wordpress主题dux 5.1,太原百度快照优化排名,快速提升网站排名,做网站比较好的公司上次是根据系统的属性自己封装的一个二维码扫描#xff0c;这次给大家介绍一下基于ZBar集成的类似于QQ二维码扫描界面的二维码扫描的效果。 最下方配有效果图哦#xff01; 首先#xff0c;需要引入ZBar第三方库文件#xff1a; ZBarSDK libqrencode 其次#xff0c;利用Z…上次是根据系统的属性自己封装的一个二维码扫描这次给大家介绍一下基于ZBar集成的类似于QQ二维码扫描界面的二维码扫描的效果。 最下方配有效果图哦 首先需要引入ZBar第三方库文件 ZBarSDK libqrencode 其次利用ZBar集成二维码扫描需要引入的类库有 libiconv.tbd QuartzCore.framework CoreVideo.framework CoreMedia.framework AVFoundation.framework 代码实现 -(void)createView{ //扫描页的背景图片 UIImageView*bgImageView; if (self.view.frame.size.height500) { UIImage*image [UIImage imageNamed:qrcode_scan_bg_Green.png]; bgImageView[[UIImageView alloc]initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height-64-100)]; bgImageView.contentModeUIViewContentModeTop; bgImageView.clipsToBoundsYES; bgImageView.imageimage; bgImageView.userInteractionEnabledYES; }else if(self.view.frame.size.height600){ UIImage*image [UIImage imageNamed:qrcode_scan_bg_Green_iphone5]; bgImageView[[UIImageView alloc]initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height-64-100)]; bgImageView.contentModeUIViewContentModeTop; bgImageView.clipsToBoundsYES; bgImageView.imageimage; bgImageView.userInteractionEnabledYES; } else if(self.view.frame.size.height680){ UIImage*image [UIImage imageNamed:qrcode_scan_bg_Green_iphone6]; bgImageView[[UIImageView alloc]initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height-64-100)]; bgImageView.contentModeUIViewContentModeTop; bgImageView.clipsToBoundsYES; bgImageView.imageimage; bgImageView.userInteractionEnabledYES; } else{ UIImage*image [UIImage imageNamed:qrcode_scan_bg_Green_iphone6p]; bgImageView[[UIImageView alloc]initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height-64-100)]; bgImageView.contentModeUIViewContentModeTop; bgImageView.clipsToBoundsYES; bgImageView.imageimage; bgImageView.userInteractionEnabledYES; } [self.view addSubview:bgImageView]; //扫描框下面的提示语 if (self.view.frame.size.height600) { UILabel * label [[UILabel alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height-200, self.view.frame.size.width, 40)]; label.text 将取景框对准二维码即可自动扫描。; label.font[UIFont systemFontOfSize:12]; label.textColor [UIColor whiteColor]; label.textAlignment NSTextAlignmentCenter; label.lineBreakMode NSLineBreakByWordWrapping; label.numberOfLines 2; label.backgroundColor [UIColor clearColor]; [bgImageView addSubview:label]; }else{ UILabel * label [[UILabel alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height-300, self.view.frame.size.width, 40)]; label.text 将取景框对准二维码即可自动扫描。; label.font[UIFont systemFontOfSize:17]; label.textColor [UIColor whiteColor]; label.textAlignment NSTextAlignmentCenter; label.lineBreakMode NSLineBreakByWordWrapping; label.numberOfLines 2; label.backgroundColor [UIColor clearColor]; [bgImageView addSubview:label]; } //初始化扫描线 //4s/5/5s if (self.view.frame.size.height600) { _line [[UIImageView alloc] initWithFrame:CGRectMake(self.view.frame.size.width/5.8, 50, 220, 2)]; } else{ //6/6s/6p _line [[UIImageView alloc] initWithFrame:CGRectMake(self.view.frame.size.width/4.6, 50, 220, 2)]; } _line.image [UIImage imageNamed:qrcode_scan_light_green.png]; [bgImageView addSubview:_line]; //下方相册 UIImageView*scanImageView[[UIImageView alloc]initWithFrame:CGRectMake(0, bgImageView.frame.size.height64, self.view.frame.size.width, 100)]; scanImageView.image[UIImage imageNamed:qrcode_scan_bar.png]; scanImageView.userInteractionEnabledYES; [self.view addSubview:scanImageView]; NSArray*unSelectImageNames[qrcode_scan_btn_photo_nor.png,qrcode_scan_btn_flash_nor.png,qrcode_scan_btn_myqrcode_nor.png]; NSArray*selectImageNames[qrcode_scan_btn_photo_down.png,qrcode_scan_btn_flash_down.png,qrcode_scan_btn_myqrcode_down.png]; for (int i0; iunSelectImageNames.count; i) { UIButton*button[UIButton buttonWithType:UIButtonTypeCustom]; [button setImage:[UIImage imageNamed:unSelectImageNames[i]] forState:UIControlStateNormal]; [button setImage:[UIImage imageNamed:selectImageNames[i]] forState:UIControlStateHighlighted]; button.frameCGRectMake(self.view.frame.size.width/3*i, 0, self.view.frame.size.width/3, 100); [scanImageView addSubview:button]; if (i0) { [button addTarget:self action:selector(pressPhotoLibraryButton:) forControlEvents:UIControlEventTouchUpInside]; } if (i1) { [button addTarget:self action:selector(flashLightClick) forControlEvents:UIControlEventTouchUpInside]; } if (i2) { button.hiddenYES; } } //假导航 UIImageView*navImageView[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 64)]; navImageView.image[UIImage imageNamed:qrcode_scan_bar.png]; navImageView.userInteractionEnabledYES; [self.view addSubview:navImageView]; UILabel*titleLabel[[UILabel alloc]initWithFrame:CGRectMake(self.view.frame.size.width/2-32,20 , 64, 44)]; titleLabel.textColor[UIColor whiteColor]; titleLabel.text扫一扫; [navImageView addSubview:titleLabel]; //返回按钮 UIButton*button [UIButton buttonWithType:UIButtonTypeCustom]; [button setImage:[UIImage imageNamed:qrcode_scan_titlebar_back_pressed2x.png] forState:UIControlStateHighlighted]; [button setImage:[UIImage imageNamed:qrcode_scan_titlebar_back_nor.png] forState:UIControlStateNormal]; [button setFrame:CGRectMake(10,15, 48, 48)]; [button addTarget:self action:selector(pressCancelButton:) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:button]; timer [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:selector(animation1) userInfo:nil repeats:YES]; } //扫描线的动画效果 -(void)animation1 { [UIView animateWithDuration:2 animations:^{ if (self.view.frame.size.height600) { _line.frame CGRectMake(self.view.frame.size.width/5.8, self.view.frame.size.height/43*22, 220, 2); }else{ _line.frame CGRectMake(self.view.frame.size.width/4.6, self.view.frame.size.height/43*22, 220, 2); } }completion:^(BOOL finished) { [UIView animateWithDuration:2 animations:^{ if (self.view.frame.size.height600) { _line.frame CGRectMake(self.view.frame.size.width/5.8, 50, 220, 2); } else{ _line.frame CGRectMake(self.view.frame.size.width/5.8, 50, 220, 2); } }]; }]; } //开启关闭闪光灯 -(void)flashLightClick{ AVCaptureDevice * device [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo]; if (device.torchModeAVCaptureTorchModeOff) { //闪光灯开启 [device lockForConfiguration:nil]; [device setTorchMode:AVCaptureTorchModeOn]; }else { //闪光灯关闭 [device setTorchMode:AVCaptureTorchModeOff]; } } - (void)viewDidLoad { //相机界面的定制在self.view上加载即可 BOOL Custom [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera];//判断摄像头是否能用 if (Custom) { [self initCapture];//启动摄像头 } [self createView]; [super viewDidLoad]; } #pragma mark 选择相册 - (void)pressPhotoLibraryButton:(UIButton *)button { if (timer) { [timer invalidate]; timernil; } _line.frame CGRectMake(50, 50, 220, 2); num 0; upOrdown NO; UIImagePickerController *picker [[UIImagePickerController alloc] init]; picker.allowsEditing YES; picker.delegate self; picker.sourceType UIImagePickerControllerSourceTypePhotoLibrary; [self presentViewController:picker animated:YES completion:^{ self.isScanning NO; [self.captureSession stopRunning]; }]; } #pragma mark 点击取消 - (void)pressCancelButton:(UIButton *)button { self.isScanning NO; [self.captureSession stopRunning]; self.ScanResult(nil,NO); if (timer) { [timer invalidate]; timernil; } _line.frame CGRectMake(50, 50, 220, 2); num 0; upOrdown NO; [self dismissViewControllerAnimated:YES completion:nil]; } #pragma mark 开启相机 - (void)initCapture { self.captureSession [[AVCaptureSession alloc] init]; AVCaptureDevice* inputDevice [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo]; AVCaptureDeviceInput *captureInput [AVCaptureDeviceInput deviceInputWithDevice:inputDevice error:nil]; [self.captureSession addInput:captureInput]; AVCaptureVideoDataOutput *captureOutput [[AVCaptureVideoDataOutput alloc] init]; captureOutput.alwaysDiscardsLateVideoFrames YES; if (IOS7) { AVCaptureMetadataOutput*_output[[AVCaptureMetadataOutput alloc]init]; [_output setMetadataObjectsDelegate:self queue:dispatch_get_main_queue()]; [self.captureSession setSessionPreset:AVCaptureSessionPresetHigh]; [self.captureSession addOutput:_output]; _output.metadataObjectTypes [AVMetadataObjectTypeQRCode]; if (!self.captureVideoPreviewLayer) { self.captureVideoPreviewLayer [AVCaptureVideoPreviewLayer layerWithSession:self.captureSession]; } // NSLog(prev %p %, self.prevLayer, self.prevLayer); self.captureVideoPreviewLayer.frame self.view.bounds; self.captureVideoPreviewLayer.videoGravity AVLayerVideoGravityResizeAspectFill; [self.view.layer addSublayer: self.captureVideoPreviewLayer]; self.isScanning YES; [self.captureSession startRunning]; }else{ [captureOutput setSampleBufferDelegate:self queue:dispatch_get_main_queue()]; NSString* key (NSString *)kCVPixelBufferPixelFormatTypeKey; NSNumber* value [NSNumber numberWithUnsignedInt:kCVPixelFormatType_32BGRA]; NSDictionary *videoSettings [NSDictionary dictionaryWithObject:value forKey:key]; [captureOutput setVideoSettings:videoSettings]; [self.captureSession addOutput:captureOutput]; NSString* preset 0; if (NSClassFromString(NSOrderedSet) // Proxy for is this iOS 5 ... [UIScreen mainScreen].scale 1 [inputDevice supportsAVCaptureSessionPreset:AVCaptureSessionPresetiFrame960x540]) { // NSLog(960); preset AVCaptureSessionPresetiFrame960x540; } if (!preset) { // NSLog(MED); preset AVCaptureSessionPresetMedium; } self.captureSession.sessionPreset preset; if (!self.captureVideoPreviewLayer) { self.captureVideoPreviewLayer [AVCaptureVideoPreviewLayer layerWithSession:self.captureSession]; } // NSLog(prev %p %, self.prevLayer, self.prevLayer); self.captureVideoPreviewLayer.frame self.view.bounds; self.captureVideoPreviewLayer.videoGravity AVLayerVideoGravityResizeAspectFill; [self.view.layer addSublayer: self.captureVideoPreviewLayer]; self.isScanning YES; [self.captureSession startRunning]; } } - (UIImage *) imageFromSampleBuffer:(CMSampleBufferRef) sampleBuffer { CVImageBufferRef imageBuffer CMSampleBufferGetImageBuffer(sampleBuffer); // Lock the base address of the pixel buffer CVPixelBufferLockBaseAddress(imageBuffer,0); // Get the number of bytes per row for the pixel buffer size_t bytesPerRow CVPixelBufferGetBytesPerRow(imageBuffer); // Get the pixel buffer width and height size_t width CVPixelBufferGetWidth(imageBuffer); size_t height CVPixelBufferGetHeight(imageBuffer); // Create a device-dependent RGB color space CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB(); if (!colorSpace) { NSLog(CGColorSpaceCreateDeviceRGB failure); return nil; } // Get the base address of the pixel buffer void *baseAddress CVPixelBufferGetBaseAddress(imageBuffer); // Get the data size for contiguous planes of the pixel buffer. size_t bufferSize CVPixelBufferGetDataSize(imageBuffer); // Create a Quartz direct-access data provider that uses data we supply CGDataProviderRef provider CGDataProviderCreateWithData(NULL, baseAddress, bufferSize,NULL); // Create a bitmap image from data supplied by our data provider CGImageRef cgImage CGImageCreate(width,height,8,32,bytesPerRow,colorSpace,kCGImageAlphaNoneSkipFirst |kCGBitmapByteOrder32Little,provider,NULL,true,kCGRenderingIntentDefault); CGDataProviderRelease(provider); CGColorSpaceRelease(colorSpace); // Create and return an image object representing the specified Quartz image UIImage *image [UIImage imageWithCGImage:cgImage]; return image; } #pragma mark 对图像进行解码 - (void)decodeImage:(UIImage *)image { self.isScanning NO; ZBarSymbol *symbol nil; ZBarReaderController* read [ZBarReaderController new]; read.readerDelegate self; CGImageRef cgImageRef image.CGImage; for(symbol in [read scanImage:cgImageRef])break; if (symbol!nil) { if (timer) { [timer invalidate]; timernil; } _line.frame CGRectMake(50, 50, 220, 2); num 0; upOrdown NO; self.ScanResult(symbol.data,YES); [self.captureSession stopRunning]; [self dismissViewControllerAnimated:YES completion:nil]; }else{ timer [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:selector(animation1) userInfo:nil repeats:YES]; num 0; upOrdown NO; self.isScanning YES; [self.captureSession startRunning]; } } #pragma mark - AVCaptureVideoDataOutputSampleBufferDelegate - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection { UIImage *image [self imageFromSampleBuffer:sampleBuffer]; [self decodeImage:image]; } #pragma mark AVCaptureMetadataOutputObjectsDelegate//IOS7下触发 - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection { if (metadataObjects.count0) { AVMetadataMachineReadableCodeObject * metadataObject [metadataObjects objectAtIndex:0]; self.ScanResult(metadataObject.stringValue,YES); } [self.captureSession stopRunning]; _line.frame CGRectMake(50, 50, 220, 2); num 0; upOrdown NO; [self dismissViewControllerAnimated:YES completion:nil]; } #pragma mark - UIImagePickerControllerDelegate - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { if (timer) { [timer invalidate]; timernil; } _line.frame CGRectMake(50, 50, 220, 2); num 0; upOrdown NO; UIImage *image [info objectForKey:UIImagePickerControllerEditedImage]; [self dismissViewControllerAnimated:YES completion:^{[self decodeImage:image];}]; } //相册取消 - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { if (timer) { [timer invalidate]; timernil; } _line.frame CGRectMake(50, 50, 220, 2); num 0; upOrdown NO; timer [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:selector(animation1) userInfo:nil repeats:YES]; [self dismissViewControllerAnimated:YES completion:^{ self.isScanning YES; [self.captureSession startRunning]; }]; } #pragma mark - DecoderDelegate (NSString*)zhengze:(NSString*)str { NSError *error; //http:[^\\s]* 这是检测网址的正则表达式 NSRegularExpression *regex [NSRegularExpression regularExpressionWithPattern:http:[^\\s]* options:0 error:error];//筛选 if (regex ! nil) { NSTextCheckingResult *firstMatch [regex firstMatchInString:str options:0 range:NSMakeRange(0, [str length])]; if (firstMatch) { NSRange resultRange [firstMatch rangeAtIndex:0]; //从urlString中截取数据 NSString *result1 [str substringWithRange:resultRange]; NSLog(正则表达后的结果%,result1); return result1; } } return nil; } 效果图 开灯可以打开系统的手电筒相册可以进入系统相册如果选择的图片中包含有二维码既可以自动扫描 如有问题可以评论提问有评必回 2015最后一天祝大家新年快乐记得给个赞哦^_^ 转载于:https://www.cnblogs.com/MasterPeng/p/5091630.html
