This may sound a newbie question, however I m new iOS dev.
I m calls following viewDidLoad
CGFloat tabBarHeight = self.tabBarController.tabBar.frame.size.height;
CGFloat navigationBarHegith = self.navigationController.navigationBar.bounds.size.height;
两者的回报价值为0,为什么如此? 意思是航行 Bar和Btab Bar已经装上记忆和开端。
view WillAppear。
更可能的是,你的观察控制员没有刺铁控制器和导航控制器。
2. 检查自制银行主计长和自食其力的价值 主计长,如果他们为零(零),与java或C++不同,在零时采用的方法将仅仅是回报0,即你们的回报。
it works fine for me. make shure, that your tab bar and nav. bar are allready inited, when you aske there properties. Do it in - (void)viewWillAppear:(BOOL)animated method.
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