Yazıcıya Giriş Olarak PDF Nasıl Aktarılır

Question

iPhone geliştirme konusunda yeniyim ve UIView'i yazdırmam gerekiyor. bu yüzden PDF içine UIView dönüştürülür ve bu benim için iyi çalışır .. ama ben yazdırmak böylece Yazıcıya bu PDF geçmesine nasıl bilmiyorum can önceden bu

Teşekkür çözümünde herhangi bir yardım

benim kodudur:

- (void)createPDFfromUIView:(UIView*)aView saveToDocumentsWithFileName:(NSString*)aFilename 
{ 
    NSMutableData *pdfData = [NSMutableData data]; 
    UIGraphicsBeginPDFContextToData(pdfData, aView.bounds, nil); 
    UIGraphicsBeginPDFPage(); 
    CGContextRef pdfContext = UIGraphicsGetCurrentContext(); 
    [aView.layer renderInContext:pdfContext]; 
    UIGraphicsEndPDFContext(); 
     NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES); 

    NSString* documentDirectory = [documentDirectories objectAtIndex:0]; 
    NSString* documentDirectoryFilename = [documentDirectory stringByAppendingPathComponent:aFilename]; 
    [pdfData writeToFile:documentDirectoryFilename atomically:YES]; 
    NSLog(@"documentDirectoryFileName: %@",documentDirectoryFilename); 
} 

-(void)getPDF{ 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES); 
    NSString *documentsPath = [paths objectAtIndex:0]; 
    NSString *filePath = [documentsPath stringByAppendingPathComponent:@"myPdf"]; 
    NSLog(@"filePath: %@",filePath); 

    NSData *pngData = [NSData dataWithContentsOfFile:filePath]; 
    [displayPDFView loadData:pngData MIMEType:@"application/pdf" textEncodingName:@"utf-8" baseURL:nil]; 
    [self.view setBackgroundColor:[UIColor colorWithWhite:0.5 alpha:0.0]]; 
    displayPDFView.hidden = NO; 

} 

// yazıcı bu kodla pdf yazdırabilirsiniz

NSString *path = [[NSBundle mainBundle] pathForResource:@"demo" ofType:@"png"]; 
    NSData *dataFromPath = [NSData dataWithContentsOfFile:path]; 

    UIPrintInteractionController *printController = [UIPrintInteractionController sharedPrintController]; 

    if(printController && [UIPrintInteractionController canPrintData:dataFromPath]) { 

     printController.delegate = self; 

     UIPrintInfo *printInfo = [UIPrintInfo printInfo]; 
     printInfo.outputType = UIPrintInfoOutputGeneral; 
     printInfo.jobName = [path lastPathComponent]; 
     printInfo.duplex = UIPrintInfoDuplexLongEdge; 
     printController.printInfo = printInfo; 
     printController.showsPageRange = YES; 
     printController.printingItem = dataFromPath; 

     void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) = ^(UIPrintInteractionController *printController, BOOL completed, NSError *error) { 
      if (!completed && error) { 
       NSLog(@"FAILED! due to error in domain %@ with error code %u", error.domain, error.code); 
      } 
     }; 

     [printController presentFromRect:btnPrint.frame inView:btnPrint.superview 
           animated:YES completionHandler:completionHandler]; 
    } 

Answer 1

kod ....

Burada biri hızlı 4'te aynı kodu seyir halinde

#if (READER_ENABLE_PRINT == TRUE) // Option 

Class printInteractionController = NSClassFromString(@"UIPrintInteractionController"); 

if ((printInteractionController != nil) && [printInteractionController isPrintingAvailable]) 
{ 
    NSURL *fileURL = document.fileURL; // Document file URL 

    printInteraction = [printInteractionController sharedPrintController]; 

    if ([printInteractionController canPrintURL:fileURL] == YES) 
    { 
     UIPrintInfo *printInfo = [NSClassFromString(@"UIPrintInfo") printInfo]; 

     printInfo.duplex = UIPrintInfoDuplexLongEdge; 
     printInfo.outputType = UIPrintInfoOutputGeneral; 
     printInfo.jobName = document.fileName; 

     printInteraction.printInfo = printInfo; 
     printInteraction.printingItem = fileURL; 
     printInteraction.showsPageRange = YES; 

     [printInteraction presentFromRect:button.bounds inView:button animated:YES completionHandler: 
      ^(UIPrintInteractionController *pic, BOOL completed, NSError *error) 
      { 
       #ifdef DEBUG 
        if ((completed == NO) && (error != nil)) NSLog(@"%s %@", __FUNCTION__, error); 
       #endif 
      } 
     ]; 
    } 
} 

    #endif // 

Answer 2

öyle:

@IBAction func airPrint(_ sender: Any) { 
    //call method below to generate pdf file 
    createPdfFromView(aView: self.view, saveToDocumentsWithFileName: "sample") 
    var paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true) 
    let documentsPath: String = paths[0] 
    let filePath = URL(fileURLWithPath: documentsPath).appendingPathComponent("sample") 
    print("filePath: \(filePath.path)") 

    //AirPrint  
    let printController = UIPrintInteractionController.shared 
    let printInfo = UIPrintInfo(dictionary : nil) 
    printInfo.duplex = .longEdge 
    printInfo.outputType = .general 
    printInfo.jobName = "Test" 
    printController.printInfo = printInfo 
    printController.printingItem = filePath 
    printController.present(animated : true, completionHandler : nil) 
} 

func createPdfFromView(aView: UIView, saveToDocumentsWithFileName fileName: String) 
{ 
    let pdfData = NSMutableData() 
    UIGraphicsBeginPDFContextToData(pdfData, aView.bounds, nil) 
    UIGraphicsBeginPDFPage() 

    guard let pdfContext = UIGraphicsGetCurrentContext() else { return } 

    aView.layer.render(in: pdfContext) 
    UIGraphicsEndPDFContext() 

    if let documentDirectories = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first { 
     let documentsFileName = documentDirectories + "/" + fileName 
     debugPrint(documentsFileName) 
     pdfData.write(toFile: documentsFileName, atomically: true) 
    } 
}