeFormatAztec:
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strAVMetadataObjectType = AVMetadataObjectTypeAztecCode;
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break;
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case kBarcodeFormatCode39:
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strAVMetadataObjectType = AVMetadataObjectTypeCode39Code;
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break;
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case kBarcodeFormatCode93:
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strAVMetadataObjectType = AVMetadataObjectTypeCode93Code;
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break;
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case kBarcodeFormatCode128:
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strAVMetadataObjectType = AVMetadataObjectTypeCode128Code;
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break;
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case kBarcodeFormatDataMatrix:
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strAVMetadataObjectType = AVMetadataObjectTypeDataMatrixCode;
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break;
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case kBarcodeFormatITF:
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strAVMetadataObjectType = AVMetadataObjectTypeITF14Code;
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break;
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case kBarcodeFormatRSS14:
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break;
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case kBarcodeFormatRSSExpanded:
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break;
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case kBarcodeFormatUPCA:
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break;
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case kBarcodeFormatUPCE:
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strAVMetadataObjectType = AVMetadataObjectTypeUPCECode;
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break;
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default:
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break;
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}
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return strAVMetadataObjectType;
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}
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+ (ZXBarcodeFormat)convertCodeFomratToZXBarcodeFormat:(NSString*)strCodeType
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{
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if ([strCodeType isEqualToString:AVMetadataObjectTypeQRCode])
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{
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return kBarcodeFormatQRCode;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypeEAN13Code])
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{
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return kBarcodeFormatEan13;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypeEAN8Code])
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{
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return kBarcodeFormatEan8;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypePDF417Code])
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{
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return kBarcodeFormatPDF417;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypeAztecCode])
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{
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return kBarcodeFormatAztec;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypeCode39Code])
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{
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return kBarcodeFormatCode39;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypeCode93Code])
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{
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return kBarcodeFormatCode93;
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}
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//支付宝付款码条形码格式
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if ([strCodeType isEqualToString:AVMetadataObjectTypeCode128Code])
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{
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return kBarcodeFormatCode128;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypeDataMatrixCode])
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{
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return kBarcodeFormatDataMatrix;
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}
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if ([strCodeType isEqualToString:AVMetadataObjectTypeUPCECode])
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{
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return kBarcodeFormatUPCE;
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}
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return kBarcodeFormatQRCode;
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}
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#pragma mark -生成二维码
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/*!
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* 生成二维码
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*
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* @param str 二维码字符串
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* @param size 二维码图片大小
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*
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* @return 返回生成的图像
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*/
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+ (UIImage*)createQRWithString:(NSString*)str size:(CGSize)size
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{
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if ([LBXScanWrapper isSysIos7Later]) {
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return [LBXScanWrapper createNonInterpolatedUIImageFormCIImage:[LBXScanWrapper createQRForString:str] withSize:size.width];
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}
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else
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return [ZXingWrapper createCodeWithString:str size:size CodeFomart:kBarcodeFormatQRCode];
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}
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+ (UIImage*)createCodeWithString:(NSString*)str size:(CGSize)size CodeFomart:(NSString*)format
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{
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ZXBarcodeFormat zxformat = [LBXScanWrapper convertCodeFomratToZXBarcodeFormat:format];
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return [ZXingWrapper createCodeWithString:str size:size CodeFomart:zxformat];
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}
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/**
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@brief 图像中间加logo图片
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@param srcImg 原图像
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@param LogoImage logo图像
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@param logoSize logo图像尺寸
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@return 加Logo的图像
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*/
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+ (UIImage*)addImageLogo:(UIImage*)srcImg centerLogoImage:(UIImage*)LogoImage logoSize:(CGSize)logoSize
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{
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//UIGraphicsBeginImageContext(srcImg.size);
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UIGraphicsBeginImageContextWithOptions(srcImg.size, NO, [[UIScreen mainScreen] scale]);
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[srcImg drawInRect:CGRectMake(0, 0, srcImg.size.width, srcImg.size.height)];
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CGRect rect = CGRectMake(srcImg.size.width/2 - logoSize.width/2, srcImg.size.height/2-logoSize.height/2, logoSize.width, logoSize.height);
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[LogoImage drawInRect:rect];
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UIImage *resultingImage = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return resultingImage;
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}
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/**
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* 通过UIImageView形式添加Logo
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*
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* @param srcImgView 显示二维码的UIImageView
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* @param logoView logo的UIImageView
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* @param logoSize logo大小
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*/
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+ (void)addImageViewLogo:(UIImageView*)srcImgView centerLogoImageView:(UIImageView*)logoView logoSize:(CGSize)logoSize
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{
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logoView.center = srcImgView.center;
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logoView.bounds = CGRectMake(0, 0, logoSize.width, logoSize.height);
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[srcImgView addSubview:logoView];
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}
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#pragma mark --UIImage 圆角
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+ (UIImage *)roundedCornerImageWithCornerRadius:(CGFloat)cornerRadius srcImg:(UIImage*)srcImg
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{
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CGFloat w = srcImg.size.width;
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CGFloat h = srcImg.size.height;
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CGFloat scale = [UIScreen mainScreen].scale;
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// 防止圆角半径小于0，或者大于宽/高中较小值的一半。
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if (cornerRadius < 0)
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cornerRadius = 0;
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else if (cornerRadius > MIN(w, h))
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cornerRadius = MIN(w, h) / 2.;
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UIImage *image = nil;
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CGRect imageFrame = CGRectMake(0., 0., w, h);
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UIGraphicsBeginImageContextWithOptions(srcImg.size, NO, scale);
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[[UIBezierPath bezierPathWithRoundedRect:imageFrame cornerRadius:cornerRadius] addClip];
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[srcImg drawInRect:imageFrame];
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image = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return image;
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}
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//下面引用自 https://github.com/yourtion/Demo_CustomQRCode
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#pragma mark - InterpolatedUIImage
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+ (UIImage *)createNonInterpolatedUIImageFormCIImage:(CIImage *)image withSize:(CGFloat) size {
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CGRect extent = CGRectIntegral(image.extent);
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CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent));
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// 创建bitmap;
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size_t width = CGRectGetWidth(extent) * scale;
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size_t height = CGRectGetHeight(extent) * scale;
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CGColorSpaceRef cs = CGColorSpaceCreateDeviceGray();
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CGContextRef bitmapRef = CGBitmapContextCreate(nil, width, height, 8, 0, cs, (CGBitmapInfo)kCGImageAlphaNone);
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CGColorSpaceRelease(cs);
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CIContext *context = [CIContext contextWithOptions:nil];
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CGImageRef bitmapImage = [context createCGImage:image fromRect:extent];
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CGContextSetInterpolationQuality(bitmapRef, kCGInterpolationNone);
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CGContextScaleCTM(bitmapRef, scale, scale);
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CGContextDrawImage(bitmapRef, extent, bitmapImage);
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// 保存bitmap到图片
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CGImageRef scaledImage = CGBitmapContextCreateImage(bitmapRef);
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CGContextRelease(bitmapRef);
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CGImageRelease(bitmapImage);
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UIImage *aImage = [UIImage imageWithCGImage:scaledImage];
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CGImageRelease(scaledImage);
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return aImage;
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}
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#pragma mark - QRCodeGenerator
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+ (CIImage *)createQRForString:(NSString *)qrString {
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NSData *stringData = [qrString dataUsingEncoding:NSUTF8StringEncoding];
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// 创建filter
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CIFilter *qrFilter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
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// 设置内容和纠错级别
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[qrFilter setValue:stringData forKey:@"inputMessage"];
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[qrFilter setValue:@"H" forKey:@"inputCorrectionLevel"];
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// 返回CIImage
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return qrFilter.outputImage;
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}
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#pragma mark - imageToTransparent
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void ProviderReleaseData (void *info, const void *data, size_t size){
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free((void*)data);
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}
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+ (UIImage*)imageBlackToTransparent:(UIImage*)image withRed:(CGFloat)red andGreen:(CGFloat)green andBlue:(CGFloat)blue{
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const int imageWidth = image.size.width;
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const int imageHeight = image.size.height;
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size_t bytesPerRow = imageWidth * 4;
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uint32_t* rgbImageBuf = (uint32_t*)malloc(bytesPerRow * imageHeight);
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CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
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CGContextRef context = CGBitmapContextCreate(rgbImageBuf, imageWidth, imageHeight, 8, bytesPerRow, colorSpace,
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kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipLast);
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CGContextDrawImage(context, CGRectMake(0, 0, imageWidth, imageHeight), image.CGImage);
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// 遍历像素
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int pixelNum = imageWidth * imageHeight;
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uint32_t* pCurPtr = rgbImageBuf;
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for (int i = 0; i < pixelNum; i++, pCurPtr++){
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if ((*pCurPtr & 0xFFFFFF00) < 0x99999900) // 将白色变成透明
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{
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// 改成下面的代码，会将图片转成想要的颜色
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uint8_t* ptr = (uint8_t*)pCurPtr;
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ptr[3] = red; //0~255
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ptr[2] = green;
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ptr[1] = blue;
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}
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else
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{
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uint8_t* ptr = (uint8_t*)pCurPtr;
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ptr[0] = 0;
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}
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}
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// 输出图片
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CGDataProviderRef dataProvider = CGDataProviderCreateWithData(NULL, rgbImageBuf, bytesPerRow * imageHeight, ProviderReleaseData);
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CGImageRef imageRef = CGImageCreate(imageWidth, imageHeight, 8, 32, bytesPerRow, colorSpace,
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kCGImageAlphaLast | kCGBitmapByteOrder32Little, dataProvider,
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NULL, true, kCGRenderingIntentDefault);
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CGDataProviderRelease(dataProvider);
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UIImage* resultUIImage = [UIImage imageWithCGImage:imageRef];
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// 清理空间
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CGImageRelease(imageRef);
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CGContextRelease(context);
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CGColorSpaceRelease(colorSpace);
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return resultUIImage;
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}
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#pragma mark - 生成二维码，背景色及二维码颜色设置
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//引用自:http://www.jianshu.com/p/e8f7a257b612
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+ (UIImage*)createQRWithString:(NSString*)text QRSize:(CGSize)size QRColor:(UIColor*)qrColor bkColor:(UIColor*)bkColor
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{
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NSData *stringData = [text dataUsingEncoding: NSUTF8StringEncoding];
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//生成
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CIFilter *qrFilter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
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[qrFilter setValue:stringData forKey:@"inputMessage"];
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[qrFilter setValue:@"H" forKey:@"inputCorrectionLevel"];
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//上色
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CIFilter *colorFilter = [CIFilter filterWithName:@"CIFalseColor"
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keysAndValues:
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@"inputImage",qrFilter.outputImage,
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@"inputColor0",[CIColor colorWithCGColor:qrColor.CGColor],
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@"inputColor1",[CIColor colorWithCGColor:bkColor.CGColor],
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nil];
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CIImage *qrImage = colorFilter.outputImage;
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//绘制
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CGImageRef cgImage = [[CIContext contextWithOptions:nil] createCGImage:qrImage fromRect:qrImage.extent];
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UIGraphicsBeginImageContext(size);
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CGContextRef context = UIGraphicsGetCurrentContext();
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CGContextSetInterpolationQuality(context, kCGInterpolationNone);
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CGContextScaleCTM(context, 1.0, -1.0);
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CGContextDrawImage(context, CGContextGetClipBoundingBox(context), cgImage);
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UIImage *codeImage = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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CGImageRelease(cgImage);
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return codeImage;
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}
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|
|
/**
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@brief 获取摄像机最大拉远镜头
|
@return 放大系数
|
*/
|
- (CGFloat)getVideoMaxScale
|
{
|
if (self.scanNativeObj) {
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return [self.scanNativeObj getVideoMaxScale];
|
}
|
|
return 1.0;
|
}
|
|
/**
|
@brief 拉近拉远镜头
|
@param scale 系数
|
*/
|
- (void)setVideoScale:(CGFloat)scale
|
{
|
if (self.scanNativeObj) {
|
[self.scanNativeObj setVideoScale:scale];
|
}
|
}
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@end
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