从uiviewcontroller中删除tabbar控制器

Question

我正在从uview控制器中添加一个tabbarcontroller。请检查我的代码：

UITabBarController *tabBarController = [[UITabBarController alloc] init]; 
      NSMutableArray *arrControllers = [[NSMutableArray alloc] init]; 
      for(int i = 0; i<arrTabs.count;i++){ 
       NSArray *arr = [arrTabs objectAtIndex:i]; 
       if([[arr objectAtIndex:0] isEqualToString:@"PICS"]){ 
        picTabViewController *pics = [[picTabViewController alloc] initWithNibName:@"picTabViewController" bundle:nil]; 
        UINavigationController *picsNVC = [[UINavigationController alloc] initWithRootViewController:pics]; 
        picsNVC.tabBarItem.image = [UIImage imageNamed:@"tab-news.png"]; 
        picsNVC.tabBarItem.title = [arr objectAtIndex:1]; 
        [arrControllers addObject:picsNVC]; 
       } 
       if([[arr objectAtIndex:0] isEqualToString:@"MAP"]){ 
        mapTabViewController *maps = [[mapTabViewController alloc] initWithNibName:@"mapTabViewController" bundle:nil]; 
        UINavigationController *mapsNVC = [[UINavigationController alloc] initWithRootViewController:maps]; 
        mapsNVC.tabBarItem.image = [UIImage imageNamed:@"tab-news.png"]; 
        mapsNVC.tabBarItem.title = [arr objectAtIndex:1]; 
        [arrControllers addObject:mapsNVC]; 
       } 
       if([[arr objectAtIndex:0] isEqualToString:@"HTML"]){ 
        htmlTabViewController *html = [[htmlTabViewController alloc] initWithNibName:@"htmlTabViewController" bundle:nil]; 
        UINavigationController *htmlNVC = [[UINavigationController alloc] initWithRootViewController:html]; 
        htmlNVC.tabBarItem.image = [UIImage imageNamed:@"tab-news.png"]; 
        htmlNVC.tabBarItem.title = [arr objectAtIndex:1]; 
        [arrControllers addObject:htmlNVC]; 
       } 
      } 
      tabBarController.viewControllers = arrControllers; 
      self.tabBarController.selectedIndex = 0; 
      [self.view.window addSubview:tabBarController.view]; 

根据需要添加标签栏控制器。但是现在我想添加一个按钮返回到上一页，或者您可以说从添加它的视图控制器中删除tabbar及其视图控制器。有人可以建议我怎么做？
请记住，我已经从viewcontroller中添加了tabbarcontroller，而不是app delegate。

问候
潘卡

Answer 1

我已经采取了一个的TabBar和Alloc-INIT一次，然后我会告诉&隐藏在不同的UIView秒。
因此，无需一直删除& alloc。

显示的TabBar

[self showTabBar:self.tabBarController]; 

隐藏的TabBar

[self hideTabBar:self.tabBarController]; 

代码显示 - >它会自动通过设置 'Y' 出现::

- (void) showTabBar:(UITabBarController *) tabbarcontroller 
{ 
    [UIView beginAnimations:nil context:NULL]; 
    [UIView setAnimationDuration:0.4]; 
    for(UIView *view in tabbarcontroller.view.subviews) 
    { 
     if([view isKindOfClass:[UITabBar class]]) 
     { 
      if ([[UIScreen mainScreen] bounds].size.height == 568) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, 519, view.frame.size.width, view.frame.size.height)]; 
      } 
      else if ([[UIScreen mainScreen] bounds].size.height == 480) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, 431, view.frame.size.width, view.frame.size.height)]; 
      } 
     } 
     else 
     { 
      if ([[UIScreen mainScreen] bounds].size.height == 568) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 519)]; 
      } 
      else if ([[UIScreen mainScreen] bounds].size.height == 480) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 431)]; 
      } 
     } 
    } 
    [UIView commitAnimations]; 
} 

代码隐藏 - >它会通过设置'Y'自动消失::

- (void) hideTabBar:(UITabBarController *) tabbarcontroller 
{ 
    [UIView beginAnimations:nil context:NULL]; 
    [UIView setAnimationDuration:0.4]; 
    for(UIView *view in tabbarcontroller.view.subviews) 
    { 
     if([view isKindOfClass:[UITabBar class]]) 
     { 
      if ([[UIScreen mainScreen] bounds].size.height == 568) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, 568, view.frame.size.width, view.frame.size.height)]; 
      } 
      else if ([[UIScreen mainScreen] bounds].size.height == 480) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, 480, view.frame.size.width, view.frame.size.height)]; 
      } 
     } 
     else 
     { 
      if ([[UIScreen mainScreen] bounds].size.height == 568) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 568)]; 
      } 
      else if ([[UIScreen mainScreen] bounds].size.height == 480) 
      { 
       [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 480)]; 
      } 
     } 
    } 

    [UIView commitAnimations]; 
} 

希望它会帮助你，如果不想在应用程序中一直分配&版本。
谢谢。当你想从上海华删除tabbarcontroller并设置其它视图作为parentviewController

-(void)setMainView 
{ 

    yourViewController *masterViewController = [[[yourViewController alloc] initWithNibName:@"yourViewController" bundle:nil] autorelease]; 
    self.navigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController]; 
    self.navigationController.navigationBar.hidden=YES; 
    self.window.rootViewController = self.navigationController; 

    CATransition *animation = [CATransition animation]; 
    [animation setDelegate:self]; 
    [animation setType:kCATransitionFade]; 
    [animation setDuration:0.5]; 
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName: 
            kCAMediaTimingFunctionEaseInEaseOut]]; 
    [[self.window layer] addAnimation:animation forKey:kAnimationKey]; 
} 

，并调用上面的方法与AppDelegate类对于防爆的对象

Answer 2

只是把这个方法AppDelegate.m文件并调用此方法..

AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate]; 
[appDelegate setMainView]; 

我希望这有助于你..