iOS - SDK - How do I open large keynote files in UIWebView?

Question

I am trying to load a large Keynote file (~150MB) into a UIWebView and I keep getting memory warnings and my app crashes.

Is there a way around this?

What is the proper way to open files that are this large without opening them in another app?

Answer 1

When you open a file in UIWebView directly from the url, the downloaded content is stored temporarily in RAM. The RAM is a shared space for the whole device, which has to perform other OS related tasks. Hence Your app is being killed by iOS due to memory pressure & resource crunch.

It is advisable to directly write your content into the file in NSDocumentsDirectory in background & load the file in UIWebView later.

With my knowledge I can suggest you the following.

The download Part

• JGDownloadAcceleration A multipart Download Accelerator Library.
• TCBlobDownload Competitive large files downloads for iOS

The Preview Part

• CGPDF APIs Discussion
• Another Discussion

Hope that helps.