iphone - 点击时隐藏导航栏

Question

我正在为我的应用制作幻灯片。我想要它几乎像苹果的照片应用程序。几乎完成了一些小问题。我想在屏幕上点击时隐藏导航栏，在再次点击时显示它。但是我不确定该怎么做。

Answer 1

// catch the screen tap and call a method to hide the navigation bar
UITapGestureRecognizer *gesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(toggleNavBar:)];
[self.view addGestureRecognizer:gesture];
[gesture release];

- (void)toggleNavBar:(UITapGestureRecognizer *)gesture {
    BOOL barsHidden = self.navigationController.navigationBar.hidden;
    [self.navigationController setNavigationBarHidden:!barsHidden animated:YES];
}