ios導航欄

1.狀態欄的高度 20

[[UIApplication sharedApplication] statusBarFrame].size.height

2.Navigation的高度 44

self.navigationController.navigationBar.frame.size.height

3. 狀態欄顏色

    self.navigationController.navigationBar.barTintColor = [UIColor blackColor];//背景

    self.navigationController.navigationBar.barStyle = UIBarStyleBlack;//字體顏色

    [self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];//返回按鈕顏色