我是iPhone开发的新手,我需要打印UIView.所以我将UIView转换成PDF,它对我来说很好..
但我不知道如何将这个PDF传递给打印机以便打印,任何人都可以帮助解决这个问题
但我不知道如何将这个PDF传递给打印机以便打印,任何人都可以帮助解决这个问题
提前致谢
我的代码是：
- (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,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;
}
//打印机代码
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];
}
解决方法
您可以通过此代码打印pdf ….
#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,NSError *error)
{
#ifdef DEBUG
if ((completed == NO) && (error != nil)) NSLog(@"%s %@",__FUNCTION__,error);
#endif
}
];
}
}
#endif //
