UINavigationBar appearance crash in iOS 7.0

Question

        - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
        {      
            [[UINavigationBar appearance] setTintColor:[UIColor colorWithRed:230.0f/255.0f green:200.0f/255.0f blue:160.0f/255.0f alpha:1.0f]];
            >>EXC_BAD_ACCESS
            [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"navBarBackground"] forBarMetrics:UIBarMetricsDefault];
            // Override point for customization after application launch.
            return YES;
        }

in didFinishLaunchingWithOptions I'm doing a simple code that works fine in the iOS 7.1 but does not work in 7.0

Error: CGImageProviderCreate: invalid image provider size: 128 x 0.

Error: CGImageCreate: invalid image size: 128 x 0. Unable to create image from csi bitmap data

navBarBackground located in Media.xcassets. Im using Xcode 5.1

Any idea how to fix it?

Answer 1

I solved the problem. In this image in Media.xcassets, you must set the slicing at least by 1px

Answer 2

If you want to tint the UINavigationBar, you have to use setBarTintColor:

[[UINavigationBar appearance] setBarTintColor:[UIColor colorWithRed:230.0f/255.0f green:200.0f/255.0f blue:160.0f/255.0f alpha:1.0f]];

Edit:

Your background image for the UINavigationBar has to have 320x64 pixels and need to be PNG.