第一種做法：
缺點(diǎn): 這樣做有一個缺點(diǎn)就是在切換tabBar的時候有一個導(dǎo)航欄向上消失的動畫
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self.navigationController setNavigationBarHidden:YES animated:YES];
}
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
[self.navigationController setNavigationBarHidden:NO animated:YES];
}
第二種做法：
@interface MyPageViewController () <UINavigationControllerDelegate>
@end
@implementation MyPageViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 設(shè)置導(dǎo)航控制器的代理為self
self.navigationController.delegate = self;
}
#pragma mark - UINavigationControllerDelegate
// 將要顯示控制器
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
// 判斷要顯示的控制器是否是自己
BOOL isShowHomePage = [viewController isKindOfClass:[self class]];
[self.navigationController setNavigationBarHidden:isShowHomePage animated:YES];
}
