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내 용지 공급 동작이 호출되었지만 아무것도 인쇄되지 않고 용지가 비어 있습니다. 인쇄를 위해 다음 코드를 사용하고 있습니다.인쇄가 ipad에서 작동하지 않습니다
-(IBAction)printButtonAction:(id)sender{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *writableDBPath = [documentsDirectory stringByAppendingPathComponent:@"Preview.pdf"];
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:writableDBPath]];
UIPrintInteractionController *controller = [UIPrintInteractionController sharedPrintController];
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
printInfo.jobName = [writableDBPath lastPathComponent];
printInfo.duplex = UIPrintInfoDuplexLongEdge;
controller.printInfo = printInfo;
controller.showsPageRange = YES;
controller.printingItem = data;
void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
^(UIPrintInteractionController *pic, BOOL completed, NSError *error) {
if (!completed && error)
NSLog(@"FAILED! due to error in domain %@ with error code %u",
error.domain, error.code);
};
UIViewPrintFormatter *viewFormatter = [documentView viewPrintFormatter];
viewFormatter.startPage = 0;
controller.printFormatter = viewFormatter;
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
[controller presentFromBarButtonItem:printButton animated:YES
completionHandler:completionHandler];
} else {
[controller presentAnimated:YES completionHandler:completionHandler];
}
}
감사
피카의 자이나교 나는 아래의 코드가 작동 것이라고 생각