cocos2dx-lua在ios上实现生成及扫描二维码
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首先说明下,我是支持用iOS原生方法实现的。不过扫描二维码原生方法不支持ios7.0之前的设备,所以生成二维码用的原生方法实现,而扫描二维码用zBar sdk实现的(当然也可以用google官方的zXing sdk)。其中zBar中包含生成二维码的方法,而且更多样,我只是喜欢尽量用原生方法来实现。
这里我把所有生成二维码的代码和lua调用的扫描二维码方法都放在了项目->frameworks->runtime-src->proj.ios_mac->ios->AppController.h和AppController.mm中
而zBar sdk及相关类放到了项目->frameworks->runtime-src->proj.ios_mac->ios下。
-----1.原生生成二维码
------------1.1AppController.h中添加代码:
- +(CIImage*)creatQRcodeWithUrlstring:(NSString*)urlString;
- //改变图片大小(正方形图片)
- +(UIImage*)changeImageSizeWithCIImage:(CIImage*)ciImageandSize:(CGFloat)size;
- //保存(暂时没用)
- +(BOOL)writeImage:(UIImage*)imagetoFileAtPath:(NSString*)aPath;
- +(void)createQRCode:(NSDictionary*)info;
------------1.2AppController.mm中添加代码:
/**
- *
- *@paramurlString需要生成二维码的字符串
- *@return生成的二维码
- */
- +(CIImage*)creatQRcodeWithUrlstring:(NSString*)urlString{
- //1.实例化二维码滤镜
- CIFilter*filter=[CIFilterfilterWithName:@"CIQRCodeGenerator"];
- //2.恢复滤镜的默认属性(因为滤镜有可能保存上一次的属性)
- [filtersetDefaults];
- //3.将字符串转换成NSdata
- NSData*data=[urlStringdataUsingEncoding:NSUTF8StringEncoding];
- //4.通过KVO设置滤镜,传入data,将来滤镜就知道要通过传入的数据生成二维码
- [filtersetValue:dataforKey:@"inputMessage"];
- //5.生成二维码
- CIImage*outputImage=[filteroutputImage];
- returnoutputImage;
- }
- /**
- *改变图片大小(正方形图片)
- *
- *@paramciImage需要改变大小的CIImage对象的图片
- *@paramsize图片大小(正方形图片只需要一个数)
- *@return生成的目标图片
- +(UIImage*)changeImageSizeWithCIImage:(CIImage*)ciImageandSize:(CGFloat)size{
- CGRectextent=CGRectIntegral(ciImage.extent);
- CGFloatscale=MIN(size/CGRectGetWidth(extent),size/CGRectGetHeight(extent));
- //创建bitmap;
- size_twidth=CGRectGetWidth(extent)*scale;
- size_theight=CGRectGetHeight(extent)*scale;
- CGColorSpaceRefcs=CGColorSpaceCreateDeviceGray();
- CGContextRefbitmapRef=CGBitmapContextCreate(nil,width,height,8,cs,(CGBitmapInfo)kCGImageAlphaNone);
- CIContext*context=[CIContextcontextWithOptions:nil];
- CGImageRefbitmapImage=[contextcreateCGImage:ciImagefromRect:extent];
- CGContextSetInterpolationQuality(bitmapRef,kCGInterpolationNone);
- CGContextScaleCTM(bitmapRef,scale,scale);
- CGContextDrawImage(bitmapRef,extent,bitmapImage);
- //保存bitmap到图片
- CGImageRefscaledImage=CGBitmapContextCreateImage(bitmapRef);
- CGContextRelease(bitmapRef);
- CGImageRelease(bitmapImage);
- return[UIImageimageWithCGImage:scaledImage];
- }
- +(BOOL)writeImage:(UIImage*)imagetoFileAtPath:(NSString*)aPath
- {
- if((image==nil)||(aPath==nil)||([aPathisEqualToString:@""]))
- returnNO;
- @try
- NSData*imageData=nil;
- NSString*ext=[aPathpathExtension];
- if([extisEqualToString:@"png"])
- imageData=UIImagePNGRepresentation(image);
- else
- //therest,wewritetojpeg
- //0.best,1.lost.aboutcompress.
- imageData=UIImageJPEGRepresentation(image,0);
- if((imageData==nil)||([imageDatalength]<=0))
- [imageDatawriteToFile:aPathatomically:YES];
- returnYES;
- @catch(NSException*e)
- {
- NSLog(@"createthumbnailexception.");
- /*
- *项目-TARGETS-fightGame-mobile-BuildPhases-LinkBinaryWithLibraries添加CoreImage.framework
- void)createQRCode:(NSDictionary*)info
- int_callBack=[[infoobjectForKey:@"listener"]intValue];
- NSString*qrCodeStr=[infoobjectForKey:@"qrCodeStr"];
- CIImage*ciImage=[selfcreatQRcodeWithUrlstring:qrCodeStr];
- UIImage*uiImage=[selfchangeImageSizeWithCIImage:ciImageandSize:180];
- NSData*imageData=UIImagePNGRepresentation(uiImage);
- std::stringpath=cocos2d::FileUtils::getInstance()->getWritablePath()+"qrCode.png";
- constchar*pathC=path.c_str();
- NSString*pathN=[NSStringstringWithUTF8String:pathC];
- boolisSuccess=[imageDatawriteToFile:pathNatomically:YES];
- cocos2d::LuaBridge::pushLuaFunctionById(_callBack);
- cocos2d::LuaValueDictdict;
- dict["isSuccess"]=cocos2d::LuaValue::booleanValue(isSuccess);
- cocos2d::LuaBridge::getStack()->pushLuaValueDict(dict);
- cocos2d::LuaBridge::getStack()->executeFunction(1);
- cocos2d::LuaBridge::releaseLuaFunctionById(_callBack);
- }
其中createQRcode方法为最终lua掉用oc的方法,将生成的图片存到cocos2dx的writablePath下,并保存为"qrCode.png"。最后在lua端取出用sprite显示。
------------1.3lua调用createQRcode方法,并显示
copy
localcallBack=function(message)
- localfilePath=cc.FileUtils:getInstance():getWritablePath()
- filePath=filePath.."qrCode.png"
- localrect=cc.rect(0,180,180)
- localsprite=cc.Sprite:create()
- sprite:initWithFile(filePath,rect)
- sprite:setPosition(300,300)
- self:addChild(sprite)
- end
- localinfo={listener=callBack,qrCodeStr="https://www.baidu.com/"}
- luaoc.callStaticMethod("AppController","createQRCode",info)
------------1.4添加CoreImage.framework依赖框架(二维码扫描需要用到)
项目->TARGETS->Build Phases->Link Binary With Libraries->左下角“+”号,search框中输入CoreImage.framework,选择匹配的选项即可。
-----2.zBar sdk实现二维码扫描
------------2.1下载zBar sdk
地址在后面给出。
------------2.2将zBarSDK解压并将解压后的zBarSDK导入到工程解压后的zBarSDK目录包含:Headers,libzbar.a,Resources。
如果导入工程后没有自动添加libzbar.a依赖框架,则需要手动添加该依赖框架(如1.4)。
------------2.3项目->frameworks->runtime-src->proj.ios_mac->ios->zBarSDK下新建ZCZBarViewController.h和ZCZBarViewController.mm两个文件,并导入工程,代码如下。
------------2.4ZCZBarViewController.h代码:
版本说明iOS研究院305044955
- 1.8版本剔除生成二维码文件,使用iOS7原生生成二维码
- 1.7版本修复了开启相机点击,用户如果点击拒绝,会导致崩溃的问题
- 1.6版本增加了支持了区别条码和二维码,可以关闭扫描二维码来增加条码扫描速度
- 1.5版本修正了iOS6下扫描会卡死,增加了iOS7下支持条形码,修改了算法,增加了效率
- 1.4版本支持iOS8系统,修改了相应UI的适配问题
- 1.3版本全新支持arm7sarm64全新支持ARC
- 1.2版本ZC封装的ZBar二维码SDK
- 1、更新类名从CustomViewController更改为ZCZBarViewController
- 2、删除掉代理的相关代码
- 1.1版本ZC封装的ZBar二维码SDK~
- 1、增加block回调
- 2、取消代理
- 3、增加适配IOS7(ios7在AVFoundation中增加了扫描二维码功能)
- 1.0版本ZC封装的ZBar二维码SDK~1.0版本初始建立
- 二维码编译顺序
- Zbar编译
- 需要添加AVFoundationCoreMediaCoreVideoQuartzCorelibiconv
- //示例代码
- 扫描代码
- BOOL代表是否关闭二维码扫描,专门扫描条形码
- ZCZBarViewController*vc=[[ZCZBarViewControlleralloc]initWithIsQRCode:NOBlock:^(NSString*result,BOOLisFinish){
- if(isFinish){
- NSLog(@"最后的结果%@",result);
- }
- }];
- [selfpresentViewController:vcanimated:YEScompletion:nil];
- 生成二维码
- [ZCZBarViewControllercreateImageWithImageView:imageViewString:@"http://www.baidu.com"Scale:4];
- */
- #import<UIKit/UIKit.h>
- #import<AVFoundation/AVFoundation.h>
- #import"ZBarReaderController.h"
- #import<CoreImage/CoreImage.h>
- #defineIOS7[[[UIDevicecurrentDevice]systemVersion]floatValue]>=7
- @interfaceZCZBarViewController:UIViewController<AVCaptureVideoDataOutputSampleBufferDelegate,UINavigationControllerDelegate,UIImagePickerControllerDelegate,ZBarReaderDelegate,AVCaptureMetadataOutputObjectsDelegate>
- intnum;
- BOOLupOrdown;
- NSTimer*timer;
- UIImageView*_line;
- @property(nonatomic,strong)AVCaptureVideoPreviewLayer*captureVideoPreviewLayer;
- @property(nonatomic,strong)AVCaptureSession*captureSession;
- BOOLisScanning;
- void(^ScanResult)(NSString*result,BOOLisSucceed);
- @property(nonatomic)BOOLisQRCode;
- //初始化函数
- -(id)initWithIsQRCode:(BOOL)isQRCodeBlock:(void(^)(NSString*,87); background-color: inherit; font-weight: bold;">BOOL))a;
- //正则表达式对扫描结果筛选
- +(NSString*)zhengze:(NSString*)str;
- //创建二维码
- +(void)createImageWithImageView:(UIImageView*)imageViewString:(NSString*)strScale:(CGFloat)scale;
- @end
------------2.4ZCZBarViewController.mm代码:
copy
#import"ZCZBarViewController.h"
- #import<AssetsLibrary/AssetsLibrary.h>
- @interfaceZCZBarViewController()
- @end
- #defineWIDTH(([UIScreenmainScreen].bounds.size.width>[UIScreenmainScreen].bounds.size.height)?[UIScreenmainScreen].bounds.size.width:[UIScreenmainScreen].bounds.size.height)
- //[UIScreenmainScreen].bounds.size.width
- #defineHEIGHT(([UIScreenmainScreen].bounds.size.width<[UIScreenmainScreen].bounds.size.height)?[UIScreenmainScreen].bounds.size.width:[UIScreenmainScreen].bounds.size.height)
- //[UIScreenmainScreen].bounds.size.height
- @implementationZCZBarViewController
- -(id)initWithNibName:(NSString*)nibNameOrNilbundle:(NSBundle*)nibBundleOrNil
- self=[superinitWithNibName:nibNameOrNilbundle:nibBundleOrNil];
- if(self){
- //Custominitialization
- returnself;
- BOOL))a
- if(self=[superinit]){
- self.ScanResult=a;
- self.isQRCode=isQRCode;
- -(void)createView{
- //qrcode_scan_bg_Green_iphone5@2x.pngqrcode_scan_bg_Green@2x.png
- UIImage*image=[UIImageimageNamed:@"qrcode_scan_bg_Green@2x.png"];
- floatcapWidth=image.size.width/2;
- floatcapHeight=image.size.height/2;
- image=[imagestretchableImageWithLeftCapWidth:capWidthtopCapHeight:capHeight];
- UIImageView*bgImageView=[[UIImageViewalloc]initWithFrame:CGRectMake(0,64,WIDTH,HEIGHT-64)];
- //bgImageView.contentMode=UIViewContentModeTop;
- bgImageView.clipsToBounds=YES;
- bgImageView.image=image;
- bgImageView.userInteractionEnabled=YES;
- [self.viewaddSubview:bgImageView];
- //UILabel*label=[[UILabelalloc]initWithFrame:CGRectMake(0,bgImageView.frame.size.height-140,40)];
- //label.text=@"将取景框对准二维码,即可自动扫描。";
- //label.textColor=[UIColorwhiteColor];
- //label.textAlignment=NSTextAlignmentCenter;
- //label.lineBreakMode=NSLineBreakByWordWrapping;
- //label.numberOfLines=2;
- //label.font=[UIFontsystemFontOfSize:12];
- //label.backgroundColor=[UIColorclearColor];
- //[bgImageViewaddSubview:label];
- _line=[[UIImageViewalloc]initWithFrame:CGRectMake((WIDTH-220)/2,70,220,2)];
- _line.image=[UIImageimageNamed:@"qrcode_scan_light_green.png"];
- [bgImageViewaddSubview:_line];
- ////下方相册
- //UIImageView*scanImageView=[[UIImageViewalloc]initWithFrame:CGRectMake(0,HEIGHT-100,100)];
- //scanImageView.image=[UIImageimageNamed:@"qrcode_scan_bar.png"];
- //scanImageView.userInteractionEnabled=YES;
- //[self.viewaddSubview: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(inti=0;i<unSelectImageNames.count;i++){
- //UIButton*button=[UIButtonbuttonWithType:UIButtonTypeCustom];
- //[buttonsetImage:[UIImageimageNamed:unSelectImageNames[i]]forState:UIControlStateNormal];
- //[buttonsetImage:[UIImageimageNamed:selectImageNames[i]]forState:UIControlStateHighlighted];
- //button.frame=CGRectMake(WIDTH/3*i,WIDTH/3,100);
- //[scanImageViewaddSubview:button];
- //if(i==0){
- //[buttonaddTarget:selfaction:@selector(pressPhotoLibraryButton:)forControlEvents:UIControlEventTouchUpInside];
- //}
- //if(i==1){
- //[buttonaddTarget:selfaction:@selector(flashLightClick)forControlEvents:UIControlEventTouchUpInside];
- //}
- //if(i==2){
- //button.hidden=YES;
- //假导航
- //UIImageView*navImageView=[[UIImageViewalloc]initWithFrame:CGRectMake(0,64)];
- //navImageView.image=[UIImageimageNamed:@"qrcode_scan_bar.png"];
- //navImageView.userInteractionEnabled=YES;
- //[self.viewaddSubview:navImageView];
- UILabel*titleLabel=[[UILabelalloc]initWithFrame:CGRectMake(WIDTH/2-32,20,44)];
- titleLabel.textColor=[UIColorwhiteColor];
- titleLabel.backgroundColor=[UIColorclearColor];
- titleLabel.text=@"扫一扫";
- [self.viewaddSubview:titleLabel];
- //[navImageViewaddSubview:titleLabel];
- UIButton*button=[UIButtonbuttonWithType:UIButtonTypeCustom];
- [buttonsetImage:[UIImageimageNamed:@"qrcode_scan_titlebar_back_pressed@2x.png"]forState:UIControlStateHighlighted];
- [buttonsetImage:[UIImageimageNamed:@"qrcode_scan_titlebar_back_nor.png"]forState:UIControlStateNormal];
- [buttonsetFrame:CGRectMake(10,10,48,48)];
- [buttonaddTarget:selfaction:@selector(pressCancelButton:)forControlEvents:UIControlEventTouchUpInside];
- [self.viewaddSubview:button];
- timer=[NSTimerscheduledTimerWithTimeInterval:2target:selfselector:@selector(animation1)userInfo:nilrepeats:YES];
- -(void)animation1
- [UIViewanimateWithDuration:2animations:^{
- _line.frame=CGRectMake((WIDTH-220)/2,70+HEIGHT-310,2);
- }completion:^(BOOLfinished){
- _line.frame=CGRectMake((WIDTH-220)/2,2);
- }];
- //开启关闭闪光灯
- void)flashLightClick{
- AVCaptureDevice*device=[AVCaptureDevicedefaultDeviceWithMediaType:AVMediaTypeVideo];
- if(device.torchMode==AVCaptureTorchModeOff){
- //闪光灯开启
- [devicelockForConfiguration:nil];
- [devicesetTorchMode:AVCaptureTorchModeOn];
- }else{
- //闪光灯关闭
- [devicesetTorchMode:AVCaptureTorchModeOff];
- void)viewDidLoad
- //相机界面的定制在self.view上加载即可
- BOOLCustom=[UIImagePickerController
- isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera];
- if(Custom){
- [selfinitCapture];
- self.view.backgroundColor=[UIColorwhiteColor];
- [superviewDidLoad];
- [selfcreateView];
- #pragmamark选择相册
- void)pressPhotoLibraryButton:(UIButton*)button
- {if(timer){
- [timerinvalidate];
- timer=nil;
- num=0;
- upOrdown=NO;
- UIImagePickerController*picker=[[UIImagePickerControlleralloc]init];
- picker.allowsEditing=YES;
- picker.delegate=self;
- picker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
- [selfpresentViewController:pickeranimated:YEScompletion:^{
- self.isScanning=NO;
- [self.captureSessionstopRunning];
- }];
- #pragmamark点击取消
- void)pressCancelButton:(UIButton*)button
- self.isScanning=NO;
- [self.captureSessionstopRunning];
- self.ScanResult(nil,NO);
- if(timer){
- [timerinvalidate];
- timer=nil;
- num=0;
- upOrdown=NO;
- [selfdismissViewControllerAnimated:YEScompletion:nil];
- #pragmamark开启相机
- void)initCapture
- //ios6上也没有“设置--隐私--相机”那一项
- if(IOS7){
- NSString*mediaType=AVMediaTypeVideo;
- AVAuthorizationStatusauthStatus=[AVCaptureDeviceauthorizationStatusForMediaType:mediaType];
- if(authStatus==AVAuthorizationStatusRestricted||authStatus==AVAuthorizationStatusDenied){
- NSString*str=[NSStringstringWithFormat:@"请在系统设置-%@-相机中打开允许使用相机",[[[NSBundlemainBundle]infoDictionary]objectForKey:(NSString*)kcfBundleNameKey]];
- UIAlertView*alert=[[UIAlertViewalloc]initWithTitle:@"提示"message:strdelegate:nilcancelButtonTitle:@"确定"otherButtonTitles:nil,nil];
- [alertshow];
- return;
- self.captureSession=[[AVCaptureSessionalloc]init];
- AVCaptureDevice*inputDevice=[AVCaptureDevicedefaultDeviceWithMediaType:AVMediaTypeVideo];
- AVCaptureDeviceInput*captureInput=[AVCaptureDeviceInputdeviceInputWithDevice:inputDeviceerror:nil];
- [self.captureSessionaddInput:captureInput];
- AVCaptureVideoDataOutput*captureOutput=[[AVCaptureVideoDataOutputalloc]init];
- captureOutput.alwaysDiscardsLateVideoFrames=YES;
- if(IOS7){
- AVCaptureMetadataOutput*_output=[[AVCaptureMetadataOutputalloc]init];
- [_outputsetMetadataObjectsDelegate:selfqueue:dispatch_get_main_queue()];
- [self.captureSessionsetSessionPreset:AVCaptureSessionPresetHigh];
- [self.captureSessionaddOutput:_output];
- //在这里修改了,可以让原生兼容二维码和条形码,无需在使用Zbar
- if(_isQRCode){
- _output.MetadataObjectTypes=@[AVMetadataObjectTypeQRCode];
- }else{
- _output.MetadataObjectTypes=@[AVMetadataObjectTypeEAN13Code,AVMetadataObjectTypeEAN8Code,AVMetadataObjectTypeCode128Code,AVMetadataObjectTypeQRCode];
- if(!self.captureVideoPreviewLayer){
- self.captureVideoPreviewLayer=[AVCaptureVideoPreviewLayerlayerWithSession:self.captureSession];
- //NSLog(@"prev%p%@",self.prevLayer,self.prevLayer);
- self.captureVideoPreviewLayer.frame=CGRectMake(0,HEIGHT);
- self.captureVideoPreviewLayer.videoGravity=AVLayerVideoGravityResizeAspectFill;
- [self.view.layeraddSublayer:self.captureVideoPreviewLayer];
- self.isScanning=YES;
- [self.captureSessionstartRunning];
- dispatch_queue_tqueue=dispatch_queue_create("myQueue",NULL);
- [captureOutputsetSampleBufferDelegate:selfqueue:queue];
- NSString*key=(NSString*)kCVPixelBufferPixelFormatTypeKey;
- NSNumber*value=[NSNumbernumberWithUnsignedInt:kCVPixelFormatType_32BGRA];
- NSDictionary*videoSettings=[NSDictionarydictionaryWithObject:valueforKey:key];
- [captureOutputsetVideoSettings:videoSettings];
- [self.captureSessionaddOutput:captureOutput];
- NSString*preset=0;
- if(NSClassFromString(@"NSOrderedSet")&&
- [UIScreenmainScreen].scale>1&&
- [inputDevice
- supportsAVCaptureSessionPreset:AVCaptureSessionPresetiFrame960x540]){
- //NSLog(@"960");
- preset=AVCaptureSessionPresetiFrame960x540;
- if(!preset){
- //NSLog(@"MED");
- preset=AVCaptureSessionPresetMedium;
- self.captureSession.sessionPreset=preset;
- if(!self.captureVideoPreviewLayer){
- self.captureVideoPreviewLayer=[AVCaptureVideoPreviewLayerlayerWithSession:self.captureSession];
- self.captureVideoPreviewLayer.frame=CGRectMake(0,0); background-color: inherit;">//self.view.bounds;
- self.captureVideoPreviewLayer.videoGravity=AVLayerVideoGravityResizeAspectFill;
- [self.view.layeraddSublayer:self.captureVideoPreviewLayer];
- self.isScanning=YES;
- [self.captureSessionstartRunning];
- -(UIImage*)imageFromSampleBuffer:(CMSampleBufferRef)sampleBuffer
- CVImageBufferRefimageBuffer=CMSampleBufferGetImageBuffer(sampleBuffer);
- //Lockthebaseaddressofthepixelbuffer
- CVPixelBufferLockBaseAddress(imageBuffer,0); background-color: inherit;">//Getthenumberofbytesperrowforthepixelbuffer
- size_tbytesPerRow=CVPixelBufferGetBytesPerRow(imageBuffer);
- //Getthepixelbufferwidthandheight
- size_twidth=CVPixelBufferGetWidth(imageBuffer);
- size_theight=CVPixelBufferGetHeight(imageBuffer);
- //Createadevice-dependentRGBcolorspace
- CGColorSpaceRefcolorSpace=CGColorSpaceCreateDeviceRGB();
- if(!colorSpace)
- NSLog(@"CGColorSpaceCreateDeviceRGBfailure");
- returnnil;
- //Getthebaseaddressofthepixelbuffer
- void*baseAddress=CVPixelBufferGetBaseAddress(imageBuffer);
- //Getthedatasizeforcontiguousplanesofthepixelbuffer.
- size_tbufferSize=CVPixelBufferGetDataSize(imageBuffer);
- //CreateaQuartzdirect-accessdataproviderthatusesdatawesupply
- CGDataProviderRefprovider=CGDataProviderCreateWithData(NULL,baseAddress,bufferSize,
- NULL);
- //Createabitmapimagefromdatasuppliedbyourdataprovider
- CGImageRefcgImage=
- CGImageCreate(width,248); line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">height,
- 8,248); line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">32,108); border-image: initial; list-style-image: initial; color: inherit; line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">bytesPerRow,248); line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">colorSpace,108); border-image: initial; list-style-image: initial; color: inherit; line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">kCGImageAlphaNoneSkipFirst|kCGBitmapByteOrder32Little,248); line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">provider,108); border-image: initial; list-style-image: initial; color: inherit; line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">NULL,153); background-color: inherit; font-weight: bold;">true,
- kCGRenderingIntentDefault);
- CGDataProviderRelease(provider);
- CGColorSpaceRelease(colorSpace);
- //CreateandreturnanimageobjectrepresentingthespecifiedQuartzimage
- UIImage*image=[UIImageimageWithCGImage:cgImage];
- returnimage;
- #pragmamark对图像进行解码
- void)decodeImage:(UIImage*)image
- ZBarSymbol*symbol=nil;
- ZBarReaderController*read=[ZBarReaderControllernew];
- read.readerDelegate=self;
- CGImageRefcgImageRef=image.CGImage;
- for(symbolin[readscanImage:cgImageRef])break;
- if(symbol!=nil){
- self.ScanResult(symbol.data,YES);
- [selfdismissViewControllerAnimated:YEScompletion:nil];
- timer=[NSTimerscheduledTimerWithTimeInterval:.02target:selfselector:@selector(animation1)userInfo:nilrepeats:YES];
- #pragmamark-AVCaptureVideoDataOutputSampleBufferDelegate
- void)captureOutput:(AVCaptureOutput*)captureOutputdidOutputSampleBuffer:(CMSampleBufferRef)sampleBufferfromConnection:(AVCaptureConnection*)connection
- UIImage*image=[selfimageFromSampleBuffer:sampleBuffer];
- [selfdecodeImage:image];
- #pragmamarkAVCaptureMetadataOutputObjectsDelegate//IOS7下触发
- void)captureOutput:(AVCaptureOutput*)captureOutputdidOutputMetadataObjects:(NSArray*)MetadataObjectsfromConnection:(AVCaptureConnection*)connection
- if(MetadataObjects.count>0)
- AVMetadataMachineReadableCodeObject*MetadataObject=[MetadataObjectsobjectAtIndex:0];
- self.ScanResult(MetadataObject.stringValue,108); border-image: initial; list-style-image: initial; color: inherit; line-height: 18px; padding: 0px 3px 0px 10px !important; list-style-position: outside !important;">#pragmamark-UIImagePickerControllerDelegate
- void)imagePickerController:(UIImagePickerController*)pickerdidFinishPickingMediaWithInfo:(NSDictionary*)info
- UIImage*image=[infoobjectForKey:@"UIImagePickerControllerEditedImage"];
- [selfdismissViewControllerAnimated:YEScompletion:^{[selfdecodeImage:image];}];
- void)imagePickerControllerDidCancel:(UIImagePickerController*)picker
- [selfdismissViewControllerAnimated:YEScompletion:^{
- #pragmamark-DecoderDelegate
- +(NSString*)zhengze:(NSString*)str
- NSError*error;
- //http+:[^\\s]*这是检测网址的正则表达式
- NSRegularExpression*regex=[NSRegularExpressionregularExpressionWithPattern:@"http+:[^\\s]*"options:0error:&error];
- if(regex!=nil){
- NSTextCheckingResult*firstMatch=[regexfirstMatchInString:stroptions:0range:NSMakeRange(0,[strlength])];
- if(firstMatch){
- NSRangeresultRange=[firstMatchrangeAtIndex:0];
- //从urlString中截取数据
- NSString*result1=[strsubstringWithRange:resultRange];
- NSLog(@"正则表达后的结果%@",result1);
- returnresult1;
- returnnil;
- void)createImageWithImageView:(UIImageView*)imageViewString:(NSString*)strScale:(CGFloat)scale{
- [filtersetDefaults];
- NSData*data=[strdataUsingEncoding:NSUTF8StringEncoding];
- CIContext*context=[CIContextcontextWithOptions:nil];
- CGImageRefcgImage=[contextcreateCGImage:outputImage
- fromRect:[outputImageextent]];
- UIImage*image=[UIImageimageWithCGImage:cgImage
- scale:1.0
- orientation:UIImageOrientationUp];
- UIImage*resized=nil;
- CGFloatwidth=image.size.width*scale;
- CGFloatheight=image.size.height*scale;
- UIGraphicsBeginImageContext(CGSizeMake(width,height));
- CGContextRefcontext1=UIGraphicsGetCurrentContext();
- CGContextSetInterpolationQuality(context1,kCGInterpolationNone);
- [imagedrawInRect:CGRectMake(0,-50,height)];
- resized=UIGraphicsGetImageFromCurrentImageContext();
- UIGraphicsEndImageContext();
- imageView.image=resized;
- CGImageRelease(cgImage);
- void)didReceiveMemoryWarning
- [superdidReceiveMemoryWarning];
- //DispoSEOfanyresourcesthatcanberecreated.
- /*
- #pragmamark-Navigation
- //Inastoryboard-basedapplication,youwilloftenwanttodoalittlepreparationbeforenavigation
- -(void)prepareForSegue:(UIStoryboardSegue*)seguesender:(id)sender
- {
- //Getthenewviewcontrollerusing[seguedestinationViewController].
- //Passtheselectedobjecttothenewviewcontroller.
- }
- ////支持旋转
- //-(BOOL)shouldAutorotate{
- //returnNO;
- ////支持的方向
- //-(UIInterfaceOrientationMask)supportedInterfaceOrientations{
- //returnUIInterfaceOrientationMaskPortrait;
- @end
------------2.5AppController.h中添加代码:
copy
//获取当前正在显示的ViewController
- +(UIViewController*)getCurrentVC;
- //获取当前屏幕中present出来的viewcontroller。
- -(UIViewController*)getPresentedViewController;
- //扫描二维码
- void)scanQRCode:(NSDictionary*)info;
------------2.5AppController.mm中添加代码:
copy
+(UIViewController*)getCurrentVC
- UIViewController*result=nil;
- UIWindow*window=[[UIApplicationsharedApplication]keyWindow];
- if(window.windowLevel!=UIWindowLevelNormal)
- NSArray*windows=[[UIApplicationsharedApplication]windows];
- for(UIWindow*tmpWininwindows)
- if(tmpWin.windowLevel==UIWindowLevelNormal)
- window=tmpWin;
- break;
- UIView*frontView=[[windowsubviews]objectAtIndex:0];
- idnextResponder=[frontViewnextResponder];
- if([nextResponderisKindOfClass:[UIViewControllerclass]])
- result=nextResponder;
- result=window.rootViewController;
- returnresult;
- //获取当前屏幕中present出来的viewcontroller。
- -(UIViewController*)getPresentedViewController
- UIViewController*appRootVC=[UIApplicationsharedApplication].keyWindow.rootViewController;
- UIViewController*topVC=appRootVC;
- if(topVC.presentedViewController){
- topVC=topVC.presentedViewController;
- returntopVC;
- void)scanQRCode:(NSDictionary*)info
- //SGScanningQRCodeVC*scanningQRCodeVC=[[SGScanningQRCodeVCalloc]init];
- //[scanningQRCodeVCsetupScanningQRCode];
- UIViewController*nowViewController=[selfgetCurrentVC];
- ZCZBarViewController*vc=[[ZCZBarViewControlleralloc]initWithIsQRCode:NOBlock:^(NSString*result,BOOLisFinish){
- if(isFinish){
- NSLog(@"最后的结果%@",result);
- UIViewController*nowViewController=[selfgetCurrentVC];
- dispatch_after(dispatch_time(DISPATCH_TIME_NOW,(int64_t)(0.02*NSEC_PER_SEC)),dispatch_get_main_queue(),^{
- [nowViewControllerdismissViewControllerAnimated:NOcompletion:nil];
- dict["scanResult"]=cocos2d::LuaValue::stringValue([resultUTF8String]);
- });
- [nowViewControllerpresentViewController:vcanimated:YEScompletion:nil];
- }
其中scanQRCode方法为最终lua掉用oc的方法,在扫描识别出二维码信息之后会将信息传回给lua端。
------------2.6lua掉用oc扫描二维码代码:
print("messagescanResult:",message.scanResult)
- Utils.showTip(message.scanResult)
- localinfo={listener=callBack}
- "scanQRCode",51); font-family: Arial; font-size: 0.933rem;">------------2.7添加依赖框架
如上1.4,扫描二维码需要添加框架AVFoundation,CoreMedie,CoreVideo,QuartzCore,libiconv
-----3.扫描界面横竖屏说明
如果游戏界面是横屏的,而二维码扫描界面要求是竖屏的,则需要做些操作。
------------3.1增加竖屏支持
项目->TARGETS->General->Deployment Info->Device Orientation->勾选Portrait,Landscape Left,Landscape Right。
------------3.2让游戏界面只支持横屏
项目->frameworks->runtime-src->proj.ios_mac->ios->RootViewController.mm中supportedInterfaceOrientations方法修改为:
//Forios6,usesupportedInterfaceOrientations&shouldAutorotateinstead
- -(NSUInteger)supportedInterfaceOrientations{
- returnUIInterfaceOrientationMaskLandscapeLeft|UIInterfaceOrientationMaskLandscapeRight;
- //#ifdef__IPHONE_6_0
- //returnUIInterfaceOrientationMaskAllButUpsideDown;
- //#endif
- }
------------3.3扫描二维码界面只支持竖屏ZCZBarViewController.mm中增加代码:
//}
------------3.4修改view界面width和height重新适配
项目->frameworks->runtime-src->proj.ios_mac->ios->ZCZBarViewController.mm中将
#define WIDTH和#define HEIGHT两个宏的值颠倒下。
-----4.关于项目->frameworks->runtime-src->proj.ios_mac->ios->ZCZBarViewController.mm中#define WIDTH和#define HEIGHT两个宏
本来因该是
#define WIDTH[UIScreen mainScreen].bounds.size.width
#define HEIGHT[UIScreen mainScreen].bounds.size.height
但在iphone4s(ios6.1.3)上取出的width和height为320,480,而在iPhone6 Plus(ios10.2)上width和height为568,320。@H_713_3010@一个宽小于高,一个宽大于高,使得4s横屏的时候,6Plus竖屏是对的,而在6Plus上横屏就是乱的。
@H_300_3013@所以后来将两个宏修改为(注意:@H_390_3015@两边一定要带括号@H_713_3010@,防止编译时宏展开后由于操作符优先级导致的运算错误)
@H_300_3013@#define WIDTH( ([UIScreen mainScreen].bounds.size.width>[UIScreen mainScreen].bounds.size.height)?[UIScreen mainScreen].bounds.size.width:[UIScreen mainScreen].bounds.size.height )
#defineHEIGHT( ([UIScreen mainScreen].bounds.size.width<[UIScreen mainScreen].bounds.size.height)?[UIScreen mainScreen].bounds.size.width:[UIScreen mainScreen].bounds.size.height )
从而将宽固定取获得的二者较大值,高为二者较小值。若是竖屏,则反过来。
-----5.遇到的一些问题
------------5.1对于ZCZBarViewController.mm中的initCpture方法中有句
AVAuthorizationStatusauthStatus = [AVCaptureDeviceauthorizationStatusForMediaType:mediaType];
注意:此方法只对ios7以上的系统有用,如果是在ios6的系统的话就直接崩溃了,况且ios6上也没有“设置--隐私--相机”那一项。
所以加了if(IOS7)的判断。
------------5.2若碰到错误Cannot synthesize weak property in file using manual reference counting
项目->TARGETS->Build Settings->Apple LLVM 8.0-Language-Objective C->Weak References in Manual Retian Release改为YES
------------5.3编译报错XXXX.o
@H_300_3013@若编译运行报错,XXXX.o什么什么的问题,则可能是有依赖框架没有导入。
@H_300_3013@-----6.参考链接
//原生生成二维码
@H_300_3013@http://www.jb51.cc/article/p-zcstxcne-dx.html
@H_300_3013@//原生二维码扫描
@H_300_3013@http://www.cocoachina.com/ios/20161009/17696.html
@H_300_3013@//zBar下载地址
http://download.csdn.net/download/kid_devil/7552613
//zBarDemo下载地址
http://download.csdn.net/detail/shan1991fei/9474417
//二维码扫描之zXing与zBar的优劣
http://blog.csdn.net/l_215851356/article/details/51898514