# Manage your iOS status bar with view controllers

Nutrient requires the modern `UIViewControllerBasedStatusBarAppearance` mode introduced in iOS 7 to be set to `YES` in your `Info.plist` file. This is the default setting and uses the modern view controller-based API for status bar manipulation. The older `UIApplication`-based API was deprecated in iOS 9 and is unavailable when compiling extensions.

If your application uses the legacy API, migrate your code to the new view controller-based one, otherwise Nutrient won’t be able to manage the status bar for you. We detect this issue and show a warning dialog for debug builds.

In older versions, we tried supporting both modes, but they are too different and Apple clearly explained that view controller-based status bar management is the future and that [using global state to manage the status bar is a “Bad Idea](https://twitter.com/smileyborg/status/740033250530197504),” so we fully focus on the new API to deliver a superior product.

You can learn more about this in [Apple’s Transitioning Guide](https://developer.apple.com/library/archive/documentation/UserExperience/Conceptual/TransitionGuide/AppearanceCustomization.html).

If everything works as intended and all you want to do is disable the warning, set the following:

### SWIFT

```swift

PSPDFKit.SDK.shared.setValue(true, forKey: "com.pspdfkit.development.suppress-warning-alerts")

```

### OBJECTIVE-C

```objc

PSPDFKitGlobal.sharedInstance[@"com.pspdfkit.development.suppress-warning-alerts"] = @YES;

```

Note that we only present the warning during development, so this actually doesn’t change anything in production builds.
---

## Related pages

- [Advanced CocoaPods integration](/guides/ios/miscellaneous/advanced-cocoapods-integration.md)
- [App Transport Security](/guides/ios/pspdfkit-instant/app-transport-security.md)
- [Advanced Carthage integration](/guides/ios/miscellaneous/advanced-carthage-integration.md)
- [Bitcode](/guides/ios/faq/bitcode.md)
- [Carthage integration](/guides/ios/best-practices/carthage-integration.md)
- [Framework Size](/guides/ios/faq/framework-size.md)
- [Airdrop](/guides/ios/features/airdrop.md)
- [Customizing The Page Number](/guides/ios/customizing-pdf-pages/customizing-the-page-number.md)
- [Nightly Builds](/guides/ios/best-practices/nightly-builds.md)
- [About Memory Usage](/guides/ios/memory-and-storage/about-memory-usage.md)
- [Customizing the log level on iOS](/guides/ios/features/logging.md)
- [iOS PDF SDK security](/guides/ios/faq/sdk-security.md)
- [Powered By Nutrient](/guides/ios/miscellaneous/powered-by-nutrient.md)
- [Optimize PDF documents for mobile rendering on iOS](/guides/ios/miscellaneous/optimize-pdf-documents-for-mobile-rendering.md)
- [Third Party Compatibility](/guides/ios/miscellaneous/third-party-compatibility.md)
- [Reduce App Size](/guides/ios/best-practices/reduce-app-size.md)
- [Modifying permissions in your iOS app](/guides/ios/getting-started/permissions.md)
- [Transferring File Edits To A Server](/guides/ios/best-practices/transferring-file-edits-to-a-server.md)
- [Saving Data Externally](/guides/ios/memory-and-storage/saving-data-externally.md)
- [Using Document Efficiently](/guides/ios/getting-started/using-document-efficiently.md)
- [Using Automatic Saving Safely](/guides/ios/best-practices/using-automatic-saving-safely.md)
- [Strategies For Multiple Bundle Ids](/guides/ios/faq/strategies-for-multiple-bundle-ids.md)
- [Youtube Links](/guides/ios/miscellaneous/youtube-links.md)
- [Version Numbering](/guides/ios/best-practices/version-numbering.md)