使用动画隐藏导航控制器和选项卡栏控制器

Question

我试图在触摸按钮时同时隐藏一个uitabbarcontroller和uinavigationController。我在这里找到了一个非常不错的代码片段，如何隐藏uitabbarcontroller，但是在尝试隐藏和动画UinavigationController和TabbarController时，我有问题。当他们使用self.tabBarController.tabBar.hidden = YES隐藏Tabar时，我还发现了很多示例，但这仅掩盖了按钮项目，而不是底部的黑条。

在周围玩了很多东西之后，我可以正确地使两者都适合动画，因为我认为这与导航控制器的隐藏有关，这使整个窗口的大小都可以随时更改。

-(IBAction)touchImage:(id)sender {
    if (isImageFullScreen) {
        isImageFullScreen = NO;
        [self.navigationController setNavigationBarHidden:NO animated:YES];
        [UIView transitionWithView:self.view
                          duration:0.5
                           options:UIViewAnimationOptionCurveLinear
                        animations:^
         {
             hotelImageButton.frame = CGRectMake(0,20,320,92);
             [self showTabBar:self.tabBarController];
         }
                        completion:^(BOOL finished)
         {
         }];
    } else {
        isImageFullScreen = YES;
        [self.navigationController setNavigationBarHidden:YES animated:YES];
        [UIView transitionWithView:self.view
                          duration:0.5
                           options:UIViewAnimationOptionCurveLinear
                        animations:^
         {
             hotelImageButton.frame = CGRectMake(0,0,320,480);
             [self hideTabBar:self.tabBarController];
         }
                        completion:^(BOOL finished)
         {                                  
         }];
    }

}

hidetabbar和showtabbar方法是我上面链接的其他帖子的方法。

我还尝试了其他一些组合，但我无法使其看起来不错。有什么想法吗？

预先感谢。

Answer 1

我现在尝试了该代码，我看到Uitabbar Show Animation无法顺利进行。我设法通过调整塔巴尔的持续时间显示动画的持续时间较低。

[UIView setAnimationDuration:0.2];

希望有效。

编辑：请尝试此代码，将父视图大大在1个动画交易中大大更大，以使只有栏被隐藏并显示内容。

- (IBAction)TestButton1:(UIButton *)sender {
if(!isAnimating){
    if(isTabBarAndNavBarHidden){
        [UIView transitionWithView:self.view
                          duration:0.5
                           options:UIViewAnimationOptionTransitionNone
                        animations:^
         {
             isAnimating=YES;
             CGFloat statusBar_height=[[UIApplication sharedApplication] statusBarFrame].size.height;
             CGFloat screen_height=[UIScreen mainScreen].bounds.size.height;
             [self.tabBarController.view setFrame:CGRectMake(self.tabBarController.view.frame.origin.x, 0, self.tabBarController.view.frame.size.width, screen_height)];
             [self.navigationController.navigationBar setFrame:CGRectMake(self.navigationController.navigationBar.frame.origin.x, statusBar_height, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
         }
                        completion:^(BOOL finished)
         {
             isTabBarAndNavBarHidden=NO;
             isAnimating=NO;
         }];
    }else{
        [UIView transitionWithView:self.view
                          duration:0.5
                           options:UIViewAnimationOptionTransitionNone
                        animations:^
         {
             isAnimating=YES;
             CGFloat statusBar_height=[[UIApplication sharedApplication] statusBarFrame].size.height;
             CGFloat screen_height=[UIScreen mainScreen].bounds.size.height;
             [self.tabBarController.view setFrame:CGRectMake(self.tabBarController.view.frame.origin.x, statusBar_height-self.navigationController.navigationBar.frame.size.height, self.tabBarController.view.frame.size.width, screen_height+self.navigationController.navigationBar.frame.size.height+self.tabBarController.tabBar.frame.size.height-statusBar_height)];
             [self.navigationController.navigationBar setFrame:CGRectMake(self.navigationController.navigationBar.frame.origin.x, 0, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];

         }
                        completion:^(BOOL finished)
         {
             isTabBarAndNavBarHidden=YES;
             isAnimating=NO;
         }];
    }
}

}

Answer 2

此代码适用于iPhone 4/4s。

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    if (self.lastContentOffset > scrollView.contentOffset.y)
    {
          NSLog(@"Scrolling up");
        [UIView animateWithDuration:.5 delay:0.0 options:UIViewAnimationOptionCurveEaseIn animations:^{

            [self.tabBarController.tabBar setFrame:CGRectMake(0, 430, 320, 50)];
             [self.navigationController.navigationBar setFrame:CGRectMake(0, 20, self.navigationController.navigationBar.frame.size.width,self.navigationController.navigationBar.frame.size.height)];
             } completion:
           ^(BOOL finished) {
                [UIView animateWithDuration:.5 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{

                      } completion:^(BOOL finished) {
                              //
                        }];
            }];
    }
    else if (self.lastContentOffset < scrollView.contentOffset.y)
    {
        [UIView animateWithDuration:.5 delay:0.0 options:UIViewAnimationOptionCurveEaseIn animations:^{
               [self.navigationController.navigationBar setFrame:CGRectMake(0, -60, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
            [self.tabBarController.tabBar setFrame:CGRectMake(0, 480, 320, 50)];

        } completion:
         ^(BOOL finished) {
             [UIView animateWithDuration:.5 delay:2.0 options:UIViewAnimationOptionCurveEaseIn animations:^{
             } completion:^(BOOL finished) {
             }];
         }];

        NSLog(@"Scrolling Down");
    }
    self.lastContentOffset = scrollView.contentOffset.y;
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    [self.tabBarController.tabBar setFrame:CGRectMake(0, 430, 320, 50)];
     [self.navigationController.navigationBar setFrame:CGRectMake(0, 20, self.navigationController.navigationBar.frame.size.width,self.navigationController.navigationBar.frame.size.height)];

    // Do any additional setup after loading the view.
}