iOS-如何使用动画隐藏/显示UITabBarController的标签栏？

Question

我对iOS的UITabBarController标签栏有疑问.

我正在使用a UITabBarController来显示一些视图,但我希望视图能够以尽可能大的屏幕显示.是否可以隐藏标签栏以使其通常不显示,直到用户触摸屏幕,然后标签栏将(带动画)显示在底部.然后,几秒钟后,如果没有任何操作,那么标签栏将再次消失,以便视图再次返回全屏？

Answer 1

这就是你展示它的方式

- (void)showTabBar:(UITabBarController *)tabbarcontroller
{
    tabbarcontroller.tabBar.hidden = NO;
    [UIView animateWithDuration:kAnimationInterval animations:^{
        for (UIView *view in tabbarcontroller.view.subviews) {
            if ([view isKindOfClass:[UITabBar class]]) {
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y-49.f, view.frame.size.width, view.frame.size.height)];
            }
            else {
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, view.frame.size.height-49.f)];
            }
        }
    } completion:^(BOOL finished) {
        //do smth after animation finishes
    }];
}

......这就是你隐藏它的方式

- (void)hideTabBar:(UITabBarController *)tabbarcontroller
{
    [UIView animateWithDuration:kAnimationInterval animations:^{
        for (UIView *view in tabbarcontroller.view.subviews) {
            if ([view isKindOfClass:[UITabBar class]]) {
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y+49.f, view.frame.size.width, view.frame.size.height)];
            }
            else {
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, view.frame.size.height+49.f)];
            }
        }
    } completion:^(BOOL finished) {
        //do smth after animation finishes
        tabbarcontroller.tabBar.hidden = YES;
    }];
}