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下面的代码是我一直在设置导航栏外观tintcolor的地方。我将如何添加背景图片?导航栏外观和背景图片
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[[UINavigationBar appearance] setBarTintColor:
[UIColor colorWithRed:0.158 green:0.457 blue:0.405 alpha:1]];