Change color of ios8 navigation bar

Question

I am working on the iOS8 extension (photo editing extension)

I tried this method to update the color of the navigation bar, but failed:

[[UINavigationBar appearance] setBarTintColor:[UIColor yellowColor]]; [[UINavigationBar appearance] setTintColor:[UIColor blueColor]]; [[UINavigationBar appearance] setBackgroundColor:[UIColor blueColor]]; 

Displays the default translucent gray navigation bar.

Does anyone have any ideas on how to change the color of the navigation bar in iOS8 extension?

Answer 1

First try self.navigationController.navigationBar.barTintColor = [UIColor yellowColor]; . This should work for some host applications, but not for all. Because some host applications adjust colors in the UIAppearance settings.

I found the information here: https://pspdfkit.com/blog/2017/action-extension/
According to the link above, the extension will “collect UIAppearance settings from its host application,” and this has a higher priority than the “setColor” message that you send to the instance.

So what you can do is configure the plist extension:
In the NSExtension dictionary NSExtension you can specify the NSExtensionOverridesHostUIAppearance key and set the value to YES . This will force your extension to override the UIAppararance setting for the host application. Unfortunately, this is only available in iOS 10 and later.

We hope you find this helpful.

Answer 2

Try setting the transparency of the UINavigationBar to NO , as shown below, I believe that it should start picking colors

 [[UINavigationBar appearance] setTranslucent:NO]; 

Here's the Apple Documentation for the UINavigationBar translucent property

Answer 3

I put your code in appDelegate didFinishLaunchWithOption

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. [[UINavigationBar appearance] setBarTintColor:[UIColor yellowColor]]; [[UINavigationBar appearance] setTintColor:[UIColor blueColor]]; [[UINavigationBar appearance] setBackgroundColor:[UIColor blueColor]]; return YES; } 

And working...