Configuring bottom bar in QLPreviewController

Question

I have integrated QLPreviewController and UIDocumentInteractionController in my app, and it is working fine.

The only problem is- I want to configure the bottom toolbar, I want to remove the default toolbar items, which appear as shown in image below:

Bottom tool-bar with items to be removed

Is there any way to do so, please suggest.

set the toolbar to nil and call setneedsdisplay – itechnician Oct 08 '13 at 11:40 — itechnician, Oct 08 '13 at 11:40
Did you get any solution for this? Not working in iOS 7. – iSmita Oct 06 '14 at 05:33 — iSmita, Oct 06 '14 at 05:33

Mojtaba · Accepted Answer · 2013-10-16T23:33:37.697

2

Short Answer: NO, Not in IOS6+

Description:

One thing to note about QLPreviewController is that it's not meant to be customized. There were other libraries allowing you to change the functionality such as:

https://github.com/rob-brown/RBFilePreviewer

Which are not working in iOS 6+ since apple made a big change in QLPreviewController and it's technically running in a separate process. Although it might be possible (not sure) using private apis but your app will be rejected then.

You can find more info about this change here: http://oleb.net/blog/2012/10/remote-view-controllers-in-ios-6/

Hope this helps

edited Oct 16 '13 at 23:33

answered Oct 16 '13 at 23:19

Mojtaba

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Just thinking how whatsapp guys might have configured it? I mean they show a small 'delete icon' in bottom right and 'All Media Files' on top, which in default preview controller case appears at bottom right. – Devarshi Jun 20 '14 at 12:00
@Miraaj they might have their own viewer. not sure. also look at iOS8 stuff there might be something new in this regard – Mojtaba Jun 20 '14 at 21:01

score 2 · Answer 2 · answered Sep 02 '16 at 21:33

Subclass UIToolbar
Create UINavigationController using init(navigationBarClass:toolbarClass:) and supply UIToolbar subsclass created in step 1 for toolbarClass
Create QLPreviewController instance and push onto UINavigationController stack
Inside of UIToolbar subsclass override setItems(_:animated:). To remove all buttons call super with empty array super.setItems([], animated: false) or potentially you can add only buttons you want to keep.
Present UINavigationController created in step 2

Here is the example PreviewControllerHideBottomButtons

score 0 · Answer 3 · edited Dec 09 '13 at 16:28

Subclass QLPreviewController.
Search for the Toolbar in the view hierarchy.
Have a UIToolbar property in your class that has the same frame as the original toolbar.
Place your own toolbar above the default one with whatever buttons you want.
If you want it to be hidden as the default behavior of the QLPreviewController you can key value observe the hidden property of the default toolbar and present / hide your own accordingly.

Configuring bottom bar in QLPreviewController

3 Answers3