如何在iOS 4.2中打印？
如何在iOS 4.2中打印？
提问于 2010-12-07 12:33:37
我想在我的应用程序中集成打印功能。
我要打印的文档将是.doc或.txt格式。我对iPhone开发还不是很有经验，所以我发现很难按照苹果的文档来实现它。
如果有人可以帮助我张贴一些样本代码，将是一个很大的帮助。
回答 3
Stack Overflow用户
回答已采纳
发布于 2010-12-07 14:08:27
查看 --我链接到了打印部分。那里有示例代码和指向更多示例代码的良好链接。
编辑：我现在明白了，您表示您发现文档很难理解。
Word文档很复杂--您需要解析数据，这是相当困难的。
文本和HTML更容易。我以Apple的HTML为例，将其更改为纯文本：
- (IBAction)printContent:(id)sender {
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
pic.delegate = self;
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
printInfo.jobName = self.documentName;
pic.printInfo = printInfo;
UISimpleTextPrintFormatter *textFormatter = [[UISimpleTextPrintFormatter alloc]
initWithText:yourNSStringWithContextOfTextFileHere];
textFormatter.startPage = 0;
textFormatter.contentInsets = UIEdgeInsetsMake(72.0, 72.0, 72.0, 72.0); // 1 inch margins
textFormatter.maximumContentWidth = 6 * 72.0;
pic.printFormatter = textFormatter;
[textFormatter release];
pic.showsPageRange = YES;
void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
^(UIPrintInteractionController *printController, BOOL completed, NSError *error) {
if (!completed && error) {
NSLog(@"Printing could not complete because of error: %@", error);
}
};
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
[pic presentFromBarButtonItem:sender animated:YES completionHandler:completionHandler];
} else {
[pic presentAnimated:YES completionHandler:completionHandler];
}
}Stack Overflow用户
发布于 2016-06-15 17:40:50
首先添加UIPrintInteractionControllerDelegate并创建变量
UIPrintInteractionController *printController;以下代码用于打印所有图像、文档、excel、powerpoint、pdf文件，适用于我：
[self printItem:SomeData withFilePath:YourFilePath];在上面的代码中，您提供了文档/图像的NSData和URL (filePath)，以及下面的进一步的printItem:withFilePath:方法代码
-(void)printItem :(NSData*)data withFilePath:(NSString*)filePath{
printController = [UIPrintInteractionController sharedPrintController];
printController.delegate = self;
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
printInfo.jobName = [NSString stringWithFormat:@""];
printInfo.duplex = UIPrintInfoDuplexLongEdge;
printController.printInfo = printInfo;
printController.showsPageRange = YES;
//If NSData contains data of image/PDF
if(printController && [UIPrintInteractionController canPrintData:data]) {
printController.printingItem = data;
}else{
UIWebView* webView = [UIWebView new];
printInfo.jobName = webView.request.URL.absoluteString;
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:filePath]]];
printController.printFormatter = webView.viewPrintFormatter;
}
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);
}
};
// Check wether device is iPad/iPhone , because UIPrintInteractionControllerDelegate has different methods for both devices
if([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
[printController presentFromRect:self.view.frame inView:self.view animated:YES completionHandler:completionHandler];
}
else {
[printController presentAnimated:YES completionHandler:completionHandler];
}
}我希望它能有所帮助。谢谢
//对于Swift，如果只想打印图像，请先为图像创建IBoutlet
@IBOutlet var qrImage : UIImageView?然后单击打印按钮，只需添加以下代码
//In your view controller
@IBAction func printButton(sender: AnyObject) {
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.outputType = UIPrintInfoOutputType.general
printInfo.jobName = "My Print Job"
// Set up print controller
let printController = UIPrintInteractionController.shared
printController.printInfo = printInfo
// Assign a UIImage version of my UIView as a printing iten
printController.printingItem = self.qrImage?.image
// Do it
printController.present(from: self.view.frame, in: self.view, animated: true, completionHandler: nil)
}Stack Overflow用户
发布于 2012-11-25 15:47:03
嗨，这可能会帮助你，尝试并发布，如果有任何疑问。
-(IBAction)printFromIphone:(id)sender {
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
pic.delegate = self;
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
printInfo.jobName = self.documentName;
pic.printInfo = printInfo;
UISimpleTextPrintFormatter *textFormatter = [[UISimpleTextPrintFormatter alloc]
initWithText:yourNSStringWithContextOfTextFileHere];
textFormatter.startPage = 0;
textFormatter.contentInsets = UIEdgeInsetsMake(72.0, 72.0, 72.0, 72.0); // 1 inch margins
textFormatter.maximumContentWidth = 6 * 72.0;
pic.printFormatter = textFormatter;
[textFormatter release];
pic.showsPageRange = YES;
void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
^(UIPrintInteractionController *printController, BOOL completed, NSError *error) {
if (!completed && error) {
NSLog(@"Printing could not complete because of error: %@", error);
}
};
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
[pic presentFromBarButtonItem:sender animated:YES completionHandler:completionHandler];
} else {
[pic presentAnimated:YES completionHandler:completionHandler];
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/4373420
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