当数据存储在PList,UITableView中时,如何生成PDF?
我对ios非常陌生,这也会生成pdf。
提前谢谢。
发布于 2013-12-12 11:28:40
编辑:
假设您的plist结构为:
首先,================应该添加框架、coreText和石英核心。它们导入并定义如下宏:
#import <QuartzCore/QuartzCore.h>
#import <CoreText/CoreText.h>
#define LEFT_MARGIN 25
#define RIGHT_MARGIN 25
#define TOP_MARGIN 35
#define BOTTOM_MARGIN 50
#define BOTTOM_FOOTER_MARGIN 32
#define DOC_WIDTH 1004
#define DOC_HEIGHT 768
您可以以这种方式获取plist数据:
NSString *path = [[NSBundle mainBundle] pathForResource:@"recipes" ofType:@"plist"];
// Load the file content and read the data into arrays
NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:path];
//编辑
tableData = [dict objectForKey:@"RecipeName"];//tabledata is global array
self.textToDraw = [tableData objectAtIndex:0];
//编辑
但是,下面的代码可以创建动态pdf:
-(void) btnDrawPdf
{
// pageSize = CGSizeMake(612, 792);
NSString *fileName = @"DemoNetwrk.pdf";
NSString *fontName = @"Helvetica";
// NSString *textToDraw =@“您的数据来自plist ";现在注释一下
//[self generatePdfWithFilePath:pdfFileName];
[self createPDF:fileName **withContent:self.textToDraw** forSize:14 forFontName:fontName andColor:[UIColor blackColor]];
}
//多页pdf和pdf将保存在doc目录library>Application Support>iPhoneSimulator>library>Documents (完美在IOS4.3中)
- (void) createPDF:(NSString *)fileName withContent:(NSString *)content forSize:(int)fontSize forFontName:(NSString *)fontName andColor:(UIColor *)color
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *newFilePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:fileName];
CGRect a4Page = CGRectMake(0, 0, DOC_WIDTH, DOC_HEIGHT);
NSDictionary *fileMetaData = [[NSDictionary alloc] init];
if (!UIGraphicsBeginPDFContextToFile(newFilePath, a4Page, fileMetaData )) {
NSLog(@"error creating PDF context");
return;
}
BOOL done = NO;
CGContextRef context = UIGraphicsGetCurrentContext();
CFRange currentRange = CFRangeMake(0, 0);
CGContextSetTextDrawingMode (context, kCGTextFill);
CGContextSelectFont (context, [fontName cStringUsingEncoding:NSUTF8StringEncoding], fontSize, kCGEncodingMacRoman);
CGContextSetFillColorWithColor(context, [color CGColor]);
// Initialize an attributed string.
CFMutableAttributedStringRef attrString = CFAttributedStringCreateMutable(kCFAllocatorDefault, 0);
CFAttributedStringReplaceString (attrString, currentRange, (CFStringRef)content);
// Create the framesetter with the attributed string.
CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString(attrString);
do {
UIGraphicsBeginPDFPage();
CGMutablePathRef path = CGPathCreateMutable();
CGRect bounds = CGRectMake(LEFT_MARGIN,
TOP_MARGIN,
DOC_WIDTH - RIGHT_MARGIN - LEFT_MARGIN,
DOC_HEIGHT - TOP_MARGIN - BOTTOM_MARGIN);
CGPathAddRect(path, NULL, bounds);
// Create the frame and draw it into the graphics context
CTFrameRef frame = CTFramesetterCreateFrame(framesetter, currentRange, path, NULL);
if(frame) {
CGContextSaveGState(context);
CGContextTranslateCTM(context, 0, bounds.origin.y);
CGContextScaleCTM(context, 1, -1);
CGContextTranslateCTM(context, 0, -(bounds.origin.y + bounds.size.height));
CTFrameDraw(frame, context);
CGContextRestoreGState(context);
// Update the current range based on what was drawn.
currentRange = CTFrameGetVisibleStringRange(frame);
currentRange.location += currentRange.length;
currentRange.length = 0;
CFRelease(frame);
}
// If we're at the end of the text, exit the loop.
if (currentRange.location == CFAttributedStringGetLength((CFAttributedStringRef)attrString))
done = YES;
}
while(!done);
UIGraphicsEndPDFContext();
// [fileMetaData release];
CFRelease(attrString);
CFRelease(framesetter);
}
我终于明白了这一点:
它会帮助你..。
发布于 2013-12-12 11:00:04
This可能就是你要找的东西。
在将其转换为PDF之前,您应该将Plist呈现为屏幕(加载数据并将其显示在UIView
或从UIView
继承的类中)。
https://stackoverflow.com/questions/20541412
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