How to change UIDocumentInteractionController Done button text and background color

Question

How to change the background color and text color of done button? Is there a way that I can change the navigationbar color and navigation bar title color and bottom bar color also? Attached screenshot for reference:

Answer 1

I solved it. Here is the code working for me perfectly:

func documentInteractionControllerViewControllerForPreview(_ controller: UIDocumentInteractionController) -> UIViewController {
    UINavigationBar.appearance().barTintColor = Colors.redColor()
    UINavigationBar.appearance().tintColor = UIColor.white
    UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName : UIColor.white, NSFontAttributeName: UIFont.systemFont(ofSize: 14, weight: UIFontWeightBold)]
    return self
}

Answer 2

I have a idear to change the bar color:

let allNavigationBar = UINavigationBar.appearance()
allNavigationBar.barTintColor = UIColor.red  // change the bar background color
allNavigationBar.tintColor = UIColor.black // change the Done button's tintColor

let alloolbar = UIToolbar.appearance()
allToolbar.barTintColor = UIColor.red  // dones't work, try backgroundImage
allToolbar.backgroundColor = UIColor.blue // dones't work
allToolbar.tintColor = UIColor.brown // change the toolbar's item tint color

but this method has a great effect，all your UINavigationBarand UIToolBar will make that change.

Hope anyone else can give a better solusion.

Answer 3

It's a little hacky as its relying on the fact that QLPreviewController is the class implementing the UIDocumentInteractionController but something like this is the least intrusive solution. Do it before you display the UIDocumentInteractionController

import QuickLook

UIBarButtonItem.appearance(whenContainedInInstancesOf [QLPreviewController.self]).tintColor = UIColor.black