iOS7 QLPreviewController change navigation bar color?

Question

How can i set the translucent property in QLPreviewController i have tried the below code but its not working

  QLPreviewController *previewer = [[QLPreviewController alloc] init];
// Set data source
[previewer setDataSource:self];
[previewer setDelegate:self];
previewer.edgesForExtendedLayout = UIRectEdgeNone;
[previewer setCurrentPreviewItemIndex:index];
[self.navigationController.navigationBar setTranslucent:NO];
[self.navigationController setToolbarHidden:NO];
[[self navigationController] pushViewController:previewer animated:YES];

Thanks

score 3 · Answer 1 · answered Feb 06 '14 at 10:43

You can use this:

UINavigationBar *navBar =  [UINavigationBar appearanceWhenContainedIn:[QLPreviewController class], nil];
[navBar setBackgroundImage:[UIImage imageNamed:@"navigation-bg-ios7.png"] forBarMetrics:UIBarMetricsDefault];

I've tried it and it works.

score 2 · Answer 2 · answered Feb 23 '18 at 12:05

Swift 3 & 4 this works for me as of February 2018

import QuickLook

UINavigationBar.appearance(whenContainedInInstancesOf: [QLPreviewController.self]).setBackgroundImage(UIImage.init(color: primaryColor), for: .default)

this is the image with color func in an extension

extension UIImage {

    //image with color
    convenience init?(color: UIColor) {
        let rect = CGRect(x: 0.0, y: 0.0, width: 1.0, height: 1.0)
        UIGraphicsBeginImageContext(rect.size)
        let path = UIBezierPath(rect: rect)
        color.setFill()
        path.fill()
        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        self.init(cgImage: image!.cgImage!)
    }
}

score 0 · Answer 3 · answered Jan 05 '14 at 17:07

0

[[UINavigationBar appearance] setBarTintColor:[UIColor redColor]];

Note: Only works in iOS7

answered Jan 05 '14 at 17:07

valheru

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iOS7 QLPreviewController change navigation bar color?

3 Answers3