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我使用與此類似的代碼創建了一個帶有cgcontext的pdf。它創建一個PDF文件與單個頁面。爲我的pdf創建第二個頁面需要什麼?將頁面添加到由cgcontext生成的pdf
換句話說,我想將內容分佈在兩頁上。無論如何要做到這一點?
// Make the pdf A4 size.
CGRect sizeOfA4 = CGRectMake(0, 0, 595, 842);
CGContextRef pdfContext = [self createPDFContext:sizeOfA4 path:(CFStringRef)writableDBPath];
CGContextBeginPage (pdfContext,nil); // 6
// push the matrix
CGContextSaveGState(pdfContext);
// turn PDF upsidedown
CGAffineTransform transform = CGAffineTransformIdentity;
// translates the cooridinate system by the height of the view.
transform = CGAffineTransformMakeTranslation(xPos, aUIView.bounds.size.height+yPos);
// scales existing transform
transform = CGAffineTransformScale(transform, 1.0*scale, -1.0*scale);
CGContextConcatCTM(pdfContext, transform);
// Draw view into PDF
// Is renderInContext deprecated? Something to look into.
[aUIView.layer renderInContext:pdfContext];
// pop the matrix
CGContextRestoreGState(pdfContext);
// turn PDF upsidedown
CGAffineTransform transformB = CGAffineTransformIdentity;
// translates the cooridinate system by the height of the view.
transformB = CGAffineTransformMakeTranslation(0.0, 842);
// scales existing transform
transformB = CGAffineTransformScale(transformB, 1.0, -1.0);
CGContextConcatCTM(pdfContext, transformB);
CGContextSelectFont (pdfContext, "Helvetica", 14, kCGEncodingMacRoman);
CGContextSetTextDrawingMode (pdfContext, kCGTextFill);
CGContextSetRGBFillColor (pdfContext, 0, 0, 0, 1);
CGContextSetTextMatrix(pdfContext, CGAffineTransformMake(1.0,0.0, 0.0, -1.0, 0.0, 0.0));
// loop through array of dictionaries of texts
for (id object in arrayOfTexts) {
NSString *textNSString = [object objectForKey:@"text"];
const unsigned char *text = (const unsigned char *) [textNSString UTF8String];
float x = [[object objectForKey:@"x"] floatValue];
float y = [[object objectForKey:@"y"] floatValue];
CGContextShowTextAtPoint (pdfContext, x, y, text, strlen(text));
}
CGContextEndPage (pdfContext); // 8
CGContextRelease (pdfContext);
你解決了這個問題嗎?如果是這樣,請發佈答案。 – Hitesh