文章转载自:http://blog.csdn.net/a6472953/article/details/8363076
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在项目中经常遇到隐藏tabBar,实力很多种方法,可以解决不同情况下问题 使用中涉及到view的层次关系,下面的使用方法 1、2不做说明;在使用3、4方法时注意要在tabBar所在的rootView中调用实现(必要时使用委托,已达到所需要的目的) 举例:A(rootView 是tabBarCtroller);B(A的subView);C(B通过pushViewController) 如果想要C出现的时候将tabView隐藏(且C是全屏的,能展开到tabbar存在的位置),B显示的时候babView在显示出来 此情况明显1、2方法不能实现了,要用3、4的方法来实现; 实现方式:B在pushViewController的时候调用其委托函数(即B消失C出现时tabbar隐藏) if([delegaterespondsToSelector:@selector(hidenTabbar:)]) { [delegatehidenTabbar:YES]; } 在A中实现B的委托代码就是3、4; 同样在B的viewWillAppear中也调用其委托:NO;(B显示时tabbar出现) -(void)viewWillAppear:(BOOL)animated { if([delegate respondsToSelector:@selector(hidenTabbar:)]) { [delegatehidenTabbar:NO]; } } 1://隐藏tabBar WebViewController *webVc = [[WebViewController alloc] init]; webVc.hidesBottomBarWhenPushed = YES; [self.navigationController pushViewController:webVc animated:YES]; webVc.hidesBottomBarWhenPushed = NO; [webVc release]; 2.系统方法 self.hidesBottomBarWhenPushed = YES; 3:自定义tabBar时候,由tabBarController管理的 //隐藏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]; } //调整子视图 for (UIView *subView in self.view.subviews) { if ([subView isKindOfClass:NSClassFromString(@"UITransitionView")]) { //调整子视图的高度,UITransitionView视图为UINavitaionController的根视图 // 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:类似方法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; }