I am unable to catch exceptions using PDFNet and Swift on iOS

[Ryan]

Question:

I tried putting it between a try-catch:

do{
   let doc=try PTPDFDoc(filepath: url)
}catch{
}

But the error isn't handled, furthermore the compiler alerts me this:

No calls to throwing functions occur within 'try' expression

Answer:

Please see this blog post
https://blog.pdftron.com/2014/09/22/using-pdfnet-from-a-swift-project-on-ios/

[Diego Dias]

The post doesn't answer the question. 

And I have the same question. 

Do you found some solution for that, Ryan?

[Ryan]

Thank you for bringing this to our attention.

Please add the attached category files to your Swift project, and include the header in your bridging header. The category will add a new class method to PTPDFNet, catchException.

You can then use the following pattern to handle exceptions thrown by PDFNet:

do
{
    try PTPDFNet.catchException {
        // code that may throw an exception
        doc = PTPDFDoc(filepath: docPath!)
    }
}
catch
{
    print("Caught exception")
}

This method will be included in the next version of PDFNet (without the need to add it via a category).