iOS file preview

Question

I want a file preview in application.
File is from web server (I have url of file.)
May can be any type. (image/audio/video/doc etc)

I want previewer like Finder previewer in Mac (by pressing space to any file in mac)

You have to write it yourself – Robert Oct 30 '12 at 10:37 — Robert, Oct 30 '12 at 10:37
http://stackoverflow.com/a/5837993/1106035 – Paresh Navadiya Oct 30 '12 at 10:50 — Paresh Navadiya, Oct 30 '12 at 10:50

score 2 · Answer 1 · answered Oct 30 '12 at 12:39

2

The easiest method, IMO, would be to simply use a UIWebView.

[self.webView loadRequest:[NSURLRequest requestWithURL:fileUrl]];

Where fileUrl is an NSURL pointing to the file's URL (remote or local). From my experience, UIWebViews are extremely capable of opening many different file types efficiently.

answered Oct 30 '12 at 12:39

cscott530

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The problem with UIWebView is that it leaks memory really bad specially with images. – Ahmed Ebaid Jun 01 '15 at 18:17

score 2 · Answer 2 · answered Sep 25 '13 at 00:30

2

You should use UIDocumentInteractionController. You can look at the tutorial here for an example of how to use it:

http://mobile.tutsplus.com/tutorials/iphone/previewing-and-opening-documents-with-uidocumentinteractioncontroller/

answered Sep 25 '13 at 00:30

gregschlom

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Ahmed Ebaid · Answer 3 · 2017-03-29T18:21:16.343

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The problem with UIWebView is that it has memory leaks that will cause your app to crash if you persistently preview images, you can check the behavior through instruments. I think the best way of doing so if you don't care about encryption is to use Quick Look Previewer. If you care about encryption, you can use UIImageView

edited Mar 29 '17 at 18:21

answered Jun 01 '15 at 18:16

Ahmed Ebaid

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iOS file preview

3 Answers3