How can I create a horizontal gradient background for my iOS nav bar?

Question

I know how to set a navigation bar background color (with barTintColor), but now I am working on an iOS app that calls for a horizontal gradient (not the typical vertical gradie

Answer 1

You can use that :

[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"gardientImage"] forBarMetrics:UIBarMetricsDefault];

for ios 7 navigation bar height is 64px