当我将背景图片添加到uinavigationbar时，它会在uinavigationbar上隐藏我的标题，这是我的代码，-(BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions{......[[UINavigationBarappearance]setBackgroundImage:[UIImageimageNamed:@"BarBg.png"]forBarMetrics:UIBarMetricsDefault];}类代码:inthei

我已经创建了自定义导航Controller，我要添加，左边是日期，右边是后退按钮，后退按钮旁边是标题。我试图添加一个标签，但它不起作用。请教我一个方法UINavigationBar*naviBarObj=[[UINavigationBaralloc]initWithFrame:CGRectMake(0,0,1024,66)];UILabel*navLabel=[[UILabelalloc]initWithFrame:CGRectMake(20,8,280,30)];navLabel.text=@"MyText";[self.navigationController.navigation