Rendering PDF in Apple TV tvOS

Question

I am working on an addition to my tvOS app that would allow viewing of PDFs stored in the app. However, without UIWebView, I\'m at a loss on how to do this. I\'ve asked questi

Answer 1

The tvOS documentation contains a section on creating, viewing and transforming PDF documents so I think it contains the functionality you need.

There’s lots of example code on that page, but here’s some code I use on iOS for the same purpose. It should work on tvOS, but I don’t have a way to test it:

func imageForPDF(URL: NSURL, pageNumber: Int, imageWidth: CGFloat) -> UIImage {
    let document = CGPDFDocumentCreateWithURL(URL)
    let page = CGPDFDocumentGetPage(document, pageNumber)
    var pageRect = CGPDFPageGetBoxRect(page, .MediaBox)
    let scale = imageWidth / pageRect.size.width
    pageRect.size = CGSizeMake(pageRect.size.width * scale, pageRect.size.height * scale)
    pageRect.origin = CGPointZero

    UIGraphicsBeginImageContext(pageRect.size)
    let ctx = UIGraphicsGetCurrentContext()
    CGContextSetRGBFillColor(ctx, 1.0, 1.0, 1.0, 1.0) // White background
    CGContextFillRect(ctx, pageRect)
    CGContextSaveGState(ctx)

    // Rotate the PDF so that it’s the right way around
    CGContextTranslateCTM(ctx, 0.0, pageRect.size.height)
    CGContextScaleCTM(ctx, 1.0, -1.0)
    CGContextConcatCTM(ctx, CGPDFPageGetDrawingTransform(page, .MediaBox, pageRect, 0, true))

    CGContextDrawPDFPage(ctx, page)
    CGContextRestoreGState(ctx)

    let image = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()

    return image
}