print nsmutable array using printer in ios - iphone

Question

I have three nsmutable array in ios. I have to print data as below example using printer , How should i do it?
example:--
0.5 1 10
1 10 11
2 5 22
3 4 6

Answer 1

For example these are arrays :
NSArray *arr = [NSArray arrayWithObjects:#"1",#"2",#"3",#"4",#"5",#"6", nil];
NSArray *arr1 = [NSArray arrayWithObjects:#"17",#"27",#"37",#"47",#"57",#"67", nil];
NSArray *arr2 = [NSArray arrayWithObjects:#"171",#"271",#"371",#"471",#"571",#"671", nil];
Now get all data in NSString
NSMutableString *str = [NSMutableString string];
for (int i=0; i<[arr count]; i++)
{
str = [str stringByAppendingFormat:[NSString stringWithFormat:#"%# %# %#\n",[arr objectAtIndex:i],[arr1 objectAtIndex:i],[arr2 objectAtIndex:i]]];
}
NSLog(#"%#",str);
Use toPdfData method to get NSData to print.
NSData *data = [self toPdfData:str];
Add these method:
- (NSData *) toPdfData :(NSMutableString *)str
{
//calculate size
CGSize stringSize = [str sizeWithFont:[UIFont systemFontOfSize:15] constrainedToSize:CGSizeMake(320 , 999) lineBreakMode:UILineBreakModeWordWrap];
// Creates a mutable data object for updating with binary data, like a byte array
NSMutableData *pdfData = [NSMutableData data];
// Points the pdf converter to the mutable data object and to the UIView to be converted
UIGraphicsBeginPDFContextToData(pdfData, CGRectMake(0, 0, stringSize.width, stringSize.height), nil);
UIGraphicsBeginPDFPage();
// draws rect to the view and thus this is captured by UIGraphicsBeginPDFContextToData
[str drawInRect:CGRectMake(0, 0, stringSize.width, stringSize.height) withFont:[UIFont systemFontOfSize:15]];
// remove PDF rendering context
UIGraphicsEndPDFContext();
// Retrieves the document directories from the iOS device
NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES);
NSString* documentDirectory = [documentDirectories objectAtIndex:0];
NSString* documentDirectoryFilename = [documentDirectory stringByAppendingPathComponent:aFilename];
// instructs the mutable data object to write its context to a file on disk
[pdfData writeToFile:documentDirectoryFilename atomically:YES];
NSLog(#"documentDirectoryFileName: %#",documentDirectoryFilename);
return pdfData;
}
EDIT : Now you have PDF Data and PDF file also store in NSDocument Directory so print using UIPrintInteractionController

Answer 2

You can use the UIPrintInteractionController for doing this.
Please check the below code:
NSMutableString *stringToPrint = [[NSMutableString alloc] initWithString:#""];
for(int i = 0;i<[array count];i++)
{
[stringToPrint appendFormat:#"%#",[array objectAtIndex:i]];
if(i%2 == 0)
{
[stringToPrint appendFormat:#"\n"];
}
else
{
[stringToPrint appendFormat:#"\t"];
}
}
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
printInfo.jobName = #"Midhun";
pic.printInfo = printInfo;
UISimpleTextPrintFormatter *textFormatter = [[UISimpleTextPrintFormatter alloc]
initWithText:stringToPrint];
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;
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];
}
Please read Printing and Drawing in iOS for more details.

Answer 3

Use following code to traverse and print.
for (int i=0; i<[array count]; i++) {
NSLog(#"%#",[array objectAtIndex:i]);
}