From 6f73d1ecb4fe4a17220c10af8795bba3c6555363 Mon Sep 17 00:00:00 2001 From: BinBear <389294582@qq.com> Date: Sat, 22 Sep 2018 11:14:22 +0800 Subject: [PATCH 1/5] =?UTF-8?q?=E4=BF=AE=E6=94=B9C++=E5=85=BC=E5=AE=B9?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- LBXScan/LBXNative/LBXScanNative.h | 2 ++ LBXScan/LBXScanTypes.h | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/LBXScan/LBXNative/LBXScanNative.h b/LBXScan/LBXNative/LBXScanNative.h index 630c324..e7124fc 100644 --- a/LBXScan/LBXNative/LBXScanNative.h +++ b/LBXScan/LBXNative/LBXScanNative.h @@ -7,9 +7,11 @@ // +#ifndef __cplusplus @import UIKit; @import Foundation; @import AVFoundation; +#endif #import "LBXScanTypes.h" #define LBXScan_Define_Native diff --git a/LBXScan/LBXScanTypes.h b/LBXScan/LBXScanTypes.h index 32a460f..4e6cfd9 100644 --- a/LBXScan/LBXScanTypes.h +++ b/LBXScan/LBXScanTypes.h @@ -7,9 +7,11 @@ // +#ifndef __cplusplus @import UIKit; @import Foundation; - +@import AVFoundation; +#endif From 1f8041a290526300b2594135cdc837d2a6e469cb Mon Sep 17 00:00:00 2001 From: BinBear <389294582@qq.com> Date: Sat, 22 Sep 2018 11:16:28 +0800 Subject: [PATCH 2/5] =?UTF-8?q?=E4=BF=AE=E6=94=B9C++=E5=85=BC=E5=AE=B9?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- LBXScan/LBXScanTypes.h | 1 - 1 file changed, 1 deletion(-) diff --git a/LBXScan/LBXScanTypes.h b/LBXScan/LBXScanTypes.h index 4e6cfd9..b0aef9e 100644 --- a/LBXScan/LBXScanTypes.h +++ b/LBXScan/LBXScanTypes.h @@ -10,7 +10,6 @@ #ifndef __cplusplus @import UIKit; @import Foundation; -@import AVFoundation; #endif From a89bfec3ee1be0bc08f400ae07bdee6495e25dae Mon Sep 17 00:00:00 2001 From: BinBear <389294582@qq.com> Date: Mon, 21 Oct 2019 22:45:41 +0800 Subject: [PATCH 3/5] Update LBXScanNative.h --- LBXScan/LBXNative/LBXScanNative.h | 56 +++++-------------------------- 1 file changed, 8 insertions(+), 48 deletions(-) diff --git a/LBXScan/LBXNative/LBXScanNative.h b/LBXScan/LBXNative/LBXScanNative.h index e7124fc..f053aa6 100644 --- a/LBXScan/LBXNative/LBXScanNative.h +++ b/LBXScan/LBXNative/LBXScanNative.h @@ -17,14 +17,8 @@ #define LBXScan_Define_Native - - -/** - @brief ios系统自带扫码功能 - */ @interface LBXScanNative : NSObject - #pragma mark --初始化 /** @brief 初始化采集相机 @@ -101,49 +95,15 @@ - (void)setVideoScale:(CGFloat)scale; #pragma mark --识别图片 - - -/** - 识别QR二维码图片,ios8.0以上支持 - - @param image 图片 - @param block 返回识别结果 - */ +//! 识别QR二维码图片,ios8.0以上支持 + (void)recognizeImage:(UIImage*)image success:(void(^)(NSArray *array))block; -#pragma mark --生成条码 - - -/** - 生成QR二维码 - - @param text 字符串 - @param size 二维码大小 - @return 返回二维码图像 - */ -+ (UIImage*)createQRWithString:(NSString*)text QRSize:(CGSize)size; - - -/** - 生成QR二维码 - - @param text 字符串 - @param size 大小 - @param qrColor 二维码前景色 - @param bkColor 二维码背景色 - @return 二维码图像 - */ -+ (UIImage*)createQRWithString:(NSString*)text QRSize:(CGSize)size QRColor:(UIColor*)qrColor bkColor:(UIColor*)bkColor; - - -/** - 生成条形码 - - @param text 字符串 - @param size 大小 - @return 返回条码图像 - */ -+ (UIImage*)createBarCodeWithString:(NSString*)text QRSize:(CGSize)size; - +#pragma mark - 生成二维码/条形码 +//! 生成二维码 ++ (UIImage *)generateQRCode:(NSString *)code size:(CGSize)size; +//! 生成二维码+logo ++ (UIImage *)generateQRCode:(NSString *)code size:(CGSize)size logo:(nonnull UIImage *)logo; +//! 生成条形码 ++ (UIImage *)generateCode128:(NSString *)code size:(CGSize)size; @end From b7443e801fd16edab5a3b479408e83f32945fe95 Mon Sep 17 00:00:00 2001 From: BinBear <389294582@qq.com> Date: Mon, 21 Oct 2019 22:49:35 +0800 Subject: [PATCH 4/5] Update LBXScanNative.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 修改生成二维码 From 4d5bd51227a87463b61b9f90814b0f6c7ff86898 Mon Sep 17 00:00:00 2001 From: BinBear <389294582@qq.com> Date: Mon, 21 Oct 2019 22:51:25 +0800 Subject: [PATCH 5/5] Update LBXScanNative.m MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 修改 生成二维码 --- LBXScan/LBXNative/LBXScanNative.m | 438 +++++++++--------------------- 1 file changed, 132 insertions(+), 306 deletions(-) diff --git a/LBXScan/LBXNative/LBXScanNative.m b/LBXScan/LBXNative/LBXScanNative.m index d2849d3..45ac7ef 100644 --- a/LBXScan/LBXNative/LBXScanNative.m +++ b/LBXScan/LBXNative/LBXScanNative.m @@ -43,33 +43,26 @@ @interface LBXScanNative() @implementation LBXScanNative -- (void)setNeedCaptureImage:(BOOL)isNeedCaputureImg -{ +- (void)setNeedCaptureImage:(BOOL)isNeedCaputureImg{ _isNeedCaputureImage = isNeedCaputureImg; } - -- (instancetype)initWithPreView:(UIView*)preView ObjectType:(NSArray*)objType cropRect:(CGRect)cropRect success:(void(^)(NSArray *array))block -{ +- (instancetype)initWithPreView:(UIView*)preView ObjectType:(NSArray*)objType cropRect:(CGRect)cropRect success:(void(^)(NSArray *array))block{ if (self = [super init]) { [self initParaWithPreView:preView ObjectType:objType cropRect:cropRect success:block]; } return self; } -- (instancetype)initWithPreView:(UIView*)preView ObjectType:(NSArray*)objType success:(void(^)(NSArray *array))block -{ +- (instancetype)initWithPreView:(UIView*)preView ObjectType:(NSArray*)objType success:(void(^)(NSArray *array))block{ if (self = [super init]) { - [self initParaWithPreView:preView ObjectType:objType cropRect:CGRectZero success:block]; } - return self; } -- (void)initParaWithPreView:(UIView*)videoPreView ObjectType:(NSArray*)objType cropRect:(CGRect)cropRect success:(void(^)(NSArray *array))block -{ +- (void)initParaWithPreView:(UIView*)videoPreView ObjectType:(NSArray*)objType cropRect:(CGRect)cropRect success:(void(^)(NSArray *array))block{ self.arrayBarCodeType = objType; self.blockScanResult = block; self.videoPreView = videoPreView; @@ -82,27 +75,19 @@ - (void)initParaWithPreView:(UIView*)videoPreView ObjectType:(NSArray*)objType c // Input _input = [AVCaptureDeviceInput deviceInputWithDevice:self.device error:nil]; - if ( !_input ) - return ; - - + if ( !_input ){ + return; + } + bNeedScanResult = YES; - - // Output + _output = [[AVCaptureMetadataOutput alloc]init]; [_output setMetadataObjectsDelegate:self queue:dispatch_get_main_queue()]; - - if ( !CGRectEqualToRect(cropRect,CGRectZero) ) - { + if (!CGRectEqualToRect(cropRect,CGRectZero)){ _output.rectOfInterest = cropRect; } - - /* - // Setup the still image file output - */ -// AVCapturePhotoOutput - + _stillImageOutput = [[AVCaptureStillImageOutput alloc] init]; NSDictionary *outputSettings = [[NSDictionary alloc] initWithObjectsAndKeys: AVVideoCodecJPEG, AVVideoCodecKey, @@ -112,31 +97,19 @@ - (void)initParaWithPreView:(UIView*)videoPreView ObjectType:(NSArray*)objType c // Session _session = [[AVCaptureSession alloc]init]; [_session setSessionPreset:AVCaptureSessionPresetHigh]; - - // _session. - - // videoScaleAndCropFactor - - if ([_session canAddInput:_input]) - { + + if ([_session canAddInput:_input]){ [_session addInput:_input]; } - if ([_session canAddOutput:_output]) - { + if ([_session canAddOutput:_output]){ [_session addOutput:_output]; } - if ([_session canAddOutput:_stillImageOutput]) - { + if ([_session canAddOutput:_stillImageOutput]){ [_session addOutput:_stillImageOutput]; } - - - - - // 条码类型 AVMetadataObjectTypeQRCode - // _output.metadataObjectTypes =@[AVMetadataObjectTypeQRCode]; + if (!objType) { objType = [self defaultMetaDataObjectTypes]; @@ -148,52 +121,33 @@ - (void)initParaWithPreView:(UIView*)videoPreView ObjectType:(NSArray*)objType c _preview =[AVCaptureVideoPreviewLayer layerWithSession:_session]; _preview.videoGravity = AVLayerVideoGravityResizeAspectFill; - //_preview.frame =CGRectMake(20,110,280,280); - CGRect frame = videoPreView.frame; frame.origin = CGPointZero; _preview.frame = frame; [videoPreView.layer insertSublayer:self.preview atIndex:0]; - - - + AVCaptureConnection *videoConnection = [self connectionWithMediaType:AVMediaTypeVideo fromConnections:[[self stillImageOutput] connections]]; -// CGFloat maxScale = videoConnection.videoMaxScaleAndCropFactor; CGFloat scale = videoConnection.videoScaleAndCropFactor; - NSLog(@"%f",scale); -// CGFloat zoom = maxScale / 50; -// if (zoom < 1.0f || zoom > maxScale) -// { -// return; -// } -// videoConnection.videoScaleAndCropFactor += zoom; -// CGAffineTransform transform = videoPreView.transform; -// videoPreView.transform = CGAffineTransformScale(transform, zoom, zoom); - - //先进行判断是否支持控制对焦,不开启自动对焦功能，很难识别二维码。 - if (_device.isFocusPointOfInterestSupported &&[_device isFocusModeSupported:AVCaptureFocusModeAutoFocus]) - { + if (_device.isFocusPointOfInterestSupported && + [_device isFocusModeSupported:AVCaptureFocusModeAutoFocus]){ [_input.device lockForConfiguration:nil]; [_input.device setFocusMode:AVCaptureFocusModeContinuousAutoFocus]; [_input.device unlockForConfiguration]; } } -- (CGFloat)getVideoMaxScale -{ +- (CGFloat)getVideoMaxScale{ [_input.device lockForConfiguration:nil]; AVCaptureConnection *videoConnection = [self connectionWithMediaType:AVMediaTypeVideo fromConnections:[[self stillImageOutput] connections]]; CGFloat maxScale = videoConnection.videoMaxScaleAndCropFactor; [_input.device unlockForConfiguration]; - return maxScale; } -- (void)setVideoScale:(CGFloat)scale -{ +- (void)setVideoScale:(CGFloat)scale{ [_input.device lockForConfiguration:nil]; AVCaptureConnection *videoConnection = [self connectionWithMediaType:AVMediaTypeVideo fromConnections:[[self stillImageOutput] connections]]; @@ -209,65 +163,44 @@ - (void)setVideoScale:(CGFloat)scale _videoPreView.transform = CGAffineTransformScale(transform, zoom, zoom); } -- (void)setScanRect:(CGRect)scanRect -{ +- (void)setScanRect:(CGRect)scanRect{ //识别区域设置 if (_output) { _output.rectOfInterest = [self.preview metadataOutputRectOfInterestForRect:scanRect]; } - } -- (void)changeScanType:(NSArray*)objType -{ +- (void)changeScanType:(NSArray*)objType{ _output.metadataObjectTypes = objType; } -- (void)startScan -{ - if ( _input && !_session.isRunning ) - { +- (void)startScan{ + if ( _input && !_session.isRunning ){ [_session startRunning]; bNeedScanResult = YES; - [_videoPreView.layer insertSublayer:self.preview atIndex:0]; - - // [_input.device addObserver:self forKeyPath:@"torchMode" options:0 context:nil]; } bNeedScanResult = YES; } -- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context -{ - if ( object == _input.device ) { - - NSLog(@"flash change"); - } -} - -- (void)stopScan -{ +- (void)stopScan{ bNeedScanResult = NO; - if ( _input && _session.isRunning ) - { + if ( _input && _session.isRunning ){ bNeedScanResult = NO; [_session stopRunning]; - - // [self.preview removeFromSuperlayer]; } } - (void)setTorch:(BOOL)torch { - - [self.input.device lockForConfiguration:nil]; - self.input.device.torchMode = torch ? AVCaptureTorchModeOn : AVCaptureTorchModeOff; - [self.input.device unlockForConfiguration]; + if ([self.input.device hasFlash] && [self.input.device hasTorch]) { + [self.input.device lockForConfiguration:nil]; + self.input.device.torchMode = torch ? AVCaptureTorchModeOn : AVCaptureTorchModeOff; + [self.input.device unlockForConfiguration]; + } } -- (void)changeTorch -{ +- (void)changeTorch{ AVCaptureTorchMode torch = self.input.device.torchMode; - switch (_input.device.torchMode) { case AVCaptureTorchModeAuto: break; @@ -280,25 +213,12 @@ - (void)changeTorch default: break; } - [_input.device lockForConfiguration:nil]; _input.device.torchMode = torch; [_input.device unlockForConfiguration]; } - --(UIImage *)getImageFromLayer:(CALayer *)layer size:(CGSize)size -{ - UIGraphicsBeginImageContextWithOptions(size, YES, [[UIScreen mainScreen]scale]); - [layer renderInContext:UIGraphicsGetCurrentContext()]; - UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); - UIGraphicsEndImageContext(); - - return image; -} - -- (AVCaptureConnection *)connectionWithMediaType:(NSString *)mediaType fromConnections:(NSArray *)connections -{ +- (AVCaptureConnection *)connectionWithMediaType:(NSString *)mediaType fromConnections:(NSArray *)connections { for ( AVCaptureConnection *connection in connections ) { for ( AVCaptureInputPort *port in [connection inputPorts] ) { if ( [[port mediaType] isEqual:mediaType] ) { @@ -309,127 +229,75 @@ - (AVCaptureConnection *)connectionWithMediaType:(NSString *)mediaType fromConne return nil; } -- (void)captureImage -{ +- (void)captureImage{ AVCaptureConnection *stillImageConnection = [self connectionWithMediaType:AVMediaTypeVideo fromConnections:[[self stillImageOutput] connections]]; - - + __weak typeof(self) weakSelf = self; [[self stillImageOutput] captureStillImageAsynchronouslyFromConnection:stillImageConnection - completionHandler:^(CMSampleBufferRef imageDataSampleBuffer, NSError *error) - { - [self stopScan]; - - if (imageDataSampleBuffer) - { + completionHandler:^(CMSampleBufferRef imageDataSampleBuffer, NSError *error){ + [weakSelf stopScan]; + if (imageDataSampleBuffer){ NSData *imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageDataSampleBuffer]; - UIImage *img = [UIImage imageWithData:imageData]; - for (LBXScanResult* result in _arrayResult) { - result.imgScanned = img; } } - - if (_blockScanResult) - { + if (_blockScanResult){ _blockScanResult(_arrayResult); } - }]; } #pragma mark AVCaptureMetadataOutputObjectsDelegate -- (void)captureOutput2:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection -{ - - +- (void)captureOutput2:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection { //识别扫码类型 - for(AVMetadataObject *current in metadataObjects) - { - if ([current isKindOfClass:[AVMetadataMachineReadableCodeObject class]] ) - { - + for(AVMetadataObject *current in metadataObjects){ + if ([current isKindOfClass:[AVMetadataMachineReadableCodeObject class]] ){ NSString *scannedResult = [(AVMetadataMachineReadableCodeObject *) current stringValue]; - NSLog(@"type:%@",current.type); - NSLog(@"result:%@",scannedResult); - - - - - - //测试可以同时识别多个二维码 } } - - - } -- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection -{ +- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection{ if (!bNeedScanResult) { return; } - bNeedScanResult = NO; if (!_arrayResult) { - self.arrayResult = [NSMutableArray arrayWithCapacity:1]; - } - else - { + }else{ [_arrayResult removeAllObjects]; } - //识别扫码类型 - for(AVMetadataObject *current in metadataObjects) - { - if ([current isKindOfClass:[AVMetadataMachineReadableCodeObject class]] ) - { + for(AVMetadataObject *current in metadataObjects){ + if ([current isKindOfClass:[AVMetadataMachineReadableCodeObject class]]){ bNeedScanResult = NO; - - NSLog(@"type:%@",current.type); NSString *scannedResult = [(AVMetadataMachineReadableCodeObject *) current stringValue]; - if (scannedResult && ![scannedResult isEqualToString:@""]) - { + if (scannedResult && ![scannedResult isEqualToString:@""]) { LBXScanResult *result = [LBXScanResult new]; result.strScanned = scannedResult; result.strBarCodeType = current.type; [_arrayResult addObject:result]; } - //测试可以同时识别多个二维码 } } - - if (_arrayResult.count < 1) - { + if (_arrayResult.count < 1){ bNeedScanResult = YES; return; } - - if (_isNeedCaputureImage) - { + if (_isNeedCaputureImage){ [self captureImage]; - } - else - { + }else{ [self stopScan]; - if (_blockScanResult) { _blockScanResult(_arrayResult); } } } - -/** - @brief 默认支持码的类别 - @return 支持类别 数组 - */ - (NSArray *)defaultMetaDataObjectTypes { NSMutableArray *types = [@[AVMetadataObjectTypeQRCode, @@ -443,23 +311,18 @@ - (NSArray *)defaultMetaDataObjectTypes AVMetadataObjectTypePDF417Code, AVMetadataObjectTypeAztecCode] mutableCopy]; - if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_8_0) - { - [types addObjectsFromArray:@[ - AVMetadataObjectTypeInterleaved2of5Code, + if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_8_0){ + [types addObjectsFromArray:@[AVMetadataObjectTypeInterleaved2of5Code, AVMetadataObjectTypeITF14Code, - AVMetadataObjectTypeDataMatrixCode - ]]; + AVMetadataObjectTypeDataMatrixCode]]; } return types; } #pragma mark --识别条码图片 -+ (void)recognizeImage:(UIImage*)image success:(void(^)(NSArray *array))block; -{ - if ([[[UIDevice currentDevice]systemVersion]floatValue] < 8.0 ) - { ++ (void)recognizeImage:(UIImage*)image success:(void(^)(NSArray *array))block { + if ([[[UIDevice currentDevice]systemVersion]floatValue] < 8.0 || !image){ if (block) { LBXScanResult *result = [[LBXScanResult alloc]init]; result.strScanned = @"只支持ios8.0之后系统"; @@ -471,151 +334,114 @@ + (void)recognizeImage:(UIImage*)image success:(void(^)(NSArray CIDetector*detector = [CIDetector detectorOfType:CIDetectorTypeQRCode context:nil options:@{ CIDetectorAccuracy : CIDetectorAccuracyHigh }]; NSArray *features = [detector featuresInImage:[CIImage imageWithCGImage:image.CGImage]]; NSMutableArray *mutableArray = [[NSMutableArray alloc]initWithCapacity:1]; - for (int index = 0; index < [features count]; index ++) - { - CIQRCodeFeature *feature = [features objectAtIndex:index]; - NSString *scannedResult = feature.messageString; - NSLog(@"result:%@",scannedResult); - - LBXScanResult *item = [[LBXScanResult alloc]init]; - item.strScanned = scannedResult; - item.strBarCodeType = CIDetectorTypeQRCode; - item.imgScanned = image; - [mutableArray addObject:item]; + if (features.count > 0) { + for (CIQRCodeFeature *feature in features) { + NSString *scannedResult = feature.messageString; + LBXScanResult *item = [[LBXScanResult alloc]init]; + item.strScanned = scannedResult; + item.strBarCodeType = CIDetectorTypeQRCode; + item.imgScanned = image; + [mutableArray addObject:item]; + } } if (block) { block(mutableArray); } } -#pragma mark --生成条码 - -//下面引用自 https://github.com/yourtion/Demo_CustomQRCode -#pragma mark - InterpolatedUIImage -+ (UIImage *)createNonInterpolatedUIImageFormCIImage:(CIImage *)image withSize:(CGFloat) size { - CGRect extent = CGRectIntegral(image.extent); - CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent)); - // 创建bitmap; - size_t width = CGRectGetWidth(extent) * scale; - size_t height = CGRectGetHeight(extent) * scale; - CGColorSpaceRef cs = CGColorSpaceCreateDeviceGray(); - CGContextRef bitmapRef = CGBitmapContextCreate(nil, width, height, 8, 0, cs, (CGBitmapInfo)kCGImageAlphaNone); - CGColorSpaceRelease(cs); - CIContext *context = [CIContext contextWithOptions:nil]; - CGImageRef bitmapImage = [context createCGImage:image fromRect:extent]; - CGContextSetInterpolationQuality(bitmapRef, kCGInterpolationNone); - CGContextScaleCTM(bitmapRef, scale, scale); - CGContextDrawImage(bitmapRef, extent, bitmapImage); - // 保存bitmap到图片 - CGImageRef scaledImage = CGBitmapContextCreateImage(bitmapRef); - CGContextRelease(bitmapRef); - CGImageRelease(bitmapImage); - UIImage *aImage = [UIImage imageWithCGImage:scaledImage]; - CGImageRelease(scaledImage); - return aImage; -} -#pragma mark - QRCodeGenerator -+ (CIImage *)createQRForString:(NSString *)qrString { - NSData *stringData = [qrString dataUsingEncoding:NSUTF8StringEncoding]; - // 创建filter - CIFilter *qrFilter = [CIFilter filterWithName:@"CIQRCodeGenerator"]; - // 设置内容和纠错级别 - [qrFilter setValue:stringData forKey:@"inputMessage"]; - [qrFilter setValue:@"H" forKey:@"inputCorrectionLevel"]; - // 返回CIImage - return qrFilter.outputImage; +#pragma mark - 生成二维码/条形码 +//! 生成二维码 ++ (UIImage *)generateQRCode:(NSString *)code size:(CGSize)size { + + NSData *codeData = [code dataUsingEncoding:NSUTF8StringEncoding]; + CIFilter *filter = [CIFilter filterWithName:@"CIQRCodeGenerator" withInputParameters:@{@"inputMessage": codeData, @"inputCorrectionLevel": @"H"}]; + UIImage *codeImage = [LBXScanNative scaleImage:filter.outputImage toSize:size]; + + return codeImage; } - -#pragma mark - 生成二维码，背景色及二维码颜色设置 -+ (UIImage*)createQRWithString:(NSString*)text QRSize:(CGSize)size -{ - NSData *stringData = [text dataUsingEncoding: NSUTF8StringEncoding]; - - //生成 - CIFilter *qrFilter = [CIFilter filterWithName:@"CIQRCodeGenerator"]; - [qrFilter setValue:stringData forKey:@"inputMessage"]; - [qrFilter setValue:@"H" forKey:@"inputCorrectionLevel"]; - - CIImage *qrImage = qrFilter.outputImage; - - //绘制 - CGImageRef cgImage = [[CIContext contextWithOptions:nil] createCGImage:qrImage fromRect:qrImage.extent]; - UIGraphicsBeginImageContext(size); - CGContextRef context = UIGraphicsGetCurrentContext(); - CGContextSetInterpolationQuality(context, kCGInterpolationNone); - CGContextScaleCTM(context, 1.0, -1.0); - CGContextDrawImage(context, CGContextGetClipBoundingBox(context), cgImage); - UIImage *codeImage = UIGraphicsGetImageFromCurrentImageContext(); - UIGraphicsEndImageContext(); +//! 生成二维码+logo ++ (UIImage *)generateQRCode:(NSString *)code size:(CGSize)size logo:(nonnull UIImage *)logo { - CGImageRelease(cgImage); + UIImage *codeImage = [LBXScanNative generateQRCode:code size:size]; + codeImage = [LBXScanNative combinateCodeImage:codeImage andLogo:logo]; return codeImage; } -//引用自:http://www.jianshu.com/p/e8f7a257b612 -+ (UIImage*)createQRWithString:(NSString*)text QRSize:(CGSize)size QRColor:(UIColor*)qrColor bkColor:(UIColor*)bkColor -{ +//! 生成条形码 ++ (UIImage *)generateCode128:(NSString *)code size:(CGSize)size { - NSData *stringData = [text dataUsingEncoding: NSUTF8StringEncoding]; + NSData *codeData = [code dataUsingEncoding:NSUTF8StringEncoding]; + CIFilter *filter = [CIFilter filterWithName:@"CICode128BarcodeGenerator" withInputParameters:@{@"inputMessage": codeData, @"inputQuietSpace": @.0}]; + UIImage *codeImage = [LBXScanNative scaleImage:filter.outputImage toSize:size]; - //生成 - CIFilter *qrFilter = [CIFilter filterWithName:@"CIQRCodeGenerator"]; - [qrFilter setValue:stringData forKey:@"inputMessage"]; - [qrFilter setValue:@"H" forKey:@"inputCorrectionLevel"]; + return codeImage; +} + + +#pragma mark - Util functions +// 缩放图片(生成高质量图片） ++ (UIImage *)scaleImage:(CIImage *)image toSize:(CGSize)size { + //! 将CIImage转成CGImageRef + CGRect integralRect = image.extent;// CGRectIntegral(image.extent);// 将rect取整后返回，origin取舍，size取入 + CGImageRef imageRef = [[CIContext context] createCGImage:image fromRect:integralRect]; - //上色 - CIFilter *colorFilter = [CIFilter filterWithName:@"CIFalseColor" - keysAndValues: - @"inputImage",qrFilter.outputImage, - @"inputColor0",[CIColor colorWithCGColor:qrColor.CGColor], - @"inputColor1",[CIColor colorWithCGColor:bkColor.CGColor], - nil]; + //! 创建上下文 + CGFloat sideScale = fminf(size.width / integralRect.size.width, size.width / integralRect.size.height) * [UIScreen mainScreen].scale;// 计算需要缩放的比例 + size_t contextRefWidth = ceilf(integralRect.size.width * sideScale); + size_t contextRefHeight = ceilf(integralRect.size.height * sideScale); + CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceGray(); + CGContextRef contextRef = CGBitmapContextCreate(nil, contextRefWidth, contextRefHeight, 8, 0, colorSpaceRef, (CGBitmapInfo)kCGImageAlphaNone);// 灰度、不透明 + CGColorSpaceRelease(colorSpaceRef); - CIImage *qrImage = colorFilter.outputImage; + CGContextSetInterpolationQuality(contextRef, kCGInterpolationNone);// 设置上下文无插值 + CGContextScaleCTM(contextRef, sideScale, sideScale);// 设置上下文缩放 + CGContextDrawImage(contextRef, integralRect, imageRef);// 在上下文中的integralRect中绘制imageRef + CGImageRelease(imageRef); - //绘制 - CGImageRef cgImage = [[CIContext contextWithOptions:nil] createCGImage:qrImage fromRect:qrImage.extent]; - UIGraphicsBeginImageContext(size); - CGContextRef context = UIGraphicsGetCurrentContext(); - CGContextSetInterpolationQuality(context, kCGInterpolationNone); - CGContextScaleCTM(context, 1.0, -1.0); - CGContextDrawImage(context, CGContextGetClipBoundingBox(context), cgImage); - UIImage *codeImage = UIGraphicsGetImageFromCurrentImageContext(); - UIGraphicsEndImageContext(); + //! 从上下文中获取CGImageRef + CGImageRef scaledImageRef = CGBitmapContextCreateImage(contextRef); + CGContextRelease(contextRef); - CGImageRelease(cgImage); + //! 将CGImageRefc转成UIImage + UIImage *scaledImage = [UIImage imageWithCGImage:scaledImageRef scale:[UIScreen mainScreen].scale orientation:UIImageOrientationUp]; + CGImageRelease(scaledImageRef); - return codeImage; + return scaledImage; } -+ (UIImage*)createBarCodeWithString:(NSString*)text QRSize:(CGSize)size -{ - - NSData *data = [text dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:false]; +// 合成图片（code+logo） ++ (UIImage *)combinateCodeImage:(UIImage *)codeImage andLogo:(UIImage *)logo { - CIFilter *filter = [CIFilter filterWithName:@"CICode128BarcodeGenerator"]; + UIGraphicsBeginImageContextWithOptions(codeImage.size, YES, [UIScreen mainScreen].scale); - [filter setValue:data forKey:@"inputMessage"]; + // 将codeImage画到上下文中 + [codeImage drawInRect:(CGRect){.0, .0, codeImage.size.width, codeImage.size.height}]; - CIImage *barcodeImage = [filter outputImage]; + // 定义logo的绘制参数 + CGFloat logoSide = fminf(codeImage.size.width, codeImage.size.height) / 4; + CGFloat logoX = (codeImage.size.width - logoSide) / 2; + CGFloat logoY = (codeImage.size.height - logoSide) / 2; + CGRect logoRect = (CGRect){logoX, logoY, logoSide, logoSide}; + UIBezierPath *cornerPath = [UIBezierPath bezierPathWithRoundedRect:logoRect cornerRadius:logoSide / 5]; + [cornerPath setLineWidth:2.0]; + [[UIColor whiteColor] set]; + [cornerPath stroke]; + [cornerPath addClip]; - // 消除模糊 + // 将logo画到上下文中 + [logo drawInRect:logoRect]; - CGFloat scaleX = size.width / barcodeImage.extent.size.width; // extent 返回图片的frame + // 从上下文中读取image + codeImage = UIGraphicsGetImageFromCurrentImageContext(); - CGFloat scaleY = size.height / barcodeImage.extent.size.height; - - CIImage *transformedImage = [barcodeImage imageByApplyingTransform:CGAffineTransformScale(CGAffineTransformIdentity, scaleX, scaleY)]; - - return [UIImage imageWithCIImage:transformedImage]; + UIGraphicsEndImageContext(); + return codeImage; } - - @end