隱藏TabBar

在項目中經常遇到隱藏tabBar,實力很多種方法，可以解決不同情況下問題

1：//隱藏tabBar
    WebViewController *webVc = [[WebViewController alloc] init];
    webVc.hidesBottomBarWhenPushed = YES;
    [self.navigationController pushViewController:webVc animated:YES];
    webVc.hidesBottomBarWhenPushed = NO;
    [webVc release];
2.系統方法    self.hidesBottomBarWhenPushed = YES;

3:自定義tabBar時候，由tabBarController管理的

//隱藏tabBar
- (void) hideTabBar:(BOOL) hidden{
   
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0];
   
    for(UIView *view in self.tabBarController.view.subviews)
    {
        if([view isKindOfClass:[UITabBar class]])
        {
            if (hidden) {
                [view setFrame:CGRectMake(view.frame.origin.x, iphone5?568:480, view.frame.size.width, view.frame.size.height)];
            } else {
                [view setFrame:CGRectMake(view.frame.origin.x, iphone5?568-49:480-49, view.frame.size.width, view.frame.size.height)];
            }
        }
        else
        {
            if (hidden) {
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, iphone5?568:480)];
            } else {
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width,  iphone5?568-49:480-49)];
            }
        }
    }
   
    [UIView commitAnimations];
}
調整子視圖
for (UIView *subView in self.view.subviews) {
        if ([subView isKindOfClass:NSClassFromString(@"UITransitionView")]) {
            //調整子視圖的高度，UITransitionView視圖為UINavitaionController的根視圖
            //            subView.frame = CGRectMake(subView.frame.origin.x, subView.frame.origin.y, subView.frame.size.width, 480);
           
            CGRect frame = subView.frame;
            frame.size.height = 480;
            subView.frame = frame;
        }
    }
4：類似方法3
- (void)makeTabBarHidden:(BOOL)hide
{
    if ( [self.tabBarController.view.subviews count] < 2 )
    {
        return;
    }
    UIView *contentView;
   
    if ( [[self.tabBarController.view.subviews objectAtIndex:0] isKindOfClass:[UITabBar class]] )
    {
        contentView = [self.tabBarController.view.subviews objectAtIndex:1];
    }
    else
    {
        contentView = [self.tabBarController.view.subviews objectAtIndex:0];
    }
    //    [UIView beginAnimations:@"TabbarHide" context:nil];
    if ( hide )
    {
        contentView.frame = self.tabBarController.view.bounds;
    }
    else
    {
        contentView.frame = CGRectMake(self.tabBarController.view.bounds.origin.x,
                                       self.tabBarController.view.bounds.origin.y,
                                       self.tabBarController.view.bounds.size.width,
                                       self.tabBarController.view.bounds.size.height - self.tabBarController.tabBar.frame.size.height);
    }
   
    self.tabBarController.tabBar.hidden = hide;
}