//取消navigationBar半透明状态
self.navigationBar.translucent=NO;
//设置navigationBar颜色
self.navigationBar.barTintColor=MyColor(41, 127, 202);
//设置navigationBar字体颜色
[self.navigationBar setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor],NSForegroundColorAttributeName, nil]];