我正在使用這個code.but pdfDocumentRef3即將到來零。所以它的崩潰。 請讓我知道我在做錯什麼。 讓cachesDirectoryPath = NSSearchPathForDirectoriesInDomains(.cachesDirectory,.userDomainMask,真)[0] 讓filePath1 = 「(cachesDirectoryPath)/ ShowPdf_(self.airportMainId).PDF」 讓FILEPATH2 =「(cachesDirectoryPath)/ ImagePdf_(self.airportMainId) .PDF 讓filePath3 = cachesDirectoryPath.appending( 「/ Combine_(self.airportMainId).PDF」)如何在swift 3.0中將一個pdf合併到另一個pdf文件中。
self.mergeTwoPDF(filePath1:filePath1,FILEPATH2:FILEPATH2,combinePath:filePath3)
func mergeTwoPDF(filePath1: String, filePath2: String, combinePath: String) {
let pdfURL1 = NSURL(fileURLWithPath: filePath1)
let pdfURL2 = NSURL(fileURLWithPath: filePath2)
let pdfURL3 = NSURL(fileURLWithPath: combinePath)
let pdfDocumentRef1 = CGPDFDocument(pdfURL1 as CFURL)
let pdfDocumentRef2 = CGPDFDocument(pdfURL2 as CFURL)
let pdfDocumentRef3 = CGPDFDocument(pdfURL3 as CFURL)
let numberOfPages1 = pdfDocumentRef1!.numberOfPages
let numberOfPages2 = pdfDocumentRef2!.numberOfPages
let writeContext = CGContext(pdfDocumentRef3 as! CFURL, mediaBox: nil, nil)
var page: CGPDFPage?
var mediaBox: CGRect
for var i in 0..<numberOfPages1 {
page = pdfDocumentRef1!.page(at: i)
mediaBox = page!.getBoxRect(.mediaBox)
writeContext!.beginPage(mediaBox: &mediaBox)
writeContext!.drawPDFPage(page!)
writeContext!.endPage()
}
for var i in 0..<numberOfPages2 {
page = pdfDocumentRef2!.page(at: i)
mediaBox = page!.getBoxRect(.mediaBox)
writeContext!.beginPage(mediaBox: &mediaBox)
writeContext!.drawPDFPage(page!)
writeContext!.endPage()
}
writeContext!.closePDF();
}