版权声明:本文为博主原创文章,未经博主允许不得转载。
- 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;
- }