我是开发iOS应用的新开发人员。我正在使用以下代码创建pdf。创建pdf并同时显示数据。但我需要显示每个pdf页面的页码。请帮帮我。
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *saveDirectory = [paths objectAtIndex:0];
NSString *filename =@"Gp By SalesPerson Summary";
filename = [filename stringByAppendingString:@".pdf"];
NSLog(@"Filename= %@",filename);
NSString *saveFileName = filename;
NSString *newFilePath = [saveDirectory stringByAppendingPathComponent:saveFileName];
const char *filenm = [newFilePath UTF8String];
CGRect pageRect = CGRectMake(0, 0, 712,792);
// This code block sets up our PDF Context so that we can draw to it
CGContextRef pdfContext;
CFStringRef path;
CFURLRef url;
CFMutableDictionaryRef myDictionary = NULL;
// Create a CFString from the filename we provide to this method when we call it
path = CFStringCreateWithCString (NULL, filenm,
kCFStringEncodingUTF8);
// Create a CFURL using the CFString we just defined
url = CFURLCreateWithFileSystemPath (NULL, path,
kCFURLPOSIXPathStyle, 0);
NSLog(@"path= %@",path);
CFRelease (path);
// This dictionary contains extra options mostly for 'signing' the PDF
myDictionary = CFDictionaryCreateMutable(NULL, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(myDictionary, kCGPDFContextTitle, CFSTR("My PDF File"));
CFDictionarySetValue(myDictionary, kCGPDFContextCreator, CFSTR("My Name"));
// Create our PDF Context with the CFURL, the CGRect we provide, and the above defined dictionary
pdfContext = CGPDFContextCreateWithURL(url, &pageRect, myDictionary);
NSLog(@"%@",url);
CFRelease(myDictionary);
CFRelease(url);
//pdf page creation code starts here…
//I have stored the product details in array aryPrdCode,aryPrdName,aryPrdImageData
filterArray = [[NSMutableArray alloc]init];
NSLog(@"arrayCoutnt:%d",[array_spName count]);
int count ;
for(int i = 0; i<[namesArray count]; i++)
{
[filterArray removeAllObjects];
int perPage;
for(int j=0; j<[filArray count]; j++)
{
if([[namesArray objectAtIndex:i] isEqualToString:[[filArray objectAtIndex:j]objectForKey:@"EmployeeName"]])
{
[filterArray addObject:[filArray objectAtIndex:j]];
}
}
revenueSum = 0;
cogsSum = 0;
marginSum = 0;
marginPerSum = 0;
for(int j=0; j<4; j++)
{
for(int i=0; i<[filterArray count]; i++)
{
if(j==0)
revenueSum = revenueSum +[[[filterArray objectAtIndex:i] objectForKey:@"Revenue"] floatValue];
else if(j==1)
cogsSum = cogsSum +[[[filterArray objectAtIndex:i] objectForKey:@"COGS"] floatValue];
else if(j==2)
marginSum = marginSum +[[[filterArray objectAtIndex:i] objectForKey:@"GP"] floatValue];
else if(j==3)
marginPerSum = marginPerSum +[[[filterArray objectAtIndex:i] objectForKey:@"MarginPer"] floatValue];
}
}
NSLog(@"filterArray:%@ %d",filterArray,[filterArray count]);
perPage = 17; //Number of products to be shown per page
count = [filterArray count];
float pages = ((float)count / (float)perPage);
int pagesInPdf = [[NSNumber numberWithFloat:ceilf(pages)] intValue];
CGContextBeginPage (pdfContext, &pageRect);
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"dd/MM/yyyy"];
NSString *theDate = [dateFormat stringFromDate:[NSDate date]];
// Header fields like customerId, REP name etc
const char *repName = [[NSString stringWithFormat:@"%@",[[filterArray objectAtIndex:0]objectForKey:@"EmployeeName"]] UTF8String];
//const char *salesOrder = [[NSString stringWithFormat:@"Sales: %@",@"For Ship Out"] UTF8String];
//const char *customerId = [[NSString stringWithFormat:@"Customer-Id: %@",@"444"] UTF8String];
const char *dolOn = [[NSString stringWithFormat:@"Date: %@",theDate] UTF8String];
// const char *orderAmount = [[NSString stringWithFormat:@"Order Total: $%@",@"10000"] UTF8String];
CGContextSelectFont (pdfContext, "Helvetica", 14, kCGEncodingMacRoman);
CGContextShowTextAtPoint (pdfContext, 10 , 760, repName, strlen(repName));
//CGContextShowTextAtPoint (pdfContext, 230 , 780, salesOrder, strlen(salesOrder));
// CGContextShowTextAtPoint (pdfContext, 500 , 780, customerId, strlen(customerId));
CGContextShowTextAtPoint (pdfContext, 230 , 760, dolOn, strlen(dolOn));
// CGContextShowTextAtPoint (pdfContext, 270 , 760 , orderAmount, strlen(orderAmount));
CGContextSelectFont (pdfContext, "Helvetica", 15, kCGEncodingMacRoman); // this code generates some error check the error below think coz it is unable to find font
CGContextSetTextDrawingMode (pdfContext, kCGTextFill);
//Drawing Headings in a Table
CGContextSetRGBFillColor (pdfContext, 0, 0, 0, 1);
UIImage *headingStrip = [UIImage imageNamed:@"gray-strip-horizontal.png"];
CGContextDrawImage(pdfContext, CGRectMake(0, 715, 712, 39), headingStrip.CGImage);
CGContextShowTextAtPoint (pdfContext, 20 , 730, [@"SalesPerson" UTF8String], strlen([@"SalesPerson" UTF8String]));
CGContextShowTextAtPoint (pdfContext, 211 , 730, [@"Revenue $" UTF8String], strlen([@"Revenue $" UTF8String]));
CGContextShowTextAtPoint (pdfContext, 330 , 730, [@"COGS $" UTF8String], strlen([@"COGS $" UTF8String]));
CGContextShowTextAtPoint (pdfContext, 460 , 730, [@"GP Margin $" UTF8String], strlen([@"GP Margin $" UTF8String]));
CGContextShowTextAtPoint (pdfContext, 600 , 730 ,[@"GP Margin %" UTF8String], strlen([@"GP Margin %" UTF8String]));
const char *borderLine = [@"-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------" UTF8String];
const char *borderLine1 = [@" -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------" UTF8String];
UIImage *columnImg = [UIImage imageNamed:@"gray-strip-virticle.png"];
int k=0;
//Drawing Rows in a Table
CGContextSelectFont (pdfContext, "Helvetica", 12, kCGEncodingMacRoman);
CGContextSetRGBFillColor (pdfContext, 0., 0, 0, 1);
NSLog(@"pagesInPdf;%d",pagesInPdf);
for(int j=0;j<pagesInPdf;j++)
{
if(j!=0)
{
//from 2nd page this code will call
CGContextBeginPage (pdfContext, &pageRect);
CGContextSetTextDrawingMode (pdfContext, kCGTextFill);
CGContextSelectFont (pdfContext, "Helvetica", 12, kCGEncodingMacRoman);
CGContextSetRGBFillColor (pdfContext, 0., 0, 0, 1);
}
int noOfRowsInPage;
if(j!=(pagesInPdf-1)){
noOfRowsInPage= perPage;
NSLog(@"Number of Rows In Pages=-=-:%d",noOfRowsInPage);}
else
{
noOfRowsInPage = [filterArray count]-j*perPage;
NSLog(@"Number of Rows In Pages:%d",noOfRowsInPage);
}
NSLog(@"numberOfRows In Pages:%d",noOfRowsInPage);
for(int i =0;i<noOfRowsInPage;i++)
{
NSLog(@"kkkkkkk:%d %d",k,j);
k++;
const char *itemNo = [[[filterArray objectAtIndex:j*perPage+i] objectForKey:@"EmployeeName"] UTF8String];
const char *description = [[[filterArray objectAtIndex:j*perPage+i] objectForKey:@"Revenue"] UTF8String];
const char *price = [[[filterArray objectAtIndex:j*perPage+i] objectForKey:@"COGS"] UTF8String];
const char *maxinv = [[[filterArray objectAtIndex:j*perPage+i] objectForKey:@"GP"] UTF8String];
const char *qtyorder = [[[filterArray objectAtIndex:j*perPage+i] objectForKey:@"MarginPer"] UTF8String];
if(j==0)
{
//1st Page
CGContextShowTextAtPoint (pdfContext, 20 , 695-i*40, itemNo, strlen(itemNo));
CGContextDrawImage(pdfContext, CGRectMake(200, 675-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 211 , 695-i*40, description, strlen(description));
CGContextDrawImage(pdfContext, CGRectMake(320, 675-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 330 , 695-i*40, maxinv, strlen(maxinv));
CGContextDrawImage(pdfContext, CGRectMake(450, 675-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 460 , 695-i*40, qtyorder, strlen(qtyorder));
CGContextDrawImage(pdfContext, CGRectMake(590, 675-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 600 , 695-i*40, price, strlen(price));
CGContextShowTextAtPoint (pdfContext, 0 , 673-i*40, borderLine, strlen(borderLine));
CGContextShowTextAtPoint (pdfContext, 0 , 673-i*40, borderLine1, strlen(borderLine1));
}
else
{
//2nd,3rd etc..Pages
CGContextShowTextAtPoint (pdfContext, 20 , 750-i*40, itemNo, strlen(itemNo));
CGContextDrawImage(pdfContext, CGRectMake(200, 735-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 211 , 750-i*40, description, strlen(description));
CGContextDrawImage(pdfContext, CGRectMake(320, 735-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 330 , 750-i*40, maxinv, strlen(maxinv));
CGContextDrawImage(pdfContext, CGRectMake(450, 735-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 460 , 750-i*40,qtyorder, strlen(qtyorder));
CGContextDrawImage(pdfContext, CGRectMake(590, 735-i*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 600 , 750-i*40, price, strlen(price));
CGContextShowTextAtPoint (pdfContext, 0 , 733-i*40, borderLine, strlen(borderLine));
CGContextShowTextAtPoint (pdfContext, 0 , 733-i*40, borderLine1, strlen(borderLine1));
}
}
int row;
row = noOfRowsInPage;
NSString *str = @"Total";
if(row == noOfRowsInPage)
{
NSLog(@"MarginSum:%f",marginSum);
NSLog(@"CogsSum:%f",cogsSum);
NSLog(@"RevenueSum:%f",revenueSum);
NSLog(@"MargenPer:,%f",marginPerSum);
const char *itemNo = [str UTF8String];
const char *description = [[NSString stringWithFormat:@"$%0.2f",revenueSum] UTF8String];
const char *price = [[[NSString stringWithFormat:@"%0.2f",(marginSum/revenueSum *100)]stringByAppendingString:@"%"] UTF8String];
const char *maxinv = [[NSString stringWithFormat:@"$%0.2f",cogsSum] UTF8String];
const char *qtyorder = [[NSString stringWithFormat:@"$%0.2f",marginSum] UTF8String];
if([[NSString stringWithFormat:@"$%f",revenueSum] length]>17)
{
CGContextSelectFont (pdfContext, "Helvetica-Bold", 10, kCGEncodingMacRoman);
CGContextSetRGBFillColor (pdfContext, 0., 0, 0, 1);
NSLog(@"rowCount is:%d",row);
}
else {
CGContextSelectFont (pdfContext, "Helvetica-Bold", 13, kCGEncodingMacRoman);
CGContextSetRGBFillColor (pdfContext, 0., 0, 0, 1);
NSLog(@"rowCount is:%d",row);
}
if(j == pagesInPdf-1)
{
if(j == 0)
{
//1st Page Total---->> Footer
CGContextShowTextAtPoint (pdfContext, 20 , 695-row*40, itemNo, strlen(itemNo));
CGContextDrawImage(pdfContext, CGRectMake(200, 675-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 211 , 695-row*40, description, strlen(description));
CGContextDrawImage(pdfContext, CGRectMake(320, 675-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 330 , 695-row*40, maxinv, strlen(maxinv));
CGContextDrawImage(pdfContext, CGRectMake(450, 675-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 460 , 695-row*40, qtyorder, strlen(qtyorder));
CGContextDrawImage(pdfContext, CGRectMake(590, 675-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 600 , 695-row*40, price, strlen(price));
CGContextShowTextAtPoint (pdfContext, 0 , 673-row*40, borderLine, strlen(borderLine));
CGContextShowTextAtPoint (pdfContext, 0 , 673-row*40, borderLine1, strlen(borderLine1));
}
else {
//2nd,3rd etc.. Pages Total---->>Footer
CGContextShowTextAtPoint (pdfContext, 20 , 750-row*40, itemNo, strlen(itemNo));
CGContextDrawImage(pdfContext, CGRectMake(200, 735-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 211 , 750-row*40, description, strlen(description));
CGContextDrawImage(pdfContext, CGRectMake(320, 735-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 330 , 750-row*40, maxinv, strlen(maxinv));
CGContextDrawImage(pdfContext, CGRectMake(450, 735-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 460 , 750-row*40, qtyorder, strlen(qtyorder));
CGContextDrawImage(pdfContext, CGRectMake(590, 735-row*40, 1, 40), columnImg.CGImage);
CGContextShowTextAtPoint (pdfContext, 600 , 750-row*40, price, strlen(price));
CGContextShowTextAtPoint (pdfContext, 0 , 733-row*40, borderLine, strlen(borderLine));
CGContextShowTextAtPoint (pdfContext, 0 , 733-row*40, borderLine1, strlen(borderLine1));
}
}
}
CGContextEndPage (pdfContext);
}
}
CGContextRelease (pdfContext);
答案 0 :(得分：1)
用于显示页码：
- (void) generatePdfWithFilePath: (NSString *)thefilePath
{
UIGraphicsBeginPDFContextToFile(thefilePath, CGRectZero, nil);
NSInteger currentPage = 0;
//Draw a page number at the bottom of each page.
currentPage++;
[self drawPageNumber:currentPage];
}
- (void)drawPageNumber:(NSInteger)pageNumber
{
NSString* pageNumberString = [NSString stringWithFormat:@"Page %d", pageNumber];
UIFont* theFont = [UIFont systemFontOfSize:12];
CGSize pageNumberStringSize = [pageNumberString sizeWithFont:theFont
constrainedToSize:pageSize
lineBreakMode:UILineBreakModeWordWrap];
CGRect stringRenderingRect = CGRectMake(20,
pageSize.height - 40.0,
pageSize.width - 2*20,
pageNumberStringSize.height);
[pageNumberString drawInRect:stringRenderingRect withFont:theFont lineBreakMode:UILineBreakModeWordWrap alignment:UITextAlignmentCenter];
}