// // WLScanViewController.m // Siemens Home // // Created by Vitta on 2019/11/9. // #import "WLScanViewController.h" #import "LBXScanTypes.h" #import #import @interface WLScanViewController () @end @implementation WLScanViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. if ([self respondsToSelector:@selector(setEdgesForExtendedLayout:)]) { self.edgesForExtendedLayout = UIRectEdgeNone; } self.view.backgroundColor = [UIColor blackColor]; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; [self drawScanView]; [self requestCameraPemissionWithResult:^(BOOL granted) { if (granted) { //不延时，可能会导致界面黑屏并卡住一会 [self performSelector:@selector(startScan) withObject:nil afterDelay:0.3]; } }]; } //绘制扫描区域 - (void)drawScanView { } - (void)reStartDevice { [_scanObj startScan]; } - (CGRect)getPortraitModeScanCropRect:(CGRect)overlayCropRect forOverlayView:(UIView *)readerView { CGRect scanCropRect = CGRectMake(0, 0, 1, 1); /*default full screen*/ float x = (float) overlayCropRect.origin.x; float y = (float) overlayCropRect.origin.y; float width = (float) overlayCropRect.size.width; float height = (float) overlayCropRect.size.height; float A = (float) (y / readerView.bounds.size.height); float B = (float) (1 - (x + width) / readerView.bounds.size.width); float C = (float) ((y + height) / readerView.bounds.size.height); float D = (float) (1 - x / readerView.bounds.size.width); scanCropRect = CGRectMake(A, B, C, D); return scanCropRect; } //启动设备 - (void)startScan { UIView *videoView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.frame), CGRectGetHeight(self.view.frame))]; videoView.backgroundColor = [UIColor clearColor]; [self.view insertSubview:videoView atIndex:0]; if (!_scanObj) { NSString *strCode = AVMetadataObjectTypeQRCode; if (_scanCodeType != SCT_BarCodeITF) { strCode = [self nativeCodeWithType:_scanCodeType]; } __weak __typeof(self) weakSelf = self; self.scanObj = [[LBXScanNative alloc] initWithPreView:videoView ObjectType:@[strCode] cropRect:self.cropRect success:^(NSArray *array) { [weakSelf scanResultWithArray:array]; }]; } [_scanObj startScan]; self.view.backgroundColor = [UIColor clearColor]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; [NSObject cancelPreviousPerformRequestsWithTarget:self]; [self stopScan]; } - (void)stopScan { [_scanObj stopScan]; } #pragma mark -扫码结果处理 - (void)scanResultWithArray:(NSArray *)array { //设置了委托的处理 if (_delegate) { [_delegate scanResultWithArray:array]; } //也可以通过继承LBXScanViewController，重写本方法即可 } //开关闪光灯 - (void)openOrCloseFlash { switch (_libraryType) { case SLT_Native: { #ifdef LBXScan_Define_Native [_scanObj changeTorch]; #endif } break; case SLT_ZXing: { #ifdef LBXScan_Define_ZXing [_zxingObj openOrCloseTorch]; #endif } break; case SLT_ZBar: { #ifdef LBXScan_Define_ZBar [_zbarObj openOrCloseFlash]; #endif } break; default: break; } self.isOpenFlash = !self.isOpenFlash; } #pragma mark --打开相册并识别图片 /*! * 打开本地照片，选择图片识别 */ - (void)openLocalPhoto:(BOOL)allowsEditing { UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; picker.delegate = self; //部分机型有问题 picker.allowsEditing = allowsEditing; [self presentViewController:picker animated:YES completion:nil]; } //当选择一张图片后进入这里 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissViewControllerAnimated:YES completion:nil]; __block UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage]; if (!image) { image = [info objectForKey:UIImagePickerControllerOriginalImage]; } __weak __typeof(self) weakSelf = self; switch (_libraryType) { case SLT_Native: { #ifdef LBXScan_Define_Native if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) { [LBXScanNative recognizeImage:image success:^(NSArray *array) { [weakSelf scanResultWithArray:array]; }]; } else { [self showError:@"native低于ios8.0系统不支持识别图片条码"]; } #endif } break; case SLT_ZXing: { #ifdef LBXScan_Define_ZXing [ZXingWrapper recognizeImage:image block:^(ZXBarcodeFormat barcodeFormat, NSString *str) { LBXScanResult *result = [[LBXScanResult alloc]init]; result.strScanned = str; result.imgScanned = image; result.strBarCodeType = [self convertZXBarcodeFormat:barcodeFormat]; [weakSelf scanResultWithArray:@[result]]; }]; #endif } break; case SLT_ZBar: { #ifdef LBXScan_Define_ZBar [LBXZBarWrapper recognizeImage:image block:^(NSArray *result) { //测试，只使用扫码结果第一项 LBXZbarResult *firstObj = result[0]; LBXScanResult *scanResult = [[LBXScanResult alloc]init]; scanResult.strScanned = firstObj.strScanned; scanResult.imgScanned = firstObj.imgScanned; scanResult.strBarCodeType = [LBXZBarWrapper convertFormat2String:firstObj.format]; [weakSelf scanResultWithArray:@[scanResult]]; }]; #endif } break; default: break; } } - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { NSLog(@"cancel"); [picker dismissViewControllerAnimated:YES completion:nil]; } #ifdef LBXScan_Define_ZXing - (NSString*)convertZXBarcodeFormat:(ZXBarcodeFormat)barCodeFormat { NSString *strAVMetadataObjectType = nil; switch (barCodeFormat) { case kBarcodeFormatQRCode: strAVMetadataObjectType = AVMetadataObjectTypeQRCode; break; case kBarcodeFormatEan13: strAVMetadataObjectType = AVMetadataObjectTypeEAN13Code; break; case kBarcodeFormatEan8: strAVMetadataObjectType = AVMetadataObjectTypeEAN8Code; break; case kBarcodeFormatPDF417: strAVMetadataObjectType = AVMetadataObjectTypePDF417Code; break; case kBarcodeFormatAztec: strAVMetadataObjectType = AVMetadataObjectTypeAztecCode; break; case kBarcodeFormatCode39: strAVMetadataObjectType = AVMetadataObjectTypeCode39Code; break; case kBarcodeFormatCode93: strAVMetadataObjectType = AVMetadataObjectTypeCode93Code; break; case kBarcodeFormatCode128: strAVMetadataObjectType = AVMetadataObjectTypeCode128Code; break; case kBarcodeFormatDataMatrix: strAVMetadataObjectType = AVMetadataObjectTypeDataMatrixCode; break; case kBarcodeFormatITF: strAVMetadataObjectType = AVMetadataObjectTypeITF14Code; break; case kBarcodeFormatRSS14: break; case kBarcodeFormatRSSExpanded: break; case kBarcodeFormatUPCA: break; case kBarcodeFormatUPCE: strAVMetadataObjectType = AVMetadataObjectTypeUPCECode; break; default: break; } return strAVMetadataObjectType; } #endif - (NSString *)nativeCodeWithType:(SCANCODETYPE)type { switch (type) { case SCT_QRCode: return AVMetadataObjectTypeQRCode; break; case SCT_BarCode93: return AVMetadataObjectTypeCode93Code; break; case SCT_BarCode128: return AVMetadataObjectTypeCode128Code; break; case SCT_BarCodeITF: return @"ITF条码:only ZXing支持"; break; case SCT_BarEAN13: return AVMetadataObjectTypeEAN13Code; break; default: return AVMetadataObjectTypeQRCode; break; } } - (void)showError:(NSString *)str { } - (void)requestCameraPemissionWithResult:(void (^)(BOOL granted))completion { if ([AVCaptureDevice respondsToSelector:@selector(authorizationStatusForMediaType:)]) { AVAuthorizationStatus permission = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; switch (permission) { case AVAuthorizationStatusAuthorized: completion(YES); break; case AVAuthorizationStatusDenied: case AVAuthorizationStatusRestricted: completion(NO); break; case AVAuthorizationStatusNotDetermined: { [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) { dispatch_async(dispatch_get_main_queue(), ^{ if (granted) { completion(true); } else { completion(false); } }); }]; } break; } } } + (BOOL)photoPermission { if ([[[UIDevice currentDevice] systemVersion] floatValue] < 8.0) { ALAuthorizationStatus author = [ALAssetsLibrary authorizationStatus]; if (author == ALAuthorizationStatusDenied) { return NO; } return YES; } PHAuthorizationStatus authorStatus = [PHPhotoLibrary authorizationStatus]; if (authorStatus == PHAuthorizationStatusDenied) { return NO; } return YES; } #pragma mark 禁止横屏 - (BOOL)shouldAutorotate { return NO; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation { return (toInterfaceOrientation == UIInterfaceOrientationMaskPortrait); } - (NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskPortrait; } @end