好贴--iOS-关于UINavigationController的title不显示问题

 1 -(void)addTage:(Class)controller addName:(NSString *)name addImage:(NSString *)image addSelectImage:(NSString *)selectImage
 2 
 3 {
 4 
 5     
 6 
 7     UIViewController *vc = [[controller alloc] init];
 8 
 9     UINavigationController *cityNav = [[UINavigationControlleralloc]initWithRootViewController:vc];
10 
11     cityNav.tabBarItem.image = [UIImage imageNamed:image];
12 
13     cityNav.tabBarItem.selectedImage = [UIImage imageNamed:selectImage];
14 
15     cityNav.navigationBar.backgroundColor = [UIColor blueColor];
16 
17     cityNav.tabBarItem.title = name;
18 
19     cityNav.navigationBar.barStyle = UIBarStyleDefault;
20 
21     cityNav.navigationBar.barTintColor = [UIColor cyanColor];
22 
23     [self.navArray addObject:cityNav];
24 
25     
26 
27 }
28 
29  
30 
31     self.tabBarController.viewControllers = self.navArray;
32 
33  
34     self.window.rootViewController = self.tabBarController;