[英]AirPrint with NSAttributedString
我正在嘗試將兩個NSAttributedStrings添加在一起。 我希望將其打印出來,以便標題具有與打印正文不同的字體大小和字體。 這是我正在使用的代碼。
-(IBAction)print:(id)sender{
UIFont *font = [UIFont fontWithName:@"Avenir Next Condensed" size:16.0];
NSDictionary *attrsDictionary = [NSDictionary dictionaryWithObject:font
forKey:NSFontAttributeName];
NSAttributedString *title = [[NSAttributedString alloc] initWithString:@"this is the title" attributes:attrsDictionary];
UIFont *font2 = [UIFont systemFontOfSize:14.0];
NSDictionary *attrsDictionary2 = [NSDictionary dictionaryWithObject:font2 forKey:NSFontAttributeName];
NSAttributedString *body = [[NSAttributedString alloc] initWithString:@"this is the body of the print" attributes:attrsDictionary2];
NSMutableString *printBody = [NSMutableString stringWithFormat:[NSString stringWithFormat:@"%@ \n"
@"%@ \n",title,body]];
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
pic.delegate = self;
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
printInfo.jobName = @"PrintJob";
pic.printInfo = printInfo;
UISimpleTextPrintFormatter *textFormatter = [[UISimpleTextPrintFormatter alloc] initWithText:printBody];
textFormatter.startPage = 0;
textFormatter.contentInsets = UIEdgeInsetsMake(72.0, 72.0, 72.0, 72.0);
textFormatter.maximumContentWidth = 6 * 72.0;
pic.printFormatter = textFormatter;
pic.showsPageRange = YES;
UIPrinter *SavedPrinterUserDefaults = [[NSUserDefaults standardUserDefaults]
objectForKey:@"SavedPrinter"];
[pic printToPrinter:SavedPrinterUserDefaults
completionHandler:^(UIPrintInteractionController *printInteractionController, BOOL completed, NSError *error) {
if (completed && !error)
NSLog(@"it printed!");
}];
}
當我進行打印時,打印機會打印一條消息,看起來像這樣,並且只顯示所有字體數據。
This is a test title{
NSFont = <font data>
}
this is the body of the print
如果有人可以幫助,那就太好了!
這行:
NSMutableString *printBody = [NSMutableString stringWithFormat:[NSString stringWithFormat:@"%@ \n%@ \n",title,body]];
真的沒有多大意義。 請記住,當以字符串格式使用%@
時,放置在其中的值來自調用相應對象的description
方法。 這不是組合兩個屬性字符串的正確方法。
因此,您需要解決的第一件事是結合兩個屬性字符串。 你要:
NSAttributedString *newline = [[NSAttributedString alloc] initWithString:@"\n"];
NSMutableAttributedString *printBody = [title mutableCopy];
[printBody appendAttributedString:newline];
[printBody appendAttributedString:body];
[printBody appendAttributedString:newline];
現在您已經有了要打印的適當的屬性字符串,您需要更改創建打印格式程序的方式。 代替:
UISimpleTextPrintFormatter *textFormatter = [[UISimpleTextPrintFormatter alloc] initWithText:printBody];
你要:
UISimpleTextPrintFormatter *textFormatter = [[UISimpleTextPrintFormatter alloc] initWithAttributedText:printBody];
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